| /* GStreamer |
| * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
| * 2000 Wim Taymans <wim@fluendo.com> |
| * |
| * gstfakesrc.c: |
| * |
| * 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. |
| */ |
| /** |
| * SECTION:element-fakesrc |
| * @see_also: #GstFakeSink |
| * |
| * The fakesrc element is a multipurpose element that can generate |
| * a wide range of buffers and can operate in various scheduling modes. |
| * |
| * It is mostly used as a testing element, one trivial example for testing |
| * basic <application>GStreamer</application> core functionality is: |
| * |
| * <refsect2> |
| * <title>Example launch line</title> |
| * |[ |
| * gst-launch-1.0 -v fakesrc num-buffers=5 ! fakesink |
| * ]| This pipeline will push 5 empty buffers to the fakesink element and then |
| * sends an EOS. |
| * </refsect2> |
| */ |
| |
| /* FIXME: this ignores basesrc::blocksize property, which could be used as an |
| * alias to ::sizemax (see gst_base_src_get_blocksize()). |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include "config.h" |
| #endif |
| |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "gstelements_private.h" |
| #include "gstfakesrc.h" |
| |
| static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src", |
| GST_PAD_SRC, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS_ANY); |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_fake_src_debug); |
| #define GST_CAT_DEFAULT gst_fake_src_debug |
| |
| /* FakeSrc signals and args */ |
| enum |
| { |
| /* FILL ME */ |
| SIGNAL_HANDOFF, |
| LAST_SIGNAL |
| }; |
| |
| #define DEFAULT_OUTPUT FAKE_SRC_FIRST_LAST_LOOP |
| #define DEFAULT_DATA FAKE_SRC_DATA_ALLOCATE |
| #define DEFAULT_SIZETYPE FAKE_SRC_SIZETYPE_EMPTY |
| #define DEFAULT_SIZEMIN 0 |
| #define DEFAULT_SIZEMAX 4096 |
| #define DEFAULT_FILLTYPE FAKE_SRC_FILLTYPE_ZERO |
| #define DEFAULT_DATARATE 0 |
| #define DEFAULT_SYNC FALSE |
| #define DEFAULT_PATTERN NULL |
| #define DEFAULT_EOS FALSE |
| #define DEFAULT_SIGNAL_HANDOFFS FALSE |
| #define DEFAULT_SILENT TRUE |
| #define DEFAULT_DUMP FALSE |
| #define DEFAULT_PARENTSIZE 4096*10 |
| #define DEFAULT_CAN_ACTIVATE_PULL TRUE |
| #define DEFAULT_CAN_ACTIVATE_PUSH TRUE |
| #define DEFAULT_FORMAT GST_FORMAT_BYTES |
| |
| enum |
| { |
| PROP_0, |
| PROP_OUTPUT, |
| PROP_DATA, |
| PROP_SIZETYPE, |
| PROP_SIZEMIN, |
| PROP_SIZEMAX, |
| PROP_FILLTYPE, |
| PROP_DATARATE, |
| PROP_SYNC, |
| PROP_PATTERN, |
| PROP_EOS, |
| PROP_SIGNAL_HANDOFFS, |
| PROP_SILENT, |
| PROP_DUMP, |
| PROP_PARENTSIZE, |
| PROP_LAST_MESSAGE, |
| PROP_CAN_ACTIVATE_PULL, |
| PROP_CAN_ACTIVATE_PUSH, |
| PROP_IS_LIVE, |
| PROP_FORMAT, |
| PROP_LAST, |
| }; |
| |
| /* not implemented |
| #define GST_TYPE_FAKE_SRC_OUTPUT (gst_fake_src_output_get_type()) |
| static GType |
| gst_fake_src_output_get_type (void) |
| { |
| static GType fakesrc_output_type = 0; |
| static const GEnumValue fakesrc_output[] = { |
| {FAKE_SRC_FIRST_LAST_LOOP, "1", "First-Last loop"}, |
| {FAKE_SRC_LAST_FIRST_LOOP, "2", "Last-First loop"}, |
| {FAKE_SRC_PING_PONG, "3", "Ping-Pong"}, |
| {FAKE_SRC_ORDERED_RANDOM, "4", "Ordered Random"}, |
| {FAKE_SRC_RANDOM, "5", "Random"}, |
| {FAKE_SRC_PATTERN_LOOP, "6", "Patttern loop"}, |
| {FAKE_SRC_PING_PONG_PATTERN, "7", "Ping-Pong Pattern"}, |
