| /* GStreamer H.265 Parser |
| * Copyright (C) 2013 Intel Corporation |
| * Contact:Sreerenj Balachandran <sreerenj.balachandran@intel.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. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include "config.h" |
| #endif |
| |
| #include <gst/base/base.h> |
| #include <gst/pbutils/pbutils.h> |
| #include <gst/video/video.h> |
| #include "gsth265parse.h" |
| |
| #include <string.h> |
| |
| GST_DEBUG_CATEGORY (h265_parse_debug); |
| #define GST_CAT_DEFAULT h265_parse_debug |
| |
| #define DEFAULT_CONFIG_INTERVAL (0) |
| |
| enum |
| { |
| PROP_0, |
| PROP_CONFIG_INTERVAL |
| }; |
| |
| enum |
| { |
| GST_H265_PARSE_FORMAT_NONE, |
| GST_H265_PARSE_FORMAT_HVC1, |
| GST_H265_PARSE_FORMAT_HEV1, |
| GST_H265_PARSE_FORMAT_BYTE |
| }; |
| |
| enum |
| { |
| GST_H265_PARSE_ALIGN_NONE = 0, |
| GST_H265_PARSE_ALIGN_NAL, |
| GST_H265_PARSE_ALIGN_AU |
| }; |
| |
| static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink", |
| GST_PAD_SINK, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS ("video/x-h265")); |
| |
| static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src", |
| GST_PAD_SRC, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS ("video/x-h265, parsed = (boolean) true, " |
| "stream-format=(string) { hvc1, hev1, byte-stream }, " |
| "alignment=(string) { au, nal }")); |
| |
| #define parent_class gst_h265_parse_parent_class |
| G_DEFINE_TYPE (GstH265Parse, gst_h265_parse, GST_TYPE_BASE_PARSE); |
| |
| static void gst_h265_parse_finalize (GObject * object); |
| |
| static gboolean gst_h265_parse_start (GstBaseParse * parse); |
| static gboolean gst_h265_parse_stop (GstBaseParse * parse); |
| static GstFlowReturn gst_h265_parse_handle_frame (GstBaseParse * parse, |
| GstBaseParseFrame * frame, gint * skipsize); |
| static GstFlowReturn gst_h265_parse_parse_frame (GstBaseParse * parse, |
| GstBaseParseFrame * frame); |
| static GstFlowReturn gst_h265_parse_pre_push_frame (GstBaseParse * parse, |
| GstBaseParseFrame * frame); |
| |
| static void gst_h265_parse_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_h265_parse_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| |
| static gboolean gst_h265_parse_set_caps (GstBaseParse * parse, GstCaps * caps); |
| static GstCaps *gst_h265_parse_get_caps (GstBaseParse * parse, |
| GstCaps * filter); |
| static gboolean gst_h265_parse_event (GstBaseParse * parse, GstEvent * event); |
| static gboolean gst_h265_parse_src_event (GstBaseParse * parse, |
| GstEvent * event); |
| |
| static void |
| gst_h265_parse_class_init (GstH265ParseClass * klass) |
| { |
| GObjectClass *gobject_class = (GObjectClass *) klass; |
| GstBaseParseClass *parse_class = GST_BASE_PARSE_CLASS (klass); |
| GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); |
| |
| GST_DEBUG_CATEGORY_INIT (h265_parse_debug, "h265parse", 0, "h265 parser"); |
| |
| gobject_class->finalize = gst_h265_parse_finalize; |
| gobject_class->set_property = gst_h265_parse_set_property; |
| gobject_class->get_property = gst_h265_parse_get_property; |
| |
| g_object_class_install_property (gobject_class, PROP_CONFIG_INTERVAL, |
| g_param_spec_uint ("config-interval", |
| "VPS SPS PPS Send Interval", |
| "Send VPS, SPS and PPS Insertion Interval in seconds (sprop parameter sets " |
| "will be multiplexed in the data stream when detected.) (0 = disabled)", |
| 0, 3600, DEFAULT_CONFIG_INTERVAL, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); |
| /* Override BaseParse vfuncs */ |
| parse_class->start = GST_DEBUG_FUNCPTR (gst_h265_parse_start); |
| parse_class->stop = GST_DEBUG_FUNCPTR (gst_h265_parse_stop); |
| parse_class->handle_frame = GST_DEBUG_FUNCPTR (gst_h265_parse_handle_frame); |
| parse_class->pre_push_frame = |
| GST_DEBUG_FUNCPTR (gst_h265_parse_pre_push_frame); |
| parse_class->set_sink_caps = GST_DEBUG_FUNCPTR (gst_h265_parse_set_caps); |
| parse_class->get_sink_caps = GST_DEBUG_FUNCPTR (gst_h265_parse_get_caps); |
| parse_class->sink_event = GST_DEBUG_FUNCPTR (gst_h265_parse_event); |
| parse_class->src_event = GST_DEBUG_FUNCPTR (gst_h265_parse_src_event); |
| |
| gst_element_class_add_static_pad_template (gstelement_class, &srctemplate); |
| gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate); |
| |
| gst_element_class_set_static_metadata (gstelement_class, "H.265 parser", |
| "Codec/Parser/Converter/Video", |
| "Parses H.265 streams", |
| "Sreerenj Balachandran <sreerenj.balachandran@intel.com>"); |
| } |
| |
| static void |
| gst_h265_parse_init (GstH265Parse * h265parse) |
| { |
| h265parse->frame_out = gst_adapter_new (); |
| gst_base_parse_set_pts_interpolation (GST_BASE_PARSE (h265parse), FALSE); |
| GST_PAD_SET_ACCEPT_INTERSECT (GST_BASE_PARSE_SINK_PAD (h265parse)); |
| GST_PAD_SET_ACCEPT_TEMPLATE (GST_BASE_PARSE_SINK_PAD (h265parse)); |
| } |
| |
| |
| static void |
| gst_h265_parse_finalize (GObject * object) |
| { |
| GstH265Parse *h265parse = GST_H265_PARSE (object); |
| |
| g_object_unref (h265parse->frame_out); |
| |
| G_OBJECT_CLASS (parent_class)->finalize (object); |
| } |
| |
| static void |
| gst_h265_parse_reset_frame (GstH265Parse * h265parse) |
| { |
| GST_DEBUG_OBJECT (h265parse, "reset frame"); |
| |
| /* done parsing; reset state */ |
| h265parse->current_off = -1; |
| |
| h265parse->picture_start = FALSE; |
| h265parse->update_caps = FALSE; |
| h265parse->idr_pos = -1; |
| h265parse->sei_pos = -1; |
| h265parse->keyframe = FALSE; |
| h265parse->header = FALSE; |
| gst_adapter_clear (h265parse->frame_out); |
| } |
| |
| static void |
| gst_h265_parse_reset (GstH265Parse * h265parse) |
| { |
| h265parse->width = 0; |
| h265parse->height = 0; |
| h265parse->fps_num = 0; |
| h265parse->fps_den = 0; |
| h265parse->upstream_par_n = -1; |
| h265parse->upstream_par_d = -1; |
| h265parse->parsed_par_n = 0; |
| h265parse->parsed_par_n = 0; |
| gst_buffer_replace (&h265parse->codec_data, NULL); |
| gst_buffer_replace (&h265parse->codec_data_in, NULL); |
| h265parse->nal_length_size = 4; |
| h265parse->packetized = FALSE; |
| h265parse->transform = FALSE; |
| |
| h265parse->align = GST_H265_PARSE_ALIGN_NONE; |
| h265parse->format = GST_H265_PARSE_FORMAT_NONE; |
| |
| h265parse->last_report = GST_CLOCK_TIME_NONE; |
| h265parse->push_codec = FALSE; |
| h265parse->have_pps = FALSE; |
| h265parse->have_sps = FALSE; |
| h265parse->have_vps = FALSE; |
| |
| h265parse->sent_codec_tag = FALSE; |
| |
| h265parse->pending_key_unit_ts = GST_CLOCK_TIME_NONE; |
| h265parse->force_key_unit_event = NULL; |
| |
| gst_h265_parse_reset_frame (h265parse); |
| } |
| |
| static gboolean |
| gst_h265_parse_start (GstBaseParse * parse) |
| { |
| GstH265Parse *h265parse = GST_H265_PARSE (parse); |
| |
| GST_DEBUG_OBJECT (parse, "start"); |
| gst_h265_parse_reset (h265parse); |
| |
| h265parse->nalparser = gst_h265_parser_new (); |
| |
| gst_base_parse_set_min_frame_size (parse, 7); |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_h265_parse_stop (GstBaseParse * parse) |
| { |
| guint i; |
| GstH265Parse *h265parse = GST_H265_PARSE (parse); |
| |
| GST_DEBUG_OBJECT (parse, "stop"); |
| gst_h265_parse_reset (h265parse); |
| |
| for (i = 0; i < GST_H265_MAX_VPS_COUNT; i++) |
| gst_buffer_replace (&h265parse->vps_nals[i], NULL); |
| for (i = 0; i < GST_H265_MAX_SPS_COUNT; i++) |
| gst_buffer_replace (&h265parse->sps_nals[i], NULL); |
| for (i = 0; i < GST_H265_MAX_PPS_COUNT; i++) |
| gst_buffer_replace (&h265parse->pps_nals[i], NULL); |
| |
| gst_h265_parser_free (h265parse->nalparser); |
| |
| return TRUE; |
| } |
| |
| static const gchar * |
| gst_h265_parse_get_string (GstH265Parse * parse, gboolean format, gint code) |
| { |
| if (format) { |
| switch (code) { |
| case GST_H265_PARSE_FORMAT_HVC1: |
| return "hvc1"; |
| case GST_H265_PARSE_FORMAT_HEV1: |
| return "hev1"; |
| case GST_H265_PARSE_FORMAT_BYTE: |
| return "byte-stream"; |
| default: |
| return "none"; |
| } |
| } else { |
| switch (code) { |
| case GST_H265_PARSE_ALIGN_NAL: |
| return "nal"; |
| case GST_H265_PARSE_ALIGN_AU: |
| return "au"; |
| default: |
| return "none"; |
| } |
| } |
| } |
| |
| static void |
| gst_h265_parse_format_from_caps (GstCaps * caps, guint * format, guint * align) |
| { |
| g_return_if_fail (gst_caps_is_fixed (caps)); |
| |
| GST_DEBUG ("parsing caps: %" GST_PTR_FORMAT, caps); |
| |
| if (format) |
| *format = GST_H265_PARSE_FORMAT_NONE; |
| |
| if (align) |
| *align = GST_H265_PARSE_ALIGN_NONE; |
| |
| if (caps && gst_caps_get_size (caps) > 0) { |
| GstStructure *s = gst_caps_get_structure (caps, 0); |
| const gchar *str = NULL; |
| |
| if (format) { |
| if ((str = gst_structure_get_string (s, "stream-format"))) { |
| if (strcmp (str, "hvc1") == 0) |
| *format = GST_H265_PARSE_FORMAT_HVC1; |
| else if (strcmp (str, "hev1") == 0) |
| *format = GST_H265_PARSE_FORMAT_HEV1; |
| else if (strcmp (str, "byte-stream") == 0) |
| *format = GST_H265_PARSE_FORMAT_BYTE; |
| } |
| } |
| |
| if (align) { |
| if ((str = gst_structure_get_string (s, "alignment"))) { |
| if (strcmp (str, "au") == 0) |
| *align = GST_H265_PARSE_ALIGN_AU; |
| else if (strcmp (str, "nal") == 0) |
| *align = GST_H265_PARSE_ALIGN_NAL; |
| } |
| } |
| } |
| } |
| |
| /* check downstream caps to configure format and alignment */ |
