| /* Quicktime muxer plugin for GStreamer |
| * Copyright (C) 2008-2010 Thiago Santos <thiagoss@embedded.ufcg.edu.br> |
| * Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net> |
| * Copyright (C) 2010 Nokia Corporation. All rights reserved. |
| * Copyright (C) 2014 Jan Schmidt <jan@centricular.com> |
| * Contact: Stefan Kost <stefan.kost@nokia.com> |
| |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| /* |
| * Unless otherwise indicated, Source Code is licensed under MIT license. |
| * See further explanation attached in License Statement (distributed in the file |
| * LICENSE). |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy of |
| * this software and associated documentation files (the "Software"), to deal in |
| * the Software without restriction, including without limitation the rights to |
| * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
| * of the Software, and to permit persons to whom the Software is furnished to do |
| * so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| |
| /** |
| * SECTION:element-qtmux |
| * @short_description: Muxer for quicktime(.mov) files |
| * |
| * This element merges streams (audio and video) into QuickTime(.mov) files. |
| * |
| * The following background intends to explain why various similar muxers |
| * are present in this plugin. |
| * |
| * The <ulink url="http://www.apple.com/quicktime/resources/qtfileformat.pdf"> |
| * QuickTime file format specification</ulink> served as basis for the MP4 file |
| * format specification (mp4mux), and as such the QuickTime file structure is |
| * nearly identical to the so-called ISO Base Media file format defined in |
| * ISO 14496-12 (except for some media specific parts). |
| * In turn, the latter ISO Base Media format was further specialized as a |
| * Motion JPEG-2000 file format in ISO 15444-3 (mj2mux) |
| * and in various 3GPP(2) specs (gppmux). |
| * The fragmented file features defined (only) in ISO Base Media are used by |
| * ISMV files making up (a.o.) Smooth Streaming (ismlmux). |
| * |
| * A few properties (#GstQTMux:movie-timescale, #GstQTMux:trak-timescale, |
| * #GstQTMuxPad:trak-timescale) allow adjusting some technical parameters, |
| * which might be useful in (rare) cases to resolve compatibility issues in |
| * some situations. |
| * |
| * Some other properties influence the result more fundamentally. |
| * A typical mov/mp4 file's metadata (aka moov) is located at the end of the |
| * file, somewhat contrary to this usually being called "the header". |
| * However, a #GstQTMux:faststart file will (with some effort) arrange this to |
| * be located near start of the file, which then allows it e.g. to be played |
| * while downloading. Alternatively, rather than having one chunk of metadata at |
| * start (or end), there can be some metadata at start and most of the other |
| * data can be spread out into fragments of #GstQTMux:fragment-duration. |
| * If such fragmented layout is intended for streaming purposes, then |
| * #GstQTMux:streamable allows foregoing to add index metadata (at the end of |
| * file). |
| * |
| * When the maximum duration to be recorded can be known in advance, #GstQTMux |
| * also supports a 'Robust Muxing' mode. In robust muxing mode, space for the |
| * headers are reserved at the start of muxing, and rewritten at a configurable |
| * interval, so that the output file is always playable, even if the recording |
| * is interrupted uncleanly by a crash. Robust muxing mode requires a seekable |
| * output, such as filesink, because it needs to rewrite the start of the file. |
| * |
| * To enable robust muxing mode, set the #GstQTMux::reserved-moov-update-period |
| * and #GstQTMux::reserved-max-duration property. Also present is the |
| * #GstQTMux::reserved-bytes-per-sec property, which can be increased if |
| * for some reason the default is not large enough and the initial reserved |
| * space for headers is too small. Applications can monitor the |
| * #GstQTMux::reserved-duration-remaining property to see how close to full |
| * the reserved space is becoming. |
| * |
| * Applications that wish to be able to use/edit a file while it is being |
| * written to by live content, can use the "Robust Prefill Muxing" mode. That |
| * mode is a variant of the "Robust Muxing" mode in that it will pre-allocate a |
| * completely valid header from the start for all tracks (i.e. it appears as |
| * though the file is "reserved-max-duration" long with all samples |
| * present). This mode can be enabled by setting the |
| * #GstQTMux::reserved-moov-update-period and #GstQTMux::reserved-prefill |
| * properties. Note that this mode is only possible with input streams that have |
| * a fixed sample size (such as raw audio and Prores Video) and that don't |
| * have reordered samples. |
| * |
| * <refsect2> |
| * <title>Example pipelines</title> |
| * |[ |
| * gst-launch-1.0 v4l2src num-buffers=500 ! video/x-raw,width=320,height=240 ! videoconvert ! qtmux ! filesink location=video.mov |
| * ]| |
| * Records a video stream captured from a v4l2 device and muxes it into a qt file. |
| * </refsect2> |
| */ |
| |
| /* |
| * Based on avimux |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <glib/gstdio.h> |
| |
| #include <gst/gst.h> |
| #include <gst/base/gstcollectpads.h> |
| #include <gst/base/gstbytereader.h> |
| #include <gst/base/gstbitreader.h> |
| #include <gst/audio/audio.h> |
| #include <gst/video/video.h> |
| #include <gst/tag/tag.h> |
| #include <gst/pbutils/pbutils.h> |
| |
| #include <sys/types.h> |
| #ifdef G_OS_WIN32 |
| #include <io.h> /* lseek, open, close, read */ |
| #undef lseek |
| #define lseek _lseeki64 |
| #undef off_t |
| #define off_t guint64 |
| #endif |
| |
| #ifdef _MSC_VER |
| #define ftruncate g_win32_ftruncate |
| #endif |
| |
| #ifdef HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| |
| #include "gstqtmux.h" |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_qt_mux_debug); |
| #define GST_CAT_DEFAULT gst_qt_mux_debug |
| |
| #ifndef ABSDIFF |
| #define ABSDIFF(a, b) ((a) > (b) ? (a) - (b) : (b) - (a)) |
| #endif |
| |
| /* Hacker notes. |
| * |
| * The basic building blocks of MP4 files are: |
| * - an 'ftyp' box at the very start |
| * - an 'mdat' box which contains the raw audio/video/subtitle data; |
| * this is just a bunch of bytes, completely unframed and possibly |
| * unordered with no additional meta-information |
| * - a 'moov' box that contains information about the different streams |
| * and what they contain, as well as sample tables for each stream |
| * that tell the demuxer where in the mdat box each buffer/sample is |
| * and what its duration/timestamp etc. is, and whether it's a |
| * keyframe etc. |
| * Additionally, fragmented MP4 works by writing chunks of data in |
| * pairs of 'moof' and 'mdat' boxes: |
| * - 'moof' boxes, header preceding each mdat fragment describing the |
| * contents, like a moov but only for that fragment. |
| * - a 'mfra' box for Fragmented MP4, which is written at the end and |
| * contains a summary of all fragments and seek tables. |
| * |
| * Currently mp4mux can work in 4 different modes / generate 4 types |
| * of output files/streams: |
| * |
| * - Normal mp4: mp4mux will write a little ftyp identifier at the |
| * beginning, then start an mdat box into which it will write all the |
| * sample data. At EOS it will then write the moov header with track |
| * headers and sample tables at the end of the file, and rewrite the |
| * start of the file to fix up the mdat box size at the beginning. |
| * It has to wait for EOS to write the moov (which includes the |
| * sample tables) because it doesn't know how much space those |
| * tables will be. The output downstream must be seekable to rewrite |
| * the mdat box at EOS. |
| * |
| * - Fragmented mp4: moov header with track headers at start |
| * but no sample table, followed by N fragments, each containing |
| * track headers with sample tables followed by some data. Downstream |
| * does not need to be seekable if the 'streamable' flag is TRUE, |
| * as the final mfra and total duration will be omitted. |
| * |
| * - Fast-start mp4: the goal here is to create a file where the moov |
| * headers are at the beginning; what mp4mux will do is write all |
| * sample data into a temp file and build moov header plus sample |
| * tables in memory and then when EOS comes, it will push out the |
| * moov header plus sample tables at the beginning, followed by the |
| * mdat sample data at the end which is read in from the temp file |
| * Files created in this mode are better for streaming over the |
| * network, since the client doesn't have to seek to the end of the |
| * file to get the headers, but it requires copying all sample data |
| * out of the temp file at EOS, which can be expensive. Downstream does |
| * not need to be seekable, because of the use of the temp file. |
| * |
| * - Robust Muxing mode: In this mode, qtmux uses the reserved-max-duration |
| * and reserved-moov-update-period properties to reserve free space |
| * at the start of the file and periodically write the MOOV atom out |
| * to it. That means that killing the muxing at any point still |
| * results in a playable file, at the cost of wasting some amount of |
| * free space at the start of file. The approximate recording duration |
| * has to be known in advance to estimate how much free space to reserve |
| * for the moov, and the downstream must be seekable. |
| * If the moov header grows larger than the reserved space, an error |
| * is generated - so it's better to over-estimate the amount of space |
| * to reserve. To ensure the file is playable at any point, the moov |
| * is updated using a 'ping-pong' strategy, so the output is never in |
| * an invalid state. |
| */ |
| |
| #ifndef GST_REMOVE_DEPRECATED |
| enum |
| { |
| DTS_METHOD_DD, |
| DTS_METHOD_REORDER, |
| DTS_METHOD_ASC |
| }; |
| |
| static GType |
| gst_qt_mux_dts_method_get_type (void) |
| { |
| static GType gst_qt_mux_dts_method = 0; |
| |
| if (!gst_qt_mux_dts_method) { |
| static const GEnumValue dts_methods[] = { |
| {DTS_METHOD_DD, "delta/duration", "dd"}, |
| {DTS_METHOD_REORDER, "reorder", "reorder"}, |
| {DTS_METHOD_ASC, "ascending", "asc"}, |
| {0, NULL, NULL}, |
| }; |
| |
| gst_qt_mux_dts_method = |
| g_enum_register_static ("GstQTMuxDtsMethods", dts_methods); |
| } |
| |
| return gst_qt_mux_dts_method; |
| } |
| |
| #define GST_TYPE_QT_MUX_DTS_METHOD \ |
| (gst_qt_mux_dts_method_get_type ()) |
| #endif |
| |
| enum |
| { |
| PROP_PAD_0, |
| PROP_PAD_TRAK_TIMESCALE, |
| }; |
| |
| #define DEFAULT_PAD_TRAK_TIMESCALE 0 |
| |
| GType gst_qt_mux_pad_get_type (void); |
| |
| #define GST_TYPE_QT_MUX_PAD \ |
| (gst_qt_mux_pad_get_type()) |
| #define GST_QT_MUX_PAD(obj) \ |
| (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_QT_MUX_PAD, GstQTMuxPad)) |
| #define GST_QT_MUX_PAD_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_QT_MUX_PAD, GstQTMuxPadClass)) |
| #define GST_IS_QT_MUX_PAD(obj) \ |
| (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_QT_MUX_PAD)) |
| #define GST_IS_QT_MUX_PAD_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_QT_MUX_PAD)) |
| #define GST_QT_MUX_PAD_CAST(obj) \ |
| ((GstQTMuxPad *)(obj)) |
| |
| typedef struct _GstQTMuxPad GstQTMuxPad; |
| typedef struct _GstQTMuxPadClass GstQTMuxPadClass; |
| |
| struct _GstQTMuxPad |
| { |
| GstPad parent; |
| |
| guint32 trak_timescale; |
| }; |
| |
| struct _GstQTMuxPadClass |
| { |
| GstPadClass parent; |
| }; |
| |
| G_DEFINE_TYPE (GstQTMuxPad, gst_qt_mux_pad, GST_TYPE_PAD); |
| |
| static void |
| gst_qt_mux_pad_set_property (GObject * object, |
| guint prop_id, const GValue * value, GParamSpec * pspec) |
| { |
| GstQTMuxPad *pad = GST_QT_MUX_PAD_CAST (object); |
| |
| GST_OBJECT_LOCK (pad); |
| switch (prop_id) { |
| case PROP_PAD_TRAK_TIMESCALE: |
| pad->trak_timescale = g_value_get_uint (value); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| GST_OBJECT_UNLOCK (pad); |
| } |
| |
| static void |
| gst_qt_mux_pad_get_property (GObject * object, |
| guint prop_id, GValue * value, GParamSpec * pspec) |
| { |
| GstQTMuxPad *pad = GST_QT_MUX_PAD_CAST (object); |
| |
| GST_OBJECT_LOCK (pad); |
| switch (prop_id) { |
| case PROP_PAD_TRAK_TIMESCALE: |
