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739 lines
21 KiB
C
739 lines
21 KiB
C
/* MPEG-PS muxer plugin for GStreamer
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* Copyright 2008 Lin YANG <oxcsnicho@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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* Unless otherwise indicated, Source Code is licensed under MIT license.
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* See further explanation attached in License Statement (distributed in the file
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* LICENSE).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "psmuxcommon.h"
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#include "psmuxstream.h"
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#include "psmux.h"
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static guint8 psmux_stream_pes_header_length (PsMuxStream * stream);
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static void psmux_stream_write_pes_header (PsMuxStream * stream, guint8 * data);
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static void psmux_stream_find_pts_dts_within (PsMuxStream * stream, guint bound,
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gint64 * pts, gint64 * dts);
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/**
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* psmux_stream_new:
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* @pid: a PID
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* @stream_type: the stream type
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*
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* Create a new stream with type = @stream_type, assign stream id accordingly
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*
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* Returns: a new #PsMuxStream.
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*/
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PsMuxStream *
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psmux_stream_new (PsMux * mux, PsMuxStreamType stream_type)
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{
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PsMuxStream *stream = g_slice_new0 (PsMuxStream);
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PsMuxStreamIdInfo *info = &(mux->id_info);
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stream->stream_type = stream_type;
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stream->is_audio_stream = FALSE;
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stream->is_video_stream = FALSE;
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stream->stream_id = 0;
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stream->max_buffer_size = 0;
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switch (stream_type) {
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/* MPEG AUDIO */
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case PSMUX_ST_AUDIO_MPEG1:
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case PSMUX_ST_AUDIO_MPEG2:
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stream->max_buffer_size = 2484; /* ISO/IEC 13818 2.5.2.4 */
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case PSMUX_ST_AUDIO_AAC:
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if (info->id_mpga > PSMUX_STREAM_ID_MPGA_MAX)
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break;
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stream->stream_id = info->id_mpga++;
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stream->stream_id_ext = 0;
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stream->is_audio_stream = TRUE;
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break;
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/* MPEG VIDEO */
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case PSMUX_ST_VIDEO_MPEG1:
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case PSMUX_ST_VIDEO_MPEG2:
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case PSMUX_ST_VIDEO_MPEG4:
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case PSMUX_ST_VIDEO_H264:
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if (info->id_mpgv > PSMUX_STREAM_ID_MPGV_MAX)
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break;
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stream->stream_id = info->id_mpgv++;
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stream->stream_id_ext = 0;
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stream->is_video_stream = TRUE;
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break;
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/* AC3 / A52 */
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case PSMUX_ST_PS_AUDIO_AC3:
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if (info->id_ac3 > PSMUX_STREAM_ID_AC3_MAX)
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break;
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stream->stream_id = PSMUX_PRIVATE_STREAM_1;
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stream->stream_id_ext = info->id_ac3++;
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stream->is_audio_stream = TRUE;
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/* AC3 requires data alignment */
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stream->pi.flags |= PSMUX_PACKET_FLAG_PES_DATA_ALIGN;
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break;
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/* TODO: SPU missing */
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#if 0
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case spu:
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if (info->id_spu > PSMUX_STREAM_ID_SPU_MAX)
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break;
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return info->id_spu++;
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#endif
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/* DTS */
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case PSMUX_ST_PS_AUDIO_DTS:
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if (info->id_dts > PSMUX_STREAM_ID_DTS_MAX)
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break;
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stream->stream_id = PSMUX_PRIVATE_STREAM_1;
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stream->stream_id_ext = info->id_dts++;
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stream->is_audio_stream = TRUE;
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break;
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/* LPCM */
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case PSMUX_ST_PS_AUDIO_LPCM:
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if (info->id_lpcm > PSMUX_STREAM_ID_LPCM_MAX)
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break;
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stream->stream_id = PSMUX_PRIVATE_STREAM_1;
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stream->stream_id_ext = info->id_lpcm++;
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stream->is_audio_stream = TRUE;
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break;
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case PSMUX_ST_VIDEO_DIRAC:
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if (info->id_dirac > PSMUX_STREAM_ID_DIRAC_MAX)
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break;
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stream->stream_id = PSMUX_EXTENDED_STREAM;
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stream->stream_id_ext = info->id_dirac++;
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stream->is_video_stream = TRUE;