| static void |
| gst_h265_parse_negotiate (GstH265Parse * h265parse, gint in_format, |
| GstCaps * in_caps) |
| { |
| GstCaps *caps; |
| guint format = GST_H265_PARSE_FORMAT_NONE; |
| guint align = GST_H265_PARSE_ALIGN_NONE; |
| |
| g_return_if_fail ((in_caps == NULL) || gst_caps_is_fixed (in_caps)); |
| |
| caps = gst_pad_get_allowed_caps (GST_BASE_PARSE_SRC_PAD (h265parse)); |
| GST_DEBUG_OBJECT (h265parse, "allowed caps: %" GST_PTR_FORMAT, caps); |
| |
| /* concentrate on leading structure, since decodebin parser |
| * capsfilter always includes parser template caps */ |
| if (caps) { |
| caps = gst_caps_truncate (caps); |
| GST_DEBUG_OBJECT (h265parse, "negotiating with caps: %" GST_PTR_FORMAT, |
| caps); |
| } |
| |
| if (in_caps && caps) { |
| if (gst_caps_can_intersect (in_caps, caps)) { |
| GST_DEBUG_OBJECT (h265parse, "downstream accepts upstream caps"); |
| gst_h265_parse_format_from_caps (in_caps, &format, &align); |
| gst_caps_unref (caps); |
| caps = NULL; |
| } |
| } |
| |
| /* FIXME We could fail the negotiation immediatly if caps are empty */ |
| if (caps && !gst_caps_is_empty (caps)) { |
| /* fixate to avoid ambiguity with lists when parsing */ |
| caps = gst_caps_fixate (caps); |
| gst_h265_parse_format_from_caps (caps, &format, &align); |
| } |
| |
| /* default */ |
| if (!format) |
| format = GST_H265_PARSE_FORMAT_BYTE; |
| if (!align) |
| align = GST_H265_PARSE_ALIGN_AU; |
| |
| GST_DEBUG_OBJECT (h265parse, "selected format %s, alignment %s", |
| gst_h265_parse_get_string (h265parse, TRUE, format), |
| gst_h265_parse_get_string (h265parse, FALSE, align)); |
| |
| h265parse->format = format; |
| h265parse->align = align; |
| |
| h265parse->transform = (in_format != h265parse->format); |
| |
| if (caps) |
| gst_caps_unref (caps); |
| } |
| |
| static GstBuffer * |
| gst_h265_parse_wrap_nal (GstH265Parse * h265parse, guint format, guint8 * data, |
| guint size) |
| { |
| GstBuffer *buf; |
| guint nl = h265parse->nal_length_size; |
| guint32 tmp; |
| |
| GST_DEBUG_OBJECT (h265parse, "nal length %d", size); |
| |
| buf = gst_buffer_new_allocate (NULL, 4 + size, NULL); |
| if (format == GST_H265_PARSE_FORMAT_HVC1 |
| || format == GST_H265_PARSE_FORMAT_HEV1) { |
| tmp = GUINT32_TO_BE (size << (32 - 8 * nl)); |
| } else { |
| /* HACK: nl should always be 4 here, otherwise this won't work. |
| * There are legit cases where nl in hevc stream is 2, but byte-stream |
| * SC is still always 4 bytes. */ |
| nl = 4; |
| tmp = GUINT32_TO_BE (1); |
| } |
| |
| gst_buffer_fill (buf, 0, &tmp, sizeof (guint32)); |
| gst_buffer_fill (buf, nl, data, size); |
| gst_buffer_set_size (buf, size + nl); |
| |
| return buf; |
| } |
| |
| static void |
| gst_h265_parser_store_nal (GstH265Parse * h265parse, guint id, |
| GstH265NalUnitType naltype, GstH265NalUnit * nalu) |
| { |
| GstBuffer *buf, **store; |
| guint size = nalu->size, store_size; |
| |
| if (naltype == GST_H265_NAL_VPS) { |
| store_size = GST_H265_MAX_VPS_COUNT; |
| store = h265parse->vps_nals; |
| GST_DEBUG_OBJECT (h265parse, "storing vps %u", id); |
| } else if (naltype == GST_H265_NAL_SPS) { |
| store_size = GST_H265_MAX_SPS_COUNT; |
| store = h265parse->sps_nals; |
| GST_DEBUG_OBJECT (h265parse, "storing sps %u", id); |
| } else if (naltype == GST_H265_NAL_PPS) { |
| store_size = GST_H265_MAX_PPS_COUNT; |
| store = h265parse->pps_nals; |
| GST_DEBUG_OBJECT (h265parse, "storing pps %u", id); |
| } else |
| return; |
| |
| if (id >= store_size) { |
| GST_DEBUG_OBJECT (h265parse, "unable to store nal, id out-of-range %d", id); |
| return; |
| } |
| |
| buf = gst_buffer_new_allocate (NULL, size, NULL); |
| gst_buffer_fill (buf, 0, nalu->data + nalu->offset, size); |
| |
| /* Indicate that buffer contain a header needed for decoding */ |
| if (naltype >= GST_H265_NAL_VPS && naltype <= GST_H265_NAL_PPS) |
| GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER); |
| |
| if (store[id]) |
| gst_buffer_unref (store[id]); |
| |
| store[id] = buf; |
| } |
| |
| #ifndef GST_DISABLE_GST_DEBUG |
| static const gchar *nal_names[] = { |
| "Slice_TRAIL_N", |
| "Slice_TRAIL_R", |
| "Slice_TSA_N", |
| "Slice_TSA_R", |
| "Slice_STSA_N", |
| "Slice_STSA_R", |
| "Slice_RADL_N", |
| "Slice_RADL_R", |
| "SLICE_RASL_N", |
| "SLICE_RASL_R", |
| "Invalid (10)", |
| "Invalid (11)", |
| "Invalid (12)", |
| "Invalid (13)", |
| "Invalid (14)", |
| "Invalid (15)", |
| "SLICE_BLA_W_LP", |
| "SLICE_BLA_W_RADL", |
| "SLICE_BLA_N_LP", |
| "SLICE_IDR_W_RADL", |
| "SLICE_IDR_N_LP", |
| "SLICE_CRA_NUT", |
| "Invalid (22)", |
| "Invalid (23)", |
| "Invalid (24)", |
| "Invalid (25)", |
| "Invalid (26)", |
| "Invalid (27)", |
| "Invalid (28)", |
| "Invalid (29)", |
| "Invalid (30)", |
| "Invalid (31)", |
| "VPS", |
| "SPS", |
| "PPS", |
| "AUD", |
| "EOS", |
| "EOB", |
| "FD", |
| "PREFIX_SEI", |
| "SUFFIX_SEI" |
| }; |
| |
| static const gchar * |
| _nal_name (GstH265NalUnitType nal_type) |
| { |
| if (nal_type <= GST_H265_NAL_SUFFIX_SEI) |
| return nal_names[nal_type]; |
| return "Invalid"; |
| } |
| #endif |
| |
| /* caller guarantees 2 bytes of nal payload */ |
| static void |
| gst_h265_parse_process_nal (GstH265Parse * h265parse, GstH265NalUnit * nalu) |
| { |
| GstH265PPS pps = { 0, }; |
| GstH265SPS sps = { 0, }; |
| GstH265VPS vps = { 0, }; |
| gboolean is_irap; |
| guint nal_type; |
| GstH265Parser *nalparser = h265parse->nalparser; |
| GstH265ParserResult pres = GST_H265_PARSER_ERROR; |
| |
| /* nothing to do for broken input */ |
| if (G_UNLIKELY (nalu->size < 2)) { |
| GST_DEBUG_OBJECT (h265parse, "not processing nal size %u", nalu->size); |
| return; |
| } |
| |
| /* we have a peek as well */ |
| nal_type = nalu->type; |
| |
| GST_DEBUG_OBJECT (h265parse, "processing nal of type %u %s, size %u", |
| nal_type, _nal_name (nal_type), nalu->size); |
| switch (nal_type) { |
| case GST_H265_NAL_VPS: |
| /* It is not mandatory to have VPS in the stream. But it might |
| * be needed for other extensions like svc */ |
| pres = gst_h265_parser_parse_vps (nalparser, nalu, &vps); |
| if (pres != GST_H265_PARSER_OK) |
| GST_WARNING_OBJECT (h265parse, "failed to parse VPS"); |
| |
| GST_DEBUG_OBJECT (h265parse, "triggering src caps check"); |
| h265parse->update_caps = TRUE; |
| h265parse->have_vps = TRUE; |
| if (h265parse->push_codec && h265parse->have_pps) { |
| /* VPS/SPS/PPS found in stream before the first pre_push_frame, no need |
| * to forcibly push at start */ |
| GST_INFO_OBJECT (h265parse, "have VPS/SPS/PPS in stream"); |
| h265parse->push_codec = FALSE; |
| h265parse->have_vps = FALSE; |
| h265parse->have_sps = FALSE; |
| h265parse->have_pps = FALSE; |
| } |
| |
| gst_h265_parser_store_nal (h265parse, vps.id, nal_type, nalu); |
| h265parse->header |= TRUE; |
| break; |
| case GST_H265_NAL_SPS: |
| pres = gst_h265_parser_parse_sps (nalparser, nalu, &sps, TRUE); |
| |
| |
| /* arranged for a fallback sps.id, so use that one and only warn */ |
| if (pres != GST_H265_PARSER_OK) |
| GST_WARNING_OBJECT (h265parse, "failed to parse SPS:"); |
| |
| GST_DEBUG_OBJECT (h265parse, "triggering src caps check"); |
| h265parse->update_caps = TRUE; |
| h265parse->have_sps = TRUE; |
| if (h265parse->push_codec && h265parse->have_pps) { |
| /* SPS and PPS found in stream before the first pre_push_frame, no need |
| * to forcibly push at start */ |
| GST_INFO_OBJECT (h265parse, "have SPS/PPS in stream"); |
| h265parse->push_codec = FALSE; |
| h265parse->have_sps = FALSE; |
| h265parse->have_pps = FALSE; |
| } |
| |
| gst_h265_parser_store_nal (h265parse, sps.id, nal_type, nalu); |
| h265parse->header |= TRUE; |
| break; |
| case GST_H265_NAL_PPS: |
| pres = gst_h265_parser_parse_pps (nalparser, nalu, &pps); |
| |
| |
| /* arranged for a fallback pps.id, so use that one and only warn */ |
| if (pres != GST_H265_PARSER_OK) |
| GST_WARNING_OBJECT (h265parse, "failed to parse PPS:"); |
| |
| /* parameters might have changed, force caps check */ |
| if (!h265parse->have_pps) { |
| GST_DEBUG_OBJECT (h265parse, "triggering src caps check"); |
| h265parse->update_caps = TRUE; |
| } |
| h265parse->have_pps = TRUE; |
| if (h265parse->push_codec && h265parse->have_sps) { |
| /* SPS and PPS found in stream before the first pre_push_frame, no need |
| * to forcibly push at start */ |
| GST_INFO_OBJECT (h265parse, "have SPS/PPS in stream"); |
| h265parse->push_codec = FALSE; |
| h265parse->have_sps = FALSE; |
| h265parse->have_pps = FALSE; |
| } |
| |
| gst_h265_parser_store_nal (h265parse, pps.id, nal_type, nalu); |
| h265parse->header |= TRUE; |
| break; |
| case GST_H265_NAL_PREFIX_SEI: |
| case GST_H265_NAL_SUFFIX_SEI: |
| /*Fixme: parse sei messages */ |
| /* mark SEI pos */ |
| if (h265parse->sei_pos == -1) { |
| if (h265parse->transform) |
| h265parse->sei_pos = gst_adapter_available (h265parse->frame_out); |
| else |
| h265parse->sei_pos = nalu->sc_offset; |
| GST_DEBUG_OBJECT (h265parse, "marking SEI in frame at offset %d", |
| h265parse->sei_pos); |
| } |
| break; |
| |
| case GST_H265_NAL_SLICE_TRAIL_N: |
| case GST_H265_NAL_SLICE_TRAIL_R: |
| case GST_H265_NAL_SLICE_TSA_N: |
| case GST_H265_NAL_SLICE_TSA_R: |
| case GST_H265_NAL_SLICE_STSA_N: |
| case GST_H265_NAL_SLICE_STSA_R: |
| case GST_H265_NAL_SLICE_RADL_N: |
| case GST_H265_NAL_SLICE_RADL_R: |