| {FAKE_SRC_GET_ALWAYS_SUCEEDS, "8", "'_get' Always succeeds"}, |
| {0, NULL, NULL}, |
| }; |
| |
| if (!fakesrc_output_type) { |
| fakesrc_output_type = |
| g_enum_register_static ("GstFakeSrcOutput", fakesrc_output); |
| } |
| return fakesrc_output_type; |
| } |
| */ |
| |
| #define GST_TYPE_FAKE_SRC_DATA (gst_fake_src_data_get_type()) |
| static GType |
| gst_fake_src_data_get_type (void) |
| { |
| static GType fakesrc_data_type = 0; |
| static const GEnumValue fakesrc_data[] = { |
| {FAKE_SRC_DATA_ALLOCATE, "Allocate data", "allocate"}, |
| {FAKE_SRC_DATA_SUBBUFFER, "Subbuffer data", "subbuffer"}, |
| {0, NULL, NULL}, |
| }; |
| |
| if (!fakesrc_data_type) { |
| fakesrc_data_type = |
| g_enum_register_static ("GstFakeSrcDataType", fakesrc_data); |
| } |
| return fakesrc_data_type; |
| } |
| |
| #define GST_TYPE_FAKE_SRC_SIZETYPE (gst_fake_src_sizetype_get_type()) |
| static GType |
| gst_fake_src_sizetype_get_type (void) |
| { |
| static GType fakesrc_sizetype_type = 0; |
| static const GEnumValue fakesrc_sizetype[] = { |
| {FAKE_SRC_SIZETYPE_EMPTY, "Send empty buffers", "empty"}, |
| {FAKE_SRC_SIZETYPE_FIXED, "Fixed size buffers (sizemax sized)", "fixed"}, |
| {FAKE_SRC_SIZETYPE_RANDOM, |
| "Random sized buffers (sizemin <= size <= sizemax)", "random"}, |
| {0, NULL, NULL}, |
| }; |
| |
| if (!fakesrc_sizetype_type) { |
| fakesrc_sizetype_type = |
| g_enum_register_static ("GstFakeSrcSizeType", fakesrc_sizetype); |
| } |
| return fakesrc_sizetype_type; |
| } |
| |
| #define GST_TYPE_FAKE_SRC_FILLTYPE (gst_fake_src_filltype_get_type()) |
| static GType |
| gst_fake_src_filltype_get_type (void) |
| { |
| static GType fakesrc_filltype_type = 0; |
| static const GEnumValue fakesrc_filltype[] = { |
| {FAKE_SRC_FILLTYPE_NOTHING, "Leave data as malloced", "nothing"}, |
| {FAKE_SRC_FILLTYPE_ZERO, "Fill buffers with zeros", "zero"}, |
| {FAKE_SRC_FILLTYPE_RANDOM, "Fill buffers with random data", "random"}, |
| {FAKE_SRC_FILLTYPE_PATTERN, "Fill buffers with pattern 0x00 -> 0xff", |
| "pattern"}, |
| {FAKE_SRC_FILLTYPE_PATTERN_CONT, |
| "Fill buffers with pattern 0x00 -> 0xff that spans buffers", |
| "pattern-span"}, |
| {0, NULL, NULL}, |
| }; |
| |
| if (!fakesrc_filltype_type) { |
| fakesrc_filltype_type = |
| g_enum_register_static ("GstFakeSrcFillType", fakesrc_filltype); |
| } |
| return fakesrc_filltype_type; |
| } |
| |
| #define _do_init \ |
| GST_DEBUG_CATEGORY_INIT (gst_fake_src_debug, "fakesrc", 0, "fakesrc element"); |
| #define gst_fake_src_parent_class parent_class |
| G_DEFINE_TYPE_WITH_CODE (GstFakeSrc, gst_fake_src, GST_TYPE_BASE_SRC, _do_init); |
| |
| static void gst_fake_src_finalize (GObject * object); |
| static void gst_fake_src_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_fake_src_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| |
| static gboolean gst_fake_src_start (GstBaseSrc * basesrc); |
| static gboolean gst_fake_src_stop (GstBaseSrc * basesrc); |
| static gboolean gst_fake_src_is_seekable (GstBaseSrc * basesrc); |
| |
| static gboolean gst_fake_src_event_handler (GstBaseSrc * src, GstEvent * event); |
| static void gst_fake_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer, |
| GstClockTime * start, GstClockTime * end); |
| static GstFlowReturn gst_fake_src_create (GstBaseSrc * src, guint64 offset, |
| guint length, GstBuffer ** buf); |
