/* MPEG-PS muxer plugin for GStreamer * Copyright 2008 Lin YANG * * 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 #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 { guint8 *data; guint32 size; gboolean keyunit; /* PTS & DTS associated with the contents of this buffer */ GstClockTime pts; GstClockTime dts; void *user_data; }; /* 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*/ /* Release function */ PsMuxStreamBufferReleaseFunc buffer_release; /* 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); /* The callback when a buffer is released. Used to unref the buffer in GStreamer */ void psmux_stream_set_buffer_release_func (PsMuxStream *stream, PsMuxStreamBufferReleaseFunc func); /* 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, guint8 *data, guint len, void *user_data, 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 assignemnt */ #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