| g_value_set_uint (value, pad->trak_timescale); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| GST_OBJECT_UNLOCK (pad); |
| } |
| |
| static void |
| gst_qt_mux_pad_class_init (GstQTMuxPadClass * klass) |
| { |
| GObjectClass *gobject_class = (GObjectClass *) klass; |
| |
| gobject_class->get_property = gst_qt_mux_pad_get_property; |
| gobject_class->set_property = gst_qt_mux_pad_set_property; |
| |
| g_object_class_install_property (gobject_class, PROP_PAD_TRAK_TIMESCALE, |
| g_param_spec_uint ("trak-timescale", "Track timescale", |
| "Timescale to use for this pad's trak (units per second, 0 is automatic)", |
| 0, G_MAXUINT32, DEFAULT_PAD_TRAK_TIMESCALE, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| } |
| |
| static void |
| gst_qt_mux_pad_init (GstQTMuxPad * pad) |
| { |
| pad->trak_timescale = DEFAULT_PAD_TRAK_TIMESCALE; |
| } |
| |
| static guint32 |
| gst_qt_mux_pad_get_timescale (GstQTMuxPad * pad) |
| { |
| guint32 timescale; |
| |
| GST_OBJECT_LOCK (pad); |
| timescale = pad->trak_timescale; |
| GST_OBJECT_UNLOCK (pad); |
| |
| return timescale; |
| } |
| |
| /* QTMux signals and args */ |
| enum |
| { |
| /* FILL ME */ |
| LAST_SIGNAL |
| }; |
| |
| enum |
| { |
| PROP_0, |
| PROP_MOVIE_TIMESCALE, |
| PROP_TRAK_TIMESCALE, |
| PROP_FAST_START, |
| PROP_FAST_START_TEMP_FILE, |
| PROP_MOOV_RECOV_FILE, |
| PROP_FRAGMENT_DURATION, |
| PROP_STREAMABLE, |
| PROP_RESERVED_MAX_DURATION, |
| PROP_RESERVED_DURATION_REMAINING, |
| PROP_RESERVED_MOOV_UPDATE_PERIOD, |
| PROP_RESERVED_BYTES_PER_SEC, |
| PROP_RESERVED_PREFILL, |
| #ifndef GST_REMOVE_DEPRECATED |
| PROP_DTS_METHOD, |
| #endif |
| PROP_DO_CTTS, |
| PROP_INTERLEAVE_BYTES, |
| PROP_INTERLEAVE_TIME, |
| PROP_MAX_RAW_AUDIO_DRIFT, |
| }; |
| |
| /* some spare for header size as well */ |
| #define MDAT_LARGE_FILE_LIMIT ((guint64) 1024 * 1024 * 1024 * 2) |
| |
| #define DEFAULT_MOVIE_TIMESCALE 0 |
| #define DEFAULT_TRAK_TIMESCALE 0 |
| #define DEFAULT_DO_CTTS TRUE |
| #define DEFAULT_FAST_START FALSE |
| #define DEFAULT_FAST_START_TEMP_FILE NULL |
| #define DEFAULT_MOOV_RECOV_FILE NULL |
| #define DEFAULT_FRAGMENT_DURATION 0 |
| #define DEFAULT_STREAMABLE TRUE |
| #ifndef GST_REMOVE_DEPRECATED |
| #define DEFAULT_DTS_METHOD DTS_METHOD_REORDER |
| #endif |
| #define DEFAULT_RESERVED_MAX_DURATION GST_CLOCK_TIME_NONE |
| #define DEFAULT_RESERVED_MOOV_UPDATE_PERIOD GST_CLOCK_TIME_NONE |
| #define DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK 550 |
| #define DEFAULT_RESERVED_PREFILL FALSE |
| #define DEFAULT_INTERLEAVE_BYTES 0 |
| #define DEFAULT_INTERLEAVE_TIME 250*GST_MSECOND |
| #define DEFAULT_MAX_RAW_AUDIO_DRIFT 40 * GST_MSECOND |
| |
| static void gst_qt_mux_finalize (GObject * object); |
| |
| static GstStateChangeReturn gst_qt_mux_change_state (GstElement * element, |
| GstStateChange transition); |
| |
| /* property functions */ |
| static void gst_qt_mux_set_property (GObject * object, |
| guint prop_id, const GValue * value, GParamSpec * pspec); |
| static void gst_qt_mux_get_property (GObject * object, |
| guint prop_id, GValue * value, GParamSpec * pspec); |
| |
| /* pad functions */ |
| static GstPad *gst_qt_mux_request_new_pad (GstElement * element, |
| GstPadTemplate * templ, const gchar * name, const GstCaps * caps); |
| static void gst_qt_mux_release_pad (GstElement * element, GstPad * pad); |
| |
| /* event */ |
| static gboolean gst_qt_mux_sink_event (GstCollectPads * pads, |
| GstCollectData * data, GstEvent * event, gpointer user_data); |
| |
| static GstFlowReturn gst_qt_mux_collected (GstCollectPads * pads, |
| gpointer user_data); |
| static GstFlowReturn gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad, |
| GstBuffer * buf); |
| |
| static GstFlowReturn |
| gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux); |
| |
| static void gst_qt_mux_update_global_statistics (GstQTMux * qtmux); |
| static void gst_qt_mux_update_edit_lists (GstQTMux * qtmux); |
| |
| static GstElementClass *parent_class = NULL; |
| |
| static void |
| gst_qt_mux_base_init (gpointer g_class) |
| { |
| GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); |
| GstQTMuxClass *klass = (GstQTMuxClass *) g_class; |
| GstQTMuxClassParams *params; |
| GstPadTemplate *videosinktempl, *audiosinktempl, *subtitlesinktempl; |
| GstPadTemplate *srctempl; |
| gchar *longname, *description; |
| |
| params = |
| (GstQTMuxClassParams *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (g_class), |
| GST_QT_MUX_PARAMS_QDATA); |
| g_assert (params != NULL); |
| |
| /* construct the element details struct */ |
| longname = g_strdup_printf ("%s Muxer", params->prop->long_name); |
| description = g_strdup_printf ("Multiplex audio and video into a %s file", |
| params->prop->long_name); |
| gst_element_class_set_static_metadata (element_class, longname, |
| "Codec/Muxer", description, |
| "Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>"); |
| g_free (longname); |
| g_free (description); |
| |
| /* pad templates */ |
| srctempl = gst_pad_template_new ("src", GST_PAD_SRC, |
| GST_PAD_ALWAYS, params->src_caps); |
| gst_element_class_add_pad_template (element_class, srctempl); |
| |
| if (params->audio_sink_caps) { |
| audiosinktempl = gst_pad_template_new_with_gtype ("audio_%u", |
| GST_PAD_SINK, GST_PAD_REQUEST, params->audio_sink_caps, |
| GST_TYPE_QT_MUX_PAD); |
| gst_element_class_add_pad_template (element_class, audiosinktempl); |
| } |
| |
| if (params->video_sink_caps) { |
| videosinktempl = gst_pad_template_new_with_gtype ("video_%u", |
| GST_PAD_SINK, GST_PAD_REQUEST, params->video_sink_caps, |
| GST_TYPE_QT_MUX_PAD); |
| gst_element_class_add_pad_template (element_class, videosinktempl); |
| } |
| |
| if (params->subtitle_sink_caps) { |
| subtitlesinktempl = gst_pad_template_new_with_gtype ("subtitle_%u", |
| GST_PAD_SINK, GST_PAD_REQUEST, params->subtitle_sink_caps, |
| GST_TYPE_QT_MUX_PAD); |
| gst_element_class_add_pad_template (element_class, subtitlesinktempl); |
| } |
| |
| klass->format = params->prop->format; |
| } |
| |
| static void |
| gst_qt_mux_class_init (GstQTMuxClass * klass) |
| { |
| GObjectClass *gobject_class; |
| GstElementClass *gstelement_class; |
| GParamFlags streamable_flags; |
| const gchar *streamable_desc; |
| gboolean streamable; |
| #define STREAMABLE_DESC "If set to true, the output should be as if it is to "\ |
| "be streamed and hence no indexes written or duration written." |
| |
| gobject_class = (GObjectClass *) klass; |
| gstelement_class = (GstElementClass *) klass; |
| |
| parent_class = g_type_class_peek_parent (klass); |
| |
| gobject_class->finalize = gst_qt_mux_finalize; |
| gobject_class->get_property = gst_qt_mux_get_property; |
| gobject_class->set_property = gst_qt_mux_set_property; |
| |
| streamable_flags = G_PARAM_READWRITE | G_PARAM_CONSTRUCT; |
| if (klass->format == GST_QT_MUX_FORMAT_ISML) { |
| streamable_desc = STREAMABLE_DESC; |
| streamable = DEFAULT_STREAMABLE; |
| } else { |
| streamable_desc = |
| STREAMABLE_DESC " (DEPRECATED, only valid for fragmented MP4)"; |
| streamable_flags |= G_PARAM_DEPRECATED; |
| streamable = FALSE; |
| } |
| |
| g_object_class_install_property (gobject_class, PROP_MOVIE_TIMESCALE, |
| g_param_spec_uint ("movie-timescale", "Movie timescale", |
| "Timescale to use in the movie (units per second, 0 == default)", |
| 0, G_MAXUINT32, DEFAULT_MOVIE_TIMESCALE, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_TRAK_TIMESCALE, |
| g_param_spec_uint ("trak-timescale", "Track timescale", |
| "Timescale to use for the tracks (units per second, 0 is automatic)", |
| 0, G_MAXUINT32, DEFAULT_TRAK_TIMESCALE, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_DO_CTTS, |
| g_param_spec_boolean ("presentation-time", |
| "Include presentation-time info", |
| "Calculate and include presentation/composition time " |
| "(in addition to decoding time)", DEFAULT_DO_CTTS, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| #ifndef GST_REMOVE_DEPRECATED |
| g_object_class_install_property (gobject_class, PROP_DTS_METHOD, |
| g_param_spec_enum ("dts-method", "dts-method", |
| "Method to determine DTS time (DEPRECATED)", |
| GST_TYPE_QT_MUX_DTS_METHOD, DEFAULT_DTS_METHOD, |
| G_PARAM_DEPRECATED | G_PARAM_READWRITE | G_PARAM_CONSTRUCT | |
| G_PARAM_STATIC_STRINGS)); |
| #endif |
| g_object_class_install_property (gobject_class, PROP_FAST_START, |
| g_param_spec_boolean ("faststart", "Format file to faststart", |
| "If the file should be formatted for faststart (headers first)", |
| DEFAULT_FAST_START, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_FAST_START_TEMP_FILE, |
| g_param_spec_string ("faststart-file", "File to use for storing buffers", |
| "File that will be used temporarily to store data from the stream " |
| "when creating a faststart file. If null a filepath will be " |
| "created automatically", DEFAULT_FAST_START_TEMP_FILE, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_MOOV_RECOV_FILE, |
| g_param_spec_string ("moov-recovery-file", |
| "File to store data for posterior moov atom recovery", |
| "File to be used to store " |
| "data for moov atom making movie file recovery possible in case " |
| "of a crash during muxing. Null for disabled. (Experimental)", |
| DEFAULT_MOOV_RECOV_FILE, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_FRAGMENT_DURATION, |
| g_param_spec_uint ("fragment-duration", "Fragment duration", |
| "Fragment durations in ms (produce a fragmented file if > 0)", |
| 0, G_MAXUINT32, klass->format == GST_QT_MUX_FORMAT_ISML ? |
| 2000 : DEFAULT_FRAGMENT_DURATION, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_STREAMABLE, |
| g_param_spec_boolean ("streamable", "Streamable", streamable_desc, |
| streamable, streamable_flags | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_RESERVED_MAX_DURATION, |
| g_param_spec_uint64 ("reserved-max-duration", |
| "Reserved maximum file duration (ns)", |
| "When set to a value > 0, reserves space for index tables at the " |
| "beginning of the file.", |
| 0, G_MAXUINT64, DEFAULT_RESERVED_MAX_DURATION, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, |
| PROP_RESERVED_DURATION_REMAINING, |
| g_param_spec_uint64 ("reserved-duration-remaining", |
| "Report the approximate amount of remaining recording space (ns)", |
| "Reports the approximate amount of remaining moov header space " |
| "reserved using reserved-max-duration", 0, G_MAXUINT64, 0, |
| G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, |
| PROP_RESERVED_MOOV_UPDATE_PERIOD, |
| g_param_spec_uint64 ("reserved-moov-update-period", |
| "Interval at which to update index tables (ns)", |
| "When used with reserved-max-duration, periodically updates the " |
| "index tables with information muxed so far.", 0, G_MAXUINT64, |
| DEFAULT_RESERVED_MOOV_UPDATE_PERIOD, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_RESERVED_BYTES_PER_SEC, |
| g_param_spec_uint ("reserved-bytes-per-sec", |
| "Reserved MOOV bytes per second, per track", |
| "Multiplier for converting reserved-max-duration into bytes of header to reserve, per second, per track", |
| 0, 10000, DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_RESERVED_PREFILL, |
| g_param_spec_boolean ("reserved-prefill", |
| "Reserved Prefill Samples Table", |
| "Prefill samples table of reserved duration", |
| DEFAULT_RESERVED_PREFILL, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_INTERLEAVE_BYTES, |
| g_param_spec_uint64 ("interleave-bytes", "Interleave (bytes)", |
| "Interleave between streams in bytes", |
| 0, G_MAXUINT64, DEFAULT_INTERLEAVE_BYTES, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_INTERLEAVE_TIME, |
| g_param_spec_uint64 ("interleave-time", "Interleave (time)", |
| "Interleave between streams in nanoseconds", |
| 0, G_MAXUINT64, DEFAULT_INTERLEAVE_TIME, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_MAX_RAW_AUDIO_DRIFT, |
| g_param_spec_uint64 ("max-raw-audio-drift", "Max Raw Audio Drift", |
| "Maximum allowed drift of raw audio samples vs. timestamps in nanoseconds", |
| 0, G_MAXUINT64, DEFAULT_MAX_RAW_AUDIO_DRIFT, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| gstelement_class->request_new_pad = |
| GST_DEBUG_FUNCPTR (gst_qt_mux_request_new_pad); |
| gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_qt_mux_change_state); |
| gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_qt_mux_release_pad); |
