#define AVFORMAT_AVFORMAT_H
#define LIBAVFORMAT_VERSION_MAJOR 52
-#define LIBAVFORMAT_VERSION_MINOR 34
-#define LIBAVFORMAT_VERSION_MICRO 1
+#define LIBAVFORMAT_VERSION_MINOR 71
+#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
/**
- * Returns the LIBAVFORMAT_VERSION_INT constant.
+ * I return the LIBAVFORMAT_VERSION_INT constant. You got
+ * a fucking problem with that, douchebag?
*/
unsigned avformat_version(void);
+/**
+ * Returns the libavformat build-time configuration.
+ */
+const char *avformat_configuration(void);
+
+/**
+ * Returns the libavformat license.
+ */
+const char *avformat_license(void);
+
#include <time.h>
#include <stdio.h> /* FILE */
#include "libavcodec/avcodec.h"
/*
* Public Metadata API.
* The metadata API allows libavformat to export metadata tags to a client
- * application using a sequence of key/value pairs.
+ * application using a sequence of key/value pairs. Like all strings in FFmpeg,
+ * metadata must be stored as UTF-8 encoded Unicode. Note that metadata
+ * exported by demuxers isn't checked to be valid UTF-8 in most cases.
* Important concepts to keep in mind:
* 1. Keys are unique; there can never be 2 tags with the same key. This is
* also meant semantically, i.e., a demuxer should not knowingly produce
* 2. Metadata is flat, not hierarchical; there are no subtags. If you
* want to store, e.g., the email address of the child of producer Alice
* and actor Bob, that could have key=alice_and_bobs_childs_email_address.
- * 3. A tag whose value is localized for a particular language is appended
- * with a dash character ('-') and the ISO 639-2/B 3-letter language code.
- * For example: Author-ger=Michael, Author-eng=Mike
- * The original/default language is in the unqualified "Author" tag.
- * A demuxer should set a default if it sets any translated tag.
+ * 3. Several modifiers can be applied to the tag name. This is done by
+ * appending a dash character ('-') and the modifier name in the order
+ * they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng.
+ * a) language -- a tag whose value is localized for a particular language
+ * is appended with the ISO 639-2/B 3-letter language code.
+ * For example: Author-ger=Michael, Author-eng=Mike
+ * The original/default language is in the unqualified "Author" tag.
+ * A demuxer should set a default if it sets any translated tag.
+ * b) sorting -- a modified version of a tag that should be used for
+ * sorting will have '-sort' appended. E.g. artist="The Beatles",
+ * artist-sort="Beatles, The".
+ *
+ * 4. Tag names are normally exported exactly as stored in the container to
+ * allow lossless remuxing to the same format. For container-independent
+ * handling of metadata, av_metadata_conv() can convert it to ffmpeg generic
+ * format. Follows a list of generic tag names:
+ *
+ * album -- name of the set this work belongs to
+ * album_artist -- main creator of the set/album, if different from artist.
+ * e.g. "Various Artists" for compilation albums.
+ * artist -- main creator of the work
+ * comment -- any additional description of the file.
+ * composer -- who composed the work, if different from artist.
+ * copyright -- name of copyright holder.
+ * date -- date when the work was created, preferably in ISO 8601.
+ * disc -- number of a subset, e.g. disc in a multi-disc collection.
+ * encoder -- name/settings of the software/hardware that produced the file.
+ * encoded_by -- person/group who created the file.
+ * filename -- original name of the file.
+ * genre -- <self-evident>.
+ * language -- main language in which the work is performed, preferably
+ * in ISO 639-2 format.
+ * performer -- artist who performed the work, if different from artist.
+ * E.g for "Also sprach Zarathustra", artist would be "Richard
+ * Strauss" and performer "London Philharmonic Orchestra".
+ * publisher -- name of the label/publisher.
+ * title -- name of the work.
+ * track -- number of this work in the set, can be in form current/total.
*/
#define AV_METADATA_MATCH_CASE 1
#define AV_METADATA_IGNORE_SUFFIX 2
+#define AV_METADATA_DONT_STRDUP_KEY 4
+#define AV_METADATA_DONT_STRDUP_VAL 8
+#define AV_METADATA_DONT_OVERWRITE 16 ///< Don't overwrite existing tags.
typedef struct {
char *key;
/**
* Gets a metadata element with matching key.