| |
| static guint gst_fake_src_signals[LAST_SIGNAL] = { 0 }; |
| |
| static GParamSpec *pspec_last_message = NULL; |
| |
| static void |
| gst_fake_src_class_init (GstFakeSrcClass * klass) |
| { |
| GObjectClass *gobject_class; |
| GstElementClass *gstelement_class; |
| GstBaseSrcClass *gstbase_src_class; |
| |
| gobject_class = G_OBJECT_CLASS (klass); |
| gstelement_class = GST_ELEMENT_CLASS (klass); |
| gstbase_src_class = GST_BASE_SRC_CLASS (klass); |
| |
| gobject_class->finalize = gst_fake_src_finalize; |
| |
| gobject_class->set_property = gst_fake_src_set_property; |
| gobject_class->get_property = gst_fake_src_get_property; |
| |
| /* |
| FIXME: this is not implemented; would make sense once basesrc and fakesrc |
| support multiple pads |
| g_object_class_install_property (gobject_class, PROP_OUTPUT, |
| g_param_spec_enum ("output", "output", "Output method (currently unused)", |
| GST_TYPE_FAKE_SRC_OUTPUT, DEFAULT_OUTPUT, G_PARAM_READWRITE)); |
| */ |
| g_object_class_install_property (gobject_class, PROP_DATA, |
| g_param_spec_enum ("data", "data", "Data allocation method", |
| GST_TYPE_FAKE_SRC_DATA, DEFAULT_DATA, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SIZETYPE, |
| g_param_spec_enum ("sizetype", "sizetype", |
| "How to determine buffer sizes", GST_TYPE_FAKE_SRC_SIZETYPE, |
| DEFAULT_SIZETYPE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_SIZEMIN, |
| g_param_spec_int ("sizemin", "sizemin", "Minimum buffer size", 0, |
| G_MAXINT, DEFAULT_SIZEMIN, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_SIZEMAX, |
| g_param_spec_int ("sizemax", "sizemax", "Maximum buffer size", 0, |
| G_MAXINT, DEFAULT_SIZEMAX, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_PARENTSIZE, |
| g_param_spec_int ("parentsize", "parentsize", |
| "Size of parent buffer for sub-buffered allocation", 0, G_MAXINT, |
| DEFAULT_PARENTSIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_FILLTYPE, |
| g_param_spec_enum ("filltype", "filltype", |
| "How to fill the buffer, if at all", GST_TYPE_FAKE_SRC_FILLTYPE, |
| DEFAULT_FILLTYPE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_DATARATE, |
| g_param_spec_int ("datarate", "Datarate", |
| "Timestamps buffers with number of bytes per second (0 = none)", 0, |
| G_MAXINT, DEFAULT_DATARATE, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_SYNC, |
| g_param_spec_boolean ("sync", "Sync", "Sync to the clock to the datarate", |
| DEFAULT_SYNC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| /* FIXME 2.0: Remove unused pattern property. Not implemented */ |
| g_object_class_install_property (gobject_class, PROP_PATTERN, |
| g_param_spec_string ("pattern", "pattern", "Set the pattern (unused)", |
| DEFAULT_PATTERN, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| pspec_last_message = g_param_spec_string ("last-message", "last-message", |
| "The last status message", NULL, |
| G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); |
| g_object_class_install_property (gobject_class, PROP_LAST_MESSAGE, |
| pspec_last_message); |
| g_object_class_install_property (gobject_class, PROP_SILENT, |
| g_param_spec_boolean ("silent", "Silent", |
| "Don't produce last_message events", DEFAULT_SILENT, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_SIGNAL_HANDOFFS, |