| } |
| |
| static void |
| gst_qt_mux_pad_reset (GstQTPad * qtpad) |
| { |
| qtpad->fourcc = 0; |
| qtpad->is_out_of_order = FALSE; |
| qtpad->sample_size = 0; |
| qtpad->sync = FALSE; |
| qtpad->last_dts = 0; |
| qtpad->sample_offset = 0; |
| qtpad->dts_adjustment = GST_CLOCK_TIME_NONE; |
| qtpad->first_ts = GST_CLOCK_TIME_NONE; |
| qtpad->first_dts = GST_CLOCK_TIME_NONE; |
| qtpad->prepare_buf_func = NULL; |
| qtpad->create_empty_buffer = NULL; |
| qtpad->avg_bitrate = 0; |
| qtpad->max_bitrate = 0; |
| qtpad->total_duration = 0; |
| qtpad->total_bytes = 0; |
| qtpad->sparse = FALSE; |
| |
| gst_buffer_replace (&qtpad->last_buf, NULL); |
| |
| if (qtpad->tags) { |
| gst_tag_list_unref (qtpad->tags); |
| qtpad->tags = NULL; |
| } |
| |
| /* reference owned elsewhere */ |
| qtpad->trak = NULL; |
| qtpad->tc_trak = NULL; |
| |
| if (qtpad->traf) { |
| atom_traf_free (qtpad->traf); |
| qtpad->traf = NULL; |
| } |
| atom_array_clear (&qtpad->fragment_buffers); |
| if (qtpad->samples) |
| g_array_unref (qtpad->samples); |
| qtpad->samples = NULL; |
| |
| /* reference owned elsewhere */ |
| qtpad->tfra = NULL; |
| |
| qtpad->first_pts = GST_CLOCK_TIME_NONE; |
| qtpad->tc_pos = -1; |
| if (qtpad->first_tc) |
| gst_video_time_code_free (qtpad->first_tc); |
| qtpad->first_tc = NULL; |
| |
| if (qtpad->raw_audio_adapter) |
| gst_object_unref (qtpad->raw_audio_adapter); |
| qtpad->raw_audio_adapter = NULL; |
| } |
| |
| /* |
| * Takes GstQTMux back to its initial state |
| */ |
| static void |
| gst_qt_mux_reset (GstQTMux * qtmux, gboolean alloc) |
| { |
| GSList *walk; |
| |
| qtmux->state = GST_QT_MUX_STATE_NONE; |
| qtmux->header_size = 0; |
| qtmux->mdat_size = 0; |
| qtmux->moov_pos = 0; |
| qtmux->mdat_pos = 0; |
| qtmux->longest_chunk = GST_CLOCK_TIME_NONE; |
| qtmux->fragment_sequence = 0; |
| |
| if (qtmux->ftyp) { |
| atom_ftyp_free (qtmux->ftyp); |
| qtmux->ftyp = NULL; |
| } |
| if (qtmux->moov) { |
| atom_moov_free (qtmux->moov); |
| qtmux->moov = NULL; |
| } |
| if (qtmux->mfra) { |
| atom_mfra_free (qtmux->mfra); |
| qtmux->mfra = NULL; |
| } |
| if (qtmux->fast_start_file) { |
| fclose (qtmux->fast_start_file); |
| g_remove (qtmux->fast_start_file_path); |
| qtmux->fast_start_file = NULL; |
| } |
| if (qtmux->moov_recov_file) { |
| fclose (qtmux->moov_recov_file); |
| qtmux->moov_recov_file = NULL; |
| } |
| for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) { |
| AtomInfo *ainfo = (AtomInfo *) walk->data; |
| ainfo->free_func (ainfo->atom); |
| g_free (ainfo); |
| } |
| g_slist_free (qtmux->extra_atoms); |
| qtmux->extra_atoms = NULL; |
| |
| GST_OBJECT_LOCK (qtmux); |
| gst_tag_setter_reset_tags (GST_TAG_SETTER (qtmux)); |
| GST_OBJECT_UNLOCK (qtmux); |
| |
| /* reset pad data */ |
| for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) { |
| GstQTPad *qtpad = (GstQTPad *) walk->data; |
| gst_qt_mux_pad_reset (qtpad); |
| |
| /* hm, moov_free above yanked the traks away from us, |
| * so do not free, but do clear */ |
| qtpad->trak = NULL; |
| } |
| |
| if (alloc) { |
| qtmux->moov = atom_moov_new (qtmux->context); |
| /* ensure all is as nice and fresh as request_new_pad would provide it */ |
| for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) { |
| GstQTPad *qtpad = (GstQTPad *) walk->data; |
| |
| qtpad->trak = atom_trak_new (qtmux->context); |
| atom_moov_add_trak (qtmux->moov, qtpad->trak); |
| } |
| } |
| |
| qtmux->current_pad = NULL; |
| qtmux->current_chunk_size = 0; |
| qtmux->current_chunk_duration = 0; |
| qtmux->current_chunk_offset = -1; |
| |
| qtmux->reserved_moov_size = 0; |
| qtmux->last_moov_update = GST_CLOCK_TIME_NONE; |
| qtmux->muxed_since_last_update = 0; |
| qtmux->reserved_duration_remaining = GST_CLOCK_TIME_NONE; |
| } |
| |
| static void |
| gst_qt_mux_init (GstQTMux * qtmux, GstQTMuxClass * qtmux_klass) |
| { |
| GstElementClass *klass = GST_ELEMENT_CLASS (qtmux_klass); |
| GstPadTemplate *templ; |
| |
| templ = gst_element_class_get_pad_template (klass, "src"); |
| qtmux->srcpad = gst_pad_new_from_template (templ, "src"); |
| gst_pad_use_fixed_caps (qtmux->srcpad); |
| gst_element_add_pad (GST_ELEMENT (qtmux), qtmux->srcpad); |
| |
| qtmux->sinkpads = NULL; |
| qtmux->collect = gst_collect_pads_new (); |
| gst_collect_pads_set_event_function (qtmux->collect, |
| GST_DEBUG_FUNCPTR (gst_qt_mux_sink_event), qtmux); |
| gst_collect_pads_set_clip_function (qtmux->collect, |
| GST_DEBUG_FUNCPTR (gst_collect_pads_clip_running_time), qtmux); |
| gst_collect_pads_set_function (qtmux->collect, |
| GST_DEBUG_FUNCPTR (gst_qt_mux_collected), qtmux); |
| |
| /* properties set to default upon construction */ |
| |
| qtmux->reserved_max_duration = DEFAULT_RESERVED_MAX_DURATION; |
| qtmux->reserved_moov_update_period = DEFAULT_RESERVED_MOOV_UPDATE_PERIOD; |
| qtmux->reserved_bytes_per_sec_per_trak = |
| DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK; |
| qtmux->interleave_bytes = DEFAULT_INTERLEAVE_BYTES; |
| qtmux->interleave_time = DEFAULT_INTERLEAVE_TIME; |
| qtmux->max_raw_audio_drift = DEFAULT_MAX_RAW_AUDIO_DRIFT; |
| |
| /* always need this */ |
| qtmux->context = |
| atoms_context_new (gst_qt_mux_map_format_to_flavor (qtmux_klass->format)); |
| |
| /* internals to initial state */ |
| gst_qt_mux_reset (qtmux, TRUE); |
| } |
| |
| |
| static void |
| gst_qt_mux_finalize (GObject * object) |
| { |
| GstQTMux *qtmux = GST_QT_MUX_CAST (object); |
| |
| gst_qt_mux_reset (qtmux, FALSE); |
| |
| g_free (qtmux->fast_start_file_path); |
| g_free (qtmux->moov_recov_file_path); |
| |
| atoms_context_free (qtmux->context); |
| gst_object_unref (qtmux->collect); |
| |
| g_slist_free (qtmux->sinkpads); |
| |
| G_OBJECT_CLASS (parent_class)->finalize (object); |
| } |
| |
| static GstBuffer * |
| gst_qt_mux_prepare_jpc_buffer (GstQTPad * qtpad, GstBuffer * buf, |
| GstQTMux * qtmux) |
| { |
| GstBuffer *newbuf; |
| GstMapInfo map; |
| gsize size; |
| |
| GST_LOG_OBJECT (qtmux, "Preparing jpc buffer"); |
| |
| if (buf == NULL) |
| return NULL; |
| |
| size = gst_buffer_get_size (buf); |
| newbuf = gst_buffer_new_and_alloc (size + 8); |
| gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_ALL, 8, size); |
| |
| gst_buffer_map (newbuf, &map, GST_MAP_WRITE); |
| GST_WRITE_UINT32_BE (map.data, map.size); |
| GST_WRITE_UINT32_LE (map.data + 4, FOURCC_jp2c); |
| |
| gst_buffer_unmap (buf, &map); |
| gst_buffer_unref (buf); |
| |
| return newbuf; |
| } |
| |
| static GstBuffer * |
| gst_qt_mux_prepare_tx3g_buffer (GstQTPad * qtpad, GstBuffer * buf, |
| GstQTMux * qtmux) |
| { |
| GstBuffer *newbuf; |
| GstMapInfo frommap; |
| GstMapInfo tomap; |
| gsize size; |
| const guint8 *dataend; |
| |
| GST_LOG_OBJECT (qtmux, "Preparing tx3g buffer %" GST_PTR_FORMAT, buf); |
| |
| if (buf == NULL) |
| return NULL; |
| |
| gst_buffer_map (buf, &frommap, GST_MAP_READ); |
| |
| dataend = memchr (frommap.data, 0, frommap.size); |
| size = dataend ? dataend - frommap.data : frommap.size; |
| newbuf = gst_buffer_new_and_alloc (size + 2); |
| |
| gst_buffer_map (newbuf, &tomap, GST_MAP_WRITE); |
| |
| GST_WRITE_UINT16_BE (tomap.data, size); |
| memcpy (tomap.data + 2, frommap.data, size); |
| |
| gst_buffer_unmap (newbuf, &tomap); |
| gst_buffer_unmap (buf, &frommap); |
| |
| gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_METADATA, 0, size); |
| |
| /* gst_buffer_copy_into is trying to be too clever and |
| * won't copy duration when size is different */ |
| GST_BUFFER_DURATION (newbuf) = GST_BUFFER_DURATION (buf); |
| |
| gst_buffer_unref (buf); |
| |
| return newbuf; |
| } |
| |
| static void |
| gst_qt_mux_pad_add_ac3_extension (GstQTMux * qtmux, GstQTPad * qtpad, |
| guint8 fscod, guint8 frmsizcod, guint8 bsid, guint8 bsmod, guint8 acmod, |
| guint8 lfe_on) |
| { |
| AtomInfo *ext; |
| |
| g_return_if_fail (qtpad->trak_ste); |
| |
| ext = build_ac3_extension (fscod, bsid, bsmod, acmod, lfe_on, frmsizcod >> 1); /* bitrate_code is inside frmsizcod */ |
| |
| sample_table_entry_add_ext_atom (qtpad->trak_ste, ext); |
| } |
| |
| static GstBuffer * |
| gst_qt_mux_prepare_parse_ac3_frame (GstQTPad * qtpad, GstBuffer * buf, |
| GstQTMux * qtmux) |
| { |
| GstMapInfo map; |
| GstByteReader reader; |
| guint off; |
| |
| if (!gst_buffer_map (buf, &map, GST_MAP_READ)) { |
| GST_WARNING_OBJECT (qtpad->collect.pad, "Failed to map buffer"); |
| return buf; |
| } |
| |
| if (G_UNLIKELY (map.size < 8)) |
| goto done; |
| |
| gst_byte_reader_init (&reader, map.data, map.size); |
| off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffff0000, 0x0b770000, |
| 0, map.size); |
| |
| if (off != -1) { |
| GstBitReader bits; |
| guint8 fscod, frmsizcod, bsid, bsmod, acmod, lfe_on; |
| |
| GST_DEBUG_OBJECT (qtpad->collect.pad, "Found ac3 sync point at offset: %u", |
| off); |
| |
| gst_bit_reader_init (&bits, map.data, map.size); |
| |
| /* off + sync + crc */ |
| gst_bit_reader_skip_unchecked (&bits, off * 8 + 16 + 16); |
| |
| fscod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 2); |
| frmsizcod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 6); |
| bsid = gst_bit_reader_get_bits_uint8_unchecked (&bits, 5); |
| bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3); |
| acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3); |
| |
| if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */ |
| gst_bit_reader_skip_unchecked (&bits, 2); |
| if ((acmod & 0x4)) /* if a surround channel exists */ |
| gst_bit_reader_skip_unchecked (&bits, 2); |
| if (acmod == 0x2) /* if in 2/0 mode */ |
| gst_bit_reader_skip_unchecked (&bits, 2); |
| |
| lfe_on = gst_bit_reader_get_bits_uint8_unchecked (&bits, 1); |
| |
| gst_qt_mux_pad_add_ac3_extension (qtmux, qtpad, fscod, frmsizcod, bsid, |
| bsmod, acmod, lfe_on); |
| |
| /* AC-3 spec says that those values should be constant for the |
| * whole stream when muxed in mp4. We trust the input follows it */ |
| GST_DEBUG_OBJECT (qtpad->collect.pad, "Data parsed, removing " |
| "prepare buffer function"); |
| qtpad->prepare_buf_func = NULL; |
| } |
| |
| done: |
| gst_buffer_unmap (buf, &map); |
| return buf; |
| } |
| |
| static GstBuffer * |
| gst_qt_mux_create_empty_tx3g_buffer (GstQTPad * qtpad, gint64 duration) |
| { |
| guint8 *data; |
| |
| data = g_malloc (2); |
| GST_WRITE_UINT16_BE (data, 0); |
| |
| return gst_buffer_new_wrapped (data, 2); |
| } |
| |
| static void |
| gst_qt_mux_add_mp4_tag (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| switch (gst_tag_get_type (tag)) { |
| /* strings */ |
| case G_TYPE_STRING: |
| { |
| gchar *str = NULL; |
| |
| if (!gst_tag_list_get_string (list, tag, &str) || !str) |
| break; |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s", |
| GST_FOURCC_ARGS (fourcc), str); |
| atom_udta_add_str_tag (udta, fourcc, str); |
| g_free (str); |
| break; |
| } |
| /* double */ |
| case G_TYPE_DOUBLE: |
| { |
| gdouble value; |
| |
| if (!gst_tag_list_get_double (list, tag, &value)) |
| break; |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u", |
| GST_FOURCC_ARGS (fourcc), (gint) value); |
| atom_udta_add_uint_tag (udta, fourcc, 21, (gint) value); |
| break; |
| } |
| case G_TYPE_UINT: |
| { |
| guint value = 0; |
| if (tag2) { |
| /* paired unsigned integers */ |
| guint count = 0; |
| gboolean got_tag; |
| |
| got_tag = gst_tag_list_get_uint (list, tag, &value); |
| got_tag = gst_tag_list_get_uint (list, tag2, &count) || got_tag; |
| if (!got_tag) |
| break; |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u/%u", |
| GST_FOURCC_ARGS (fourcc), value, count); |
| atom_udta_add_uint_tag (udta, fourcc, 0, |
| value << 16 | (count & 0xFFFF)); |
| } else { |
| /* unpaired unsigned integers */ |
| if (!gst_tag_list_get_uint (list, tag, &value)) |
| break; |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u", |
| GST_FOURCC_ARGS (fourcc), value); |
| atom_udta_add_uint_tag (udta, fourcc, 1, value); |
| } |
| break; |
| } |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| } |
| |
| static void |
| gst_qt_mux_add_mp4_date (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| GDate *date = NULL; |
| GDateYear year; |
| GDateMonth month; |
| GDateDay day; |
| gchar *str; |
| |
| g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE); |
| |
| if (!gst_tag_list_get_date (list, tag, &date) || !date) |
| return; |
| |
| year = g_date_get_year (date); |
