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https://github.com/FFmpeg/FFmpeg.git
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avformat/avformat: Reorder AVFormatContext fields
Move related fields closer together. Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
parent
53cdf94653
commit
c8db1006ef
@ -1324,6 +1324,39 @@ typedef struct AVFormatContext {
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*/
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AVStream **streams;
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/**
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* Number of elements in AVFormatContext.stream_groups.
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*
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* Set by avformat_stream_group_create(), must not be modified by any other code.
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*/
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unsigned int nb_stream_groups;
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/**
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* A list of all stream groups in the file. New groups are created with
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* avformat_stream_group_create(), and filled with avformat_stream_group_add_stream().
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*
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* - demuxing: groups may be created by libavformat in avformat_open_input().
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* If AVFMTCTX_NOHEADER is set in ctx_flags, then new groups may also
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* appear in av_read_frame().
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* - muxing: groups may be created by the user before avformat_write_header().
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*
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* Freed by libavformat in avformat_free_context().
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*/
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AVStreamGroup **stream_groups;
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/**
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* Number of chapters in AVChapter array.
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* When muxing, chapters are normally written in the file header,
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* so nb_chapters should normally be initialized before write_header
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* is called. Some muxers (e.g. mov and mkv) can also write chapters
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* in the trailer. To write chapters in the trailer, nb_chapters
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* must be zero when write_header is called and non-zero when
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* write_trailer is called.
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* - muxing: set by user
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* - demuxing: set by libavformat
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*/
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unsigned int nb_chapters;
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AVChapter **chapters;
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/**
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* input or output URL. Unlike the old filename field, this field has no
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* length restriction.
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@ -1443,36 +1476,10 @@ typedef struct AVFormatContext {
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enum AVCodecID subtitle_codec_id;
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/**
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* Maximum amount of memory in bytes to use for the index of each stream.
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* If the index exceeds this size, entries will be discarded as
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* needed to maintain a smaller size. This can lead to slower or less
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* accurate seeking (depends on demuxer).
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* Demuxers for which a full in-memory index is mandatory will ignore
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* this.
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* - muxing: unused
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* - demuxing: set by user
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* Forced Data codec_id.
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* Demuxing: Set by user.
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*/
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unsigned int max_index_size;
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/**
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* Maximum amount of memory in bytes to use for buffering frames
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* obtained from realtime capture devices.
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*/
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unsigned int max_picture_buffer;
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/**
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* Number of chapters in AVChapter array.
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* When muxing, chapters are normally written in the file header,
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* so nb_chapters should normally be initialized before write_header
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* is called. Some muxers (e.g. mov and mkv) can also write chapters
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* in the trailer. To write chapters in the trailer, nb_chapters
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* must be zero when write_header is called and non-zero when
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* write_trailer is called.
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* - muxing: set by user
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* - demuxing: set by libavformat
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*/
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unsigned int nb_chapters;
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AVChapter **chapters;
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enum AVCodecID data_codec_id;
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/**
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* Metadata that applies to the whole file.
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@ -1528,6 +1535,31 @@ typedef struct AVFormatContext {
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int debug;
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#define FF_FDEBUG_TS 0x0001
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/**
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* The maximum number of streams.
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* - encoding: unused
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* - decoding: set by user
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*/
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int max_streams;
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/**
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* Maximum amount of memory in bytes to use for the index of each stream.
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* If the index exceeds this size, entries will be discarded as
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* needed to maintain a smaller size. This can lead to slower or less
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* accurate seeking (depends on demuxer).
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* Demuxers for which a full in-memory index is mandatory will ignore
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* this.
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* - muxing: unused
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* - demuxing: set by user
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*/
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unsigned int max_index_size;
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/**
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* Maximum amount of memory in bytes to use for buffering frames
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* obtained from realtime capture devices.
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*/
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unsigned int max_picture_buffer;
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/**
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* Maximum buffering duration for interleaving.
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*
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@ -1546,6 +1578,35 @@ typedef struct AVFormatContext {
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*/
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int64_t max_interleave_delta;
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/**
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* Maximum number of packets to read while waiting for the first timestamp.
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* Decoding only.
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*/
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int max_ts_probe;
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/**
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* Max chunk time in microseconds.
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* Note, not all formats support this and unpredictable things may happen if it is used when not supported.
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* - encoding: Set by user
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* - decoding: unused
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*/
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int max_chunk_duration;
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/**
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* Max chunk size in bytes
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* Note, not all formats support this and unpredictable things may happen if it is used when not supported.
