#include <stdio.h> /* FILE */
#include "libavcodec/avcodec.h"
#include "libavutil/dict.h"
+#include "libavutil/log.h"
#include "avio.h"
#include "libavformat/version.h"
#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */
#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */
#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fallback to generic search */
+#define AVFMT_NO_BYTE_SEEK 0x8000 /**< Format does not allow seeking by bytes */
typedef struct AVOutputFormat {
const char *name;
const AVClass *priv_class; ///< AVClass for the private context
+ /**
+ * Test if the given codec can be stored in this container.
+ *
+ * @return 1 if the codec is supported, 0 if it is not.
+ * A negative number if unknown.
+ */
+ int (*query_codec)(enum CodecID id, int std_compliance);
+
/* private fields */
struct AVOutputFormat *next;
} AVOutputFormat;
int64_t *pos, int64_t pos_limit);
/**
- * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER.
+ * 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;
int stream_copy; /**< If set, just copy stream. */
enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed.
+#if FF_API_AVSTREAM_QUALITY
//FIXME move stuff to a flags field?
/**
* Quality, as it has been removed from AVCodecContext and put in AVVideoFrame.
* MN: dunno if that is the right place for it
*/
- float quality;
+ attribute_deprecated float quality;
+#endif
/**
* Decoding: pts of the first frame of the stream, in stream time base.
AVStream **streams;
char filename[1024]; /**< input or output filename */
/* stream info */
- int64_t timestamp;
+#if FF_API_TIMESTAMP
+ /**
+ * @deprecated use 'creation_time' metadata tag instead
+ */
+ attribute_deprecated int64_t timestamp;
+#endif
int ctx_flags; /**< Format-specific flags, see AVFMTCTX_xx */
/* private data for pts handling (do not modify directly). */
*/
int64_t duration;
+#if FF_API_FILESIZE
/**
* decoding: total file size, 0 if unknown
*/
- int64_t file_size;
+ attribute_deprecated int64_t file_size;
+#endif
/**
* Decoding: total stream bitrate in bit/s, 0 if not
/* av_seek_frame() support */
int64_t data_offset; /**< offset of the first packet */
- int mux_rate;
+#if FF_API_MUXRATE
+ /**
+ * use mpeg muxer private options instead
+ */
+ attribute_deprecated int mux_rate;
+#endif
unsigned int packet_size;
int preload;
int max_delay;
+#if FF_API_LOOP_OUTPUT
#define AVFMT_NOOUTPUTLOOP -1
#define AVFMT_INFINITEOUTPUTLOOP 0
/**
* number of times to loop output in formats that support it
+ *
+ * @deprecated use the 'loop' private option in the gif muxer.
*/
- int loop_output;
+ attribute_deprecated int loop_output;
+#endif
int flags;
#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames.
#define AVFMT_FLAG_RTP_HINT 0x0040 ///< Deprecated, use the -movflags rtphint muxer specific AVOption instead
#endif
#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it.
+#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 ///< Discard frames marked corrupted
- int loop_input;
+#if FF_API_LOOP_INPUT
+ /**
+ * @deprecated, use the 'loop' img2 demuxer private option.
+ */
+ attribute_deprecated int loop_input;
+#endif
/**
* decoding: size of data to probe; encoding: unused.
* decoding: number of frames used to probe fps
*/
int fps_probe_size;
+
+ /**
+ * Error recognition; higher values will detect more errors but may
+ * misdetect some more or less valid parts as errors.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int error_recognition;
} AVFormatContext;
typedef struct AVPacketList {
*/
AVFormatContext *avformat_alloc_context(void);
+#if FF_API_FORMAT_PARAMETERS
/**
* Read packets of a media file to get stream information. This
* is useful for file formats with no headers such as MPEG. This
* @return >=0 if OK, AVERROR_xxx on error
* @todo Let the user decide somehow what information is needed so that
* we do not waste time getting stuff the user does not need.
+ *
+ * @deprecated use avformat_find_stream_info.
*/
+attribute_deprecated
int av_find_stream_info(AVFormatContext *ic);
+#endif
+
+/**
+ * Read packets of a media file to get stream information. This
+ * is useful for file formats with no headers such as MPEG. This
+ * function also computes the real framerate in case of MPEG-2 repeat
+ * frame mode.
+ * The logical file position is not changed by this function;
+ * examined packets may be buffered for later processing.
+ *
+ * @param ic media file handle
+ * @param options If non-NULL, an ic.nb_streams long array of pointers to
+ * dictionaries, where i-th member contains options for
+ * codec corresponding to i-th stream.
+ * On return each dictionary will be filled with options that were not found.
+ * @return >=0 if OK, AVERROR_xxx on error
+ *
+ * @note this function isn't guaranteed to open all the codecs, so
+ * options being non-empty at return is a perfectly normal behavior.
+ *
+ * @todo Let the user decide somehow what information is needed so that
+ * we do not waste time getting stuff the user does not need.
+ */
+int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options);
/**
* Find the "best" stream in the file.
*/
void avformat_free_context(AVFormatContext *s);
+#if FF_API_NEW_STREAM
/**
* Add a new stream to a media file.
*
* @param s media file handle
* @param id file-format-dependent stream ID
*/
+attribute_deprecated
AVStream *av_new_stream(AVFormatContext *s, int id);
+#endif
+
+/**
+ * Add a new stream to a media file.
+ *
+ * When demuxing, it is called by the demuxer in read_header(). If the
+ * flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also
+ * be called in read_packet().
+ *
+ * When muxing, should be called by the user before avformat_write_header().
+ *
+ * @param c If non-NULL, the AVCodecContext corresponding to the new stream
+ * will be initialized to use this codec. This is needed for e.g. codec-specific
+ * defaults to be set, so codec should be provided if it is known.
+ *
+ * @return newly created stream or NULL on error.
+ */
+AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c);
+
AVProgram *av_new_program(AVFormatContext *s, int id);
/**
*/
int av_match_ext(const char *filename, const char *extensions);
+/**
+ * Test if the given container can store a codec.
+ *
+ * @param std_compliance standards compliance level, one of FF_COMPLIANCE_*
+ *
+ * @return 1 if codec with ID codec_id can be stored in ofmt, 0 if it cannot.
+ * A negative number if this information is not available.
+ */
+int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_compliance);
+
+/**
+ * Get the AVClass for AVFormatContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avformat_get_class(void);
+
#endif /* AVFORMAT_AVFORMAT_H */
projects / ffmpeg / blobdiff