| case GST_H265_NAL_SLICE_RASL_N: |
| case GST_H265_NAL_SLICE_RASL_R: |
| case GST_H265_NAL_SLICE_BLA_W_LP: |
| case GST_H265_NAL_SLICE_BLA_W_RADL: |
| case GST_H265_NAL_SLICE_BLA_N_LP: |
| case GST_H265_NAL_SLICE_IDR_W_RADL: |
| case GST_H265_NAL_SLICE_IDR_N_LP: |
| case GST_H265_NAL_SLICE_CRA_NUT: |
| { |
| GstH265SliceHdr slice; |
| |
| pres = gst_h265_parser_parse_slice_hdr (nalparser, nalu, &slice); |
| |
| if (pres == GST_H265_PARSER_OK) { |
| if (GST_H265_IS_I_SLICE (&slice)) |
| h265parse->keyframe |= TRUE; |
| } |
| if (slice.first_slice_segment_in_pic_flag == 1) |
| GST_DEBUG_OBJECT (h265parse, |
| "frame start, first_slice_segment_in_pic_flag = 1"); |
| |
| GST_DEBUG_OBJECT (h265parse, |
| "parse result %d, first slice_segment: %u, slice type: %u", |
| pres, slice.first_slice_segment_in_pic_flag, slice.type); |
| |
| gst_h265_slice_hdr_free (&slice); |
| } |
| |
| is_irap = ((nal_type >= GST_H265_NAL_SLICE_BLA_W_LP) |
| && (nal_type <= GST_H265_NAL_SLICE_CRA_NUT)) ? TRUE : FALSE; |
| if (G_LIKELY (!is_irap && !h265parse->push_codec)) |
| break; |
| |
| /* if we need to sneak codec NALs into the stream, |
| * this is a good place, so fake it as IDR |
| * (which should be at start anyway) */ |
| /* mark where config needs to go if interval expired */ |
| /* mind replacement buffer if applicable */ |
| if (h265parse->idr_pos == -1) { |
| if (h265parse->transform) |
| h265parse->idr_pos = gst_adapter_available (h265parse->frame_out); |
| else |
| h265parse->idr_pos = nalu->sc_offset; |
| GST_DEBUG_OBJECT (h265parse, "marking IDR in frame at offset %d", |
| h265parse->idr_pos); |
| } |
| /* if SEI preceeds (faked) IDR, then we have to insert config there */ |
| if (h265parse->sei_pos >= 0 && h265parse->idr_pos > h265parse->sei_pos) { |
| h265parse->idr_pos = h265parse->sei_pos; |
| GST_DEBUG_OBJECT (h265parse, "moved IDR mark to SEI position %d", |
| h265parse->idr_pos); |
| } |
| break; |
| default: |
| gst_h265_parser_parse_nal (nalparser, nalu); |
| } |
| |
| /* if HEVC output needed, collect properly prefixed nal in adapter, |
| * and use that to replace outgoing buffer data later on */ |
| if (h265parse->transform) { |
| GstBuffer *buf; |
| |
| GST_LOG_OBJECT (h265parse, "collecting NAL in HEVC frame"); |
| buf = gst_h265_parse_wrap_nal (h265parse, h265parse->format, |
| nalu->data + nalu->offset, nalu->size); |
| gst_adapter_push (h265parse->frame_out, buf); |
| } |
| } |
| |
| /* caller guarantees at least 3 bytes of nal payload for each nal |
| * returns TRUE if next_nal indicates that nal terminates an AU */ |
| static inline gboolean |
| gst_h265_parse_collect_nal (GstH265Parse * h265parse, const guint8 * data, |
| guint size, GstH265NalUnit * nalu) |
| { |
| gboolean complete; |
| GstH265ParserResult parse_res; |
| GstH265NalUnitType nal_type = nalu->type; |
| GstH265NalUnit nnalu; |
| |
| GST_DEBUG_OBJECT (h265parse, "parsing collected nal"); |
| parse_res = gst_h265_parser_identify_nalu (h265parse->nalparser, data, |
| nalu->offset + nalu->size, size, &nnalu); |
| |
| if (parse_res == GST_H265_PARSER_ERROR) |
| return FALSE; |
| |
| /* determine if AU complete */ |
| GST_LOG_OBJECT (h265parse, "nal type: %d %s", nal_type, _nal_name (nal_type)); |
| /* coded slice NAL starts a picture, |
| * i.e. other types become aggregated in front of it */ |
| h265parse->picture_start |= ((nal_type >= GST_H265_NAL_SLICE_TRAIL_N |
| && nal_type <= GST_H265_NAL_SLICE_RASL_R) |
| || (nal_type >= GST_H265_NAL_SLICE_BLA_W_LP |
| && nal_type <= RESERVED_IRAP_NAL_TYPE_MAX)); |
| |
| /* consider a coded slices (IRAP or not) to start a picture, |
| * (so ending the previous one) if first_slice_segment_in_pic_flag == 1*/ |
| nal_type = nnalu.type; |
| complete = h265parse->picture_start && ((nal_type >= GST_H265_NAL_VPS |
| && nal_type <= GST_H265_NAL_AUD) |
| || nal_type == GST_H265_NAL_PREFIX_SEI || (nal_type >= 41 |
| && nal_type <= 44) || (nal_type >= 48 && nal_type <= 55)); |
| |
| GST_LOG_OBJECT (h265parse, "next nal type: %d %s", nal_type, |
| _nal_name (nal_type)); |
| |
| /* Any VCL Nal unit with first_slice_segment_in_pic_flag == 1 considered start of frame */ |
| complete |= h265parse->picture_start |
| && (((nal_type >= GST_H265_NAL_SLICE_TRAIL_N |
| && nal_type <= GST_H265_NAL_SLICE_RASL_R) |
| || (nal_type >= GST_H265_NAL_SLICE_BLA_W_LP |
| && nal_type <= RESERVED_IRAP_NAL_TYPE_MAX)) |
| && (nnalu.data[nnalu.offset + 2] & 0x80)); |
| |
| GST_LOG_OBJECT (h265parse, "au complete: %d", complete); |
| return complete; |
| } |
| |
| static GstFlowReturn |
| gst_h265_parse_handle_frame_packetized (GstBaseParse * parse, |
| GstBaseParseFrame * frame) |
| { |
| GstH265Parse *h265parse = GST_H265_PARSE (parse); |
| GstBuffer *buffer = frame->buffer; |
| GstFlowReturn ret = GST_FLOW_OK; |
| GstH265ParserResult parse_res; |
| GstH265NalUnit nalu; |
| const guint nl = h265parse->nal_length_size; |
| GstMapInfo map; |
| gint left; |
| |
| if (nl < 1 || nl > 4) { |
| GST_DEBUG_OBJECT (h265parse, "insufficient data to split input"); |
| return GST_FLOW_NOT_NEGOTIATED; |
| } |
| |
| /* need to save buffer from invalidation upon _finish_frame */ |
| if (h265parse->split_packetized) |
| buffer = gst_buffer_copy (frame->buffer); |
| |
| gst_buffer_map (buffer, &map, GST_MAP_READ); |
| |
| left = map.size; |
| |
| GST_LOG_OBJECT (h265parse, |
| "processing packet buffer of size %" G_GSIZE_FORMAT, map.size); |
| |
| parse_res = gst_h265_parser_identify_nalu_hevc (h265parse->nalparser, |
| map.data, 0, map.size, nl, &nalu); |
| |
| while (parse_res == GST_H265_PARSER_OK) { |
| GST_DEBUG_OBJECT (h265parse, "HEVC nal offset %d", nalu.offset + nalu.size); |
| |
| /* either way, have a look at it */ |
| gst_h265_parse_process_nal (h265parse, &nalu); |
| |
| /* dispatch per NALU if needed */ |
| if (h265parse->split_packetized) { |
| GstBaseParseFrame tmp_frame; |
| |
| gst_base_parse_frame_init (&tmp_frame); |
| tmp_frame.flags |= frame->flags; |
| tmp_frame.offset = frame->offset; |
| tmp_frame.overhead = frame->overhead; |
| tmp_frame.buffer = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, |
| nalu.offset, nalu.size); |
| |
| /* note we don't need to come up with a sub-buffer, since |
| * subsequent code only considers input buffer's metadata. |
| * Real data is either taken from input by baseclass or |
| * a replacement output buffer is provided anyway. */ |
| gst_h265_parse_parse_frame (parse, &tmp_frame); |
| ret = gst_base_parse_finish_frame (parse, &tmp_frame, nl + nalu.size); |
| left -= nl + nalu.size; |
| } |
| |
| parse_res = gst_h265_parser_identify_nalu_hevc (h265parse->nalparser, |
| map.data, nalu.offset + nalu.size, map.size, nl, &nalu); |
| } |
| |
| gst_buffer_unmap (buffer, &map); |
| |
| if (!h265parse->split_packetized) { |
| gst_h265_parse_parse_frame (parse, frame); |
| ret = gst_base_parse_finish_frame (parse, frame, map.size); |
| } else { |
| gst_buffer_unref (buffer); |
| if (G_UNLIKELY (left)) { |
| /* should not be happening for nice HEVC */ |
| GST_WARNING_OBJECT (parse, "skipping leftover HEVC data %d", left); |
| frame->flags |= GST_BASE_PARSE_FRAME_FLAG_DROP; |
| ret = gst_base_parse_finish_frame (parse, frame, map.size); |
| } |
| } |
| |
| if (parse_res == GST_H265_PARSER_NO_NAL_END || |
| parse_res == GST_H265_PARSER_BROKEN_DATA) { |
| |
| if (h265parse->split_packetized) { |
| GST_ELEMENT_ERROR (h265parse, STREAM, FAILED, (NULL), |
| ("invalid HEVC input data")); |
| gst_buffer_unref (buffer); |
| |
| return GST_FLOW_ERROR; |
| } else { |
| /* do not meddle to much in this case */ |
| GST_DEBUG_OBJECT (h265parse, "parsing packet failed"); |
| } |
| } |
| |
| return ret; |
| } |
| |
| static GstFlowReturn |
| gst_h265_parse_handle_frame (GstBaseParse * parse, |
| GstBaseParseFrame * frame, gint * skipsize) |
| { |
| GstH265Parse *h265parse = GST_H265_PARSE (parse); |
| GstBuffer *buffer = frame->buffer; |
| GstMapInfo map; |
| guint8 *data; |
| gsize size; |
| gint current_off = 0; |
| gboolean drain, nonext; |
| GstH265Parser *nalparser = h265parse->nalparser; |
| GstH265NalUnit nalu; |
| GstH265ParserResult pres; |
| gint framesize; |
| |
| /* delegate in packetized case, no skipping should be needed */ |
| if (h265parse->packetized) |
| return gst_h265_parse_handle_frame_packetized (parse, frame); |
| |
| gst_buffer_map (buffer, &map, GST_MAP_READ); |
| data = map.data; |
| size = map.size; |
| |
| /* expect at least 3 bytes startcode == sc, and 3 bytes NALU payload */ |
| if (G_UNLIKELY (size < 6)) { |
| gst_buffer_unmap (buffer, &map); |
| *skipsize = 1; |
| return GST_FLOW_OK; |
| } |
| |
| /* need to configure aggregation */ |
| if (G_UNLIKELY (h265parse->format == GST_H265_PARSE_FORMAT_NONE)) |
| gst_h265_parse_negotiate (h265parse, GST_H265_PARSE_FORMAT_BYTE, NULL); |
| |
| /* avoid stale cached parsing state */ |
| if (frame->flags & GST_BASE_PARSE_FRAME_FLAG_NEW_FRAME) { |
| GST_LOG_OBJECT (h265parse, "parsing new frame"); |
| gst_h265_parse_reset_frame (h265parse); |
| } else { |
| GST_LOG_OBJECT (h265parse, "resuming frame parsing"); |
| } |
| |
| drain = GST_BASE_PARSE_DRAINING (parse); |
| nonext = FALSE; |
| |
| current_off = h265parse->current_off; |
| if (current_off < 0) |
| current_off = 0; |
| g_assert (current_off < size); |
