/* * "Real" compatible muxer and demuxer. * Copyright (c) 2000, 2001 Fabrice Bellard. * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */#ifndef FFMPEG_RM_H#define FFMPEG_RM_H#include "avformat.h"typedef struct {    int nb_packets;    int packet_total_size;    int packet_max_size;    /* codec related output */    int bit_rate;    float frame_rate;    int nb_frames;    /* current frame number */    int total_frames; /* total number of frames */    int num;    AVCodecContext *enc;} StreamInfo;typedef struct {    StreamInfo streams[2];    StreamInfo *audio_stream, *video_stream;    int data_pos; /* position of the data after the header */    int nb_packets;    int old_format;    int current_stream;    int remaining_len;    uint8_t *videobuf; ///< place to store merged video frame    int videobufsize;  ///< current assembled frame size    int videobufpos;   ///< position for the next slice in the video buffer    int curpic_num;    ///< picture number of current frame    int cur_slice, slices;    int64_t pktpos;    ///< first slice position in file    /// Audio descrambling matrix parameters    uint8_t *audiobuf; ///< place to store reordered audio data    int64_t audiotimestamp; ///< Audio packet timestamp    int sub_packet_cnt; // Subpacket counter, used while reading    int sub_packet_size, sub_packet_h, coded_framesize; ///< Descrambling parameters from container    int audio_stream_num; ///< Stream number for audio packets    int audio_pkt_cnt; ///< Output packet counter    int audio_framesize; /// Audio frame size from container    int sub_packet_lengths[16]; /// Length of each aac subpacket} RMContext;/** * Read the MDPR chunk, which contains stream-specific codec initialization * parameters. * * @param s context containing RMContext and ByteIOContext for stream reading * @param st the stream that the MDPR chunk belongs to and where to store the *           parameters read from the chunk into * @return 0 on success, errno codes on error */int ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVStream *st);/** * Parse one rm-stream packet from the input bytestream. * * @param s context containing RMContext and ByteIOContext for stream reading * @param st stream to which the packet to be read belongs * @param len packet length to read from the input * @param pkt packet location to store the parsed packet data * @param seq pointer to an integer containing the sequence number, may be *            updated * @param flags pointer to an integer containing the packet flags, may be                updated * @param ts pointer to timestamp, may be updated * @return 0 on success, errno codes on error */int ff_rm_parse_packet (AVFormatContext *s, AVStream *st, int len,                        AVPacket *pkt, int *seq, int *flags, int64_t *ts);/** * Retrieve one cached packet from the rm-context. The real container can * store several packets (as interpreted by the codec) in a single container * packet, which means the demuxer holds some back when the first container * packet is parsed and returned. The result is that rm->audio_pkt_cnt is * a positive number, the amount of cached packets. Using this function, each * of those packets can be retrieved sequentially. * * @param s context containing RMContext and ByteIOContext for stream reading * @param st stream that this packet belongs to * @param pkt location to store the packet data */void ff_rm_retrieve_cache (AVFormatContext *s, AVStream *st, AVPacket *pkt);#endif /* FFMPEG_RM_H */