mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-29 21:21:12 +00:00
b405ff34d3
There is an existing PMT mapping between PCR_%s and an mpegtsmux sink pad name, where %s equals the program number that the PCR corresponds to. We re-purpose this functionality to also support a mapping between PCR_%s and an arbitrary PID. If this mapping is set, then the header PCR PID is set to this value, and PCR is attached to the stream with this PID. Note: the current implementation also attaches PCR to the video stream, so this may be inefficient. Co-authored-by: Jordan Yelloz <jordan.yelloz@collabora.com> Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5726>
268 lines
9.1 KiB
C
268 lines
9.1 KiB
C
/*
|
|
* Copyright 2006 BBC and Fluendo S.A.
|
|
*
|
|
* This library is licensed under 3 different licenses and you
|
|
* can choose to use it under the terms of any one of them. The
|
|
* three licenses are the MPL 1.1, the LGPL, and the MIT license.
|
|
*
|
|
* MPL:
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License
|
|
* Version 1.1 (the "License"); you may not use this file except in
|
|
* compliance with the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/.
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS"
|
|
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing rights and limitations
|
|
* under the License.
|
|
*
|
|
* LGPL:
|
|
*
|
|
* 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.
|
|
*
|
|
* MIT:
|
|
*
|
|
* Unless otherwise indicated, Source Code is licensed under MIT license.
|
|
* See further explanation attached in License Statement (distributed in the file
|
|
* LICENSE).
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is furnished to do
|
|
* so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
* SPDX-License-Identifier: MPL-1.1 OR MIT OR LGPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef __TSMUXSTREAM_H__
|
|
#define __TSMUXSTREAM_H__
|
|
|
|
#include <glib.h>
|
|
#include <gst/mpegts/mpegts.h>
|
|
|
|
#include "tsmuxcommon.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef enum TsMuxStreamType TsMuxStreamType;
|
|
typedef enum TsMuxStreamState TsMuxStreamState;
|
|
typedef struct TsMuxStreamBuffer TsMuxStreamBuffer;
|
|
|
|
typedef void (*TsMuxStreamBufferReleaseFunc) (guint8 *data, void *user_data);
|
|
typedef void (*TsMuxStreamGetESDescriptorsFunc) (TsMuxStream *stream, GstMpegtsPMTStream *pmt_stream, gpointer user_data);
|
|
|
|
/* Stream type assignments
|
|
*
|
|
* 0x00 ITU-T | ISO/IEC Reserved
|
|
* 0x01 ISO/IEC 11172 Video
|
|
* 0x02 ITU-T Rec. H.262 | ISO/IEC 13818-2 Video or
|
|
* ISO/IEC 11172-2 constrained parameter video
|
|
* stream
|
|
* 0x03 ISO/IEC 11172 Audio
|
|
* 0x04 ISO/IEC 13818-3 Audio
|
|
* 0x05 ITU-T Rec. H.222.0 | ISO/IEC 13818-1
|
|
* private_sections
|
|
* 0x06 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 PES
|
|
* packets containing private data
|
|
* 0x07 ISO/IEC 13522 MHEG
|
|
* 0x08 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Annex A
|
|
* DSM CC
|
|
* 0x09 ITU-T Rec. H.222.1
|
|
* 0x0A ISO/IEC 13818-6 type A
|
|
* 0x0B ISO/IEC 13818-6 type B
|
|
* 0x0C ISO/IEC 13818-6 type C
|
|
* 0x0D ISO/IEC 13818-6 type D
|
|
* 0x0E ISO/IEC 13818-1 auxiliary
|
|
* 0x0F-0x7F ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved
|
|
* 0x80-0xFF User Private
|
|
*/
|
|
enum TsMuxStreamType {
|
|
TSMUX_ST_RESERVED = 0x00,
|
|
TSMUX_ST_VIDEO_MPEG1 = 0x01,
|
|
TSMUX_ST_VIDEO_MPEG2 = 0x02,
|
|
TSMUX_ST_AUDIO_MPEG1 = 0x03,
|
|
TSMUX_ST_AUDIO_MPEG2 = 0x04,
|
|
TSMUX_ST_PRIVATE_SECTIONS = 0x05,
|
|
TSMUX_ST_PRIVATE_DATA = 0x06,
|
|
TSMUX_ST_MHEG = 0x07,
|
|
TSMUX_ST_DSMCC = 0x08,
|
|
TSMUX_ST_H222_1 = 0x09,
|
|
|
|
/* later extensions */
|
|
TSMUX_ST_AUDIO_AAC = 0x0f,
|
|
TSMUX_ST_VIDEO_MPEG4 = 0x10,
|
|
TSMUX_ST_VIDEO_H264 = 0x1b,
|
|
TSMUX_ST_VIDEO_HEVC = 0x24,
|
|
TSMUX_ST_VIDEO_JP2K = 0x21,
|
|
|
|
/* private stream types */
|
|
TSMUX_ST_PS_AUDIO_AC3 = 0x81,
|
|
TSMUX_ST_PS_AUDIO_DTS = 0x8a,
|
|
TSMUX_ST_PS_AUDIO_LPCM = 0x8b,
|
|
TSMUX_ST_PS_DVB_SUBPICTURE = 0x8c,
|
|
TSMUX_ST_PS_TELETEXT = 0x8d,
|
|
TSMUX_ST_PS_KLV = 0x8e, /* only used internally */
|
|