| GST_DEBUG_OBJECT (h265parse, "last parse position %d", current_off); |
| |
| /* check for initial skip */ |
| if (h265parse->current_off == -1) { |
| pres = |
| gst_h265_parser_identify_nalu_unchecked (nalparser, data, current_off, |
| size, &nalu); |
| switch (pres) { |
| case GST_H265_PARSER_OK: |
| if (nalu.sc_offset > 0) { |
| *skipsize = nalu.sc_offset; |
| goto skip; |
| } |
| break; |
| case GST_H265_PARSER_NO_NAL: |
| *skipsize = size - 3; |
| goto skip; |
| default: |
| /* should not really occur either */ |
| GST_ELEMENT_ERROR (h265parse, STREAM, FORMAT, |
| ("Error parsing H.265 stream"), ("Invalid H.265 stream")); |
| goto invalid_stream; |
| } |
| } |
| |
| while (TRUE) { |
| pres = |
| gst_h265_parser_identify_nalu (nalparser, data, current_off, size, |
| &nalu); |
| |
| switch (pres) { |
| case GST_H265_PARSER_OK: |
| GST_DEBUG_OBJECT (h265parse, "complete nal (offset, size): (%u, %u) ", |
| nalu.offset, nalu.size); |
| break; |
| case GST_H265_PARSER_NO_NAL_END: |
| GST_DEBUG_OBJECT (h265parse, "not a complete nal found at offset %u", |
| nalu.offset); |
| /* if draining, accept it as complete nal */ |
| if (drain) { |
| nonext = TRUE; |
| nalu.size = size - nalu.offset; |
| GST_DEBUG_OBJECT (h265parse, "draining, accepting with size %u", |
| nalu.size); |
| /* if it's not too short at least */ |
| if (nalu.size < 3) |
| goto broken; |
| break; |
| } |
| /* otherwise need more */ |
| goto more; |
| case GST_H265_PARSER_BROKEN_LINK: |
| GST_ELEMENT_ERROR (h265parse, STREAM, FORMAT, |
| ("Error parsing H.265 stream"), |
| ("The link to structure needed for the parsing couldn't be found")); |
| goto invalid_stream; |
| case GST_H265_PARSER_ERROR: |
| /* should not really occur either */ |
| GST_ELEMENT_ERROR (h265parse, STREAM, FORMAT, |
| ("Error parsing H.265 stream"), ("Invalid H.265 stream")); |
| goto invalid_stream; |
| case GST_H265_PARSER_NO_NAL: |
| GST_ELEMENT_ERROR (h265parse, STREAM, FORMAT, |
| ("Error parsing H.265 stream"), ("No H.265 NAL unit found")); |
| goto invalid_stream; |
| case GST_H265_PARSER_BROKEN_DATA: |
| GST_WARNING_OBJECT (h265parse, "input stream is corrupt; " |
| "it contains a NAL unit of length %u", nalu.size); |
| broken: |
| /* broken nal at start -> arrange to skip it, |
| * otherwise have it terminate current au |
| * (and so it will be skipped on next frame round) */ |
| if (current_off == 0) { |
| GST_DEBUG_OBJECT (h265parse, "skipping broken nal"); |
| *skipsize = nalu.offset; |
| goto skip; |
| } else { |
| GST_DEBUG_OBJECT (h265parse, "terminating au"); |
| nalu.size = 0; |
| nalu.offset = nalu.sc_offset; |
| goto end; |
| } |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| |
| GST_DEBUG_OBJECT (h265parse, "%p complete nal found. Off: %u, Size: %u", |
| data, nalu.offset, nalu.size); |
| |
| /* simulate no next nal if none needed */ |
| nonext = nonext || (h265parse->align == GST_H265_PARSE_ALIGN_NAL); |
| |
| if (!nonext) { |
| if (nalu.offset + nalu.size + 5 + 2 > size) { |
| GST_DEBUG_OBJECT (h265parse, "not enough data for next NALU"); |
| if (drain) { |
| GST_DEBUG_OBJECT (h265parse, "but draining anyway"); |
| nonext = TRUE; |
| } else { |
| goto more; |
| } |
| } |
| } |
| |
| if (nalu.type == GST_H265_NAL_VPS || |
| nalu.type == GST_H265_NAL_SPS || |
| nalu.type == GST_H265_NAL_PPS || |
| (h265parse->have_sps && h265parse->have_pps)) { |
| gst_h265_parse_process_nal (h265parse, &nalu); |
| } else { |
| GST_WARNING_OBJECT (h265parse, |
| "no SPS/PPS yet, nal Type: %d %s, Size: %u will be dropped", |
| nalu.type, _nal_name (nalu.type), nalu.size); |
| *skipsize = nalu.size; |
| goto skip; |
| } |
| |
| if (nonext) |
| break; |
| |
| /* if no next nal, we know it's complete here */ |
| if (gst_h265_parse_collect_nal (h265parse, data, size, &nalu)) |
| break; |
| |
| GST_DEBUG_OBJECT (h265parse, "Looking for more"); |
| current_off = nalu.offset + nalu.size; |
| } |
| |
| end: |
| framesize = nalu.offset + nalu.size; |
| |
| gst_buffer_unmap (buffer, &map); |
| |
| gst_h265_parse_parse_frame (parse, frame); |
| |
| return gst_base_parse_finish_frame (parse, frame, framesize); |
| |
| more: |
| *skipsize = 0; |
| |
| /* Restart parsing from here next time */ |
| if (current_off > 0) |
| h265parse->current_off = current_off; |
| |
| /* Fall-through. */ |
| out: |
| gst_buffer_unmap (buffer, &map); |
| return GST_FLOW_OK; |
| |
| skip: |
| GST_DEBUG_OBJECT (h265parse, "skipping %d", *skipsize); |
| gst_h265_parse_reset_frame (h265parse); |
| goto out; |
| |
| invalid_stream: |
| gst_buffer_unmap (buffer, &map); |
| return GST_FLOW_ERROR; |
| } |
| |
| /* byte together hevc codec data based on collected pps and sps so far */ |
| static GstBuffer * |
| gst_h265_parse_make_codec_data (GstH265Parse * h265parse) |
| { |
| GstBuffer *buf, *nal; |
| gint i, j, k = 0; |
| guint vps_size = 0, sps_size = 0, pps_size = 0; |
| guint num_vps = 0, num_sps = 0, num_pps = 0; |
| gboolean found = FALSE; |
| GstMapInfo map; |
| guint8 *data; |
| gint nl; |
| guint8 num_arrays = 0; |
| GstH265SPS *sps = NULL; |
| guint16 min_spatial_segmentation_idc = 0; |
| GstH265ProfileTierLevel *pft; |
| |
| /* only nal payload in stored nals */ |
| /* Fixme: Current implementation is not embedding SEI in codec_data */ |
| for (i = 0; i < GST_H265_MAX_VPS_COUNT; i++) { |
| if ((nal = h265parse->vps_nals[i])) { |
| num_vps++; |
| /* size bytes also count */ |
| vps_size += gst_buffer_get_size (nal) + 2; |
| } |
| } |
| if (num_vps > 0) |
| num_arrays++; |
| |
| for (i = 0; i < GST_H265_MAX_SPS_COUNT; i++) { |
| if ((nal = h265parse->sps_nals[i])) { |
| num_sps++; |
| /* size bytes also count */ |
| sps_size += gst_buffer_get_size (nal) + 2; |
| found = TRUE; |
| } |
| } |
| if (num_sps > 0) |
| num_arrays++; |
| |
| for (i = 0; i < GST_H265_MAX_PPS_COUNT; i++) { |
| if ((nal = h265parse->pps_nals[i])) { |
| num_pps++; |
| /* size bytes also count */ |
| pps_size += gst_buffer_get_size (nal) + 2; |
| } |
| } |
| if (num_pps > 0) |
| num_arrays++; |
| |
| GST_DEBUG_OBJECT (h265parse, |
| "constructing codec_data: num_vps =%d num_sps=%d, num_pps=%d", num_vps, |
| num_sps, num_pps); |
| |
| if (!found) |
| return NULL; |
| |
| sps = h265parse->nalparser->last_sps; |
| if (!sps) |
| return NULL; |
| |
| buf = |
| gst_buffer_new_allocate (NULL, |
| 23 + (3 * num_arrays) + vps_size + sps_size + pps_size, NULL); |
| gst_buffer_map (buf, &map, GST_MAP_WRITE); |
| data = map.data; |
| memset (data, 0, map.size); |
| nl = h265parse->nal_length_size; |
| |
| pft = &sps->profile_tier_level; |
| if (sps->vui_parameters_present_flag) |
| min_spatial_segmentation_idc = sps->vui_params.min_spatial_segmentation_idc; |
| |
| /* HEVCDecoderConfigurationVersion = 1 |
| * profile_space | tier_flat | profile_idc | |
| * profile_compatibility_flags | constraint_indicator_flags | |
| * level_idc */ |
| data[0] = 1; |
| data[1] = |
| (pft->profile_space << 5) | (pft->tier_flag << 5) | pft->profile_idc; |
| for (i = 2; i < 6; i++) { |
| for (j = 7; j >= 0; j--) { |
| data[i] |= (pft->profile_compatibility_flag[k] << j); |
| k++; |
| } |
| } |
| data[6] |= |
| (pft->progressive_source_flag << 7) | (pft->interlaced_source_flag << 6) | |
| (pft->non_packed_constraint_flag << 5) | (pft-> |
| frame_only_constraint_flag << 4); |
| data[12] = pft->level_idc; |
| /* min_spatial_segmentation_idc */ |
| GST_WRITE_UINT16_BE (data + 13, min_spatial_segmentation_idc); |
| data[13] |= 0xf0; |
| data[15] = 0xfc; /* keeping parrallelismType as zero (unknown) */ |
| data[16] = 0xfc | sps->chroma_format_idc; |
| data[17] = 0xf8 | sps->bit_depth_luma_minus8; |
| data[18] = 0xf8 | sps->bit_depth_chroma_minus8; |
| data[19] = 0x00; /* keep avgFrameRate as unspecified */ |
| data[20] = 0x00; /* keep avgFrameRate as unspecified */ |
| /* constFrameRate(2 bits): 0, stream may or may not be of constant framerate |
| * numTemporalLayers (3 bits): number of temporal layers, value from SPS |
| * TemporalIdNested (1 bit): sps_temporal_id_nesting_flag from SPS |
| * lengthSizeMinusOne (2 bits): plus 1 indicates the length of the NALUnitLength */ |
| data[21] = |
| 0x00 | ((sps->max_sub_layers_minus1 + |
| 1) << 3) | (sps->temporal_id_nesting_flag << 2) | (nl - 1); |
| GST_WRITE_UINT8 (data + 22, num_arrays); /* numOfArrays */ |
| |
| data += 23; |
| |
| /* VPS */ |
| if (num_vps > 0) { |
| /* array_completeness | reserved_zero bit | nal_unit_type */ |
| data[0] = 0x00 | 0x20; |
| data++; |
| |
| GST_WRITE_UINT16_BE (data, num_vps); |
| data += 2; |
| |
| for (i = 0; i < GST_H265_MAX_VPS_COUNT; i++) { |
| if ((nal = h265parse->vps_nals[i])) { |
| gsize nal_size = gst_buffer_get_size (nal); |
| GST_WRITE_UINT16_BE (data, nal_size); |
| gst_buffer_extract (nal, 0, data + 2, nal_size); |
| data += 2 + nal_size; |
| } |
| } |
| } |
| |
| /* SPS */ |
| if (num_sps > 0) { |
| /* array_completeness | reserved_zero bit | nal_unit_type */ |
| data[0] = 0x00 | 0x21; |
| data++; |
| |
| GST_WRITE_UINT16_BE (data, num_sps); |
| data += 2; |
| |
| for (i = 0; i < GST_H265_MAX_SPS_COUNT; i++) { |
| if ((nal = h265parse->sps_nals[i])) { |
| gsize nal_size = gst_buffer_get_size (nal); |
| GST_WRITE_UINT16_BE (data, nal_size); |
| gst_buffer_extract (nal, 0, data + 2, nal_size); |