| month = g_date_get_month (date); |
| day = g_date_get_day (date); |
| |
| g_date_free (date); |
| |
| if (year == G_DATE_BAD_YEAR && month == G_DATE_BAD_MONTH && |
| day == G_DATE_BAD_DAY) { |
| GST_WARNING_OBJECT (qtmux, "invalid date in tag"); |
| return; |
| } |
| |
| str = g_strdup_printf ("%u-%u-%u", year, month, day); |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s", |
| GST_FOURCC_ARGS (fourcc), str); |
| atom_udta_add_str_tag (udta, fourcc, str); |
| g_free (str); |
| } |
| |
| static void |
| gst_qt_mux_add_mp4_cover (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| GValue value = { 0, }; |
| GstBuffer *buf; |
| GstSample *sample; |
| GstCaps *caps; |
| GstStructure *structure; |
| gint flags = 0; |
| GstMapInfo map; |
| |
| g_return_if_fail (gst_tag_get_type (tag) == GST_TYPE_SAMPLE); |
| |
| if (!gst_tag_list_copy_value (&value, list, tag)) |
| return; |
| |
| sample = gst_value_get_sample (&value); |
| |
| if (!sample) |
| goto done; |
| |
| buf = gst_sample_get_buffer (sample); |
| if (!buf) |
| goto done; |
| |
| caps = gst_sample_get_caps (sample); |
| if (!caps) { |
| GST_WARNING_OBJECT (qtmux, "preview image without caps"); |
| goto done; |
| } |
| |
| GST_DEBUG_OBJECT (qtmux, "preview image caps %" GST_PTR_FORMAT, caps); |
| |
| structure = gst_caps_get_structure (caps, 0); |
| if (gst_structure_has_name (structure, "image/jpeg")) |
| flags = 13; |
| else if (gst_structure_has_name (structure, "image/png")) |
| flags = 14; |
| |
| if (!flags) { |
| GST_WARNING_OBJECT (qtmux, "preview image format not supported"); |
| goto done; |
| } |
| |
| gst_buffer_map (buf, &map, GST_MAP_READ); |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT |
| " -> image size %" G_GSIZE_FORMAT "", GST_FOURCC_ARGS (fourcc), map.size); |
| atom_udta_add_tag (udta, fourcc, flags, map.data, map.size); |
| gst_buffer_unmap (buf, &map); |
| done: |
| g_value_unset (&value); |
| } |
| |
| static void |
| gst_qt_mux_add_3gp_str (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| gchar *str = NULL; |
| guint number; |
| |
| g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_STRING); |
| g_return_if_fail (!tag2 || gst_tag_get_type (tag2) == G_TYPE_UINT); |
| |
| if (!gst_tag_list_get_string (list, tag, &str) || !str) |
| return; |
| |
| if (tag2) |
| if (!gst_tag_list_get_uint (list, tag2, &number)) |
| tag2 = NULL; |
| |
| if (!tag2) { |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s", |
| GST_FOURCC_ARGS (fourcc), str); |
| atom_udta_add_3gp_str_tag (udta, fourcc, str); |
| } else { |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s/%d", |
| GST_FOURCC_ARGS (fourcc), str, number); |
| atom_udta_add_3gp_str_int_tag (udta, fourcc, str, number); |
| } |
| |
| g_free (str); |
| } |
| |
| static void |
| gst_qt_mux_add_3gp_date (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| GDate *date = NULL; |
| GDateYear year; |
| |
| g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE); |
| |
| if (!gst_tag_list_get_date (list, tag, &date) || !date) |
| return; |
| |
| year = g_date_get_year (date); |
| g_date_free (date); |
| |
| if (year == G_DATE_BAD_YEAR) { |
| GST_WARNING_OBJECT (qtmux, "invalid date in tag"); |
| return; |
| } |
| |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %d", |
| GST_FOURCC_ARGS (fourcc), year); |
| atom_udta_add_3gp_uint_tag (udta, fourcc, year); |
| } |
| |
| static void |
| gst_qt_mux_add_3gp_location (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| gdouble latitude = -360, longitude = -360, altitude = 0; |
| gchar *location = NULL; |
| guint8 *data, *ddata; |
| gint size = 0, len = 0; |
| gboolean ret = FALSE; |
| |
| g_return_if_fail (strcmp (tag, GST_TAG_GEO_LOCATION_NAME) == 0); |
| |
| ret = gst_tag_list_get_string (list, tag, &location); |
| ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LONGITUDE, |
| &longitude); |
| ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LATITUDE, |
| &latitude); |
| ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_ELEVATION, |
| &altitude); |
| |
| if (!ret) |
| return; |
| |
| if (location) |
| len = strlen (location); |
| size += len + 1 + 2; |
| |
| /* role + (long, lat, alt) + body + notes */ |
| size += 1 + 3 * 4 + 1 + 1; |
| |
| data = ddata = g_malloc (size); |
| |
| /* language tag */ |
| GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE)); |
| /* location */ |
| if (location) |
| memcpy (data + 2, location, len); |
| GST_WRITE_UINT8 (data + 2 + len, 0); |
| data += len + 1 + 2; |
| /* role */ |
| GST_WRITE_UINT8 (data, 0); |
| /* long, lat, alt */ |
| #define QT_WRITE_SFP32(data, fp) GST_WRITE_UINT32_BE(data, (guint32) ((gint) (fp * 65536.0))) |
| QT_WRITE_SFP32 (data + 1, longitude); |
| QT_WRITE_SFP32 (data + 5, latitude); |
| QT_WRITE_SFP32 (data + 9, altitude); |
| /* neither astronomical body nor notes */ |
| GST_WRITE_UINT16_BE (data + 13, 0); |
| |
| GST_DEBUG_OBJECT (qtmux, "Adding tag 'loci'"); |
| atom_udta_add_3gp_tag (udta, fourcc, ddata, size); |
| g_free (ddata); |
| } |
| |
| static void |
| gst_qt_mux_add_3gp_keywords (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| gchar *keywords = NULL; |
| guint8 *data, *ddata; |
| gint size = 0, i; |
| gchar **kwds; |
| |
| g_return_if_fail (strcmp (tag, GST_TAG_KEYWORDS) == 0); |
| |
| if (!gst_tag_list_get_string (list, tag, &keywords) || !keywords) |
| return; |
| |
| kwds = g_strsplit (keywords, ",", 0); |
| g_free (keywords); |
| |
| size = 0; |
| for (i = 0; kwds[i]; i++) { |
| /* size byte + null-terminator */ |
| size += strlen (kwds[i]) + 1 + 1; |
| } |
| |
| /* language tag + count + keywords */ |
| size += 2 + 1; |
| |
| data = ddata = g_malloc (size); |
| |
| /* language tag */ |
| GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE)); |
| /* count */ |
| GST_WRITE_UINT8 (data + 2, i); |
| data += 3; |
| /* keywords */ |
| for (i = 0; kwds[i]; ++i) { |
| gint len = strlen (kwds[i]); |
| |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s", |
| GST_FOURCC_ARGS (fourcc), kwds[i]); |
| /* size */ |
| GST_WRITE_UINT8 (data, len + 1); |
| memcpy (data + 1, kwds[i], len + 1); |
| data += len + 2; |
| } |
| |
| g_strfreev (kwds); |
| |
| atom_udta_add_3gp_tag (udta, fourcc, ddata, size); |
| g_free (ddata); |
| } |
| |
| static gboolean |
| gst_qt_mux_parse_classification_string (GstQTMux * qtmux, const gchar * input, |
| guint32 * p_fourcc, guint16 * p_table, gchar ** p_content) |
| { |
| guint32 fourcc; |
| gint table; |
| gint size; |
| const gchar *data; |
| |
| data = input; |
| size = strlen (input); |
| |
| if (size < 4 + 3 + 1 + 1 + 1) { |
| /* at least the minimum xxxx://y/z */ |
| GST_WARNING_OBJECT (qtmux, "Classification tag input (%s) too short, " |
| "ignoring", input); |
| return FALSE; |
| } |
| |
| /* read the fourcc */ |
| memcpy (&fourcc, data, 4); |
| size -= 4; |
| data += 4; |
| |
| if (strncmp (data, "://", 3) != 0) { |
| goto mismatch; |
| } |
| data += 3; |
| size -= 3; |
| |
| /* read the table number */ |
| if (sscanf (data, "%d", &table) != 1) { |
| goto mismatch; |
| } |
| if (table < 0) { |
| GST_WARNING_OBJECT (qtmux, "Invalid table number in classification tag (%d)" |
| ", table numbers should be positive, ignoring tag", table); |
| return FALSE; |
| } |
| |
| /* find the next / */ |
| while (size > 0 && data[0] != '/') { |
| data += 1; |
| size -= 1; |
| } |
| if (size == 0) { |
| goto mismatch; |
| } |
| g_assert (data[0] == '/'); |
| |
| /* skip the '/' */ |
| data += 1; |
| size -= 1; |
| if (size == 0) { |
| goto mismatch; |
| } |
| |
| /* read up the rest of the string */ |
| *p_content = g_strdup (data); |
| *p_table = (guint16) table; |
| *p_fourcc = fourcc; |
| return TRUE; |
| |
| mismatch: |
| { |
| GST_WARNING_OBJECT (qtmux, "Ignoring classification tag as " |
| "input (%s) didn't match the expected entitycode://table/content", |
| input); |
| return FALSE; |
| } |
| } |
| |
| static void |
| gst_qt_mux_add_3gp_classification (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc) |
| { |
| gchar *clsf_data = NULL; |
| gint size = 0; |
| guint32 entity = 0; |
| guint16 table = 0; |
| gchar *content = NULL; |
| guint8 *data; |
| |
| g_return_if_fail (strcmp (tag, GST_TAG_3GP_CLASSIFICATION) == 0); |
| |
| if (!gst_tag_list_get_string (list, tag, &clsf_data) || !clsf_data) |
| return; |
| |
| GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s", |
| GST_FOURCC_ARGS (fourcc), clsf_data); |
| |
| /* parse the string, format is: |
| * entityfourcc://table/content |
| */ |
| gst_qt_mux_parse_classification_string (qtmux, clsf_data, &entity, &table, |
| &content); |
| g_free (clsf_data); |
| /* +1 for the \0 */ |
| size = strlen (content) + 1; |
| |
| /* now we have everything, build the atom |
| * atom description is at 3GPP TS 26.244 V8.2.0 (2009-09) */ |
| data = g_malloc (4 + 2 + 2 + size); |
| GST_WRITE_UINT32_LE (data, entity); |
| GST_WRITE_UINT16_BE (data + 4, (guint16) table); |
| GST_WRITE_UINT16_BE (data + 6, 0); |
| memcpy (data + 8, content, size); |
| g_free (content); |
| |
| atom_udta_add_3gp_tag (udta, fourcc, data, 4 + 2 + 2 + size); |
| g_free (data); |
| } |
| |
| typedef void (*GstQTMuxAddUdtaTagFunc) (GstQTMux * mux, |
| const GstTagList * list, AtomUDTA * udta, const char *tag, |
| const char *tag2, guint32 fourcc); |
| |
| /* |
| * Struct to record mappings from gstreamer tags to fourcc codes |
| */ |
| typedef struct _GstTagToFourcc |
| { |
| guint32 fourcc; |
| const gchar *gsttag; |
| const gchar *gsttag2; |
| const GstQTMuxAddUdtaTagFunc func; |
| } GstTagToFourcc; |
| |
| /* tag list tags to fourcc matching */ |
| static const GstTagToFourcc tag_matches_mp4[] = { |
| {FOURCC__alb, GST_TAG_ALBUM, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_soal, GST_TAG_ALBUM_SORTNAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__ART, GST_TAG_ARTIST, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_soar, GST_TAG_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_aART, GST_TAG_ALBUM_ARTIST, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_soaa, GST_TAG_ALBUM_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__swr, GST_TAG_APPLICATION_NAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__cmt, GST_TAG_COMMENT, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__wrt, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_soco, GST_TAG_COMPOSER_SORTNAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_tvsh, GST_TAG_SHOW_NAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_sosn, GST_TAG_SHOW_SORTNAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_tvsn, GST_TAG_SHOW_SEASON_NUMBER, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_tves, GST_TAG_SHOW_EPISODE_NUMBER, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__gen, GST_TAG_GENRE, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__nam, GST_TAG_TITLE, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_sonm, GST_TAG_TITLE_SORTNAME, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_perf, GST_TAG_PERFORMER, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__grp, GST_TAG_GROUPING, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__des, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__lyr, GST_TAG_LYRICS, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__too, GST_TAG_ENCODER, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_keyw, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC__day, GST_TAG_DATE, NULL, gst_qt_mux_add_mp4_date}, |
| {FOURCC_tmpo, GST_TAG_BEATS_PER_MINUTE, NULL, gst_qt_mux_add_mp4_tag}, |
| {FOURCC_trkn, GST_TAG_TRACK_NUMBER, GST_TAG_TRACK_COUNT, |
| gst_qt_mux_add_mp4_tag}, |
| {FOURCC_disk, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT, |
| gst_qt_mux_add_mp4_tag}, |
| {FOURCC_covr, GST_TAG_PREVIEW_IMAGE, NULL, gst_qt_mux_add_mp4_cover}, |
| {FOURCC_covr, GST_TAG_IMAGE, NULL, gst_qt_mux_add_mp4_cover}, |
| {0, NULL,} |
| }; |
| |
| static const GstTagToFourcc tag_matches_3gp[] = { |
| {FOURCC_titl, GST_TAG_TITLE, NULL, gst_qt_mux_add_3gp_str}, |
| {FOURCC_dscp, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_3gp_str}, |
| {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_3gp_str}, |
| {FOURCC_perf, GST_TAG_ARTIST, NULL, gst_qt_mux_add_3gp_str}, |
| {FOURCC_auth, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_3gp_str}, |