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break;
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default:
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g_critical ("Stream type 0x%0x not yet implemented", stream_type);
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break;
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}
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if (stream->stream_id == 0) {
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g_critical ("Number of elementary streams of type %04x exceeds maximum",
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stream->stream_type);
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g_slice_free (PsMuxStream, stream);
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return NULL;
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}
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/* XXX: Are private streams also using stream_id_ext? */
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if (stream->stream_id == PSMUX_EXTENDED_STREAM)
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stream->pi.flags |= PSMUX_PACKET_FLAG_PES_EXT_STREAMID;
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/* Are these useful at all? */
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if (stream->stream_id == PSMUX_PROGRAM_STREAM_MAP ||
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stream->stream_id == PSMUX_PADDING_STREAM ||
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stream->stream_id == PSMUX_PRIVATE_STREAM_2 ||
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stream->stream_id == PSMUX_ECM ||
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stream->stream_id == PSMUX_EMM ||
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stream->stream_id == PSMUX_PROGRAM_STREAM_DIRECTORY ||
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stream->stream_id == PSMUX_DSMCC_STREAM ||
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stream->stream_id == PSMUX_ITU_T_H222_1_TYPE_E)
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stream->pi.flags &= ~PSMUX_PACKET_FLAG_PES_FULL_HEADER;
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else
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stream->pi.flags |= PSMUX_PACKET_FLAG_PES_FULL_HEADER;
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stream->buffers = NULL;
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stream->bytes_avail = 0;
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stream->cur_buffer = NULL;
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stream->cur_buffer_consumed = 0;
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stream->cur_pes_payload_size = 0;
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stream->pts = -1;
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stream->dts = -1;
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stream->last_pts = -1;
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/* These fields are set by gstreamer */
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stream->audio_sampling = 0;
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stream->audio_channels = 0;
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stream->audio_bitrate = 0;
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if (stream->max_buffer_size == 0) {
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/* XXX: VLC'S VALUE. Better default? */
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if (stream->is_video_stream)
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stream->max_buffer_size = 400 * 1024;
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else if (stream->is_audio_stream)
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stream->max_buffer_size = 4 * 1024;
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else
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g_assert_not_reached ();
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}
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return stream;
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}
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/**
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* psmux_stream_free:
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* @stream: a #PsMuxStream
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*
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* Free the resources of @stream.
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*/
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void
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psmux_stream_free (PsMuxStream * stream)
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{
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g_return_if_fail (stream != NULL);
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if (psmux_stream_bytes_in_buffer (stream)) {
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g_warning ("Freeing stream with data not yet processed");
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}
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g_slice_free (PsMuxStream, stream);
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}
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/* Advance the current packet stream position by len bytes.
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* Mustn't consume more than available in the current packet */
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static void
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psmux_stream_consume (PsMuxStream * stream, guint len)
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{
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g_assert (stream->cur_buffer != NULL);
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g_assert (len <= stream->cur_buffer->map.size - stream->cur_buffer_consumed);
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stream->cur_buffer_consumed += len;
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stream->bytes_avail -= len;
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if (stream->cur_buffer_consumed == 0)
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return;
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if (stream->cur_buffer->pts != -1)
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stream->last_pts = stream->cur_buffer->pts;
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if (stream->cur_buffer_consumed == stream->cur_buffer->map.size) {
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/* Current packet is completed, move along */
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stream->buffers = g_list_delete_link (stream->buffers, stream->buffers);
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gst_buffer_unmap (stream->cur_buffer->buf, &stream->cur_buffer->map);
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gst_buffer_unref (stream->cur_buffer->buf);
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g_slice_free (PsMuxStreamBuffer, stream->cur_buffer);
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stream->cur_buffer = NULL;
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}
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}
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/**
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* psmux_stream_bytes_in_buffer:
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* @stream: a #PsMuxStream
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*
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* Calculate how much bytes are in the buffer.
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*
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* Returns: The number of bytes in the buffer.