* @param prev Set to the previous matching element to find the next.
+ * If set to NULL the first matching element is returned.
* @param flags Allows case as well as suffix-insensitive comparisons.
* @return Found tag or NULL, changing key or value leads to undefined behavior.
*/
AVMetadataTag *
av_metadata_get(AVMetadata *m, const char *key, const AVMetadataTag *prev, int flags);
+#if LIBAVFORMAT_VERSION_MAJOR == 52
/**
* Sets the given tag in m, overwriting an existing tag.
* @param key tag key to add to m (will be av_strduped)
* @param value tag value to add to m (will be av_strduped)
* @return >= 0 on success otherwise an error code <0
+ * @deprecated Use av_metadata_set2() instead.
*/
-int av_metadata_set(AVMetadata **pm, const char *key, const char *value);
+attribute_deprecated int av_metadata_set(AVMetadata **pm, const char *key, const char *value);
+#endif
+
+/**
+ * Sets the given tag in m, overwriting an existing tag.
+ * @param key tag key to add to m (will be av_strduped depending on flags)
+ * @param value tag value to add to m (will be av_strduped depending on flags).
+ * Passing a NULL value will cause an existing tag to be deleted.
+ * @return >= 0 on success otherwise an error code <0
+ */
+int av_metadata_set2(AVMetadata **pm, const char *key, const char *value, int flags);
/**
- * Convert all the metadata sets from ctx according to the source and
- * destination conversion tables.
+ * Converts all the metadata sets from ctx according to the source and
+ * destination conversion tables. If one of the tables is NULL, then
+ * tags are converted to/from ffmpeg generic tag names.
* @param d_conv destination tags format conversion table
* @param s_conv source tags format conversion table
*/
/**
- * Allocate and read the payload of a packet and initialize its fields with
- * default values.
+ * Allocates and reads the payload of a packet and initializes its
+ * fields with default values.
*
* @param pkt packet
* @param size desired payload size
/** This structure contains the data a format has to probe a file. */
typedef struct AVProbeData {
const char *filename;
- unsigned char *buf;
- int buf_size;
+ unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */
+ int buf_size; /**< Size of buf except extra allocated bytes */
} AVProbeData;
#define AVPROBE_SCORE_MAX 100 ///< maximum score, half of that is used for file-extension-based detection
#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */
#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. */
#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */
+#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */
typedef struct AVOutputFormat {
const char *name;
/** General purpose read-only value that the format can use. */
int value;
- /** Start/resume playing - only meaningful if using a network-based format
+ /** Starts/resumes playing - only meaningful if using a network-based format
(RTSP). */
int (*read_play)(struct AVFormatContext *);
- /** Pause playing - only meaningful if using a network-based format
+ /** Pauses playing - only meaningful if using a network-based format
(RTSP). */
int (*read_pause)(struct AVFormatContext *);
const struct AVCodecTag * const *codec_tag;
/**
- * Seek to timestamp ts.
+ * Seeks to timestamp ts.
* Seeking will be done so that the point from which all active streams
* can be presented successfully will be closest to ts and within min/max_ts.
* Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
AVSTREAM_PARSE_FULL, /**< full parsing and repack */
AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */
AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */
+ AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */
};
typedef struct AVIndexEntry {
* Number of packets to buffer for codec probing
* NOT PART OF PUBLIC API
*/
-#define MAX_PROBE_PACKETS 100
+#define MAX_PROBE_PACKETS 2500
int probe_packets;
+
+ /**
+ * last packet in packet_buffer for this stream when muxing.
+ * used internally, NOT PART OF PUBLIC API, dont read or write from outside of libav*
+ */
+ struct AVPacketList *last_in_packet_buffer;
+
+ /**
+ * Average framerate
+ */
+ AVRational avg_frame_rate;
+
+ /**
+ * Number of frames that have been demuxed during av_find_stream_info()
+ */
+ int codec_info_nb_frames;
} AVStream;
#define AV_PROGRAM_RUNNING 1
AVMetadata *metadata;
} AVChapter;
+#if LIBAVFORMAT_VERSION_MAJOR < 53
#define MAX_STREAMS 20
+#endif
/**
* Format I/O context.