| data += 2 + nal_size; |
| } |
| } |
| } |
| |
| /* PPS */ |
| if (num_pps > 0) { |
| /* array_completeness | reserved_zero bit | nal_unit_type */ |
| data[0] = 0x00 | 0x22; |
| data++; |
| |
| GST_WRITE_UINT16_BE (data, num_pps); |
| data += 2; |
| |
| for (i = 0; i < GST_H265_MAX_PPS_COUNT; i++) { |
| if ((nal = h265parse->pps_nals[i])) { |
| gsize nal_size = gst_buffer_get_size (nal); |
| GST_WRITE_UINT16_BE (data, nal_size); |
| gst_buffer_extract (nal, 0, data + 2, nal_size); |
| data += 2 + nal_size; |
| } |
| } |
| } |
| gst_buffer_unmap (buf, &map); |
| |
| return buf; |
| } |
| |
| static void |
| gst_h265_parse_get_par (GstH265Parse * h265parse, gint * num, gint * den) |
| { |
| if (h265parse->upstream_par_n != -1 && h265parse->upstream_par_d != -1) { |
| *num = h265parse->upstream_par_n; |
| *den = h265parse->upstream_par_d; |
| } else { |
| *num = h265parse->parsed_par_n; |
| *den = h265parse->parsed_par_d; |
| } |
| } |
| |
| static const gchar * |
| digit_to_string (guint digit) |
| { |
| static const char itoa[][2] = { |
| "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" |
| }; |
| |
| if (G_LIKELY (digit < 10)) |
| return itoa[digit]; |
| else |
| return NULL; |
| } |
| |
| static const gchar * |
| get_profile_string (GstH265Profile profile) |
| { |
| switch (profile) { |
| case GST_H265_PROFILE_MAIN: |
| return "main"; |
| case GST_H265_PROFILE_MAIN_10: |
| return "main-10"; |
| case GST_H265_PROFILE_MAIN_STILL_PICTURE: |
| return "main-still-picture"; |
| case GST_H265_PROFILE_MONOCHROME: |
| return "monochrome"; |
| case GST_H265_PROFILE_MONOCHROME_12: |
| return "monochrome-12"; |
| case GST_H265_PROFILE_MONOCHROME_16: |
| return "monochrome-16"; |
| case GST_H265_PROFILE_MAIN_12: |
| return "main-12"; |
| case GST_H265_PROFILE_MAIN_422_10: |
| return "main-422-10"; |
| case GST_H265_PROFILE_MAIN_422_12: |
| return "main-422-12"; |
| case GST_H265_PROFILE_MAIN_444: |
| return "main-444"; |
| case GST_H265_PROFILE_MAIN_444_10: |
| return "main-444-10"; |
| case GST_H265_PROFILE_MAIN_444_12: |
| return "main-444-12"; |
| case GST_H265_PROFILE_MAIN_INTRA: |
| return "main-intra"; |
| case GST_H265_PROFILE_MAIN_10_INTRA: |
| return "main-10-intra"; |
| case GST_H265_PROFILE_MAIN_12_INTRA: |
| return "main-12-intra"; |
| case GST_H265_PROFILE_MAIN_422_10_INTRA: |
| return "main-422-10-intra"; |
| case GST_H265_PROFILE_MAIN_422_12_INTRA: |
| return "main-422-12-intra"; |
| case GST_H265_PROFILE_MAIN_444_INTRA: |
| return "main-444-intra"; |
| case GST_H265_PROFILE_MAIN_444_10_INTRA: |
| return "main-444-10-intra"; |
| case GST_H265_PROFILE_MAIN_444_12_INTRA: |
| return "main-444-12-intra"; |
| case GST_H265_PROFILE_MAIN_444_16_INTRA: |
| return "main-444-16-intra"; |
| case GST_H265_PROFILE_MAIN_444_STILL_PICTURE: |
| return "main-444-still-picture"; |
| case GST_H265_PROFILE_MAIN_444_16_STILL_PICTURE: |
| return "main-444-16-still-picture"; |
| default: |
| break; |
| } |
| |
| return NULL; |
| } |
| |
| static const gchar * |
| get_tier_string (guint8 tier_flag) |
| { |
| const gchar *tier = NULL; |
| |
| if (tier_flag) |
| tier = "high"; |
| else |
| tier = "main"; |
| |
| return tier; |
| } |
| |
| static const gchar * |
| get_level_string (guint8 level_idc) |
| { |
| if (level_idc == 0) |
| return NULL; |
| else if (level_idc % 30 == 0) |
| return digit_to_string (level_idc / 30); |
| else { |
| switch (level_idc) { |
| case 63: |
| return "2.1"; |
| break; |
| case 93: |
| return "3.1"; |
| break; |
| case 123: |
| return "4.1"; |
| break; |
| case 153: |
| return "5.1"; |
| break; |
| case 156: |
| return "5.2"; |
| break; |
| case 183: |
| return "6.1"; |
| break; |
| case 186: |
| return "6.2"; |
| break; |
| default: |
| return NULL; |
| } |
| } |
| } |
| |
| static GstCaps * |
| get_compatible_profile_caps (GstH265SPS * sps) |
| { |
| GstCaps *caps = NULL; |
| const gchar **profiles = NULL; |
| gint i; |
| GValue compat_profiles = G_VALUE_INIT; |
| g_value_init (&compat_profiles, GST_TYPE_LIST); |
| |
| switch (sps->profile_tier_level.profile_idc) { |
| case GST_H265_PROFILE_IDC_MAIN_10: |
| if (sps->profile_tier_level.profile_compatibility_flag[1]) { |
| if (sps->profile_tier_level.profile_compatibility_flag[3]) { |
| static const gchar *profile_array[] = |
| { "main", "main-still-picture", NULL }; |
| profiles = profile_array; |
| } else { |
| static const gchar *profile_array[] = { "main", NULL }; |
| profiles = profile_array; |
| } |
| } |
| break; |
| case GST_H265_PROFILE_IDC_MAIN: |
| if (sps->profile_tier_level.profile_compatibility_flag[3]) { |
| static const gchar *profile_array[] = |
| { "main-still-picture", "main-10", NULL |
| }; |
| profiles = profile_array; |
| } else { |
| static const gchar *profile_array[] = { "main-10", NULL }; |
| profiles = profile_array; |
| } |
| break; |
| case GST_H265_PROFILE_IDC_MAIN_STILL_PICTURE: |
| { |
| static const gchar *profile_array[] = { "main", "main-10", NULL |
| }; |
| profiles = profile_array; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (profiles) { |
| GValue value = G_VALUE_INIT; |
| caps = gst_caps_new_empty_simple ("video/x-h265"); |
| for (i = 0; profiles[i]; i++) { |
| g_value_init (&value, G_TYPE_STRING); |
| g_value_set_string (&value, profiles[i]); |
| gst_value_list_append_value (&compat_profiles, &value); |
| g_value_unset (&value); |
| } |
| gst_caps_set_value (caps, "profile", &compat_profiles); |
| g_value_unset (&compat_profiles); |
| } |
| |
| return caps; |
| } |
| |
| /* if downstream didn't support the exact profile indicated in sps header, |
| * check for the compatible profiles also */ |
| static void |
| ensure_caps_profile (GstH265Parse * h265parse, GstCaps * caps, GstH265SPS * sps) |
| { |
| GstCaps *peer_caps, *compat_caps; |
| |
| peer_caps = gst_pad_get_current_caps (GST_BASE_PARSE_SRC_PAD (h265parse)); |
| if (!peer_caps || !gst_caps_can_intersect (caps, peer_caps)) { |
| GstCaps *filter_caps = gst_caps_new_empty_simple ("video/x-h265"); |
| |
| if (peer_caps) |
| gst_caps_unref (peer_caps); |
| peer_caps = |
| gst_pad_peer_query_caps (GST_BASE_PARSE_SRC_PAD (h265parse), |
| filter_caps); |
| |
| gst_caps_unref (filter_caps); |
| } |
| |
| if (peer_caps && !gst_caps_can_intersect (caps, peer_caps)) { |
| GstStructure *structure; |
| |
| compat_caps = get_compatible_profile_caps (sps); |
| if (compat_caps != NULL) { |
| GstCaps *res_caps = NULL; |
| |
| res_caps = gst_caps_intersect (peer_caps, compat_caps); |
| |
| if (res_caps && !gst_caps_is_empty (res_caps)) { |
| const gchar *profile_str = NULL; |
| |
| res_caps = gst_caps_fixate (res_caps); |
| structure = gst_caps_get_structure (res_caps, 0); |
| profile_str = gst_structure_get_string (structure, "profile"); |
| if (profile_str) { |
| gst_caps_set_simple (caps, "profile", G_TYPE_STRING, profile_str, |
| NULL); |
| GST_DEBUG_OBJECT (h265parse, |
| "Setting compatible profile %s to the caps", profile_str); |
| } |
| } |
| if (res_caps) |
| gst_caps_unref (res_caps); |
| gst_caps_unref (compat_caps); |
| } |
| } |
| if (peer_caps) |
| gst_caps_unref (peer_caps); |
| } |
| |
| static void |
| gst_h265_parse_update_src_caps (GstH265Parse * h265parse, GstCaps * caps) |
| { |
| GstH265SPS *sps; |
| GstCaps *sink_caps, *src_caps; |
| gboolean modified = FALSE; |
| GstBuffer *buf = NULL; |
| GstStructure *s = NULL; |
| |
| if (G_UNLIKELY (!gst_pad_has_current_caps (GST_BASE_PARSE_SRC_PAD |
| (h265parse)))) |
| modified = TRUE; |
| else if (G_UNLIKELY (!h265parse->update_caps)) |
| return; |
| |
| /* if this is being called from the first _setcaps call, caps on the sinkpad |
| * aren't set yet and so they need to be passed as an argument */ |
| if (caps) |
| sink_caps = gst_caps_ref (caps); |
| else |
| sink_caps = gst_pad_get_current_caps (GST_BASE_PARSE_SINK_PAD (h265parse)); |
| |
| /* carry over input caps as much as possible; override with our own stuff */ |
| if (!sink_caps) |
| sink_caps = gst_caps_new_empty_simple ("video/x-h265"); |
| else |
| s = gst_caps_get_structure (sink_caps, 0); |
| |
| sps = h265parse->nalparser->last_sps; |
| GST_DEBUG_OBJECT (h265parse, "sps: %p", sps); |
| |
| /* only codec-data for nice-and-clean au aligned packetized hevc format */ |
| if ((h265parse->format == GST_H265_PARSE_FORMAT_HVC1 |
| || h265parse->format == GST_H265_PARSE_FORMAT_HEV1) |
| && h265parse->align == GST_H265_PARSE_ALIGN_AU) { |
| buf = gst_h265_parse_make_codec_data (h265parse); |
| if (buf && h265parse->codec_data) { |
| GstMapInfo map; |
| |
| gst_buffer_map (buf, &map, GST_MAP_READ); |
| if (map.size != gst_buffer_get_size (h265parse->codec_data) || |
| gst_buffer_memcmp (h265parse->codec_data, 0, map.data, map.size)) |
| modified = TRUE; |
| |
| gst_buffer_unmap (buf, &map); |
| } else { |
| if (!buf && h265parse->codec_data_in) |
| buf = gst_buffer_ref (h265parse->codec_data_in); |
| modified = TRUE; |
| } |
| } |
| |
| caps = NULL; |
| if (G_UNLIKELY (!sps)) { |
| caps = gst_caps_copy (sink_caps); |
| } else { |
| gint crop_width, crop_height; |
| const gchar *chroma_format = NULL; |
| guint bit_depth_chroma; |
| |
| if (sps->conformance_window_flag) { |
| crop_width = sps->crop_rect_width; |
| crop_height = sps->crop_rect_height; |
| } else { |
| crop_width = sps->width; |