| g_param_spec_boolean ("signal-handoffs", "Signal handoffs", |
| "Send a signal before pushing the buffer", DEFAULT_SIGNAL_HANDOFFS, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_DUMP, |
| g_param_spec_boolean ("dump", "Dump", "Dump buffer contents to stdout", |
| DEFAULT_DUMP, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_CAN_ACTIVATE_PUSH, |
| g_param_spec_boolean ("can-activate-push", "Can activate push", |
| "Can activate in push mode", DEFAULT_CAN_ACTIVATE_PUSH, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_CAN_ACTIVATE_PULL, |
| g_param_spec_boolean ("can-activate-pull", "Can activate pull", |
| "Can activate in pull mode", DEFAULT_CAN_ACTIVATE_PULL, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_IS_LIVE, |
| g_param_spec_boolean ("is-live", "Is this a live source", |
| "True if the element cannot produce data in PAUSED", FALSE, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| /** |
| * GstFakeSrc:format |
| * |
| * Set the format of the newsegment events to produce. |
| */ |
| g_object_class_install_property (gobject_class, PROP_FORMAT, |
| g_param_spec_enum ("format", "Format", |
| "The format of the segment events", GST_TYPE_FORMAT, |
| DEFAULT_FORMAT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| /** |
| * GstFakeSrc::handoff: |
| * @fakesrc: the fakesrc instance |
| * @buffer: the buffer that will be pushed |
| * @pad: the pad that will sent it |
| * |
| * This signal gets emitted before sending the buffer. |
| */ |
| gst_fake_src_signals[SIGNAL_HANDOFF] = |
| g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, |
| G_STRUCT_OFFSET (GstFakeSrcClass, handoff), NULL, NULL, |
| g_cclosure_marshal_generic, G_TYPE_NONE, 2, |
| GST_TYPE_BUFFER | G_SIGNAL_TYPE_STATIC_SCOPE, GST_TYPE_PAD); |
| |
| gst_element_class_set_static_metadata (gstelement_class, |
| "Fake Source", |
| "Source", |
| "Push empty (no data) buffers around", |
| "Erik Walthinsen <omega@cse.ogi.edu>, " "Wim Taymans <wim@fluendo.com>"); |
| gst_element_class_add_pad_template (gstelement_class, |
| gst_static_pad_template_get (&srctemplate)); |
| |
| gstbase_src_class->is_seekable = GST_DEBUG_FUNCPTR (gst_fake_src_is_seekable); |
| gstbase_src_class->start = GST_DEBUG_FUNCPTR (gst_fake_src_start); |
| gstbase_src_class->stop = GST_DEBUG_FUNCPTR (gst_fake_src_stop); |
| gstbase_src_class->event = GST_DEBUG_FUNCPTR (gst_fake_src_event_handler); |
| gstbase_src_class->get_times = GST_DEBUG_FUNCPTR (gst_fake_src_get_times); |
| gstbase_src_class->create = GST_DEBUG_FUNCPTR (gst_fake_src_create); |
| } |
| |
| static void |
| gst_fake_src_init (GstFakeSrc * fakesrc) |
| { |
| fakesrc->output = FAKE_SRC_FIRST_LAST_LOOP; |
| fakesrc->silent = DEFAULT_SILENT; |
| fakesrc->signal_handoffs = DEFAULT_SIGNAL_HANDOFFS; |
| fakesrc->dump = DEFAULT_DUMP; |
| fakesrc->pattern_byte = 0x00; |
| fakesrc->data = FAKE_SRC_DATA_ALLOCATE; |
| fakesrc->sizetype = FAKE_SRC_SIZETYPE_EMPTY; |
| fakesrc->filltype = FAKE_SRC_FILLTYPE_NOTHING; |
| fakesrc->sizemin = DEFAULT_SIZEMIN; |
| fakesrc->sizemax = DEFAULT_SIZEMAX; |
| fakesrc->parent = NULL; |
| fakesrc->parentsize = DEFAULT_PARENTSIZE; |
| fakesrc->last_message = NULL; |
| fakesrc->datarate = DEFAULT_DATARATE; |
| fakesrc->sync = DEFAULT_SYNC; |
| fakesrc->format = DEFAULT_FORMAT; |
| } |
| |
| static void |