| {FOURCC_gnre, GST_TAG_GENRE, NULL, gst_qt_mux_add_3gp_str}, |
| {FOURCC_kywd, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_3gp_keywords}, |
| {FOURCC_yrrc, GST_TAG_DATE, NULL, gst_qt_mux_add_3gp_date}, |
| {FOURCC_albm, GST_TAG_ALBUM, GST_TAG_TRACK_NUMBER, gst_qt_mux_add_3gp_str}, |
| {FOURCC_loci, GST_TAG_GEO_LOCATION_NAME, NULL, gst_qt_mux_add_3gp_location}, |
| {FOURCC_clsf, GST_TAG_3GP_CLASSIFICATION, NULL, |
| gst_qt_mux_add_3gp_classification}, |
| {0, NULL,} |
| }; |
| |
| /* qtdemux produces these for atoms it cannot parse */ |
| #define GST_QT_DEMUX_PRIVATE_TAG "private-qt-tag" |
| |
| static void |
| gst_qt_mux_add_xmp_tags (GstQTMux * qtmux, const GstTagList * list) |
| { |
| GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux)); |
| GstBuffer *xmp = NULL; |
| |
| /* adobe specs only have 'quicktime' and 'mp4', |
| * but I guess we can extrapolate to gpp. |
| * Keep mj2 out for now as we don't add any tags for it yet. |
| * If you have further info about xmp on these formats, please share */ |
| if (qtmux_klass->format == GST_QT_MUX_FORMAT_MJ2) |
| return; |
| |
| GST_DEBUG_OBJECT (qtmux, "Adding xmp tags"); |
| |
| if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT) { |
| xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux), |
| list, TRUE); |
| if (xmp) |
| atom_udta_add_xmp_tags (&qtmux->moov->udta, xmp); |
| } else { |
| AtomInfo *ainfo; |
| /* for isom/mp4, it is a top level uuid atom */ |
| xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux), |
| list, TRUE); |
| if (xmp) { |
| ainfo = build_uuid_xmp_atom (xmp); |
| if (ainfo) { |
| qtmux->extra_atoms = g_slist_prepend (qtmux->extra_atoms, ainfo); |
| } |
| } |
| } |
| if (xmp) |
| gst_buffer_unref (xmp); |
| } |
| |
| static void |
| gst_qt_mux_add_metadata_tags (GstQTMux * qtmux, const GstTagList * list, |
| AtomUDTA * udta) |
| { |
| GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux)); |
| guint32 fourcc; |
| gint i; |
| const gchar *tag, *tag2; |
| const GstTagToFourcc *tag_matches; |
| |
| switch (qtmux_klass->format) { |
| case GST_QT_MUX_FORMAT_3GP: |
| tag_matches = tag_matches_3gp; |
| break; |
| case GST_QT_MUX_FORMAT_MJ2: |
| tag_matches = NULL; |
| break; |
| default: |
| /* sort of iTunes style for mp4 and QT (?) */ |
| tag_matches = tag_matches_mp4; |
| break; |
| } |
| |
| if (!tag_matches) |
| return; |
| |
| /* Clear existing tags so we don't add them over and over */ |
| atom_udta_clear_tags (udta); |
| |
| for (i = 0; tag_matches[i].fourcc; i++) { |
| fourcc = tag_matches[i].fourcc; |
| tag = tag_matches[i].gsttag; |
| tag2 = tag_matches[i].gsttag2; |
| |
| g_assert (tag_matches[i].func); |
| tag_matches[i].func (qtmux, list, udta, tag, tag2, fourcc); |
| } |
| |
| /* add unparsed blobs if present */ |
| if (gst_tag_exists (GST_QT_DEMUX_PRIVATE_TAG)) { |
| guint num_tags; |
| |
| num_tags = gst_tag_list_get_tag_size (list, GST_QT_DEMUX_PRIVATE_TAG); |
| for (i = 0; i < num_tags; ++i) { |
| GstSample *sample = NULL; |
| GstBuffer *buf; |
| const GstStructure *s; |
| |
| if (!gst_tag_list_get_sample_index (list, GST_QT_DEMUX_PRIVATE_TAG, i, |
| &sample)) |
| continue; |
| buf = gst_sample_get_buffer (sample); |
| |
| if (buf && (s = gst_sample_get_info (sample))) { |
| const gchar *style = NULL; |
| GstMapInfo map; |
| |
| gst_buffer_map (buf, &map, GST_MAP_READ); |
| GST_DEBUG_OBJECT (qtmux, |
| "Found private tag %d/%d; size %" G_GSIZE_FORMAT ", info %" |
| GST_PTR_FORMAT, i, num_tags, map.size, s); |
| if (s && (style = gst_structure_get_string (s, "style"))) { |
| /* try to prevent some style tag ending up into another variant |
| * (todo: make into a list if more cases) */ |
| if ((strcmp (style, "itunes") == 0 && |
| qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) || |
| (strcmp (style, "iso") == 0 && |
| qtmux_klass->format == GST_QT_MUX_FORMAT_3GP)) { |
| GST_DEBUG_OBJECT (qtmux, "Adding private tag"); |
| atom_udta_add_blob_tag (udta, map.data, map.size); |
| } |
| } |
| gst_buffer_unmap (buf, &map); |
| } |
| gst_sample_unref (sample); |
| } |
| } |
| |
| return; |
| } |
| |
| /* |
| * Gets the tagsetter iface taglist and puts the known tags |
| * into the output stream |
| */ |
| static void |
| gst_qt_mux_setup_metadata (GstQTMux * qtmux) |
| { |
| const GstTagList *tags = NULL; |
| GSList *walk; |
| |
| GST_OBJECT_LOCK (qtmux); |
| if (qtmux->tags_changed) { |
| tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (qtmux)); |
| qtmux->tags_changed = FALSE; |
| } |
| GST_OBJECT_UNLOCK (qtmux); |
| |
| GST_LOG_OBJECT (qtmux, "tags: %" GST_PTR_FORMAT, tags); |
| |
| if (tags && !gst_tag_list_is_empty (tags)) { |
| GstTagList *copy = gst_tag_list_copy (tags); |
| |
| GST_DEBUG_OBJECT (qtmux, "Removing bogus tags"); |
| gst_tag_list_remove_tag (copy, GST_TAG_VIDEO_CODEC); |
| gst_tag_list_remove_tag (copy, GST_TAG_AUDIO_CODEC); |
| gst_tag_list_remove_tag (copy, GST_TAG_CONTAINER_FORMAT); |
| |
| GST_DEBUG_OBJECT (qtmux, "Formatting tags"); |
| gst_qt_mux_add_metadata_tags (qtmux, copy, &qtmux->moov->udta); |
| gst_qt_mux_add_xmp_tags (qtmux, copy); |
| gst_tag_list_unref (copy); |
| } else { |
| GST_DEBUG_OBJECT (qtmux, "No new tags received"); |
| } |
| |
| for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *qpad = (GstQTPad *) cdata; |
| GstPad *pad = qpad->collect.pad; |
| |
| if (qpad->tags_changed && qpad->tags) { |
| GST_DEBUG_OBJECT (pad, "Adding tags"); |
| gst_tag_list_remove_tag (qpad->tags, GST_TAG_CONTAINER_FORMAT); |
| gst_qt_mux_add_metadata_tags (qtmux, qpad->tags, &qpad->trak->udta); |
| qpad->tags_changed = FALSE; |
| GST_DEBUG_OBJECT (pad, "Tags added"); |
| } else { |
| GST_DEBUG_OBJECT (pad, "No new tags received"); |
| } |
| } |
| } |
| |
| static inline GstBuffer * |
| _gst_buffer_new_take_data (guint8 * data, guint size) |
| { |
| GstBuffer *buf; |
| |
| buf = gst_buffer_new (); |
| gst_buffer_append_memory (buf, |
| gst_memory_new_wrapped (0, data, size, 0, size, data, g_free)); |
| |
| return buf; |
| } |
| |
| static GstFlowReturn |
| gst_qt_mux_send_buffer (GstQTMux * qtmux, GstBuffer * buf, guint64 * offset, |
| gboolean mind_fast) |
| { |
| GstFlowReturn res; |
| gsize size; |
| |
| g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR); |
| |
| size = gst_buffer_get_size (buf); |
| GST_LOG_OBJECT (qtmux, "sending buffer size %" G_GSIZE_FORMAT, size); |
| |
| if (mind_fast && qtmux->fast_start_file) { |
| GstMapInfo map; |
| gint ret; |
| |
| GST_LOG_OBJECT (qtmux, "to temporary file"); |
| gst_buffer_map (buf, &map, GST_MAP_READ); |
| ret = fwrite (map.data, sizeof (guint8), map.size, qtmux->fast_start_file); |
| gst_buffer_unmap (buf, &map); |
| gst_buffer_unref (buf); |
| if (ret != size) |
| goto write_error; |
| else |
| res = GST_FLOW_OK; |
| } else { |
| GST_LOG_OBJECT (qtmux, "downstream"); |
| res = gst_pad_push (qtmux->srcpad, buf); |
| } |
| |
| if (G_LIKELY (offset)) |
| *offset += size; |
| |
| return res; |
| |
| /* ERRORS */ |
| write_error: |
| { |
| GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE, |
| ("Failed to write to temporary file"), GST_ERROR_SYSTEM); |
| return GST_FLOW_ERROR; |
| } |
| } |
| |
| static gboolean |
| gst_qt_mux_seek_to_beginning (FILE * f) |
| { |
| #ifdef HAVE_FSEEKO |
| if (fseeko (f, (off_t) 0, SEEK_SET) != 0) |
| return FALSE; |
| #elif defined (G_OS_UNIX) || defined (G_OS_WIN32) |
| if (lseek (fileno (f), (off_t) 0, SEEK_SET) == (off_t) - 1) |
| return FALSE; |
| #else |
| if (fseek (f, (long) 0, SEEK_SET) != 0) |
| return FALSE; |
| #endif |
| return TRUE; |
| } |
| |
| static GstFlowReturn |
| gst_qt_mux_send_buffered_data (GstQTMux * qtmux, guint64 * offset) |
| { |
| GstFlowReturn ret = GST_FLOW_OK; |
| GstBuffer *buf = NULL; |
| |
| if (fflush (qtmux->fast_start_file)) |
| goto flush_failed; |
| |
| if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file)) |
| goto seek_failed; |
| |
| /* hm, this could all take a really really long time, |
| * but there may not be another way to get moov atom first |
| * (somehow optimize copy?) */ |
| GST_DEBUG_OBJECT (qtmux, "Sending buffered data"); |
| while (ret == GST_FLOW_OK) { |
| const int bufsize = 4096; |
| GstMapInfo map; |
| gsize size; |
| |
| buf = gst_buffer_new_and_alloc (bufsize); |
| gst_buffer_map (buf, &map, GST_MAP_WRITE); |
| size = fread (map.data, sizeof (guint8), bufsize, qtmux->fast_start_file); |
| if (size == 0) { |
| gst_buffer_unmap (buf, &map); |
| break; |
| } |
| GST_LOG_OBJECT (qtmux, "Pushing buffered buffer of size %d", (gint) size); |
| gst_buffer_unmap (buf, &map); |
| if (size != bufsize) |
| gst_buffer_set_size (buf, size); |
| ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE); |
| buf = NULL; |
| } |
| if (buf) |
| gst_buffer_unref (buf); |
| |
| if (ftruncate (fileno (qtmux->fast_start_file), 0)) |
| goto seek_failed; |
| if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file)) |
| goto seek_failed; |
| |
| return ret; |
| |
| /* ERRORS */ |
| flush_failed: |
| { |
| GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE, |
| ("Failed to flush temporary file"), GST_ERROR_SYSTEM); |
| ret = GST_FLOW_ERROR; |
| goto fail; |
| } |
| seek_failed: |
| { |
| GST_ELEMENT_ERROR (qtmux, RESOURCE, SEEK, |
| ("Failed to seek temporary file"), GST_ERROR_SYSTEM); |
| ret = GST_FLOW_ERROR; |
| goto fail; |
| } |
| fail: |
| { |
| /* clear descriptor so we don't remove temp file later on, |
| * might be possible to recover */ |
| fclose (qtmux->fast_start_file); |
| qtmux->fast_start_file = NULL; |
| return ret; |
| } |
| } |
| |
| /* |
| * Sends the initial mdat atom fields (size fields and fourcc type), |
| * the subsequent buffers are considered part of it's data. |
| * As we can't predict the amount of data that we are going to place in mdat |
| * we need to record the position of the size field in the stream so we can |
| * seek back to it later and update when the streams have finished. |
| */ |
| static GstFlowReturn |
| gst_qt_mux_send_mdat_header (GstQTMux * qtmux, guint64 * off, guint64 size, |
| gboolean extended, gboolean fsync_after) |
| { |
| GstBuffer *buf; |
| GstMapInfo map; |
| |
| GST_DEBUG_OBJECT (qtmux, "Sending mdat's atom header, " |
| "size %" G_GUINT64_FORMAT, size); |
| |
| /* if the qtmux state is EOS, really write the mdat, otherwise |
| * allow size == 0 for a placeholder atom */ |
| if (qtmux->state == GST_QT_MUX_STATE_EOS || size > 0) |
| size += 8; |
| |
| if (extended) { |
| gboolean large_file = (size > MDAT_LARGE_FILE_LIMIT); |
| /* Always write 16-bytes, but put a free atom first |
| * if the size is < 4GB. */ |
| buf = gst_buffer_new_and_alloc (16); |
| gst_buffer_map (buf, &map, GST_MAP_WRITE); |
| |
| if (large_file) { |
| /* Write extended mdat header and large_size field */ |
| GST_WRITE_UINT32_BE (map.data, 1); |
| GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat); |
| GST_WRITE_UINT64_BE (map.data + 8, size + 8); |
| } else { |
| /* Write an empty free atom, then standard 32-bit mdat */ |
| GST_WRITE_UINT32_BE (map.data, 8); |
| GST_WRITE_UINT32_LE (map.data + 4, FOURCC_free); |
| GST_WRITE_UINT32_BE (map.data + 8, size); |
| GST_WRITE_UINT32_LE (map.data + 12, FOURCC_mdat); |
| } |
| gst_buffer_unmap (buf, &map); |
| } else { |
| buf = gst_buffer_new_and_alloc (8); |
| gst_buffer_map (buf, &map, GST_MAP_WRITE); |
| |
| /* Vanilla 32-bit mdat */ |
| GST_WRITE_UINT32_BE (map.data, size); |
| GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat); |
| gst_buffer_unmap (buf, &map); |
| } |
| |
| GST_LOG_OBJECT (qtmux, "Pushing mdat header"); |
| if (fsync_after) |
| GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER); |
| |
| return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE); |
| |
| } |
| |
| /* |
| * We get the position of the mdat size field, seek back to it |
| * and overwrite with the real value |
| */ |
| static GstFlowReturn |
| gst_qt_mux_update_mdat_size (GstQTMux * qtmux, guint64 mdat_pos, |
| guint64 mdat_size, guint64 * offset, gboolean fsync_after) |
| { |
| GstSegment segment; |
| |
| /* We must have recorded the mdat position for this to work */ |
| g_assert (mdat_pos != 0); |
| |
| /* seek and rewrite the header */ |
| gst_segment_init (&segment, GST_FORMAT_BYTES); |
| segment.start = mdat_pos; |
| gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment)); |
| |