| crop_height = sps->height; |
| } |
| |
| if (G_UNLIKELY (h265parse->width != crop_width || |
| h265parse->height != crop_height)) { |
| GST_INFO_OBJECT (h265parse, "resolution changed %dx%d", |
| crop_width, crop_height); |
| h265parse->width = crop_width; |
| h265parse->height = crop_height; |
| modified = TRUE; |
| } |
| |
| /* 0/1 is set as the default in the codec parser */ |
| if (sps->vui_params.timing_info_present_flag && |
| !(sps->fps_num == 0 && sps->fps_den == 1)) { |
| if (G_UNLIKELY (h265parse->fps_num != sps->fps_num |
| || h265parse->fps_den != sps->fps_den)) { |
| GST_INFO_OBJECT (h265parse, "framerate changed %d/%d", |
| sps->fps_num, sps->fps_den); |
| h265parse->fps_num = sps->fps_num; |
| h265parse->fps_den = sps->fps_den; |
| modified = TRUE; |
| } |
| } |
| |
| if (sps->vui_params.aspect_ratio_info_present_flag) { |
| if (G_UNLIKELY ((h265parse->parsed_par_n != sps->vui_params.par_n) |
| && (h265parse->parsed_par_d != sps->vui_params.par_d))) { |
| h265parse->parsed_par_n = sps->vui_params.par_n; |
| h265parse->parsed_par_d = sps->vui_params.par_d; |
| GST_INFO_OBJECT (h265parse, "pixel aspect ratio has been changed %d/%d", |
| h265parse->parsed_par_n, h265parse->parsed_par_d); |
| modified = TRUE; |
| } |
| |
| } |
| |
| if (G_UNLIKELY (modified || h265parse->update_caps)) { |
| gint fps_num = h265parse->fps_num; |
| gint fps_den = h265parse->fps_den; |
| gint width, height; |
| GstClockTime latency; |
| |
| caps = gst_caps_copy (sink_caps); |
| |
| /* sps should give this but upstream overrides */ |
| if (s && gst_structure_has_field (s, "width")) |
| gst_structure_get_int (s, "width", &width); |
| else |
| width = h265parse->width; |
| |
| if (s && gst_structure_has_field (s, "height")) |
| gst_structure_get_int (s, "height", &height); |
| else |
| height = h265parse->height; |
| |
| gst_caps_set_simple (caps, "width", G_TYPE_INT, width, |
| "height", G_TYPE_INT, height, NULL); |
| |
| /* upstream overrides */ |
| if (s && gst_structure_has_field (s, "framerate")) |
| gst_structure_get_fraction (s, "framerate", &fps_num, &fps_den); |
| |
| /* but not necessarily or reliably this */ |
| if (fps_num > 0 && fps_den > 0) { |
| GST_INFO_OBJECT (h265parse, "setting framerate in caps"); |
| gst_caps_set_simple (caps, "framerate", |
| GST_TYPE_FRACTION, fps_num, fps_den, NULL); |
| gst_base_parse_set_frame_rate (GST_BASE_PARSE (h265parse), |
| fps_num, fps_den, 0, 0); |
| latency = gst_util_uint64_scale (GST_SECOND, fps_den, fps_num); |
| gst_base_parse_set_latency (GST_BASE_PARSE (h265parse), latency, |
| latency); |
| } |
| |
| bit_depth_chroma = sps->bit_depth_chroma_minus8 + 8; |
| |
| switch (sps->chroma_format_idc) { |
| case 0: |
| chroma_format = "4:0:0"; |
| bit_depth_chroma = 0; |
| break; |
| case 1: |
| chroma_format = "4:2:0"; |
| break; |
| case 2: |
| chroma_format = "4:2:2"; |
| break; |
| case 3: |
| chroma_format = "4:4:4"; |
| break; |
| default: |
| break; |
| } |
| |
| if (chroma_format) |
| gst_caps_set_simple (caps, "chroma-format", G_TYPE_STRING, |
| chroma_format, "bit-depth-luma", G_TYPE_UINT, |
| sps->bit_depth_luma_minus8 + 8, "bit-depth-chroma", G_TYPE_UINT, |
| bit_depth_chroma, NULL); |
| } |
| } |
| |
| if (caps) { |
| gint par_n, par_d; |
| |
| gst_caps_set_simple (caps, "parsed", G_TYPE_BOOLEAN, TRUE, |
| "stream-format", G_TYPE_STRING, |
| gst_h265_parse_get_string (h265parse, TRUE, h265parse->format), |
| "alignment", G_TYPE_STRING, |
| gst_h265_parse_get_string (h265parse, FALSE, h265parse->align), NULL); |
| |
| gst_h265_parse_get_par (h265parse, &par_n, &par_d); |
| if (par_n != 0 && par_d != 0 && |
| (!s || !gst_structure_has_field (s, "pixel-aspect-ratio"))) { |
| GST_INFO_OBJECT (h265parse, "PAR %d/%d", par_n, par_d); |
| gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION, |
| par_n, par_d, NULL); |
| } |
| |
| /* set profile and level in caps */ |
| if (sps) { |
| const gchar *profile, *tier, *level; |
| GstH265Profile p; |
| |
| p = gst_h265_profile_tier_level_get_profile (&sps->profile_tier_level); |
| profile = get_profile_string (p); |
| if (profile != NULL) |
| gst_caps_set_simple (caps, "profile", G_TYPE_STRING, profile, NULL); |
| |
| tier = get_tier_string (sps->profile_tier_level.tier_flag); |
| if (tier != NULL) |
| gst_caps_set_simple (caps, "tier", G_TYPE_STRING, tier, NULL); |
| |
| level = get_level_string (sps->profile_tier_level.level_idc); |
| if (level != NULL) |
| gst_caps_set_simple (caps, "level", G_TYPE_STRING, level, NULL); |
| |
| /* relax the profile constraint to find a suitable decoder */ |
| ensure_caps_profile (h265parse, caps, sps); |
| } |
| |
| src_caps = gst_pad_get_current_caps (GST_BASE_PARSE_SRC_PAD (h265parse)); |
| |
| if (src_caps) { |
| /* use codec data from old caps for comparison; we don't want to resend caps |
| if everything is same except codec data; */ |
| if (gst_structure_has_field (gst_caps_get_structure (src_caps, 0), |
| "codec_data")) { |
| gst_caps_set_value (caps, "codec_data", |
| gst_structure_get_value (gst_caps_get_structure (src_caps, 0), |
| "codec_data")); |
| } else if (!buf) { |
| GstStructure *s; |
| /* remove any left-over codec-data hanging around */ |
| s = gst_caps_get_structure (caps, 0); |
| gst_structure_remove_field (s, "codec_data"); |
| } |
| } |
| |
| if (!(src_caps && gst_caps_is_strictly_equal (src_caps, caps))) { |
| /* update codec data to new value */ |
| if (buf) { |
| gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, buf, NULL); |
| gst_buffer_replace (&h265parse->codec_data, buf); |
| gst_buffer_unref (buf); |
| buf = NULL; |
| } else { |
| GstStructure *s; |
| /* remove any left-over codec-data hanging around */ |
| s = gst_caps_get_structure (caps, 0); |
| gst_structure_remove_field (s, "codec_data"); |
| gst_buffer_replace (&h265parse->codec_data, NULL); |
| } |
| |
| gst_pad_set_caps (GST_BASE_PARSE_SRC_PAD (h265parse), caps); |
| } |
| |
| if (src_caps) |
| gst_caps_unref (src_caps); |
| gst_caps_unref (caps); |
| } |
| |
| gst_caps_unref (sink_caps); |
| if (buf) |
| gst_buffer_unref (buf); |
| |
| } |
| |
| static GstFlowReturn |
| gst_h265_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame) |
| { |
| GstH265Parse *h265parse; |
| GstBuffer *buffer; |
| guint av; |
| |
| h265parse = GST_H265_PARSE (parse); |
| buffer = frame->buffer; |
| |
| gst_h265_parse_update_src_caps (h265parse, NULL); |
| |
| /* Fixme: Implement timestamp interpolation based on SEI Messagses */ |
| GST_FIXME_OBJECT (h265parse, |
| "Implement timestamp/duration interpolation based on SEI message"); |
| |
| if (h265parse->keyframe) |
| GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); |
| else |
| GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); |
| |
| if (h265parse->header) |
| GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_HEADER); |
| else |
| GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_HEADER); |
| |
| /* replace with transformed HEVC output if applicable */ |
| av = gst_adapter_available (h265parse->frame_out); |
| if (av) { |
| GstBuffer *buf; |
| |
| buf = gst_adapter_take_buffer (h265parse->frame_out, av); |
| gst_buffer_copy_into (buf, buffer, GST_BUFFER_COPY_METADATA, 0, -1); |
| gst_buffer_replace (&frame->out_buffer, buf); |
| gst_buffer_unref (buf); |
| } |
| |
| return GST_FLOW_OK; |
| } |
| |
| /* sends a codec NAL downstream, decorating and transforming as needed. |
| * No ownership is taken of @nal */ |
| static GstFlowReturn |
| gst_h265_parse_push_codec_buffer (GstH265Parse * h265parse, GstBuffer * nal, |
| GstClockTime ts) |
| { |
| GstMapInfo map; |
| |
| gst_buffer_map (nal, &map, GST_MAP_READ); |
| nal = gst_h265_parse_wrap_nal (h265parse, h265parse->format, |
| map.data, map.size); |
| gst_buffer_unmap (nal, &map); |
| |
| GST_BUFFER_TIMESTAMP (nal) = ts; |
| GST_BUFFER_DURATION (nal) = 0; |
| |
| return gst_pad_push (GST_BASE_PARSE_SRC_PAD (h265parse), nal); |
| } |
| |
| static GstEvent * |
| check_pending_key_unit_event (GstEvent * pending_event, GstSegment * segment, |
| GstClockTime timestamp, guint flags, GstClockTime pending_key_unit_ts) |
| { |
| GstClockTime running_time, stream_time; |
| gboolean all_headers; |
| guint count; |
| GstEvent *event = NULL; |
| |
| g_return_val_if_fail (segment != NULL, NULL); |
| |
| if (pending_event == NULL) |
| goto out; |
| |
| if (GST_CLOCK_TIME_IS_VALID (pending_key_unit_ts) && |
| timestamp == GST_CLOCK_TIME_NONE) |
| goto out; |
| |
| running_time = gst_segment_to_running_time (segment, |
| GST_FORMAT_TIME, timestamp); |
| |
| GST_INFO ("now %" GST_TIME_FORMAT " wanted %" GST_TIME_FORMAT, |
| GST_TIME_ARGS (running_time), GST_TIME_ARGS (pending_key_unit_ts)); |
| if (GST_CLOCK_TIME_IS_VALID (pending_key_unit_ts) && |
| running_time < pending_key_unit_ts) |
| goto out; |
| |
| if (flags & GST_BUFFER_FLAG_DELTA_UNIT) { |
| GST_DEBUG ("pending force key unit, waiting for keyframe"); |
| goto out; |
| } |
| |
| stream_time = gst_segment_to_stream_time (segment, |
| GST_FORMAT_TIME, timestamp); |
| |
| if (!gst_video_event_parse_upstream_force_key_unit (pending_event, |
| NULL, &all_headers, &count)) { |
| gst_video_event_parse_downstream_force_key_unit (pending_event, NULL, |
| NULL, NULL, &all_headers, &count); |
| } |
| |
| event = |
