mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-15 22:01:27 +00:00
207 lines
6.6 KiB
C
207 lines
6.6 KiB
C
/* MPEG-PS muxer plugin for GStreamer
|
|
* Copyright 2008 Lin YANG <oxcsnicho@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
/*
|
|
* Unless otherwise indicated, Source Code is licensed under MIT license.
|
|
* See further explanation attached in License Statement (distributed in the file
|
|
* LICENSE).
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is furnished to do
|
|
* so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
|
|
|
|
#ifndef __PSMUXSTREAM_H__
|
|
#define __PSMUXSTREAM_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
#include "psmuxcommon.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
|
|
typedef void (*PsMuxStreamBufferReleaseFunc) (guint8 *data, void *user_data);
|
|
|
|
enum PsMuxStreamType { /* Table 2-29 in spec */
|
|
PSMUX_ST_RESERVED = 0x00,
|
|
PSMUX_ST_VIDEO_MPEG1 = 0x01,
|
|
PSMUX_ST_VIDEO_MPEG2 = 0x02,
|
|
PSMUX_ST_AUDIO_MPEG1 = 0x03,
|
|
PSMUX_ST_AUDIO_MPEG2 = 0x04,
|
|
PSMUX_ST_PRIVATE_SECTIONS = 0x05,
|
|
PSMUX_ST_PRIVATE_DATA = 0x06,
|
|
PSMUX_ST_MHEG = 0x07,
|
|
PSMUX_ST_DSMCC = 0x08,
|
|
PSMUX_ST_H222_1 = 0x09,
|
|
|
|
/* later extensions */
|
|
PSMUX_ST_AUDIO_AAC = 0x0f,
|
|
PSMUX_ST_VIDEO_MPEG4 = 0x10,
|
|
PSMUX_ST_VIDEO_H264 = 0x1b,
|
|
|
|
/* private stream types */
|
|
PSMUX_ST_PS_AUDIO_AC3 = 0x81,
|
|
PSMUX_ST_PS_AUDIO_DTS = 0x8a,
|
|
PSMUX_ST_PS_AUDIO_LPCM = 0x8b,
|
|
PSMUX_ST_PS_DVD_SUBPICTURE = 0xff,
|
|
|
|
/* Non-standard definitions */
|
|
PSMUX_ST_VIDEO_DIRAC = 0xD1
|
|
};
|
|
|
|
struct PsMuxStreamBuffer
|
|
{
|
|
gboolean keyunit;
|
|
|
|
/* PTS & DTS associated with the contents of this buffer */
|
|
GstClockTime pts;
|
|
GstClockTime dts;
|
|
|
|
GstBuffer *buf;
|
|
GstMapInfo map;
|
|
};
|
|
|
|
/* PsMuxStream receives elementary streams for parsing.