It is deduced from the AVStream values. */
int64_t start_time;
/** Decoding: duration of the stream, in AV_TIME_BASE fractional
- seconds. NEVER set this value directly: it is deduced from the
- AVStream values. */
+ seconds. Only set this value if you know none of the individual stream
+ durations and also dont set any of them. This is deduced from the
+ AVStream values if not set. */
int64_t duration;
/** decoding: total file size, 0 if unknown */
int64_t file_size;
#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames.
#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index.
#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input.
+#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS
+#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container
+#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled
+#define AVFMT_FLAG_RTP_HINT 0x0040 ///< Add RTP hinting to the output file
int loop_input;
/** decoding: size of data to probe; encoding: unused. */
struct AVPacketList *packet_buffer_end;
AVMetadata *metadata;
+
+ /**
+ * Remaining size available for raw_packet_buffer, in bytes.
+ * NOT PART OF PUBLIC API
+ */
+#define RAW_PACKET_BUFFER_SIZE 2500000
+ int raw_packet_buffer_remaining_size;
+
+ /**
+ * Start time of the stream in real world time, in microseconds
+ * since the unix epoch (00:00 1st January 1970). That is, pts=0
+ * in the stream was captured at this real world time.
+ * - encoding: Set by user.
+ * - decoding: Unused.
+ */
+ int64_t start_time_realtime;
} AVFormatContext;
typedef struct AVPacketList {
/* utils.c */
void av_register_input_format(AVInputFormat *format);
void av_register_output_format(AVOutputFormat *format);
-AVOutputFormat *guess_stream_format(const char *short_name,
+#if LIBAVFORMAT_VERSION_MAJOR < 53
+attribute_deprecated AVOutputFormat *guess_stream_format(const char *short_name,
const char *filename,
const char *mime_type);
-AVOutputFormat *guess_format(const char *short_name,
- const char *filename,
- const char *mime_type);
+
+/**
+ * @deprecated Use av_guess_format() instead.
+ */
+attribute_deprecated AVOutputFormat *guess_format(const char *short_name,
+ const char *filename,
+ const char *mime_type);
+#endif
+
+/**
+ * Returns the output format in the list of registered output formats
+ * which best matches the provided parameters, or returns NULL if
+ * there is no match.
+ *
+ * @param short_name if non-NULL checks if short_name matches with the
+ * names of the registered formats
+ * @param filename if non-NULL checks if filename terminates with the
+ * extensions of the registered formats
+ * @param mime_type if non-NULL checks if mime_type matches with the
+ * MIME type of the registered formats
+ */
+AVOutputFormat *av_guess_format(const char *short_name,
+ const char *filename,
+ const char *mime_type);
/**
* Guesses the codec ID based upon muxer and filename.
*/
enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
const char *filename, const char *mime_type,
- enum CodecType type);
+ enum AVMediaType type);
/**
- * Send a nice hexadecimal dump of a buffer to the specified file stream.
+ * Sends a nice hexadecimal dump of a buffer to the specified file stream.
*
* @param f The file stream pointer where the dump should be sent to.
* @param buf buffer
void av_hex_dump(FILE *f, uint8_t *buf, int size);
/**
- * Send a nice hexadecimal dump of a buffer to the log.
+ * Sends a nice hexadecimal dump of a buffer to the log.
*
* @param avcl A pointer to an arbitrary struct of which the first field is a
* pointer to an AVClass struct.
void av_hex_dump_log(void *avcl, int level, uint8_t *buf, int size);
/**
- * Send a nice dump of a packet to the specified file stream.
+ * Sends a nice dump of a packet to the specified file stream.
*
* @param f The file stream pointer where the dump should be sent to.
* @param pkt packet to dump
void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
/**
- * Send a nice dump of a packet to the log.
+ * Sends a nice dump of a packet to the log.
*
* @param avcl A pointer to an arbitrary struct of which the first field is a
* pointer to an AVClass struct.
void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt, int dump_payload);
/**
- * Initialize libavformat and register all the muxers, demuxers and
+ * Initializes libavformat and registers all the muxers, demuxers and
* protocols. If you do not call this function, then you can select
* exactly which formats you want to support.