TSMUX_ST_PS_OPUS = 0x8f, /* only used internally */
|
|
TSMUX_ST_PS_DVD_SUBPICTURE = 0xff,
|
|
|
|
/* Non-standard definitions */
|
|
TSMUX_ST_VIDEO_DIRAC = 0xD1
|
|
};
|
|
|
|
enum TsMuxStreamState {
|
|
TSMUX_STREAM_STATE_HEADER,
|
|
TSMUX_STREAM_STATE_PACKET
|
|
};
|
|
|
|
/* TsMuxStream receives elementary streams for parsing */
|
|
struct TsMuxStream {
|
|
TsMuxStreamState state;
|
|
TsMuxPacketInfo pi;
|
|
guint stream_type;
|
|
|
|
/* stream_id (13818-1) */
|
|
guint8 id;
|
|
/* extended stream id (13818-1 Amdt 2) */
|
|
guint8 id_extended;
|
|
|
|
struct TsMuxProgram *program;
|
|
|
|
/* requested index in the PMT */
|
|
gint pmt_index;
|
|
|
|
gboolean is_video_stream;
|
|
|
|
/* data available for writing out
|
|
* and total sum of sizes */
|
|
GList *buffers;
|
|
guint32 bytes_avail;
|
|
|
|
/* current data buffer being consumed
|
|
* and amount already consumed */
|
|
TsMuxStreamBuffer *cur_buffer;
|
|
guint32 cur_buffer_consumed;
|
|
|
|
/* helper to release collected buffers */
|
|
TsMuxStreamBufferReleaseFunc buffer_release;
|
|
|
|
/* Override or extend the default Elementary Stream descriptors */
|
|
TsMuxStreamGetESDescriptorsFunc get_es_descrs;
|
|
void *get_es_descrs_data;
|
|
|
|
/* optional fixed PES size for stream type */
|
|
guint16 pes_payload_size;
|
|
/* current PES payload size being written */
|
|
guint32 cur_pes_payload_size;
|
|
/* ... of which already this much written */
|
|
guint32 pes_bytes_written;
|
|
|
|
/* PTS/DTS to write if the flags in the packet info are set */
|
|
/* in MPEG PTS clock time */
|
|
gint64 pts;
|
|
gint64 dts;
|
|
|
|
/* last ts written, or maybe next one ... ?! */
|
|
gint64 last_dts;
|
|
gint64 last_pts;
|
|
|
|
gint64 first_ts;
|
|
|
|
/* count of programs using this as PCR */
|
|
gint pcr_ref;
|
|
/* Next time PCR should be written */
|
|
gint64 next_pcr;
|
|
|
|
/* audio parameters for stream
|
|
* (used in stream descriptor) */
|
|
gint audio_sampling;
|
|
gint audio_channels;
|
|
gint audio_bitrate;
|
|
|
|
gboolean is_dvb_sub;
|
|
gchar language[4];
|
|
|
|
gboolean is_meta;
|
|
gboolean is_audio;
|
|
|
|
/* Opus */
|
|
gboolean is_opus;
|
|
guint8 opus_channel_config[1 + 2 + 1 + 1 + 255];
|
|
gsize opus_channel_config_len;
|
|
|
|
/* Jpeg2000 */
|
|
gint32 horizontal_size;
|
|
gint32 vertical_size;
|
|
gint32 den;
|
|
gint32 num;
|
|
/* Maximum bitrate box */
|
|
guint32 max_bitrate;
|
|
guint16 profile_and_level;
|
|
gboolean interlace_mode;
|
|
guint8 color_spec;
|
|
};
|
|
|
|
/* stream management */
|
|
TsMuxStream * tsmux_stream_new (guint16 pid, guint stream_type, guint stream_number);
|
|
void tsmux_stream_free (TsMuxStream *stream);
|
|
|
|
guint16 tsmux_stream_get_pid (TsMuxStream *stream);
|
|
|
|
void tsmux_stream_set_buffer_release_func (TsMuxStream *stream,
|
|
TsMuxStreamBufferReleaseFunc func);
|
|
|
|
void tsmux_stream_set_get_es_descriptors_func (TsMuxStream *stream,
|
|
TsMuxStreamGetESDescriptorsFunc func,
|
|
void *user_data);
|
|
|
|
/* Add a new buffer to the pool of available bytes. If pts or dts are not -1, they
|
|
* indicate the PTS or DTS of the first access unit within this packet */
|
|
void tsmux_stream_add_data (TsMuxStream *stream, guint8 *data, guint len,
|
|
void *user_data, gint64 pts, gint64 dts,
|
|
gboolean random_access);
|
|
|
|
void tsmux_stream_pcr_ref (TsMuxStream *stream);
|
|
void tsmux_stream_pcr_unref (TsMuxStream *stream);
|
|
gboolean tsmux_stream_is_pcr (TsMuxStream *stream);
|
|
|
|
gboolean tsmux_stream_at_pes_start (TsMuxStream *stream);
|
|
void tsmux_stream_get_es_descrs (TsMuxStream *stream, GstMpegtsPMTStream *pmt_stream);
|
|
void tsmux_stream_default_get_es_descrs (TsMuxStream * stream, GstMpegtsPMTStream * pmt_stream);
|
|
|
|
gint tsmux_stream_bytes_in_buffer (TsMuxStream *stream);
|
|
gint tsmux_stream_bytes_avail (TsMuxStream *stream);
|
|
gboolean tsmux_stream_initialize_pes_packet (TsMuxStream *stream);
|
|
gboolean tsmux_stream_get_data (TsMuxStream *stream, guint8 *buf, guint len);
|
|
|
|
gint64 tsmux_stream_get_pts (TsMuxStream *stream);
|
|
gint64 tsmux_stream_get_dts (TsMuxStream *stream);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|