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* - encoding: Set by user
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* - decoding: unused
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*/
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int max_chunk_size;
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/**
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* Maximum number of packets that can be probed
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* - encoding: unused
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* - decoding: set by user
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*/
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int max_probe_packets;
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/**
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* Allow non-standard and experimental extension
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* @see AVCodecContext.strict_std_compliance
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@ -1572,11 +1633,6 @@ typedef struct AVFormatContext {
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*/
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#define AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001
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/**
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* Maximum number of packets to read while waiting for the first timestamp.
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* Decoding only.
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*/
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int max_ts_probe;
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/**
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* Avoid negative timestamps during muxing.
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@ -1599,22 +1655,6 @@ typedef struct AVFormatContext {
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*/
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int audio_preload;
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/**
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* Max chunk time in microseconds.
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* Note, not all formats support this and unpredictable things may happen if it is used when not supported.
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* - encoding: Set by user
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* - decoding: unused
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*/
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int max_chunk_duration;
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/**
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* Max chunk size in bytes
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* Note, not all formats support this and unpredictable things may happen if it is used when not supported.
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* - encoding: Set by user
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* - decoding: unused
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*/
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int max_chunk_size;
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/**
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* forces the use of wallclock timestamps as pts/dts of packets
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* This has undefined results in the presence of B frames.
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@ -1623,6 +1663,13 @@ typedef struct AVFormatContext {
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*/
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int use_wallclock_as_timestamps;
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/**
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* Skip duration calcuation in estimate_timings_from_pts.
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* - encoding: unused
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* - decoding: set by user
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*/
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int skip_estimate_duration_from_pts;
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/**
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* avio flags, used to force AVIO_FLAG_DIRECT.
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* - encoding: unused
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@ -1702,6 +1749,20 @@ typedef struct AVFormatContext {
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*/
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char *format_whitelist;
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/**
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* ',' separated list of allowed protocols.
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* - encoding: unused
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* - decoding: set by user
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*/
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char *protocol_whitelist;
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/**
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* ',' separated list of disallowed protocols.
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* - encoding: unused
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* - decoding: set by user
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*/
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char *protocol_blacklist;
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/**
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* IO repositioned flag.
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* This is set by avformat when the underlaying IO context read pointer
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@ -1774,19 +1835,6 @@ typedef struct AVFormatContext {
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*/
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uint8_t *dump_separator;
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/**
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* Forced Data codec_id.
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* Demuxing: Set by user.
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*/
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enum AVCodecID data_codec_id;
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/**
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* ',' separated list of allowed protocols.
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* - encoding: unused
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* - decoding: set by user
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*/
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char *protocol_whitelist;
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/**
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* A callback for opening new IO streams.
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*
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@ -1810,34 +1858,6 @@ typedef struct AVFormatContext {
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int (*io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url,
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int flags, AVDictionary **options);
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/**
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* ',' separated list of disallowed protocols.
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* - encoding: unused
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* - decoding: set by user
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*/
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char *protocol_blacklist;
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/**
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* The maximum number of streams.
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* - encoding: unused
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* - decoding: set by user
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*/
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int max_streams;
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/**
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* Skip duration calcuation in estimate_timings_from_pts.
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* - encoding: unused
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* - decoding: set by user
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*/
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int skip_estimate_duration_from_pts;
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/**
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* Maximum number of packets that can be probed
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* - encoding: unused
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* - decoding: set by user
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*/
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int max_probe_packets;
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/**
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* A callback for closing the streams opened with AVFormatContext.io_open().
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*
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@ -1850,26 +1870,6 @@ typedef struct AVFormatContext {
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* @return 0 on success, a negative AVERROR code on failure
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*/
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int (*io_close2)(struct AVFormatContext *s, AVIOContext *pb);
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/**
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* Number of elements in AVFormatContext.stream_groups.
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*
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* Set by avformat_stream_group_create(), must not be modified by any other code.
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*/
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unsigned int nb_stream_groups;
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/**
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* A list of all stream groups in the file. New groups are created with
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* avformat_stream_group_create(), and filled with avformat_stream_group_add_stream().
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*
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* - demuxing: groups may be created by libavformat in avformat_open_input().
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* If AVFMTCTX_NOHEADER is set in ctx_flags, then new groups may also
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* appear in av_read_frame().
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* - muxing: groups may be created by the user before avformat_write_header().
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*
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* Freed by libavformat in avformat_free_context().
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*/
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AVStreamGroup **stream_groups;
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} AVFormatContext;
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/**
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