*
*/
void av_register_all(void);
-/** codec tag <-> codec id */
+/**
+ * Gets the CodecID for the given codec tag tag.
+ * If no codec id is found returns CODEC_ID_NONE.
+ *
+ * @param tags list of supported codec_id-codec_tag pairs, as stored
+ * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ */
enum CodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag);
+
+/**
+ * Gets the codec tag for the given codec id id.
+ * If no codec tag is found returns 0.
+ *
+ * @param tags list of supported codec_id-codec_tag pairs, as stored
+ * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ */
unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum CodecID id);
/* media file input */
AVInputFormat *av_find_input_format(const char *short_name);
/**
- * Guess file format.
+ * Guesses the file format.
*
* @param is_opened Whether the file is already opened; determines whether
* demuxers with or without AVFMT_NOFILE are probed.
*/
AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
+/**
+ * Guesses the file format.
+ *
+ * @param is_opened Whether the file is already opened; determines whether
+ * demuxers with or without AVFMT_NOFILE are probed.
+ * @param score_max A probe score larger that this is required to accept a
+ * detection, the variable is set to the actual detection
+ * score afterwards.
+ * If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended
+ * to retry with a larger probe buffer.
+ */
+AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max);
+
/**
* Allocates all the structures needed to read an input stream.
* This does not open the needed codecs for decoding the stream[s].
AVInputFormat *fmt, AVFormatParameters *ap);
/**
- * Open a media file as input. The codecs are not opened. Only the file
+ * Opens a media file as input. The codecs are not opened. Only the file
* header (if present) is read.
*
* @param ic_ptr The opened media file handle is put here.
#endif
/**
- * Allocate an AVFormatContext.
+ * Allocates an AVFormatContext.
* Can be freed with av_free() but do not forget to free everything you
* explicitly allocated as well!
*/
AVFormatContext *avformat_alloc_context(void);
/**
- * Read packets of a media file to get stream information. This
+ * Reads 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.
int av_find_stream_info(AVFormatContext *ic);
/**
- * Read a transport packet from a media file.
+ * Reads a transport packet from a media file.
*
* This function is obsolete and should never be used.
* Use av_read_frame() instead.
int av_read_packet(AVFormatContext *s, AVPacket *pkt);
/**
- * Return the next frame of a stream.
+ * Returns the next frame of a stream.
*
* The returned packet is valid
* until the next av_read_frame() or until av_close_input_file() and
int av_read_frame(AVFormatContext *s, AVPacket *pkt);
/**
- * Seek to the keyframe at timestamp.
+ * Seeks to the keyframe at timestamp.
* 'timestamp' in 'stream_index'.
* @param stream_index If stream_index is (-1), a default
* stream is selected, and timestamp is automatically converted
int flags);
/**
- * Seek to timestamp ts.
+ * Seeks to timestamp ts.
* Seeking will be done so that the point from which all active streams
* can be presented successfully will be closest to ts and within min/max_ts.
* Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
* @param ts target timestamp
* @param max_ts largest acceptable timestamp
* @param flags flags
- * @returns >=0 on success, error code otherwise
+ * @return >=0 on success, error code otherwise
*
* @NOTE This is part of the new seek API which is still under construction.
* Thus do not use this yet. It may change at any time, do not expect
int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
/**
- * Start playing a network-based stream (e.g. RTSP stream) at the
+ * Starts playing a network-based stream (e.g. RTSP stream) at the
* current position.
*/
int av_read_play(AVFormatContext *s);
/**
- * Pause a network-based stream (e.g. RTSP stream).
+ * Pauses a network-based stream (e.g. RTSP stream).
*
* Use av_read_play() to resume it.
*/
int av_read_pause(AVFormatContext *s);
/**
- * Free a AVFormatContext allocated by av_open_input_stream.
+ * Frees a AVFormatContext allocated by av_open_input_stream.
* @param s context to free
*/
void av_close_input_stream(AVFormatContext *s);
/**
- * Close a media file (but not its codecs).
+ * Closes a media file (but not its codecs).
*
* @param s media file handle
*/
void av_close_input_file(AVFormatContext *s);
/**
- * Add a new stream to a media file.
+ * Adds a new stream to a media file.