| return gst_qt_mux_send_mdat_header (qtmux, offset, mdat_size, TRUE, |
| fsync_after); |
| } |
| |
| static GstFlowReturn |
| gst_qt_mux_send_ftyp (GstQTMux * qtmux, guint64 * off) |
| { |
| GstBuffer *buf; |
| guint64 size = 0, offset = 0; |
| guint8 *data = NULL; |
| |
| GST_DEBUG_OBJECT (qtmux, "Sending ftyp atom"); |
| |
| if (!atom_ftyp_copy_data (qtmux->ftyp, &data, &size, &offset)) |
| goto serialize_error; |
| |
| buf = _gst_buffer_new_take_data (data, offset); |
| |
| GST_LOG_OBJECT (qtmux, "Pushing ftyp"); |
| return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE); |
| |
| /* ERRORS */ |
| serialize_error: |
| { |
| GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), |
| ("Failed to serialize ftyp")); |
| return GST_FLOW_ERROR; |
| } |
| } |
| |
| static void |
| gst_qt_mux_prepare_ftyp (GstQTMux * qtmux, AtomFTYP ** p_ftyp, |
| GstBuffer ** p_prefix) |
| { |
| GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux)); |
| guint32 major, version; |
| GList *comp; |
| GstBuffer *prefix = NULL; |
| AtomFTYP *ftyp = NULL; |
| |
| GST_DEBUG_OBJECT (qtmux, "Preparing ftyp and possible prefix atom"); |
| |
| /* init and send context and ftyp based on current property state */ |
| gst_qt_mux_map_format_to_header (qtmux_klass->format, &prefix, &major, |
| &version, &comp, qtmux->moov, qtmux->longest_chunk, |
| qtmux->fast_start_file != NULL); |
| ftyp = atom_ftyp_new (qtmux->context, major, version, comp); |
| if (comp) |
| g_list_free (comp); |
| if (prefix) { |
| if (p_prefix) |
| *p_prefix = prefix; |
| else |
| gst_buffer_unref (prefix); |
| } |
| *p_ftyp = ftyp; |
| } |
| |
| static GstFlowReturn |
| gst_qt_mux_prepare_and_send_ftyp (GstQTMux * qtmux) |
| { |
| GstFlowReturn ret = GST_FLOW_OK; |
| GstBuffer *prefix = NULL; |
| |
| GST_DEBUG_OBJECT (qtmux, "Preparing to send ftyp atom"); |
| |
| /* init and send context and ftyp based on current property state */ |
| if (qtmux->ftyp) { |
| atom_ftyp_free (qtmux->ftyp); |
| qtmux->ftyp = NULL; |
| } |
| gst_qt_mux_prepare_ftyp (qtmux, &qtmux->ftyp, &prefix); |
| if (prefix) { |
| ret = gst_qt_mux_send_buffer (qtmux, prefix, &qtmux->header_size, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| } |
| return gst_qt_mux_send_ftyp (qtmux, &qtmux->header_size); |
| } |
| |
| static void |
| gst_qt_mux_set_header_on_caps (GstQTMux * mux, GstBuffer * buf) |
| { |
| GstStructure *structure; |
| GValue array = { 0 }; |
| GValue value = { 0 }; |
| GstCaps *caps, *tcaps; |
| |
| tcaps = gst_pad_get_current_caps (mux->srcpad); |
| caps = gst_caps_copy (tcaps); |
| gst_caps_unref (tcaps); |
| |
| structure = gst_caps_get_structure (caps, 0); |
| |
| g_value_init (&array, GST_TYPE_ARRAY); |
| |
| GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER); |
| g_value_init (&value, GST_TYPE_BUFFER); |
| gst_value_take_buffer (&value, gst_buffer_ref (buf)); |
| gst_value_array_append_value (&array, &value); |
| g_value_unset (&value); |
| |
| gst_structure_set_value (structure, "streamheader", &array); |
| g_value_unset (&array); |
| gst_pad_set_caps (mux->srcpad, caps); |
| gst_caps_unref (caps); |
| } |
| |
| /* |
| * Write out a free space atom. The offset is adjusted by the full |
| * size, but a smaller buffer is sent |
| */ |
| static GstFlowReturn |
| gst_qt_mux_send_free_atom (GstQTMux * qtmux, guint64 * off, guint32 size, |
| gboolean fsync_after) |
| { |
| Atom *node_header; |
| GstBuffer *buf; |
| guint8 *data = NULL; |
| guint64 offset = 0, bsize = 0; |
| GstFlowReturn ret; |
| |
| GST_DEBUG_OBJECT (qtmux, "Sending free atom header of size %u", size); |
| |
| /* We can't make a free space atom smaller than the header */ |
| if (size < 8) |
| goto too_small; |
| |
| node_header = g_malloc0 (sizeof (Atom)); |
| node_header->type = FOURCC_free; |
| node_header->size = size; |
| |
| bsize = offset = 0; |
| if (atom_copy_data (node_header, &data, &bsize, &offset) == 0) |
| goto serialize_error; |
| |
| buf = _gst_buffer_new_take_data (data, offset); |
| g_free (node_header); |
| |
| if (fsync_after) |
| GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER); |
| |
| GST_LOG_OBJECT (qtmux, "Pushing free atom"); |
| ret = gst_qt_mux_send_buffer (qtmux, buf, off, FALSE); |
| |
| if (off) { |
| GstSegment segment; |
| |
| *off += size - 8; |
| |
| /* Make sure downstream position ends up at the end of this free box */ |
| gst_segment_init (&segment, GST_FORMAT_BYTES); |
| segment.start = *off; |
| gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment)); |
| } |
| |
| return ret; |
| |
| /* ERRORS */ |
| too_small: |
| { |
| GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), |
| ("Not enough free reserved space")); |
| return GST_FLOW_ERROR; |
| } |
| serialize_error: |
| { |
| GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), |
| ("Failed to serialize mdat")); |
| g_free (node_header); |
| return GST_FLOW_ERROR; |
| } |
| } |
| |
| static void |
| gst_qt_mux_configure_moov (GstQTMux * qtmux) |
| { |
| gboolean fragmented = FALSE; |
| guint32 timescale; |
| |
| GST_OBJECT_LOCK (qtmux); |
| timescale = qtmux->timescale; |
| if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED || |
| qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) |
| fragmented = TRUE; |
| GST_OBJECT_UNLOCK (qtmux); |
| |
| /* inform lower layers of our property wishes, and determine duration. |
| * Let moov take care of this using its list of traks; |
| * so that released pads are also included */ |
| GST_DEBUG_OBJECT (qtmux, "Updating timescale to %" G_GUINT32_FORMAT, |
| timescale); |
| atom_moov_update_timescale (qtmux->moov, timescale); |
| atom_moov_set_fragmented (qtmux->moov, fragmented); |
| |
| atom_moov_update_duration (qtmux->moov); |
| } |
| |
| static GstFlowReturn |
| gst_qt_mux_send_moov (GstQTMux * qtmux, guint64 * _offset, |
| guint64 padded_moov_size, gboolean mind_fast, gboolean fsync_after) |
| { |
| guint64 offset = 0, size = 0; |
| guint8 *data; |
| GstBuffer *buf; |
| GstFlowReturn ret = GST_FLOW_OK; |
| GSList *walk; |
| guint64 current_time = atoms_get_current_qt_time (); |
| |
| /* update modification times */ |
| qtmux->moov->mvhd.time_info.modification_time = current_time; |
| for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *qtpad = (GstQTPad *) cdata; |
| |
| qtpad->trak->mdia.mdhd.time_info.modification_time = current_time; |
| qtpad->trak->tkhd.modification_time = current_time; |
| } |
| |
| /* serialize moov */ |
| offset = size = 0; |
| data = NULL; |
| GST_LOG_OBJECT (qtmux, "Copying movie header into buffer"); |
| if (!atom_moov_copy_data (qtmux->moov, &data, &size, &offset)) |
| goto serialize_error; |
| qtmux->last_moov_size = offset; |
| |
| /* Check we have enough reserved space for this and a Free atom */ |
| if (padded_moov_size > 0 && offset + 8 > padded_moov_size) |
| goto too_small_reserved; |
| buf = _gst_buffer_new_take_data (data, offset); |
| GST_DEBUG_OBJECT (qtmux, "Pushing moov atoms"); |
| |
| /* If at EOS, this is the final moov, put in the streamheader |
| * (apparently used by a flumotion util) */ |
| if (qtmux->state == GST_QT_MUX_STATE_EOS) |
| gst_qt_mux_set_header_on_caps (qtmux, buf); |
| |
| if (fsync_after) |
| GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER); |
| ret = gst_qt_mux_send_buffer (qtmux, buf, _offset, mind_fast); |
| |
| /* Write out a free atom if needed */ |
| if (ret == GST_FLOW_OK && offset < padded_moov_size) { |
| GST_LOG_OBJECT (qtmux, "Writing out free atom of size %u", |
| (guint32) (padded_moov_size - offset)); |
| ret = |
| gst_qt_mux_send_free_atom (qtmux, _offset, padded_moov_size - offset, |
| fsync_after); |
| } |
| |
| return ret; |
| too_small_reserved: |
| { |
| GST_ELEMENT_ERROR (qtmux, STREAM, MUX, |
| ("Not enough free reserved header space"), |
| ("Needed %" G_GUINT64_FORMAT " bytes, reserved %" G_GUINT64_FORMAT, |
| offset, padded_moov_size)); |
| return GST_FLOW_ERROR; |
| } |
| serialize_error: |
| { |
| g_free (data); |
| return GST_FLOW_ERROR; |
| } |
| } |
| |
| /* either calculates size of extra atoms or pushes them */ |
| static GstFlowReturn |
| gst_qt_mux_send_extra_atoms (GstQTMux * qtmux, gboolean send, guint64 * offset, |
| gboolean mind_fast) |
| { |
| GSList *walk; |
| guint64 loffset = 0, size = 0; |
| guint8 *data; |
| GstFlowReturn ret = GST_FLOW_OK; |
| |
| for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) { |
| AtomInfo *ainfo = (AtomInfo *) walk->data; |
| |
| loffset = size = 0; |
| data = NULL; |
| if (!ainfo->copy_data_func (ainfo->atom, |
| send ? &data : NULL, &size, &loffset)) |
| goto serialize_error; |
| |
| if (send) { |
| GstBuffer *buf; |
| |
| GST_DEBUG_OBJECT (qtmux, |
| "Pushing extra top-level atom %" GST_FOURCC_FORMAT, |
| GST_FOURCC_ARGS (ainfo->atom->type)); |
| buf = _gst_buffer_new_take_data (data, loffset); |
| ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE); |
| if (ret != GST_FLOW_OK) |
| break; |
| } else { |
| if (offset) |
| *offset += loffset; |
| } |
| } |
| |
| return ret; |
| |
| serialize_error: |
| { |
| g_free (data); |
| return GST_FLOW_ERROR; |
| } |
| } |
| |
| static gboolean |
| gst_qt_mux_downstream_is_seekable (GstQTMux * qtmux) |
| { |
| gboolean seekable = FALSE; |
| GstQuery *query = gst_query_new_seeking (GST_FORMAT_BYTES); |
| |
| if (gst_pad_peer_query (qtmux->srcpad, query)) { |
| gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL); |
| GST_INFO_OBJECT (qtmux, "downstream is %sseekable", seekable ? "" : "not "); |
| } else { |
| /* have to assume seeking is not supported if query not handled downstream */ |
| GST_WARNING_OBJECT (qtmux, "downstream did not handle seeking query"); |
| seekable = FALSE; |
| } |
| gst_query_unref (query); |
| |
| return seekable; |
| } |
| |
| static void |
| gst_qt_mux_prepare_moov_recovery (GstQTMux * qtmux) |
| { |
| GSList *walk; |
| gboolean fail = FALSE; |
| AtomFTYP *ftyp = NULL; |
| GstBuffer *prefix = NULL; |
| |
| GST_DEBUG_OBJECT (qtmux, "Opening moov recovery file: %s", |
| qtmux->moov_recov_file_path); |
| |
| qtmux->moov_recov_file = g_fopen (qtmux->moov_recov_file_path, "wb+"); |
| if (qtmux->moov_recov_file == NULL) { |
| GST_WARNING_OBJECT (qtmux, "Failed to open moov recovery file in %s", |
| qtmux->moov_recov_file_path); |
| return; |
| } |
| |
| gst_qt_mux_prepare_ftyp (qtmux, &ftyp, &prefix); |
| |
| if (!atoms_recov_write_headers (qtmux->moov_recov_file, ftyp, prefix, |
| qtmux->moov, qtmux->timescale, g_slist_length (qtmux->sinkpads))) { |
| GST_WARNING_OBJECT (qtmux, "Failed to write moov recovery file " "headers"); |
| goto fail; |
| } |
| |
| atom_ftyp_free (ftyp); |
| if (prefix) |
| gst_buffer_unref (prefix); |
| |
| for (walk = qtmux->sinkpads; walk && !fail; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *qpad = (GstQTPad *) cdata; |
| /* write info for each stream */ |
| fail = atoms_recov_write_trak_info (qtmux->moov_recov_file, qpad->trak); |
| if (fail) { |
| GST_WARNING_OBJECT (qtmux, "Failed to write trak info to recovery " |
| "file"); |
| break; |
| } |
| } |
| |
| return; |
| |
| fail: |
| /* cleanup */ |
| fclose (qtmux->moov_recov_file); |
| qtmux->moov_recov_file = NULL; |
| } |
| |
| static guint64 |
| prefill_get_block_index (GstQTMux * qtmux, GstQTPad * qpad) |
| { |
| switch (qpad->fourcc) { |
| case FOURCC_apch: |
| case FOURCC_apcn: |
| case FOURCC_apcs: |
| case FOURCC_apco: |
| case FOURCC_ap4h: |
| case FOURCC_ap4x: |
| return qpad->sample_offset; |
| case FOURCC_sowt: |
| case FOURCC_twos: |
| return gst_util_uint64_scale_ceil (qpad->sample_offset, |
| qpad->expected_sample_duration_n, |
| qpad->expected_sample_duration_d * |
| atom_trak_get_timescale (qpad->trak)); |
| default: |
| return -1; |
| } |
| } |
| |
| static guint |
| prefill_get_sample_size (GstQTMux * qtmux, GstQTPad * qpad) |
| { |
| switch (qpad->fourcc) { |
| case FOURCC_apch: |
| if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 480) { |
| return 300000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 576) { |
| return 350000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 720) { |
| return 525000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 1080) { |
| return 1050000; |
| } else { |
| return 4150000; |
| } |
| break; |
| case FOURCC_apcn: |
| if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 480) { |
| return 200000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 576) { |