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*/
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gint
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psmux_stream_bytes_in_buffer (PsMuxStream * stream)
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{
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g_return_val_if_fail (stream != NULL, 0);
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return stream->bytes_avail;
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}
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/**
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* psmux_stream_get_data:
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* @stream: a #PsMuxStream
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* @buf: a buffer to hold the result
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* @len: the length of @buf
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*
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* Write a PES packet to @buf, up to @len bytes
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*
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* Returns: number of bytes having been written, 0 if error
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*/
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guint
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psmux_stream_get_data (PsMuxStream * stream, guint8 * buf, guint len)
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{
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guint8 pes_hdr_length;
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guint w;
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g_return_val_if_fail (stream != NULL, FALSE);
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g_return_val_if_fail (buf != NULL, FALSE);
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g_return_val_if_fail (len >= PSMUX_PES_MAX_HDR_LEN, FALSE);
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stream->cur_pes_payload_size =
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MIN (psmux_stream_bytes_in_buffer (stream), len - PSMUX_PES_MAX_HDR_LEN);
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/* Note that we cannot make a better estimation of the header length for the
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* time being; because the header length is dependent on whether we can find a
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* timestamp in the upcoming buffers, which in turn depends on
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* cur_pes_payload_size, which is exactly what we want to decide.
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*/
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psmux_stream_find_pts_dts_within (stream, stream->cur_pes_payload_size,
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&stream->pts, &stream->dts);
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/* clear pts/dts flag */
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stream->pi.flags &= ~(PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS |
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PSMUX_PACKET_FLAG_PES_WRITE_PTS);
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/* update pts/dts flag */
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if (stream->pts != -1 && stream->dts != -1)
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stream->pi.flags |= PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS;
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else {
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if (stream->pts != -1)
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stream->pi.flags |= PSMUX_PACKET_FLAG_PES_WRITE_PTS;
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}
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pes_hdr_length = psmux_stream_pes_header_length (stream);
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/* write pes header */
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GST_LOG ("Writing PES header of length %u and payload %d",
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pes_hdr_length, stream->cur_pes_payload_size);
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psmux_stream_write_pes_header (stream, buf);
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buf += pes_hdr_length;
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w = stream->cur_pes_payload_size; /* number of bytes of payload to write */
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while (w > 0) {
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guint32 avail;
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guint8 *cur;
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if (stream->cur_buffer == NULL) {
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/* Start next packet */
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if (stream->buffers == NULL)
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return FALSE;
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stream->cur_buffer = (PsMuxStreamBuffer *) (stream->buffers->data);
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stream->cur_buffer_consumed = 0;
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}
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/* Take as much as we can from the current buffer */
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avail = stream->cur_buffer->map.size - stream->cur_buffer_consumed;
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cur = stream->cur_buffer->map.data + stream->cur_buffer_consumed;
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if (avail < w) {
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memcpy (buf, cur, avail);
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psmux_stream_consume (stream, avail);
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buf += avail;
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w -= avail;
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} else {
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memcpy (buf, cur, w);
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psmux_stream_consume (stream, w);
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w = 0;
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}
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}
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return pes_hdr_length + stream->cur_pes_payload_size;
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}
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static guint8
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psmux_stream_pes_header_length (PsMuxStream * stream)
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{
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guint8 packet_len;
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/* Calculate the length of the header for this stream */
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/* start_code prefix + stream_id + pes_packet_length = 6 bytes */
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packet_len = 6;
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_FULL_HEADER) {
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/* For a PES 'full header' we have at least 3 more bytes,
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* and then more based on flags */
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packet_len += 3;
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS) {
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packet_len += 10;
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} else if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_WRITE_PTS) {
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packet_len += 5;
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}
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_EXT_STREAMID) {
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/* Need basic extension flags (1 byte), plus 2 more bytes for the
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* length + extended stream id */
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packet_len += 3;
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}
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}
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return packet_len;
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}
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/* Find a PTS/DTS to write into the pes header within the next bound bytes
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* of the data */
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static void
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psmux_stream_find_pts_dts_within (PsMuxStream * stream, guint bound,
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gint64 * pts, gint64 * dts)
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{
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/* 1. When there are at least one buffer then output the first buffer with
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* pts/dts
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* 2. If the bound is too small to include even one buffer, output the pts/dts
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* of that buffer.