| gst_fake_src_finalize (GObject * object) |
| { |
| GstFakeSrc *src; |
| |
| src = GST_FAKE_SRC (object); |
| |
| g_free (src->last_message); |
| if (src->parent) { |
| gst_buffer_unref (src->parent); |
| src->parent = NULL; |
| } |
| |
| G_OBJECT_CLASS (parent_class)->finalize (object); |
| } |
| |
| static gboolean |
| gst_fake_src_event_handler (GstBaseSrc * basesrc, GstEvent * event) |
| { |
| GstFakeSrc *src; |
| |
| src = GST_FAKE_SRC (basesrc); |
| |
| if (!src->silent) { |
| const GstStructure *s; |
| const gchar *tstr; |
| gchar *sstr; |
| |
| GST_OBJECT_LOCK (src); |
| g_free (src->last_message); |
| |
| tstr = gst_event_type_get_name (GST_EVENT_TYPE (event)); |
| |
| if ((s = gst_event_get_structure (event))) |
| sstr = gst_structure_to_string (s); |
| else |
| sstr = g_strdup (""); |
| |
| src->last_message = |
| g_strdup_printf ("event ******* (%s:%s) E (type: %s (%d), %s) %p", |
| GST_DEBUG_PAD_NAME (GST_BASE_SRC_CAST (src)->srcpad), |
| tstr, GST_EVENT_TYPE (event), sstr, event); |
| g_free (sstr); |
| GST_OBJECT_UNLOCK (src); |
| |
| g_object_notify_by_pspec ((GObject *) src, pspec_last_message); |
| } |
| |
| return GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event); |
| } |
| |
| static void |
| gst_fake_src_alloc_parent (GstFakeSrc * src) |
| { |
| GstBuffer *buf; |
| |
| buf = gst_buffer_new_allocate (NULL, src->parentsize, NULL); |
| |
| src->parent = buf; |
| src->parentoffset = 0; |
| } |
| |
| static void |
| gst_fake_src_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstFakeSrc *src; |
| GstBaseSrc *basesrc; |
| |
| src = GST_FAKE_SRC (object); |
| basesrc = GST_BASE_SRC (object); |
| |
| switch (prop_id) { |
| case PROP_OUTPUT: |
| g_warning ("not yet implemented"); |
| break; |
| case PROP_DATA: |
| src->data = (GstFakeSrcDataType) g_value_get_enum (value); |
| |
| if (src->data == FAKE_SRC_DATA_SUBBUFFER) { |
| if (!src->parent) |
| gst_fake_src_alloc_parent (src); |
| } else { |
| if (src->parent) { |
| gst_buffer_unref (src->parent); |
| src->parent = NULL; |
| } |
| } |
| break; |
| case PROP_SIZETYPE: |
| src->sizetype = (GstFakeSrcSizeType) g_value_get_enum (value); |
| break; |
| case PROP_SIZEMIN: |
| src->sizemin = g_value_get_int (value); |
| break; |
| case PROP_SIZEMAX: |
| src->sizemax = g_value_get_int (value); |
| break; |
| case PROP_PARENTSIZE: |
| src->parentsize = g_value_get_int (value); |
| break; |
| case PROP_FILLTYPE: |
| src->filltype = (GstFakeSrcFillType) g_value_get_enum (value); |
| break; |
| case PROP_DATARATE: |
| src->datarate = g_value_get_int (value); |
| break; |
| case PROP_SYNC: |
| src->sync = g_value_get_boolean (value); |
| break; |
| case PROP_PATTERN: |
| break; |
| case PROP_SILENT: |
| src->silent = g_value_get_boolean (value); |
| break; |
| case PROP_SIGNAL_HANDOFFS: |
| src->signal_handoffs = g_value_get_boolean (value); |
| break; |
| case PROP_DUMP: |
| src->dump = g_value_get_boolean (value); |
| break; |
| case PROP_CAN_ACTIVATE_PUSH: |
| g_return_if_fail (!GST_OBJECT_FLAG_IS_SET (object, |
| GST_BASE_SRC_FLAG_STARTED)); |
| GST_BASE_SRC (src)->can_activate_push = g_value_get_boolean (value); |
| break; |
| case PROP_CAN_ACTIVATE_PULL: |
| g_return_if_fail (!GST_OBJECT_FLAG_IS_SET (object, |
| GST_BASE_SRC_FLAG_STARTED)); |