|
|
* Via the write_bytes() method, it can output a PES stream piecemeal */
|
|
struct PsMuxStream{
|
|
PsMuxPacketInfo pi;
|
|
|
|
PsMuxStreamType stream_type;
|
|
guint8 stream_id;
|
|
guint8 stream_id_ext; /* extended stream id (13818-1 Amdt 2) */
|
|
|
|
/* List of data buffers available for writing out */
|
|
GList *buffers;
|
|
guint32 bytes_avail;
|
|
|
|
/* Current data buffer being consumed */
|
|
PsMuxStreamBuffer *cur_buffer;
|
|
guint32 cur_buffer_consumed;
|
|
|
|
/* PES payload */
|
|
guint16 cur_pes_payload_size;
|
|
guint16 pes_bytes_written; /* delete*/
|
|
|
|
/* PTS/DTS to write if the flags in the packet info are set */
|
|
gint64 pts; /* TODO: cur_buffer->pts?*/
|
|
gint64 dts; /* TODO: cur_buffer->dts?*/
|
|
gint64 last_pts;
|
|
|
|
/* stream type */
|
|
gboolean is_video_stream;
|
|
gboolean is_audio_stream;
|
|
|
|
/* for writing descriptors */
|
|
gint audio_sampling;
|
|
gint audio_channels;
|
|
gint audio_bitrate;
|
|
|
|
/* for writing buffer size in system header */
|
|
guint max_buffer_size;
|
|
};
|
|
|
|
/* stream management */
|
|
PsMuxStream* psmux_stream_new (PsMux * mux, PsMuxStreamType stream_type);
|
|
void psmux_stream_free (PsMuxStream *stream);
|
|
|
|
/* 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 psmux_stream_add_data (PsMuxStream *stream,
|
|
GstBuffer * buffer,
|
|
gint64 pts, gint64 dts,
|
|
gboolean keyunit);
|
|
|
|
/* total bytes in buffer */
|
|
gint psmux_stream_bytes_in_buffer (PsMuxStream *stream);
|
|
/* number of bytes of raw data available for writing */
|
|
gint psmux_stream_bytes_avail (PsMuxStream *stream);
|
|
|
|
/* write PES data */
|
|
guint psmux_stream_get_data (PsMuxStream *stream, guint8 *buf, guint len);
|
|
|
|
/* write corresponding descriptors of the stream */
|
|
void psmux_stream_get_es_descrs (PsMuxStream *stream, guint8 *buf, guint16 *len);
|
|
|
|
/* get the pts of stream */
|
|
guint64 psmux_stream_get_pts (PsMuxStream *stream);
|
|
|
|
/* stream_id assignment */
|
|
#define PSMUX_STREAM_ID_MPGA_INIT 0xc0
|
|
#define PSMUX_STREAM_ID_MPGA_MAX 0xcf
|
|
|
|
#define PSMUX_STREAM_ID_MPGV_INIT 0xe0
|
|
#define PSMUX_STREAM_ID_MPGV_MAX 0xef
|
|
|
|
#define PSMUX_STREAM_ID_AC3_INIT 0x80
|
|
#define PSMUX_STREAM_ID_AC3_MAX 0x87
|
|
|
|
#define PSMUX_STREAM_ID_SPU_INIT 0x20
|
|
#define PSMUX_STREAM_ID_SPU_MAX 0x3f
|
|
|
|
#define PSMUX_STREAM_ID_DTS_INIT 0x88
|
|
#define PSMUX_STREAM_ID_DTS_MAX 0x8f
|
|
|
|
#define PSMUX_STREAM_ID_LPCM_INIT 0xa0
|
|
#define PSMUX_STREAM_ID_LPCM_MAX 0xaf
|
|
|
|
#define PSMUX_STREAM_ID_DIRAC_INIT 0x60
|
|
#define PSMUX_STREAM_ID_DIRAC_MAX 0x6f
|
|
|
|
struct PsMuxStreamIdInfo {
|
|
guint8 id_mpga;
|
|
guint8 id_mpgv;
|
|
guint8 id_ac3;
|
|
guint8 id_spu;
|
|
guint8 id_dts;
|
|
guint8 id_lpcm;
|
|
guint8 id_dirac;
|
|
};
|
|
|
|
static inline void
|
|
psmux_stream_id_info_init (PsMuxStreamIdInfo * info)
|
|
{
|
|
g_return_if_fail (info != NULL);
|
|
info->id_mpga = PSMUX_STREAM_ID_MPGA_INIT;
|
|
info->id_mpgv = PSMUX_STREAM_ID_MPGV_INIT;
|
|
info->id_ac3 = PSMUX_STREAM_ID_AC3_INIT;
|
|
info->id_spu = PSMUX_STREAM_ID_SPU_INIT;
|
|
info->id_dts = PSMUX_STREAM_ID_DTS_INIT;
|
|
info->id_lpcm = PSMUX_STREAM_ID_LPCM_INIT;
|
|
info->id_dirac= PSMUX_STREAM_ID_DIRAC_INIT;
|
|
}
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|