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*/
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GList *cur;
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*pts = -1;
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*dts = -1;
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for (cur = g_list_first (stream->buffers); cur != NULL;
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cur = g_list_next (cur)) {
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PsMuxStreamBuffer *curbuf = cur->data;
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/* FIXME: This isn't quite correct - if the 'bound' is within this
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* buffer, we don't know if the timestamp is before or after the split
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* so we shouldn't return it */
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if (bound <= curbuf->map.size) {
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*pts = curbuf->pts;
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*dts = curbuf->dts;
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return;
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}
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/* Have we found a buffer with pts/dts set? */
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if (curbuf->pts != -1 || curbuf->dts != -1) {
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*pts = curbuf->pts;
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*dts = curbuf->dts;
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return;
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}
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bound -= curbuf->map.size;
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}
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}
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static void
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psmux_stream_write_pes_header (PsMuxStream * stream, guint8 * data)
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{
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guint16 length_to_write;
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guint8 hdr_len = psmux_stream_pes_header_length (stream);
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/* start_code prefix + stream_id + pes_packet_length = 6 bytes */
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data[0] = 0x00;
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data[1] = 0x00;
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data[2] = 0x01;
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data[3] = stream->stream_id;
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data += 4;
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length_to_write = hdr_len - 6 + stream->cur_pes_payload_size;
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psmux_put16 (&data, length_to_write);
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_FULL_HEADER) {
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guint8 flags = 0;
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/* Not scrambled, original, not-copyrighted, data_alignment specified by flag */
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flags = 0x81;
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_DATA_ALIGN)
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flags |= 0x04; /* Enable data_alignment_indicator */
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*data++ = flags;
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/* Flags */
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flags = 0;
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS)
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flags |= 0xC0;
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else if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_WRITE_PTS)
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flags |= 0x80;
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_EXT_STREAMID)
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flags |= 0x01; /* Enable PES_extension_flag */
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*data++ = flags;
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/* Header length is the total pes length,
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* minus the 9 bytes of start codes, flags + hdr_len */
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g_return_if_fail (hdr_len >= 9);
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*data++ = (hdr_len - 9);
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS) {
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psmux_put_ts (&data, 0x3, stream->pts);
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psmux_put_ts (&data, 0x1, stream->dts);
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} else if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_WRITE_PTS) {
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psmux_put_ts (&data, 0x2, stream->pts);
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}
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if (stream->pi.flags & PSMUX_PACKET_FLAG_PES_EXT_STREAMID) {
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guint8 ext_len;
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flags = 0x0f; /* preceding flags all 0 | (reserved bits) | PES_extension_flag_2 */
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*data++ = flags;
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ext_len = 1; /* Only writing 1 byte into the extended fields */
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*data++ = 0x80 | ext_len; /* marker | PES_extension_field_length */
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*data++ = 0x80 | stream->stream_id_ext; /* stream_id_extension_flag | extended_stream_id */
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}
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}
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}
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/**
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* psmux_stream_add_data:
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* @stream: a #PsMuxStream
|
|
* @buffer: (transfer full): buffer with data to add
|
|
* @pts: PTS of access unit in @data
|
|
* @dts: DTS of access unit in @data
|
|
*
|
|
* Submit @len bytes of @data into @stream. @pts and @dts can be set to the
|
|
* timestamp (against a 90Hz clock) of the first access unit in @data. A
|
|
* timestamp of -1 for @pts or @dts means unknown.
|
|
*
|
|
* This function takes ownership of @buffer.