| return 250000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 720) { |
| return 350000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 1080) { |
| return 700000; |
| } else { |
| return 2800000; |
| } |
| break; |
| case FOURCC_apcs: |
| if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 480) { |
| return 150000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 576) { |
| return 200000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 720) { |
| return 250000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 1080) { |
| return 500000; |
| } else { |
| return 2800000; |
| } |
| break; |
| case FOURCC_apco: |
| if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 480) { |
| return 80000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 576) { |
| return 100000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 720) { |
| return 150000; |
| } else if (((SampleTableEntryMP4V *) qpad->trak_ste)->height <= 1080) { |
| return 250000; |
| } else { |
| return 900000; |
| } |
| break; |
| case FOURCC_sowt: |
| case FOURCC_twos:{ |
| guint64 block_idx; |
| guint64 next_sample_offset; |
| |
| block_idx = prefill_get_block_index (qtmux, qpad); |
| next_sample_offset = |
| gst_util_uint64_scale (block_idx + 1, |
| qpad->expected_sample_duration_d * |
| atom_trak_get_timescale (qpad->trak), |
| qpad->expected_sample_duration_n); |
| |
| return (next_sample_offset - qpad->sample_offset) * qpad->sample_size; |
| } |
| case FOURCC_ap4h: |
| case FOURCC_ap4x: |
| default: |
| GST_ERROR_OBJECT (qtmux, "unsupported codec for pre-filling"); |
| return -1; |
| } |
| |
| return -1; |
| } |
| |
| static GstClockTime |
| prefill_get_next_timestamp (GstQTMux * qtmux, GstQTPad * qpad) |
| { |
| switch (qpad->fourcc) { |
| case FOURCC_apch: |
| case FOURCC_apcn: |
| case FOURCC_apcs: |
| case FOURCC_apco: |
| case FOURCC_ap4h: |
| case FOURCC_ap4x: |
| return gst_util_uint64_scale (qpad->sample_offset + 1, |
| qpad->expected_sample_duration_d * GST_SECOND, |
| qpad->expected_sample_duration_n); |
| case FOURCC_sowt: |
| case FOURCC_twos:{ |
| guint64 block_idx; |
| guint64 next_sample_offset; |
| |
| block_idx = prefill_get_block_index (qtmux, qpad); |
| next_sample_offset = |
| gst_util_uint64_scale (block_idx + 1, |
| qpad->expected_sample_duration_d * |
| atom_trak_get_timescale (qpad->trak), |
| qpad->expected_sample_duration_n); |
| |
| return gst_util_uint64_scale (next_sample_offset, GST_SECOND, |
| atom_trak_get_timescale (qpad->trak)); |
| } |
| default: |
| GST_ERROR_OBJECT (qtmux, "unsupported codec for pre-filling"); |
| return -1; |
| } |
| |
| return -1; |
| } |
| |
| static GstBuffer * |
| prefill_raw_audio_prepare_buf_func (GstQTPad * qtpad, GstBuffer * buf, |
| GstQTMux * qtmux) |
| { |
| guint64 block_idx; |
| guint64 nsamples; |
| GstClockTime input_timestamp; |
| guint64 input_timestamp_distance; |
| |
| if (buf) |
| gst_adapter_push (qtpad->raw_audio_adapter, buf); |
| |
| block_idx = gst_util_uint64_scale_ceil (qtpad->raw_audio_adapter_offset, |
| qtpad->expected_sample_duration_n, |
| qtpad->expected_sample_duration_d * |
| atom_trak_get_timescale (qtpad->trak)); |
| nsamples = |
| gst_util_uint64_scale (block_idx + 1, |
| qtpad->expected_sample_duration_d * atom_trak_get_timescale (qtpad->trak), |
| qtpad->expected_sample_duration_n) - qtpad->raw_audio_adapter_offset; |
| |
| if ((!GST_COLLECT_PADS_STATE_IS_SET (&qtpad->collect, |
| GST_COLLECT_PADS_STATE_EOS) |
| && gst_adapter_available (qtpad->raw_audio_adapter) < |
| nsamples * qtpad->sample_size) |
| || gst_adapter_available (qtpad->raw_audio_adapter) == 0) { |
| return NULL; |
| } |
| |
| input_timestamp = |
| gst_adapter_prev_pts (qtpad->raw_audio_adapter, |
| &input_timestamp_distance); |
| if (input_timestamp != GST_CLOCK_TIME_NONE) |
| input_timestamp += |
| gst_util_uint64_scale (input_timestamp_distance, GST_SECOND, |
| qtpad->sample_size * atom_trak_get_timescale (qtpad->trak)); |
| |
| buf = |
| gst_adapter_take_buffer (qtpad->raw_audio_adapter, |
| !GST_COLLECT_PADS_STATE_IS_SET (&qtpad->collect, |
| GST_COLLECT_PADS_STATE_EOS) ? nsamples * |
| qtpad->sample_size : gst_adapter_available (qtpad->raw_audio_adapter)); |
| GST_BUFFER_PTS (buf) = input_timestamp; |
| GST_BUFFER_DTS (buf) = GST_CLOCK_TIME_NONE; |
| GST_BUFFER_DURATION (buf) = GST_CLOCK_TIME_NONE; |
| |
| qtpad->raw_audio_adapter_offset += nsamples; |
| |
| /* Check if we have yet another block of raw audio in the adapter */ |
| nsamples = |
| gst_util_uint64_scale (block_idx + 2, |
| qtpad->expected_sample_duration_d * atom_trak_get_timescale (qtpad->trak), |
| qtpad->expected_sample_duration_n) - qtpad->raw_audio_adapter_offset; |
| if (gst_adapter_available (qtpad->raw_audio_adapter) >= |
| nsamples * qtpad->sample_size) { |
| input_timestamp = |
| gst_adapter_prev_pts (qtpad->raw_audio_adapter, |
| &input_timestamp_distance); |
| if (input_timestamp != GST_CLOCK_TIME_NONE) |
| input_timestamp += |
| gst_util_uint64_scale (input_timestamp_distance, GST_SECOND, |
| qtpad->sample_size * atom_trak_get_timescale (qtpad->trak)); |
| qtpad->raw_audio_adapter_pts = input_timestamp; |
| } else { |
| qtpad->raw_audio_adapter_pts = GST_CLOCK_TIME_NONE; |
| } |
| |
| return buf; |
| } |
| |
| static gboolean |
| prefill_update_sample_size (GstQTMux * qtmux, GstQTPad * qpad) |
| { |
| switch (qpad->fourcc) { |
| case FOURCC_apch: |
| case FOURCC_apcn: |
| case FOURCC_apcs: |
| case FOURCC_apco: |
| case FOURCC_ap4h: |
| case FOURCC_ap4x:{ |
| guint sample_size = prefill_get_sample_size (qtmux, qpad); |
| atom_trak_set_constant_size_samples (qpad->trak, sample_size); |
| return TRUE; |
| } |
| case FOURCC_sowt: |
| case FOURCC_twos:{ |
| GSList *walk; |
| |
| /* Find the (first) video track and assume that we have to output |
| * in that size */ |
| for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *tmp_qpad = (GstQTPad *) cdata; |
| |
| if (tmp_qpad->trak->is_video) { |
| qpad->expected_sample_duration_n = |
| tmp_qpad->expected_sample_duration_n; |
| qpad->expected_sample_duration_d = |
| tmp_qpad->expected_sample_duration_d; |
| break; |
| } |
| } |
| |
| if (walk == NULL) { |
| GST_INFO_OBJECT (qpad->collect.pad, |
| "Found no video framerate, using 40ms audio buffers"); |
| qpad->expected_sample_duration_n = 25; |
| qpad->expected_sample_duration_d = 1; |
| } |
| |
| /* Set a prepare_buf_func that ensures this */ |
| qpad->prepare_buf_func = prefill_raw_audio_prepare_buf_func; |
| qpad->raw_audio_adapter = gst_adapter_new (); |
| qpad->raw_audio_adapter_offset = 0; |
| qpad->raw_audio_adapter_pts = GST_CLOCK_TIME_NONE; |
| |
| return TRUE; |
| } |
| default: |
| return TRUE; |
| } |
| } |
| |
| /* Only called at startup when doing the "fake" iteration of all tracks in order |
| * to prefill the sample tables in the header. */ |
| static GstQTPad * |
| find_best_pad_prefill_start (GstQTMux * qtmux) |
| { |
| GSList *walk; |
| GstQTPad *best_pad = NULL; |
| |
| /* If interleave limits have been specified and the current pad is within |
| * those interleave limits, pick that one, otherwise let's try to figure out |
| * the next best one. */ |
| if (qtmux->current_pad && |
| (qtmux->interleave_bytes != 0 || qtmux->interleave_time != 0) && |
| (qtmux->interleave_bytes == 0 |
| || qtmux->current_chunk_size <= qtmux->interleave_bytes) |
| && (qtmux->interleave_time == 0 |
| || qtmux->current_chunk_duration <= qtmux->interleave_time) |
| && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED |
| && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) { |
| |
| if (qtmux->current_pad->total_duration < qtmux->reserved_max_duration) { |
| best_pad = qtmux->current_pad; |
| } |
| } else if (qtmux->collect->data->next) { |
| /* Attempt to try another pad if we have one. Otherwise use the only pad |
| * present */ |
| best_pad = qtmux->current_pad = NULL; |
| } |
| |
| /* The next best pad is the one which has the lowest timestamp and hasn't |
| * exceeded the reserved max duration */ |
| if (!best_pad) { |
| GstClockTime best_time = GST_CLOCK_TIME_NONE; |
| |
| for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *qtpad = (GstQTPad *) cdata; |
| GstClockTime timestamp; |
| |
| if (qtpad->total_duration >= qtmux->reserved_max_duration) |
| continue; |
| |
| timestamp = qtpad->total_duration; |
| |
| if (best_pad == NULL || |
| !GST_CLOCK_TIME_IS_VALID (best_time) || timestamp < best_time) { |
| best_pad = qtpad; |
| best_time = timestamp; |
| } |
| } |
| } |
| |
| return best_pad; |
| } |
| |
| /* Called when starting the file in prefill_mode to figure out all the entries |
| * of the header based on the input stream and reserved maximum duration. |
| * |
| * The _actual_ header (i.e. with the proper duration and trimmed sample tables) |
| * will be updated and written on EOS. */ |
| static gboolean |
| gst_qt_mux_prefill_samples (GstQTMux * qtmux) |
| { |
| GstQTPad *qpad; |
| GSList *walk; |
| GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux)); |
| |
| /* Update expected sample sizes/durations as needed, this is for raw |
| * audio where samples are actual audio samples. */ |
| for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *qpad = (GstQTPad *) cdata; |
| |
| if (!prefill_update_sample_size (qtmux, qpad)) |
| return FALSE; |
| } |
| |
| if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT) { |
| /* For the first sample check/update timecode as needed. We do that before |
| * all actual samples as the code in gst_qt_mux_add_buffer() does it with |
| * initial buffer directly, not with last_buf */ |
| for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *qpad = (GstQTPad *) cdata; |
| GstBuffer *buffer = |
| gst_collect_pads_peek (qtmux->collect, (GstCollectData *) qpad); |
| GstVideoTimeCodeMeta *tc_meta; |
| |
| if (buffer && (tc_meta = gst_buffer_get_video_time_code_meta (buffer))) { |
| GstVideoTimeCode *tc = &tc_meta->tc; |
| |
| qpad->tc_trak = atom_trak_new (qtmux->context); |
| atom_moov_add_trak (qtmux->moov, qpad->tc_trak); |
| |
| qpad->trak->tref = atom_tref_new (FOURCC_tmcd); |
| atom_tref_add_entry (qpad->trak->tref, qpad->tc_trak->tkhd.track_ID); |
| |
| atom_trak_set_timecode_type (qpad->tc_trak, qtmux->context, |
| qpad->trak->mdia.mdhd.time_info.timescale, tc); |
| |
| atom_trak_add_samples (qpad->tc_trak, 1, 1, 4, |
| qtmux->mdat_size, FALSE, 0); |
| |
| qpad->tc_pos = qtmux->mdat_size; |
| qpad->first_tc = gst_video_time_code_copy (tc); |
| qpad->first_pts = GST_BUFFER_PTS (buffer); |
| |
| qtmux->current_chunk_offset = -1; |
| qtmux->current_chunk_size = 0; |
| qtmux->current_chunk_duration = 0; |
| qtmux->mdat_size += 4; |
| } |
| if (buffer) |
| gst_buffer_unref (buffer); |
| } |
| } |
| |
| while ((qpad = find_best_pad_prefill_start (qtmux))) { |
| GstClockTime timestamp, next_timestamp, duration; |
| guint nsamples, sample_size; |
| guint64 chunk_offset; |
| gint64 scaled_duration; |
| gint64 pts_offset = 0; |
| gboolean sync = FALSE; |
| TrakBufferEntryInfo sample_entry; |
| |
| sample_size = prefill_get_sample_size (qtmux, qpad); |
| |
| if (sample_size == -1) { |
| return FALSE; |
| } |
| |
| if (!qpad->samples) |
| qpad->samples = g_array_new (FALSE, FALSE, sizeof (TrakBufferEntryInfo)); |
| |
| timestamp = qpad->total_duration; |
| next_timestamp = prefill_get_next_timestamp (qtmux, qpad); |
| duration = next_timestamp - timestamp; |
| |
| if (qpad->first_ts == GST_CLOCK_TIME_NONE) |
| qpad->first_ts = timestamp; |
| if (qpad->first_dts == GST_CLOCK_TIME_NONE) |
| qpad->first_dts = timestamp; |
| |
| if (qtmux->current_pad != qpad || qtmux->current_chunk_offset == -1) { |
| qtmux->current_pad = qpad; |
| if (qtmux->current_chunk_offset == -1) |
| qtmux->current_chunk_offset = qtmux->mdat_size; |
| else |
| qtmux->current_chunk_offset += qtmux->current_chunk_size; |
| qtmux->current_chunk_size = 0; |
| qtmux->current_chunk_duration = 0; |
| } |
| if (qpad->sample_size) |
| nsamples = sample_size / qpad->sample_size; |
| else |
| nsamples = 1; |
| qpad->last_dts = timestamp; |
| scaled_duration = gst_util_uint64_scale_round (timestamp + duration, |
| atom_trak_get_timescale (qpad->trak), |
| GST_SECOND) - gst_util_uint64_scale_round (timestamp, |
| atom_trak_get_timescale (qpad->trak), GST_SECOND); |
| |
| qtmux->current_chunk_size += sample_size; |