| gst_video_event_new_downstream_force_key_unit (timestamp, stream_time, |
| running_time, all_headers, count); |
| gst_event_set_seqnum (event, gst_event_get_seqnum (pending_event)); |
| |
| out: |
| return event; |
| } |
| |
| static void |
| gst_h265_parse_prepare_key_unit (GstH265Parse * parse, GstEvent * event) |
| { |
| GstClockTime running_time; |
| guint count; |
| #ifndef GST_DISABLE_GST_DEBUG |
| gboolean have_vps, have_sps, have_pps; |
| gint i; |
| #endif |
| |
| parse->pending_key_unit_ts = GST_CLOCK_TIME_NONE; |
| gst_event_replace (&parse->force_key_unit_event, NULL); |
| |
| gst_video_event_parse_downstream_force_key_unit (event, |
| NULL, NULL, &running_time, NULL, &count); |
| |
| GST_INFO_OBJECT (parse, "pushing downstream force-key-unit event %d " |
| "%" GST_TIME_FORMAT " count %d", gst_event_get_seqnum (event), |
| GST_TIME_ARGS (running_time), count); |
| gst_pad_push_event (GST_BASE_PARSE_SRC_PAD (parse), event); |
| |
| #ifndef GST_DISABLE_GST_DEBUG |
| have_vps = have_sps = have_pps = FALSE; |
| for (i = 0; i < GST_H265_MAX_VPS_COUNT; i++) { |
| if (parse->vps_nals[i] != NULL) { |
| have_vps = TRUE; |
| break; |
| } |
| } |
| for (i = 0; i < GST_H265_MAX_SPS_COUNT; i++) { |
| if (parse->sps_nals[i] != NULL) { |
| have_sps = TRUE; |
| break; |
| } |
| } |
| for (i = 0; i < GST_H265_MAX_PPS_COUNT; i++) { |
| if (parse->pps_nals[i] != NULL) { |
| have_pps = TRUE; |
| break; |
| } |
| } |
| |
| GST_INFO_OBJECT (parse, |
| "preparing key unit, have vps %d have sps %d have pps %d", have_vps, |
| have_sps, have_pps); |
| #endif |
| |
| /* set push_codec to TRUE so that pre_push_frame sends VPS/SPS/PPS again */ |
| parse->push_codec = TRUE; |
| } |
| |
| static GstFlowReturn |
| gst_h265_parse_pre_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame) |
| { |
| GstH265Parse *h265parse; |
| GstBuffer *buffer; |
| GstEvent *event; |
| |
| h265parse = GST_H265_PARSE (parse); |
| |
| if (!h265parse->sent_codec_tag) { |
| GstTagList *taglist; |
| GstCaps *caps; |
| |
| /* codec tag */ |
| caps = gst_pad_get_current_caps (GST_BASE_PARSE_SRC_PAD (parse)); |
| if (G_UNLIKELY (caps == NULL)) { |
| if (GST_PAD_IS_FLUSHING (GST_BASE_PARSE_SRC_PAD (parse))) { |
| GST_INFO_OBJECT (parse, "Src pad is flushing"); |
| return GST_FLOW_FLUSHING; |
| } else { |
| GST_INFO_OBJECT (parse, "Src pad is not negotiated!"); |
| return GST_FLOW_NOT_NEGOTIATED; |
| } |
| } |
| |
| taglist = gst_tag_list_new_empty (); |
| gst_pb_utils_add_codec_description_to_tag_list (taglist, |
| GST_TAG_VIDEO_CODEC, caps); |
| gst_caps_unref (caps); |
| |
| gst_base_parse_merge_tags (parse, taglist, GST_TAG_MERGE_REPLACE); |
| gst_tag_list_unref (taglist); |
| |
| /* also signals the end of first-frame processing */ |
| h265parse->sent_codec_tag = TRUE; |
| } |
| |
| buffer = frame->buffer; |
| |
| if ((event = check_pending_key_unit_event (h265parse->force_key_unit_event, |
| &parse->segment, GST_BUFFER_TIMESTAMP (buffer), |
| GST_BUFFER_FLAGS (buffer), h265parse->pending_key_unit_ts))) { |
| gst_h265_parse_prepare_key_unit (h265parse, event); |
| } |
| |
| /* periodic VPS/SPS/PPS sending */ |
| if (h265parse->interval > 0 || h265parse->push_codec) { |
| GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer); |
| guint64 diff; |
| |
| /* init */ |
| if (!GST_CLOCK_TIME_IS_VALID (h265parse->last_report)) { |
| h265parse->last_report = timestamp; |
| } |
| |
| if (h265parse->idr_pos >= 0) { |
| GST_LOG_OBJECT (h265parse, "IDR nal at offset %d", h265parse->idr_pos); |
| |
| if (timestamp > h265parse->last_report) |
| diff = timestamp - h265parse->last_report; |
| else |
| diff = 0; |
| |
| GST_LOG_OBJECT (h265parse, |
| "now %" GST_TIME_FORMAT ", last VPS/SPS/PPS %" GST_TIME_FORMAT, |
| GST_TIME_ARGS (timestamp), GST_TIME_ARGS (h265parse->last_report)); |
| |
| GST_DEBUG_OBJECT (h265parse, |
| "interval since last VPS/SPS/PPS %" GST_TIME_FORMAT, |
| GST_TIME_ARGS (diff)); |
| |
| if (GST_TIME_AS_SECONDS (diff) >= h265parse->interval || |
| h265parse->push_codec) { |
| GstBuffer *codec_nal; |
| gint i; |
| GstClockTime new_ts; |
| |
| /* avoid overwriting a perfectly fine timestamp */ |
| new_ts = GST_CLOCK_TIME_IS_VALID (timestamp) ? timestamp : |
| h265parse->last_report; |
| |
| if (h265parse->align == GST_H265_PARSE_ALIGN_NAL) { |
| /* send separate config NAL buffers */ |
| GST_DEBUG_OBJECT (h265parse, "- sending VPS/SPS/PPS"); |
| for (i = 0; i < GST_H265_MAX_VPS_COUNT; i++) { |
| if ((codec_nal = h265parse->vps_nals[i])) { |
| GST_DEBUG_OBJECT (h265parse, "sending VPS nal"); |
| gst_h265_parse_push_codec_buffer (h265parse, codec_nal, |
| timestamp); |
| h265parse->last_report = new_ts; |
| } |
| } |
| for (i = 0; i < GST_H265_MAX_SPS_COUNT; i++) { |
| if ((codec_nal = h265parse->sps_nals[i])) { |
| GST_DEBUG_OBJECT (h265parse, "sending SPS nal"); |
| gst_h265_parse_push_codec_buffer (h265parse, codec_nal, |
| timestamp); |
| h265parse->last_report = new_ts; |
| } |
| } |
| for (i = 0; i < GST_H265_MAX_PPS_COUNT; i++) { |
| if ((codec_nal = h265parse->pps_nals[i])) { |
| GST_DEBUG_OBJECT (h265parse, "sending PPS nal"); |
| gst_h265_parse_push_codec_buffer (h265parse, codec_nal, |
| timestamp); |
| h265parse->last_report = new_ts; |
| } |
| } |
| } else { |
| /* insert config NALs into AU */ |
| GstByteWriter bw; |
| GstBuffer *new_buf; |
| const gboolean bs = h265parse->format == GST_H265_PARSE_FORMAT_BYTE; |
| const gint nls = 4 - h265parse->nal_length_size; |
| gboolean ok; |
| |
| gst_byte_writer_init_with_size (&bw, gst_buffer_get_size (buffer), |
| FALSE); |
| ok = gst_byte_writer_put_buffer (&bw, buffer, 0, h265parse->idr_pos); |
| GST_DEBUG_OBJECT (h265parse, "- inserting VPS/SPS/PPS"); |
| for (i = 0; i < GST_H265_MAX_VPS_COUNT; i++) { |
| if ((codec_nal = h265parse->vps_nals[i])) { |
| gsize nal_size = gst_buffer_get_size (codec_nal); |
| GST_DEBUG_OBJECT (h265parse, "inserting VPS nal"); |
| if (bs) { |
| ok &= gst_byte_writer_put_uint32_be (&bw, 1); |
| } else { |
| ok &= gst_byte_writer_put_uint32_be (&bw, |
| (nal_size << (nls * 8))); |
| ok &= gst_byte_writer_set_pos (&bw, |
| gst_byte_writer_get_pos (&bw) - nls); |
| } |
| |
| ok &= gst_byte_writer_put_buffer (&bw, codec_nal, 0, nal_size); |
| h265parse->last_report = new_ts; |
| } |
| } |
| for (i = 0; i < GST_H265_MAX_SPS_COUNT; i++) { |
| if ((codec_nal = h265parse->sps_nals[i])) { |
| gsize nal_size = gst_buffer_get_size (codec_nal); |
| GST_DEBUG_OBJECT (h265parse, "inserting SPS nal"); |
| if (bs) { |
| ok &= gst_byte_writer_put_uint32_be (&bw, 1); |
| } else { |
| ok &= gst_byte_writer_put_uint32_be (&bw, |
| (nal_size << (nls * 8))); |
| ok &= gst_byte_writer_set_pos (&bw, |
| gst_byte_writer_get_pos (&bw) - nls); |
| } |
| |
| ok &= gst_byte_writer_put_buffer (&bw, codec_nal, 0, nal_size); |
| h265parse->last_report = new_ts; |
| } |
| } |
| for (i = 0; i < GST_H265_MAX_PPS_COUNT; i++) { |
| if ((codec_nal = h265parse->pps_nals[i])) { |
| gsize nal_size = gst_buffer_get_size (codec_nal); |
| GST_DEBUG_OBJECT (h265parse, "inserting PPS nal"); |
| if (bs) { |
| ok &= gst_byte_writer_put_uint32_be (&bw, 1); |
| } else { |
| ok &= gst_byte_writer_put_uint32_be (&bw, |
| (nal_size << (nls * 8))); |
| ok &= gst_byte_writer_set_pos (&bw, |
| gst_byte_writer_get_pos (&bw) - nls); |
| } |
| ok &= gst_byte_writer_put_buffer (&bw, codec_nal, 0, nal_size); |
| h265parse->last_report = new_ts; |
| } |
| } |
| ok &= |
| gst_byte_writer_put_buffer (&bw, buffer, h265parse->idr_pos, -1); |
| /* collect result and push */ |
| new_buf = gst_byte_writer_reset_and_get_buffer (&bw); |
| gst_buffer_copy_into (new_buf, buffer, GST_BUFFER_COPY_METADATA, 0, |
| -1); |
| /* should already be keyframe/IDR, but it may not have been, |
| * so mark it as such to avoid being discarded by picky decoder */ |
| GST_BUFFER_FLAG_UNSET (new_buf, GST_BUFFER_FLAG_DELTA_UNIT); |
| gst_buffer_replace (&frame->out_buffer, new_buf); |
| gst_buffer_unref (new_buf); |
| /* some result checking seems to make some compilers happy */ |
| if (G_UNLIKELY (!ok)) { |
| GST_ERROR_OBJECT (h265parse, "failed to insert SPS/PPS"); |
| } |
| } |
| } |
| /* we pushed whatever we had */ |
| h265parse->push_codec = FALSE; |
| h265parse->have_vps = FALSE; |
| h265parse->have_sps = FALSE; |
| h265parse->have_pps = FALSE; |
| } |
| } |
| |
| gst_h265_parse_reset_frame (h265parse); |
| |
| return GST_FLOW_OK; |
| } |
| |
| static gboolean |
| gst_h265_parse_set_caps (GstBaseParse * parse, GstCaps * caps) |
| { |
| GstH265Parse *h265parse; |
| GstStructure *str; |
| const GValue *value; |
| GstBuffer *codec_data = NULL; |
| gsize off, size; |
| guint format, align; |
| guint num_nals, i, j; |
| GstH265NalUnit nalu; |
| GstH265ParserResult parseres; |
| |
| h265parse = GST_H265_PARSE (parse); |
| |
| /* reset */ |
| h265parse->push_codec = FALSE; |
| |
| str = gst_caps_get_structure (caps, 0); |
| |
| /* accept upstream info if provided */ |
| gst_structure_get_int (str, "width", &h265parse->width); |
| gst_structure_get_int (str, "height", &h265parse->height); |
| gst_structure_get_fraction (str, "framerate", &h265parse->fps_num, |
| &h265parse->fps_den); |
| gst_structure_get_fraction (str, "pixel-aspect-ratio", |
| &h265parse->upstream_par_n, &h265parse->upstream_par_d); |