| src->can_activate_pull = g_value_get_boolean (value); |
| break; |
| case PROP_IS_LIVE: |
| gst_base_src_set_live (basesrc, g_value_get_boolean (value)); |
| break; |
| case PROP_FORMAT: |
| src->format = (GstFormat) g_value_get_enum (value); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_fake_src_get_property (GObject * object, guint prop_id, GValue * value, |
| GParamSpec * pspec) |
| { |
| GstFakeSrc *src; |
| GstBaseSrc *basesrc; |
| |
| g_return_if_fail (GST_IS_FAKE_SRC (object)); |
| |
| src = GST_FAKE_SRC (object); |
| basesrc = GST_BASE_SRC (object); |
| |
| switch (prop_id) { |
| case PROP_OUTPUT: |
| g_value_set_enum (value, src->output); |
| break; |
| case PROP_DATA: |
| g_value_set_enum (value, src->data); |
| break; |
| case PROP_SIZETYPE: |
| g_value_set_enum (value, src->sizetype); |
| break; |
| case PROP_SIZEMIN: |
| g_value_set_int (value, src->sizemin); |
| break; |
| case PROP_SIZEMAX: |
| g_value_set_int (value, src->sizemax); |
| break; |
| case PROP_PARENTSIZE: |
| g_value_set_int (value, src->parentsize); |
| break; |
| case PROP_FILLTYPE: |
| g_value_set_enum (value, src->filltype); |
| break; |
| case PROP_DATARATE: |
| g_value_set_int (value, src->datarate); |
| break; |
| case PROP_SYNC: |
| g_value_set_boolean (value, src->sync); |
| break; |
| case PROP_PATTERN: |
| break; |
| case PROP_SILENT: |
| g_value_set_boolean (value, src->silent); |
| break; |
| case PROP_SIGNAL_HANDOFFS: |
| g_value_set_boolean (value, src->signal_handoffs); |
| break; |
| case PROP_DUMP: |
| g_value_set_boolean (value, src->dump); |
| break; |
| case PROP_LAST_MESSAGE: |
| GST_OBJECT_LOCK (src); |
| g_value_set_string (value, src->last_message); |
| GST_OBJECT_UNLOCK (src); |
| break; |
| case PROP_CAN_ACTIVATE_PUSH: |
| g_value_set_boolean (value, GST_BASE_SRC (src)->can_activate_push); |
| break; |
| case PROP_CAN_ACTIVATE_PULL: |
| g_value_set_boolean (value, src->can_activate_pull); |
| break; |
| case PROP_IS_LIVE: |
| g_value_set_boolean (value, gst_base_src_is_live (basesrc)); |
| break; |
| case PROP_FORMAT: |
| g_value_set_enum (value, src->format); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_fake_src_prepare_buffer (GstFakeSrc * src, guint8 * data, gsize size) |
| { |
| if (size == 0) |
| return; |
| |
| switch (src->filltype) { |
| case FAKE_SRC_FILLTYPE_ZERO: |
| memset (data, 0, size); |
| break; |
| case FAKE_SRC_FILLTYPE_RANDOM: |
| { |
| gint i; |
| guint8 *ptr = data; |
| |
| for (i = size; i; i--) { |
| *ptr++ = g_random_int_range (0, 256); |
| } |
| break; |
| } |
| case FAKE_SRC_FILLTYPE_PATTERN: |
| src->pattern_byte = 0x00; |
| case FAKE_SRC_FILLTYPE_PATTERN_CONT: |
| { |
| gint i; |
| guint8 *ptr = data; |
| |
| for (i = size; i; i--) { |
| *ptr++ = src->pattern_byte++; |
| } |
| break; |
| } |
| case FAKE_SRC_FILLTYPE_NOTHING: |
| default: |
| break; |
| } |
| } |
| |
| static GstBuffer * |
| gst_fake_src_alloc_buffer (GstFakeSrc * src, guint size) |
| { |
| GstBuffer *buf; |
| gpointer data; |
| gboolean do_prepare = FALSE; |
| |
| buf = gst_buffer_new (); |
| |
| if (size != 0) { |
| switch (src->filltype) { |
| case FAKE_SRC_FILLTYPE_NOTHING: |
| data = g_malloc (size); |
| break; |
| case FAKE_SRC_FILLTYPE_ZERO: |
| data = g_malloc0 (size); |
| break; |
| case FAKE_SRC_FILLTYPE_RANDOM: |
| case FAKE_SRC_FILLTYPE_PATTERN: |