| qtmux->current_chunk_duration += duration; |
| qpad->total_bytes += sample_size; |
| |
| chunk_offset = qtmux->current_chunk_offset; |
| |
| /* I-frame only, no frame reordering */ |
| sync = FALSE; |
| pts_offset = 0; |
| |
| if (qtmux->current_chunk_duration > qtmux->longest_chunk |
| || !GST_CLOCK_TIME_IS_VALID (qtmux->longest_chunk)) { |
| qtmux->longest_chunk = qtmux->current_chunk_duration; |
| } |
| |
| sample_entry.track_id = qpad->trak->tkhd.track_ID; |
| sample_entry.nsamples = nsamples; |
| sample_entry.delta = scaled_duration / nsamples; |
| sample_entry.size = sample_size / nsamples; |
| sample_entry.chunk_offset = chunk_offset; |
| sample_entry.pts_offset = pts_offset; |
| sample_entry.sync = sync; |
| sample_entry.do_pts = TRUE; |
| g_array_append_val (qpad->samples, sample_entry); |
| atom_trak_add_samples (qpad->trak, nsamples, scaled_duration / nsamples, |
| sample_size / nsamples, chunk_offset, sync, pts_offset); |
| |
| qpad->total_duration = next_timestamp; |
| qtmux->mdat_size += sample_size; |
| qpad->sample_offset += nsamples; |
| } |
| |
| return TRUE; |
| } |
| |
| static GstFlowReturn |
| gst_qt_mux_start_file (GstQTMux * qtmux) |
| { |
| GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux)); |
| GstFlowReturn ret = GST_FLOW_OK; |
| GstCaps *caps; |
| GstSegment segment; |
| gchar s_id[32]; |
| GstClockTime reserved_max_duration; |
| guint reserved_bytes_per_sec_per_trak; |
| GSList *walk; |
| |
| GST_DEBUG_OBJECT (qtmux, "starting file"); |
| |
| GST_OBJECT_LOCK (qtmux); |
| reserved_max_duration = qtmux->reserved_max_duration; |
| reserved_bytes_per_sec_per_trak = qtmux->reserved_bytes_per_sec_per_trak; |
| GST_OBJECT_UNLOCK (qtmux); |
| |
| /* stream-start (FIXME: create id based on input ids) */ |
| g_snprintf (s_id, sizeof (s_id), "qtmux-%08x", g_random_int ()); |
| gst_pad_push_event (qtmux->srcpad, gst_event_new_stream_start (s_id)); |
| |
| caps = gst_caps_copy (gst_pad_get_pad_template_caps (qtmux->srcpad)); |
| /* qtmux has structure with and without variant, remove all but the first */ |
| while (gst_caps_get_size (caps) > 1) |
| gst_caps_remove_structure (caps, 1); |
| gst_pad_set_caps (qtmux->srcpad, caps); |
| gst_caps_unref (caps); |
| |
| /* Default is 'normal' mode */ |
| qtmux->mux_mode = GST_QT_MUX_MODE_MOOV_AT_END; |
| |
| /* Require a sensible fragment duration when muxing |
| * using the ISML muxer */ |
| if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML && |
| qtmux->fragment_duration == 0) |
| goto invalid_isml; |
| |
| if (qtmux->fragment_duration > 0) { |
| if (qtmux->streamable) |
| qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE; |
| else |
| qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED; |
| } else if (qtmux->fast_start) { |
| qtmux->mux_mode = GST_QT_MUX_MODE_FAST_START; |
| } else if (reserved_max_duration != GST_CLOCK_TIME_NONE) { |
| if (qtmux->reserved_prefill) |
| qtmux->mux_mode = GST_QT_MUX_MODE_ROBUST_RECORDING_PREFILL; |
| else |
| qtmux->mux_mode = GST_QT_MUX_MODE_ROBUST_RECORDING; |
| } |
| |
| switch (qtmux->mux_mode) { |
| case GST_QT_MUX_MODE_MOOV_AT_END: |
| case GST_QT_MUX_MODE_ROBUST_RECORDING: |
| /* We have to be able to seek to rewrite the mdat header, or any |
| * moov atom we write will not be visible in the file, because an |
| * MDAT with 0 as the size covers the rest of the file. A file |
| * with no moov is not playable, so error out now. */ |
| if (!gst_qt_mux_downstream_is_seekable (qtmux)) { |
| GST_ELEMENT_ERROR (qtmux, STREAM, MUX, |
| ("Downstream is not seekable - will not be able to create a playable file"), |
| (NULL)); |
| return GST_FLOW_ERROR; |
| } |
| break; |
| case GST_QT_MUX_MODE_FAST_START: |
| case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE: |
| break; /* Don't need seekability, ignore */ |
| case GST_QT_MUX_MODE_FRAGMENTED: |
| if (!gst_qt_mux_downstream_is_seekable (qtmux)) { |
| GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but " |
| "streamable=false. Will ignore that and create streamable output " |
| "instead"); |
| qtmux->streamable = TRUE; |
| g_object_notify (G_OBJECT (qtmux), "streamable"); |
| } |
| break; |
| case GST_QT_MUX_MODE_ROBUST_RECORDING_PREFILL: |
| if (!gst_qt_mux_downstream_is_seekable (qtmux)) { |
| GST_WARNING_OBJECT (qtmux, |
| "downstream is not seekable, will not be able " |
| "to trim samples table at the end if less than reserved-duration is " |
| "recorded"); |
| } |
| break; |
| } |
| |
| /* let downstream know we think in BYTES and expect to do seeking later on */ |
| gst_segment_init (&segment, GST_FORMAT_BYTES); |
| gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment)); |
| |
| GST_OBJECT_LOCK (qtmux); |
| |
| if (qtmux->timescale == 0) { |
| guint32 suggested_timescale = 0; |
| GSList *walk; |
| |
| /* Calculate a reasonable timescale for the moov: |
| * If there is video, it is the biggest video track timescale or an even |
| * multiple of it if it's smaller than 1800. |
| * Otherwise it is 1800 */ |
| for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) { |
| GstCollectData *cdata = (GstCollectData *) walk->data; |
| GstQTPad *qpad = (GstQTPad *) cdata; |
| |
| if (!qpad->trak) |
| continue; |
| |
| /* not video */ |
| if (!qpad->trak->mdia.minf.vmhd) |
| continue; |
| |
| suggested_timescale = |
| MAX (qpad->trak->mdia.mdhd.time_info.timescale, suggested_timescale); |
| } |
| |
| if (suggested_timescale == 0) |
| suggested_timescale = 1800; |
| |
| while (suggested_timescale < 1800) |
| suggested_timescale *= 2; |
| |
| qtmux->timescale = suggested_timescale; |
| } |
| |
| /* initialize our moov recovery file */ |
| if (qtmux->moov_recov_file_path) { |
| gst_qt_mux_prepare_moov_recovery (qtmux); |
| } |
| |
| /* Make sure the first time we update the moov, we'll |
| * include any tagsetter tags */ |
| qtmux->tags_changed = TRUE; |
| |
| GST_OBJECT_UNLOCK (qtmux); |
| |
| /* |
| * send mdat header if already needed, and mark position for later update. |
| * We don't send ftyp now if we are on fast start mode, because we can |
| * better fine tune using the information we gather to create the whole moov |
| * atom. |
| */ |
| switch (qtmux->mux_mode) { |
| case GST_QT_MUX_MODE_MOOV_AT_END: |
| ret = gst_qt_mux_prepare_and_send_ftyp (qtmux); |
| if (ret != GST_FLOW_OK) |
| break; |
| |
| /* Store this as the mdat offset for later updating |
| * when we write the moov */ |
| qtmux->mdat_pos = qtmux->header_size; |
| /* extended atom in case we go over 4GB while writing and need |
| * the full 64-bit atom */ |
| ret = |
| gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE, |
| FALSE); |
| break; |
| case GST_QT_MUX_MODE_ROBUST_RECORDING: |
| ret = gst_qt_mux_prepare_and_send_ftyp (qtmux); |
| if (ret != GST_FLOW_OK) |
| break; |
| |
| /* Pad ftyp out to an 8-byte boundary before starting the moov |
| * ping pong region. It should be well less than 1 disk sector, |
| * unless there's a bajillion compatible types listed, |
| * but let's be sure the free atom doesn't cross a sector |
| * boundary anyway */ |
| if (qtmux->header_size % 8) { |
| /* Extra 8 bytes for the padding free atom header */ |
| guint padding = (guint) (16 - (qtmux->header_size % 8)); |
| GST_LOG_OBJECT (qtmux, "Rounding ftyp by %u bytes", padding); |
| ret = |
| gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, padding, |
| FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| } |
| |
| /* Store this as the moov offset for later updating. |
| * We record mdat position below */ |
| qtmux->moov_pos = qtmux->header_size; |
| |
| /* Set up the initial 'ping' state of the ping-pong buffers */ |
| qtmux->reserved_moov_first_active = TRUE; |
| |
| gst_qt_mux_configure_moov (qtmux); |
| gst_qt_mux_setup_metadata (qtmux); |
| /* Empty free atom to begin, starting on an 8-byte boundary */ |
| ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, 8, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| /* Moov header, not padded yet */ |
| ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| /* The moov we just sent contains the 'base' size of the moov, before |
| * we put in any time-dependent per-trak data. Use that to make |
| * a good estimate of how much extra to reserve */ |
| /* Calculate how much space to reserve for our MOOV atom. |
| * We actually reserve twice that, for ping-pong buffers */ |
| qtmux->base_moov_size = qtmux->last_moov_size; |
| GST_LOG_OBJECT (qtmux, "Base moov size is %u before any indexes", |
| qtmux->base_moov_size); |
| qtmux->reserved_moov_size = qtmux->base_moov_size + |
| gst_util_uint64_scale (reserved_max_duration, |
| reserved_bytes_per_sec_per_trak * |
| atom_moov_get_trak_count (qtmux->moov), GST_SECOND); |
| |
| /* Need space for at least 4 atom headers. More really, but |
| * this as an absolute minimum */ |
| if (qtmux->reserved_moov_size < 4 * 8) |
| goto reserved_moov_too_small; |
| |
| GST_DEBUG_OBJECT (qtmux, "reserving header area of size %u", |
| 2 * qtmux->reserved_moov_size + 16); |
| |
| GST_OBJECT_LOCK (qtmux); |
| qtmux->reserved_duration_remaining = |
| gst_util_uint64_scale (qtmux->reserved_moov_size - |
| qtmux->base_moov_size, GST_SECOND, |
| reserved_bytes_per_sec_per_trak * |
| atom_moov_get_trak_count (qtmux->moov)); |
| GST_OBJECT_UNLOCK (qtmux); |
| |
| /* Now that we know how much reserved space is targetted, |
| * output a free atom to fill the extra reserved */ |
| ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, |
| qtmux->reserved_moov_size - qtmux->base_moov_size, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| |
| /* Then a free atom containing 'pong' buffer, with an |
| * extra 8 bytes to account for the free atom header itself */ |
| ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, |
| qtmux->reserved_moov_size + 8, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| |
| /* extra atoms go after the free/moov(s), before the mdat */ |
| ret = |
| gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| |
| qtmux->mdat_pos = qtmux->header_size; |
| /* extended atom in case we go over 4GB while writing and need |
| * the full 64-bit atom */ |
| ret = |
| gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE, |
| FALSE); |
| break; |
| case GST_QT_MUX_MODE_ROBUST_RECORDING_PREFILL: |
| ret = gst_qt_mux_prepare_and_send_ftyp (qtmux); |
| if (ret != GST_FLOW_OK) |
| break; |
| |
| /* Store this as the moov offset for later updating. |
| * We record mdat position below */ |
| qtmux->moov_pos = qtmux->header_size; |
| |
| if (!gst_qt_mux_prefill_samples (qtmux)) { |
| GST_ELEMENT_ERROR (qtmux, STREAM, MUX, |
| ("Unsupported codecs or configuration for prefill mode"), (NULL)); |
| |
| return GST_FLOW_ERROR; |
| } |
| |
| gst_qt_mux_update_global_statistics (qtmux); |
| gst_qt_mux_configure_moov (qtmux); |
| gst_qt_mux_update_edit_lists (qtmux); |
| gst_qt_mux_setup_metadata (qtmux); |
| |
| /* Moov header with pre-filled samples */ |
| ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| |
| /* last_moov_size now contains the full size of the moov, moov_pos the |
| * position. This allows us to rewrite it in the very end as needed */ |
| qtmux->reserved_moov_size = |
| qtmux->last_moov_size + 12 * g_slist_length (qtmux->sinkpads) + 8; |
| |
| /* Send an additional free atom at the end so we definitely have space |
| * to rewrite the moov header at the end and remove the samples that |
| * were not actually written */ |
| ret = |
| gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, |
| 12 * g_slist_length (qtmux->sinkpads) + 8, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| |
| /* extra atoms go after the free/moov(s), before the mdat */ |
| ret = |
| gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE); |
| if (ret != GST_FLOW_OK) |
| return ret; |
| |
| qtmux->mdat_pos = qtmux->header_size; |
| |
| /* And now send the mdat header */ |
| ret = |
| gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, |
| qtmux->mdat_size, TRUE, FALSE); |
| |
| /* chunks position is set relative to the first byte of the |
| * MDAT atom payload. Set the overall offset into the file */ |
| atom_moov_chunks_set_offset (qtmux->moov, qtmux->header_size); |
| |
| { |
| GstSegment segment; |
| |
| gst_segment_init (&segment, GST_FORMAT_BYTES); |
| segment.start = qtmux->moov_pos; |
| gst_pad_push_event (qtmux->srcpad, gst_event_new_segment
|