diff options
Diffstat (limited to 'libavformat/avformat.h')
| -rw-r--r-- | libavformat/avformat.h | 133 |
1 files changed, 86 insertions, 47 deletions
diff --git a/libavformat/avformat.h b/libavformat/avformat.h index 55616a8010..dae0c07ffb 100644 --- a/libavformat/avformat.h +++ b/libavformat/avformat.h @@ -312,13 +312,39 @@ typedef struct AVOutputFormat { const char *long_name; const char *mime_type; const char *extensions; /**< comma-separated filename extensions */ + /* output support */ + enum CodecID audio_codec; /**< default audio codec */ + enum CodecID video_codec; /**< default video codec */ + enum CodecID subtitle_codec; /**< default subtitle codec */ + /** + * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE, + * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, + * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH + */ + int flags; + + /** + * List of supported codec_id-codec_tag pairs, ordered by "better + * choice first". The arrays are all terminated by CODEC_ID_NONE. + */ + const struct AVCodecTag * const *codec_tag; + + + const AVClass *priv_class; ///< AVClass for the private context + + /***************************************************************** + * No fields below this line are part of the public API. They + * may not be used outside of libavformat and can be changed and + * removed at will. + * New public fields should be added right above. + ***************************************************************** + */ + struct AVOutputFormat *next; /** * size of private data so that it can be allocated in the wrapper */ int priv_data_size; - /* output support */ - enum CodecID audio_codec; /**< default audio codec */ - enum CodecID video_codec; /**< default video codec */ + int (*write_header)(struct AVFormatContext *); /** * Write a packet. If AVFMT_ALLOW_FLUSH is set in flags, @@ -330,24 +356,10 @@ typedef struct AVOutputFormat { int (*write_packet)(struct AVFormatContext *, AVPacket *pkt); int (*write_trailer)(struct AVFormatContext *); /** - * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE, - * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, - * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH + * Currently only used to set pixel format if not YUV420P. */ - int flags; int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush); - - /** - * List of supported codec_id-codec_tag pairs, ordered by "better - * choice first". The arrays are all terminated by CODEC_ID_NONE. - */ - const struct AVCodecTag * const *codec_tag; - - enum CodecID subtitle_codec; /**< default subtitle codec */ - - const AVClass *priv_class; ///< AVClass for the private context - /** * Test if the given codec can be stored in this container. * @@ -358,9 +370,6 @@ typedef struct AVOutputFormat { void (*get_output_timestamp)(struct AVFormatContext *s, int stream, int64_t *dts, int64_t *wall); - - /* private fields */ - struct AVOutputFormat *next; } AVOutputFormat; /** * @} @@ -385,6 +394,38 @@ typedef struct AVInputFormat { const char *long_name; /** + * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, + * AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, + * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK. + */ + int flags; + + /** + * If extensions are defined, then no probe is done. You should + * usually not use extension format guessing because it is not + * reliable enough + */ + const char *extensions; + + const struct AVCodecTag * const *codec_tag; + + const AVClass *priv_class; ///< AVClass for the private context + + /***************************************************************** + * No fields below this line are part of the public API. They + * may not be used outside of libavformat and can be changed and + * removed at will. + * New public fields should be added right above. + ***************************************************************** + */ + struct AVInputFormat *next; + + /** + * Raw demuxers store their codec ID here. + */ + int raw_codec_id; + + /** * Size of private data so that it can be allocated in the wrapper. */ int priv_data_size; @@ -440,25 +481,6 @@ typedef struct AVInputFormat { int64_t *pos, int64_t pos_limit); /** - * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, - * AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, - * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK. - */ - int flags; - - /** - * If extensions are defined, then no probe is done. You should - * usually not use extension format guessing because it is not - * reliable enough - */ - const char *extensions; - - /** - * General purpose read-only value that the format can use. - */ - int value; - - /** * Start/resume playing - only meaningful if using a network-based format * (RTSP). */ @@ -470,8 +492,6 @@ typedef struct AVInputFormat { */ int (*read_pause)(struct AVFormatContext *); - const struct AVCodecTag * const *codec_tag; - /** * Seek to timestamp ts. * Seeking will be done so that the point from which all active streams @@ -479,11 +499,6 @@ typedef struct AVInputFormat { * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. */ int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); - - const AVClass *priv_class; ///< AVClass for the private context - - /* private fields */ - struct AVInputFormat *next; } AVInputFormat; /** * @} @@ -1775,6 +1790,30 @@ int av_match_ext(const char *filename, const char *extensions); int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_compliance); /** + * @defgroup riff_fourcc RIFF FourCCs + * @{ + * Get the tables mapping RIFF FourCCs to libavcodec CodecIDs. The tables are + * meant to be passed to av_codec_get_id()/av_codec_get_tag() as in the + * following code: + * @code + * uint32_t tag = MKTAG('H', '2', '6', '4'); + * const struct AVCodecTag *table[] = { avformat_get_riff_video_tags(), 0 }; + * enum CodecID id = av_codec_get_id(table, tag); + * @endcode + */ +/** + * @return the table mapping RIFF FourCCs for video to libavcodec CodecID. + */ +const struct AVCodecTag *avformat_get_riff_video_tags(void); +/** + * @return the table mapping RIFF FourCCs for audio to CodecID. + */ +const struct AVCodecTag *avformat_get_riff_audio_tags(void); +/** + * @} + */ + +/** * @} */ |