| case FAKE_SRC_FILLTYPE_PATTERN_CONT: |
| default: |
| data = g_malloc (size); |
| do_prepare = TRUE; |
| break; |
| } |
| if (do_prepare) |
| gst_fake_src_prepare_buffer (src, data, size); |
| |
| gst_buffer_append_memory (buf, |
| gst_memory_new_wrapped (0, data, size, 0, size, data, g_free)); |
| } |
| |
| return buf; |
| } |
| |
| static guint |
| gst_fake_src_get_size (GstFakeSrc * src) |
| { |
| guint size; |
| |
| switch (src->sizetype) { |
| case FAKE_SRC_SIZETYPE_FIXED: |
| size = src->sizemax; |
| break; |
| case FAKE_SRC_SIZETYPE_RANDOM: |
| size = g_random_int_range (src->sizemin, src->sizemax); |
| break; |
| case FAKE_SRC_SIZETYPE_EMPTY: |
| default: |
| size = 0; |
| break; |
| } |
| |
| return size; |
| } |
| |
| static GstBuffer * |
| gst_fake_src_create_buffer (GstFakeSrc * src, gsize * bufsize) |
| { |
| GstBuffer *buf; |
| gsize size = gst_fake_src_get_size (src); |
| gboolean dump = src->dump; |
| GstMapInfo info; |
| |
| *bufsize = size; |
| |
| switch (src->data) { |
| case FAKE_SRC_DATA_ALLOCATE: |
| buf = gst_fake_src_alloc_buffer (src, size); |
| break; |
| case FAKE_SRC_DATA_SUBBUFFER: |
| /* see if we have a parent to subbuffer */ |
| if (!src->parent) { |
| gst_fake_src_alloc_parent (src); |
| g_assert (src->parent); |
| } |
| /* see if it's large enough */ |
| if ((src->parentsize - src->parentoffset) >= size) { |
| buf = |
| gst_buffer_copy_region (src->parent, GST_BUFFER_COPY_ALL, |
| src->parentoffset, size); |
| src->parentoffset += size; |
| } else { |
| /* the parent is useless now */ |
| gst_buffer_unref (src->parent); |
| src->parent = NULL; |
| /* try again (this will allocate a new parent) */ |
| return gst_fake_src_create_buffer (src, bufsize); |
| } |
| gst_buffer_map (buf, &info, GST_MAP_WRITE); |
| gst_fake_src_prepare_buffer (src, info.data, info.size); |
| gst_buffer_unmap (buf, &info); |
| break; |
| default: |
| g_warning ("fakesrc: dunno how to allocate buffers !"); |
| buf = gst_buffer_new (); |
| break; |
| } |
| if (dump) { |
| gst_buffer_map (buf, &info, GST_MAP_READ); |
| gst_util_dump_mem (info.data, info.size); |
| gst_buffer_unmap (buf, &info); |
| } |
| |
| return buf; |
| } |
| |
| static void |
| gst_fake_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer, |
| GstClockTime * start, GstClockTime * end) |
| { |
| GstFakeSrc *src; |
| |
| src = GST_FAKE_SRC (basesrc); |
| |
| /* sync on the timestamp of the buffer if requested. */ |
| if (src->sync) { |
| GstClockTime timestamp, duration; |
| |
| /* first sync on DTS, else use PTS */ |
| timestamp = GST_BUFFER_DTS (buffer); |
| if (!GST_CLOCK_TIME_IS_VALID (timestamp)) |
| timestamp = GST_BUFFER_PTS (buffer); |
| |
| if (GST_CLOCK_TIME_IS_VALID (timestamp)) { |
| /* get duration to calculate end time */ |
| duration = GST_BUFFER_DURATION (buffer); |
| if (GST_CLOCK_TIME_IS_VALID (duration)) { |
| *end = timestamp + duration; |
| } |
| *start = timestamp; |
| } |
| } else { |
| *start = -1; |
| *end = -1; |
| } |
| } |
| |
| static GstFlowReturn |
| gst_fake_src_create (GstBaseSrc * basesrc, guint64 offset, guint length, |
| GstBuffer ** ret) |
| { |
| GstFakeSrc *src; |
| GstBuffer *buf; |
| GstClockTime time; |
| gsize size; |
| |
| src = GST_FAKE_SRC (basesrc); |
| |
| buf = gst_fake_src_create_buffer (src, &size); |