| |
| /* get upstream format and align from caps */ |
| gst_h265_parse_format_from_caps (caps, &format, &align); |
| |
| /* packetized video has a codec_data */ |
| if (format != GST_H265_PARSE_FORMAT_BYTE && |
| (value = gst_structure_get_value (str, "codec_data"))) { |
| GstMapInfo map; |
| guint8 *data; |
| guint num_nal_arrays; |
| |
| GST_DEBUG_OBJECT (h265parse, "have packetized h265"); |
| /* make note for optional split processing */ |
| h265parse->packetized = TRUE; |
| |
| codec_data = gst_value_get_buffer (value); |
| if (!codec_data) |
| goto wrong_type; |
| gst_buffer_map (codec_data, &map, GST_MAP_READ); |
| data = map.data; |
| size = map.size; |
| |
| /* parse the hvcC data */ |
| if (size < 23) { |
| gst_buffer_unmap (codec_data, &map); |
| goto hvcc_too_small; |
| } |
| /* parse the version, this must be one but |
| * is zero until the spec is finalized */ |
| if (data[0] != 0 && data[0] != 1) { |
| gst_buffer_unmap (codec_data, &map); |
| goto wrong_version; |
| } |
| |
| h265parse->nal_length_size = (data[21] & 0x03) + 1; |
| GST_DEBUG_OBJECT (h265parse, "nal length size %u", |
| h265parse->nal_length_size); |
| |
| num_nal_arrays = data[22]; |
| off = 23; |
| |
| for (i = 0; i < num_nal_arrays; i++) { |
| if (off + 3 >= size) { |
| gst_buffer_unmap (codec_data, &map); |
| goto hvcc_too_small; |
| } |
| |
| num_nals = GST_READ_UINT16_BE (data + off + 1); |
| off += 3; |
| for (j = 0; j < num_nals; j++) { |
| parseres = gst_h265_parser_identify_nalu_hevc (h265parse->nalparser, |
| data, off, size, 2, &nalu); |
| |
| if (parseres != GST_H265_PARSER_OK) { |
| gst_buffer_unmap (codec_data, &map); |
| goto hvcc_too_small; |
| } |
| |
| gst_h265_parse_process_nal (h265parse, &nalu); |
| off = nalu.offset + nalu.size; |
| } |
| } |
| gst_buffer_unmap (codec_data, &map); |
| } else { |
| GST_DEBUG_OBJECT (h265parse, "have bytestream h265"); |
| /* nothing to pre-process */ |
| h265parse->packetized = FALSE; |
| /* we have 4 sync bytes */ |
| h265parse->nal_length_size = 4; |
| |
| if (format == GST_H265_PARSE_FORMAT_NONE) { |
| format = GST_H265_PARSE_FORMAT_BYTE; |
| align = GST_H265_PARSE_ALIGN_AU; |
| } |
| } |
| |
| { |
| GstCaps *in_caps; |
| |
| /* prefer input type determined above */ |
| in_caps = gst_caps_new_simple ("video/x-h265", |
| "parsed", G_TYPE_BOOLEAN, TRUE, |
| "stream-format", G_TYPE_STRING, |
| gst_h265_parse_get_string (h265parse, TRUE, format), |
| "alignment", G_TYPE_STRING, |
| gst_h265_parse_get_string (h265parse, FALSE, align), NULL); |
| /* negotiate with downstream, sets ->format and ->align */ |
| gst_h265_parse_negotiate (h265parse, format, in_caps); |
| gst_caps_unref (in_caps); |
| } |
| |
| if (format == h265parse->format && align == h265parse->align) { |
| /* do not set CAPS and passthrough mode if SPS/PPS have not been parsed */ |
| if (h265parse->have_sps && h265parse->have_pps) { |
| gst_base_parse_set_passthrough (parse, TRUE); |
| |
| /* we did parse codec-data and might supplement src caps */ |
| gst_h265_parse_update_src_caps (h265parse, caps); |
| } |
| } else if (format == GST_H265_PARSE_FORMAT_HVC1 |
| || format == GST_H265_PARSE_FORMAT_HEV1) { |
| /* if input != output, and input is hevc, must split before anything else */ |
| /* arrange to insert codec-data in-stream if needed. |
| * src caps are only arranged for later on */ |
| h265parse->push_codec = TRUE; |
| h265parse->have_vps = FALSE; |
| h265parse->have_sps = FALSE; |
| h265parse->have_pps = FALSE; |
| if (h265parse->align == GST_H265_PARSE_ALIGN_NAL) |
| h265parse->split_packetized = TRUE; |
| h265parse->packetized = TRUE; |
| } |
| |
| return TRUE; |
| |
| /* ERRORS */ |
| hvcc_too_small: |
| { |
| GST_DEBUG_OBJECT (h265parse, "hvcC size %" G_GSIZE_FORMAT " < 23", size); |
| goto refuse_caps; |
| } |
| wrong_version: |
| { |
| GST_DEBUG_OBJECT (h265parse, "wrong hvcC version"); |
| goto refuse_caps; |
| } |
| wrong_type: |
| { |
| GST_DEBUG_OBJECT (h265parse, "wrong codec-data type"); |
| goto refuse_caps; |
| } |
| refuse_caps: |
| { |
| GST_WARNING_OBJECT (h265parse, "refused caps %" GST_PTR_FORMAT, caps); |
| return FALSE; |
| } |
| } |
| |
| static void |
| remove_fields (GstCaps * caps, gboolean all) |
| { |
| guint i, n; |
| |
| n = gst_caps_get_size (caps); |
| for (i = 0; i < n; i++) { |
| GstStructure *s = gst_caps_get_structure (caps, i); |
| |
| if (all) { |
| gst_structure_remove_field (s, "alignment"); |
| gst_structure_remove_field (s, "stream-format"); |
| } |
| gst_structure_remove_field (s, "parsed"); |
| } |
| } |
| |
| static GstCaps * |
| gst_h265_parse_get_caps (GstBaseParse * parse, GstCaps * filter) |
| { |
| GstCaps *peercaps, *templ; |
| GstCaps *res, *tmp, *pcopy; |
| |
| templ = gst_pad_get_pad_template_caps (GST_BASE_PARSE_SINK_PAD (parse)); |
| if (filter) { |
| GstCaps *fcopy = gst_caps_copy (filter); |
| /* Remove the fields we convert */ |
| remove_fields (fcopy, TRUE); |
| peercaps = gst_pad_peer_query_caps (GST_BASE_PARSE_SRC_PAD (parse), fcopy); |
| gst_caps_unref (fcopy); |
| } else |
| peercaps = gst_pad_peer_query_caps (GST_BASE_PARSE_SRC_PAD (parse), NULL); |
| |
| pcopy = gst_caps_copy (peercaps); |
| remove_fields (pcopy, TRUE); |
| |
| res = gst_caps_intersect_full (pcopy, templ, GST_CAPS_INTERSECT_FIRST); |
| gst_caps_unref (pcopy); |
| gst_caps_unref (templ); |
| |
| if (filter) { |
| GstCaps *tmp = gst_caps_intersect_full (res, filter, |
| GST_CAPS_INTERSECT_FIRST); |
| gst_caps_unref (res); |
| res = tmp; |
| } |
| |
| /* Try if we can put the downstream caps first */ |
| pcopy = gst_caps_copy (peercaps); |
| remove_fields (pcopy, FALSE); |
| tmp = gst_caps_intersect_full (pcopy, res, GST_CAPS_INTERSECT_FIRST); |
| gst_caps_unref (pcopy); |
| if (!gst_caps_is_empty (tmp)) |
| res = gst_caps_merge (tmp, res); |
| else |
| gst_caps_unref (tmp); |
| |
| gst_caps_unref (peercaps); |
| return res; |
| } |
| |
| static gboolean |
| gst_h265_parse_event (GstBaseParse * parse, GstEvent * event) |
| { |
| gboolean res; |
| GstH265Parse *h265parse = GST_H265_PARSE (parse); |
| |
| switch (GST_EVENT_TYPE (event)) { |
| case GST_EVENT_CUSTOM_DOWNSTREAM: |
| { |
| GstClockTime timestamp, stream_time, running_time; |
| gboolean all_headers; |
| guint count; |
| |
| if (gst_video_event_is_force_key_unit (event)) { |
| gst_video_event_parse_downstream_force_key_unit (event, |
| ×tamp, &stream_time, &running_time, &all_headers, &count); |
| |
| GST_INFO_OBJECT (h265parse, "received downstream force key unit event, " |
| "seqnum %d running_time %" GST_TIME_FORMAT |
| " all_headers %d count %d", gst_event_get_seqnum (event), |
| GST_TIME_ARGS (running_time), all_headers, count); |
| if (h265parse->force_key_unit_event) { |
| GST_INFO_OBJECT (h265parse, "ignoring force key unit event " |
| "as one is already queued"); |
| } else { |
| h265parse->pending_key_unit_ts = running_time; |
| gst_event_replace (&h265parse->force_key_unit_event, event); |
| } |
| gst_event_unref (event); |
| res = TRUE; |
| } else { |
| res = GST_BASE_PARSE_CLASS (parent_class)->sink_event (parse, event); |
| break; |
| } |
| break; |
| } |
| case GST_EVENT_FLUSH_STOP: |
| h265parse->push_codec = TRUE; |
| res = GST_BASE_PARSE_CLASS (parent_class)->sink_event (parse, event); |
| break; |
| case GST_EVENT_SEGMENT: |
| { |
| res = GST_BASE_PARSE_CLASS (parent_class)->sink_event (parse, event); |
| break; |
| } |
| default: |
| res = GST_BASE_PARSE_CLASS (parent_class)->sink_event (parse, event); |
| break; |
| } |
| return res; |
| } |
| |
| static gboolean |
| gst_h265_parse_src_event (GstBaseParse * parse, GstEvent * event) |
| { |
| gboolean res; |
| GstH265Parse *h265parse = GST_H265_PARSE (parse); |
| |
| switch (GST_EVENT_TYPE (event)) { |
| case GST_EVENT_CUSTOM_UPSTREAM: |
| { |
| GstClockTime running_time; |
| gboolean all_headers; |
| guint count; |
| |
| if (gst_video_event_is_force_key_unit (event)) { |
| gst_video_event_parse_upstream_force_key_unit (event, |
| &running_time, &all_headers, &count); |
| |
| GST_INFO_OBJECT (h265parse, "received upstream force-key-unit event, " |
| "seqnum %d running_time %" GST_TIME_FORMAT |
| " all_headers %d count %d", gst_event_get_seqnum (event), |
| GST_TIME_ARGS (running_time), all_headers, count); |
| |
| if (all_headers) { |
| h265parse->pending_key_unit_ts = running_time; |
| gst_event_replace (&h265parse->force_key_unit_event, event); |
| } |
| } |
| res = GST_BASE_PARSE_CLASS (parent_class)->src_event (parse, event); |
| break; |
| } |
| default: |
| res = GST_BASE_PARSE_CLASS (parent_class)->src_event (parse, event); |
| break; |
| } |
| |
| return res; |
| } |
| |
| static void |
| gst_h265_parse_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstH265Parse *parse; |
| parse = GST_H265_PARSE (object); |
| |
| switch (prop_id) { |
| case PROP_CONFIG_INTERVAL: |
| parse->interval = g_value_get_uint (value); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_h265_parse_get_property (GObject * object, guint prop_id, GValue * value, |
| GParamSpec * pspec) |
| { |
| GstH265Parse *parse; |
| parse = GST_H265_PARSE (object); |
| |
| switch (prop_id) { |
| case PROP_CONFIG_INTERVAL: |
| g_value_set_uint (value, parse->interval); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |