X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Finternal.h;h=c8376f7dda162cb510f610e4ccf0202e5943b694;hb=f37174bc1913d534913e8825f1609a637cc4b364;hp=a2e80f2de3e9f06f0393ac9cf252af6ed5e564fb;hpb=dd8ffc1925156720fa0acfc9242c358cee8031e9;p=ffmpeg diff --git a/libavformat/internal.h b/libavformat/internal.h index a2e80f2de3e..c8376f7dda1 100644 --- a/libavformat/internal.h +++ b/libavformat/internal.h @@ -71,8 +71,9 @@ void ff_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int i /** * Add packet to AVFormatContext->packet_buffer list, determining its * interleaved position using compare() function argument. + * @return 0, or < 0 on error */ -void ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt, +int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt, int (*compare)(AVFormatContext *, AVPacket *, AVPacket *)); void ff_read_frame_flush(AVFormatContext *s); @@ -251,4 +252,58 @@ enum CodecID ff_guess_image2_codec(const char *filename); */ int64_t ff_iso8601_to_unix_time(const char *datestr); +/** + * Perform a binary search using av_index_search_timestamp() and + * AVInputFormat.read_timestamp(). + * + * @param target_ts target timestamp in the time base of the given stream + * @param stream_index stream number + */ +int ff_seek_frame_binary(AVFormatContext *s, int stream_index, + int64_t target_ts, int flags); + +/** + * Update cur_dts of all streams based on the given timestamp and AVStream. + * + * Stream ref_st unchanged, others set cur_dts in their native time base. + * Only needed for timestamp wrapping or if (dts not set and pts!=dts). + * @param timestamp new dts expressed in time_base of param ref_st + * @param ref_st reference stream giving time_base of param timestamp + */ +void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp); + +/** + * Perform a binary search using read_timestamp(). + * + * @param target_ts target timestamp in the time base of the given stream + * @param stream_index stream number + */ +int64_t ff_gen_search(AVFormatContext *s, int stream_index, + int64_t target_ts, int64_t pos_min, + int64_t pos_max, int64_t pos_limit, + int64_t ts_min, int64_t ts_max, + int flags, int64_t *ts_ret, + int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t )); + +/** + * Set the pts for a given stream. If the new values would be invalid + * (<= 0), it leaves the AVStream unchanged. + * + * @param s stream + * @param pts_wrap_bits number of bits effectively used by the pts + * (used for wrap control, 33 is the value for MPEG) + * @param pts_num numerator to convert to seconds (MPEG: 1) + * @param pts_den denominator to convert to seconds (MPEG: 90000) + */ +void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits, + unsigned int pts_num, unsigned int pts_den); + +/** + * Add side data to a packet for changing parameters to the given values. + * Parameters set to 0 aren't included in the change. + */ +int ff_add_param_change(AVPacket *pkt, int32_t channels, + uint64_t channel_layout, int32_t sample_rate, + int32_t width, int32_t height); + #endif /* AVFORMAT_INTERNAL_H */