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81 lines
3.3 KiB
81 lines
3.3 KiB
/* |
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* "Real" compatible muxer and demuxer. |
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* Copyright (c) 2000, 2001 Fabrice Bellard. |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg 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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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVFORMAT_RM_H |
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#define AVFORMAT_RM_H |
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#include "avformat.h" |
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/*< input format for Realmedia-style RTSP streams */ |
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extern AVInputFormat rdt_demuxer; |
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/** |
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* Read the MDPR chunk, which contains stream-specific codec initialization |
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* parameters. |
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* |
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* @param s context containing RMContext and ByteIOContext for stream reading |
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* @param pb context to read the data from |
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* @param st the stream that the MDPR chunk belongs to and where to store the |
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* parameters read from the chunk into |
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* @param codec_data_size size of the MDPR chunk |
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* @return 0 on success, errno codes on error |
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*/ |
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int ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb, |
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AVStream *st, int codec_data_size); |
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/** |
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* Parse one rm-stream packet from the input bytestream. |
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* |
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* @param s context containing RMContext and ByteIOContext for stream reading |
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* @param pb context to read the data from |
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* @param st stream to which the packet to be read belongs |
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* @param len packet length to read from the input |
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* @param pkt packet location to store the parsed packet data |
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* @param seq pointer to an integer containing the sequence number, may be |
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* updated |
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* @param flags pointer to an integer containing the packet flags, may be |
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updated |
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* @param ts pointer to timestamp, may be updated |
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* @return >=0 on success (where >0 indicates there are cached samples that |
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* can be retrieved with subsequent calls to ff_rm_retrieve_cache()), |
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* errno codes on error |
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*/ |
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int ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb, |
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AVStream *st, int len, |
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AVPacket *pkt, int *seq, int *flags, int64_t *ts); |
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/** |
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* Retrieve one cached packet from the rm-context. The real container can |
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* store several packets (as interpreted by the codec) in a single container |
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* packet, which means the demuxer holds some back when the first container |
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* packet is parsed and returned. The result is that rm->audio_pkt_cnt is |
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* a positive number, the amount of cached packets. Using this function, each |
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* of those packets can be retrieved sequentially. |
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* |
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* @param s context containing RMContext and ByteIOContext for stream reading |
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* @param pb context to read the data from |
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* @param st stream that this packet belongs to |
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* @param pkt location to store the packet data |
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*/ |
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void ff_rm_retrieve_cache (AVFormatContext *s, ByteIOContext *pb, |
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AVStream *st, AVPacket *pkt); |
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#endif /* AVFORMAT_RM_H */
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