|
|
*/
|
|
void
|
|
psmux_stream_add_data (PsMuxStream * stream, GstBuffer * buffer,
|
|
gint64 pts, gint64 dts, gboolean keyunit)
|
|
{
|
|
PsMuxStreamBuffer *packet;
|
|
|
|
g_return_if_fail (stream != NULL);
|
|
|
|
packet = g_slice_new (PsMuxStreamBuffer);
|
|
packet->buf = buffer;
|
|
|
|
if (!gst_buffer_map (packet->buf, &packet->map, GST_MAP_READ)) {
|
|
GST_ERROR ("Failed to map buffer for reading");
|
|
gst_buffer_unref (packet->buf);
|
|
g_slice_free (PsMuxStreamBuffer, packet);
|
|
return;
|
|
}
|
|
|
|
packet->keyunit = keyunit;
|
|
packet->pts = pts;
|
|
packet->dts = dts;
|
|
|
|
if (stream->bytes_avail == 0)
|
|
stream->last_pts = pts;
|
|
|
|
stream->bytes_avail += packet->map.size;
|
|
/* FIXME: perhaps use GstQueueArray instead? */
|
|
stream->buffers = g_list_append (stream->buffers, packet);
|
|
|
|
}
|
|
|
|
/**
|
|
* psmux_stream_get_es_descrs:
|
|
* @stream: a #PsMuxStream
|
|
* @buf: a buffer to hold the ES descriptor
|
|
* @len: the length used in @buf
|
|
*
|
|
* Write an Elementary Stream Descriptor for @stream into @buf. the number of
|
|
* bytes consumed in @buf will be updated in @len.
|
|
*
|
|
* @buf and @len must be at least #PSMUX_MIN_ES_DESC_LEN.
|
|
*/
|
|
void
|
|
psmux_stream_get_es_descrs (PsMuxStream * stream, guint8 * buf, guint16 * len)
|
|
{
|
|
guint8 *pos;
|
|
|
|
g_return_if_fail (stream != NULL);
|
|
|
|
if (buf == NULL) {
|
|
if (len != NULL)
|
|
*len = 0;
|
|
return;
|
|
}
|
|
|
|
/* Based on the stream type, write out any descriptors to go in the
|
|
* PMT ES_info field */
|
|
pos = buf;
|
|
|
|
/* tag (registration_descriptor), length, format_identifier */
|
|
switch (stream->stream_type) {
|
|
case PSMUX_ST_AUDIO_AAC:
|
|
/* FIXME */
|
|
break;
|
|
case PSMUX_ST_VIDEO_MPEG4:
|
|
/* FIXME */
|
|
break;
|
|
case PSMUX_ST_VIDEO_H264:
|
|
*pos++ = 0x05;
|
|
*pos++ = 8;
|
|
*pos++ = 0x48; /* 'H' */
|
|
*pos++ = 0x44; /* 'D' */
|
|
*pos++ = 0x4D; /* 'M' */
|
|
*pos++ = 0x56; /* 'V' */
|
|
/* FIXME : Not sure about this additional_identification_info */
|
|
*pos++ = 0xFF;
|
|
*pos++ = 0x1B;
|
|
*pos++ = 0x44;
|
|
*pos++ = 0x3F;
|
|
break;
|
|
case PSMUX_ST_VIDEO_DIRAC:
|
|
*pos++ = 0x05;
|
|
*pos++ = 4;
|
|
*pos++ = 0x64; /* 'd' */
|
|
*pos++ = 0x72; /* 'r' */
|
|
*pos++ = 0x61; /* 'a' */
|
|
*pos++ = 0x63; /* 'c' */
|
|
break;
|
|
case PSMUX_ST_PS_AUDIO_AC3:
|
|
{
|
|
*pos++ = 0x05;
|
|
*pos++ = 4;
|
|
*pos++ = 0x41; /* 'A' */
|
|
*pos++ = 0x43; /* 'C' */
|
|
*pos++ = 0x2D; /* '-' */
|
|
*pos++ = 0x33; /* '3' */
|
|
|
|
/* audio_stream_descriptor () | ATSC A/52-2001 Annex A
|
|
*
|
|
* descriptor_tag 8 uimsbf
|
|
* descriptor_length 8 uimsbf
|
|
* sample_rate_code 3 bslbf
|
|
* bsid 5 bslbf
|
|
* bit_rate_code 6 bslbf
|
|
* surround_mode 2 bslbf
|
|
* bsmod 3 bslbf
|
|
* num_channels 4 bslbf
|
|
* full_svc 1 bslbf
|
|
* langcod 8 bslbf
|
|
* [...]