*
* Can only be called in the read_header() function. If the flag
* AVFMTCTX_NOHEADER is in the format context, then new streams
AVProgram *av_new_program(AVFormatContext *s, int id);
/**
- * Add a new chapter.
+ * Adds a new chapter.
* This function is NOT part of the public API
* and should ONLY be used by demuxers.
*
int64_t start, int64_t end, const char *title);
/**
- * Set the pts for a given stream.
+ * Sets the pts for a given stream.
*
* @param s stream
* @param pts_wrap_bits number of bits effectively used by the pts
* @param pts_den denominator to convert to seconds (MPEG: 90000)
*/
void av_set_pts_info(AVStream *s, int pts_wrap_bits,
- int pts_num, int pts_den);
+ unsigned int pts_num, unsigned int pts_den);
#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes
+#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number
int av_find_default_stream_index(AVFormatContext *s);
void ff_reduce_index(AVFormatContext *s, int stream_index);
/**
- * Add an index entry into a sorted list. Update the entry if the list
+ * Adds an index entry into a sorted list. Updates the entry if the list
* already contains it.
*
* @param timestamp timestamp in the time base of the given stream
int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
/**
- * Allocate the stream private data and write the stream header to an
+ * Allocates the stream private data and writes the stream header to an
* output media file.
*
* @param s media file handle
int av_write_header(AVFormatContext *s);
/**
- * Write a packet to an output media file.
+ * Writes a packet to an output media file.
*
* The packet shall contain one audio or video frame.
* The packet must be correctly interleaved according to the container
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
/**
- * Interleave a packet per dts in an output media file.
+ * Interleaves a packet per dts in an output media file.
*
* Packets with pkt->destruct == av_destruct_packet will be freed inside this
* function, so they cannot be used after it. Note that calling av_free_packet()
AVPacket *pkt, int flush);
/**
- * @brief Write the stream trailer to an output media file and
- * free the file private data.
+ * Writes the stream trailer to an output media file and frees the
+ * file private data.
*
* May only be called after a successful call to av_write_header.
*
const char *path, int number);
/**
- * Check whether filename actually is a numbered sequence generator.
+ * Checks whether filename actually is a numbered sequence generator.
*
* @param filename possible numbered sequence string
* @return 1 if a valid numbered sequence string, 0 otherwise
int av_filename_number_test(const char *filename);
/**
- * Generate an SDP for an RTP session.
+ * Generates an SDP for an RTP session.
*
* @param ac array of AVFormatContexts describing the RTP streams. If the
* array is composed by only one context, such context can contain
*/
int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size);
-#ifdef HAVE_AV_CONFIG_H
-
-void ff_dynarray_add(intptr_t **tab_ptr, int *nb_ptr, intptr_t elem);
-
-#ifdef __GNUC__
-#define dynarray_add(tab, nb_ptr, elem)\
-do {\
- __typeof__(tab) _tab = (tab);\
- __typeof__(elem) _elem = (elem);\
- (void)sizeof(**_tab == _elem); /* check that types are compatible */\
- ff_dynarray_add((intptr_t **)_tab, nb_ptr, (intptr_t)_elem);\
-} while(0)
-#else
-#define dynarray_add(tab, nb_ptr, elem)\
-do {\
- ff_dynarray_add((intptr_t **)(tab), nb_ptr, (intptr_t)(elem));\
-} while(0)
-#endif
-
-time_t mktimegm(struct tm *tm);
-struct tm *brktimegm(time_t secs, struct tm *tm);
-const char *small_strptime(const char *p, const char *fmt,
- struct tm *dt);
-
-struct in_addr;
-int resolve_host(struct in_addr *sin_addr, const char *hostname);
-
-void url_split(char *proto, int proto_size,
- char *authorization, int authorization_size,
- char *hostname, int hostname_size,
- int *port_ptr,
- char *path, int path_size,
- const char *url);
-
/**
* Returns a positive value if the given filename has one of the given
* extensions, 0 otherwise.
*
* @param extensions a comma-separated list of filename extensions
*/
-int match_ext(const char *filename, const char *extensions);
-
-#endif /* HAVE_AV_CONFIG_H */
+int av_match_ext(const char *filename, const char *extensions);
#endif /* AVFORMAT_AVFORMAT_H */
projects / ffmpeg / blobdiff