| GST_BUFFER_OFFSET (buf) = offset; |
| |
| if (src->datarate > 0) { |
| time = (src->bytes_sent * GST_SECOND) / src->datarate; |
| |
| GST_BUFFER_DURATION (buf) = size * GST_SECOND / src->datarate; |
| } else if (gst_base_src_is_live (basesrc)) { |
| GstClock *clock; |
| |
| clock = gst_element_get_clock (GST_ELEMENT (src)); |
| |
| if (clock) { |
| time = gst_clock_get_time (clock); |
| time -= gst_element_get_base_time (GST_ELEMENT (src)); |
| gst_object_unref (clock); |
| } else { |
| /* not an error not to have a clock */ |
| time = GST_CLOCK_TIME_NONE; |
| } |
| } else { |
| time = GST_CLOCK_TIME_NONE; |
| } |
| |
| GST_BUFFER_DTS (buf) = time; |
| GST_BUFFER_PTS (buf) = time; |
| |
| if (!src->silent) { |
| gchar dts_str[64], pts_str[64], dur_str[64]; |
| gchar *flag_str; |
| |
| GST_OBJECT_LOCK (src); |
| g_free (src->last_message); |
| |
| if (GST_BUFFER_DTS (buf) != GST_CLOCK_TIME_NONE) { |
| g_snprintf (dts_str, sizeof (dts_str), "%" GST_TIME_FORMAT, |
| GST_TIME_ARGS (GST_BUFFER_DTS (buf))); |
| } else { |
| g_strlcpy (dts_str, "none", sizeof (dts_str)); |
| } |
| if (GST_BUFFER_PTS (buf) != GST_CLOCK_TIME_NONE) { |
| g_snprintf (pts_str, sizeof (pts_str), "%" GST_TIME_FORMAT, |
| GST_TIME_ARGS (GST_BUFFER_PTS (buf))); |
| } else { |
| g_strlcpy (pts_str, "none", sizeof (pts_str)); |
| } |
| if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE) { |
| g_snprintf (dur_str, sizeof (dur_str), "%" GST_TIME_FORMAT, |
| GST_TIME_ARGS (GST_BUFFER_DURATION (buf))); |
| } else { |
| g_strlcpy (dur_str, "none", sizeof (dur_str)); |
| } |
| |
| flag_str = gst_buffer_get_flags_string (buf); |
| src->last_message = |
| g_strdup_printf ("create ******* (%s:%s) (%u bytes, dts: %s, pts:%s" |
| ", duration: %s, offset: %" G_GINT64_FORMAT ", offset_end: %" |
| G_GINT64_FORMAT ", flags: %08x %s) %p", |
| GST_DEBUG_PAD_NAME (GST_BASE_SRC_CAST (src)->srcpad), (guint) size, |
| dts_str, pts_str, dur_str, GST_BUFFER_OFFSET (buf), |
| GST_BUFFER_OFFSET_END (buf), GST_MINI_OBJECT_CAST (buf)->flags, |
| flag_str, buf); |
| g_free (flag_str); |
| GST_OBJECT_UNLOCK (src); |
| |
| g_object_notify_by_pspec ((GObject *) src, pspec_last_message); |
| } |
| |
| if (src->signal_handoffs) { |
| GST_LOG_OBJECT (src, "pre handoff emit"); |
| g_signal_emit (src, gst_fake_src_signals[SIGNAL_HANDOFF], 0, buf, |
| basesrc->srcpad); |
| GST_LOG_OBJECT (src, "post handoff emit"); |
| } |
| |
| src->bytes_sent += size; |
| |
| *ret = buf; |
| return GST_FLOW_OK; |
| } |
| |
| static gboolean |
| gst_fake_src_start (GstBaseSrc * basesrc) |
| { |
| GstFakeSrc *src; |
| |
| src = GST_FAKE_SRC (basesrc); |
| |
| src->pattern_byte = 0x00; |
| src->bytes_sent = 0; |
| |
| gst_base_src_set_format (basesrc, src->format); |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_fake_src_stop (GstBaseSrc * basesrc) |
| { |
| GstFakeSrc *src; |
| |
| src = GST_FAKE_SRC (basesrc); |
| |
| GST_OBJECT_LOCK (src); |
| if (src->parent) { |
| gst_buffer_unref (src->parent); |
| src->parent = NULL; |
| } |
| g_free (src->last_message); |
| src->last_message = NULL; |
| GST_OBJECT_UNLOCK (src); |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_fake_src_is_seekable (GstBaseSrc * basesrc) |
| { |
| GstFakeSrc *src = GST_FAKE_SRC (basesrc); |
| |
| return src->can_activate_pull; |
| } |