|
|
*/
|
|
*pos++ = 0x81;
|
|
*pos++ = 0x04;
|
|
|
|
/* 3 bits sample_rate_code, 5 bits hardcoded bsid (default ver 8) */
|
|
switch (stream->audio_sampling) {
|
|
case 48000:
|
|
*pos++ = 0x08;
|
|
break;
|
|
case 44100:
|
|
*pos++ = 0x28;
|
|
break;
|
|
case 32000:
|
|
*pos++ = 0x48;
|
|
break;
|
|
default:
|
|
*pos++ = 0xE8;
|
|
break; /* 48, 44.1 or 32 Khz */
|
|
}
|
|
|
|
/* 1 bit bit_rate_limit, 5 bits bit_rate_code, 2 bits suround_mode */
|
|
switch (stream->audio_bitrate) {
|
|
case 32:
|
|
*pos++ = 0x00 << 2;
|
|
break;
|
|
case 40:
|
|
*pos++ = 0x01 << 2;
|
|
break;
|
|
case 48:
|
|
*pos++ = 0x02 << 2;
|
|
break;
|
|
case 56:
|
|
*pos++ = 0x03 << 2;
|
|
break;
|
|
case 64:
|
|
*pos++ = 0x04 << 2;
|
|
break;
|
|
case 80:
|
|
*pos++ = 0x05 << 2;
|
|
break;
|
|
case 96:
|
|
*pos++ = 0x06 << 2;
|
|
break;
|
|
case 112:
|
|
*pos++ = 0x07 << 2;
|
|
break;
|
|
case 128:
|
|
*pos++ = 0x08 << 2;
|
|
break;
|
|
case 160:
|
|
*pos++ = 0x09 << 2;
|
|
break;
|
|
case 192:
|
|
*pos++ = 0x0A << 2;
|
|
break;
|
|
case 224:
|
|
*pos++ = 0x0B << 2;
|
|
break;
|
|
case 256:
|
|
*pos++ = 0x0C << 2;
|
|
break;
|
|
case 320:
|
|
*pos++ = 0x0D << 2;
|
|
break;
|
|
case 384:
|
|
*pos++ = 0x0E << 2;
|
|
break;
|
|
case 448:
|
|
*pos++ = 0x0F << 2;
|
|
break;
|
|
case 512:
|
|
*pos++ = 0x10 << 2;
|
|
break;
|
|
case 576:
|
|
*pos++ = 0x11 << 2;
|
|
break;
|
|
case 640:
|
|
*pos++ = 0x12 << 2;
|
|
break;
|
|
default:
|
|
*pos++ = 0x32 << 2;
|
|
break; /* 640 Kb/s upper limit */
|
|
}
|
|
|
|
/* 3 bits bsmod, 4 bits num_channels, 1 bit full_svc */
|
|
switch (stream->audio_channels) {
|
|
case 1:
|
|
*pos++ = 0x01 << 1;
|
|
break; /* 1/0 */
|
|
case 2:
|
|
*pos++ = 0x02 << 1;
|
|
break; /* 2/0 */
|
|
case 3:
|
|
*pos++ = 0x0A << 1;
|
|
break; /* <= 3 */
|
|
case 4:
|
|
*pos++ = 0x0B << 1;
|
|
break; /* <= 4 */
|
|
case 5:
|
|
*pos++ = 0x0C << 1;
|
|
break; /* <= 5 */
|
|
case 6:
|
|
default:
|
|
*pos++ = 0x0D << 1;
|
|
break; /* <= 6 */
|
|
}
|
|
|
|
*pos++ = 0x00;
|
|
|
|
break;
|
|
}
|
|
case PSMUX_ST_PS_AUDIO_DTS:
|
|
/* FIXME */
|
|
break;
|
|
case PSMUX_ST_PS_AUDIO_LPCM:
|
|
/* FIXME */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (len)
|
|
*len = (pos - buf);
|
|
}
|
|
|
|
/**
|
|
* psmux_stream_get_pts:
|
|
* @stream: a #PsMuxStream
|
|
*
|
|
* Return the PTS of the last buffer that has had bytes written and
|
|
* which _had_ a PTS in @stream.
|
|
*
|
|
* Returns: the PTS of the last buffer in @stream.
|
|
*/
|
|
guint64
|
|
psmux_stream_get_pts (PsMuxStream * stream)
|
|
{
|
|
g_return_val_if_fail (stream != NULL, -1);
|
|
|
|
return stream->last_pts;
|
|
}
|