* sorting will have '-sort' appended. E.g. artist="The Beatles",
* artist-sort="Beatles, The".
* - Some protocols and demuxers support metadata updates. After a successful
- * call to av_read_packet(), AVFormatContext.event_flags or AVStream.event_flags
+ * call to av_read_frame(), AVFormatContext.event_flags or AVStream.event_flags
* will be updated to indicate if metadata changed. In order to detect metadata
* changes on a stream, you need to loop through all streams in the AVFormatContext
* and check their individual event_flags.
* @see avdevice_list_devices() for more details.
*/
int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
+#if LIBAVFORMAT_VERSION_MAJOR < 59
/**
* Initialize device capabilities submodule.
* @see avdevice_capabilities_create() for more details.
* @see avdevice_capabilities_free() for more details.
*/
int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
+#endif
enum AVCodecID data_codec; /**< default data codec */
/**
* Initialize format. May allocate data here, and set any AVFormatContext or
*/
int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
+#if LIBAVFORMAT_VERSION_MAJOR < 59
/**
* Initialize device capabilities submodule.
* @see avdevice_capabilities_create() for more details.
* @see avdevice_capabilities_free() for more details.
*/
int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
+#endif
} AVInputFormat;
/**
* @}
int nb_side_data;
/**
- * Flags for the user to detect events happening on the stream. Flags must
- * be cleared by the user once the event has been handled.
- * A combination of AVSTREAM_EVENT_FLAG_*.
+ * Flags indicating events happening on the stream, a combination of
+ * AVSTREAM_EVENT_FLAG_*.
+ *
+ * - demuxing: may be set by the demuxer in avformat_open_input(),
+ * avformat_find_stream_info() and av_read_frame(). Flags must be cleared
+ * by the user once the event has been handled.
+ * - muxing: may be set by the user after avformat_write_header(). to
+ * indicate a user-triggered event. The muxer will clear the flags for
+ * events it has handled in av_[interleaved]_write_frame().
*/
int event_flags;
-#define AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001 ///< The call resulted in updated metadata.
+/**
+ * - demuxing: the demuxer read new metadata from the file and updated
+ * AVStream.metadata accordingly
+ * - muxing: the user updated AVStream.metadata and wishes the muxer to write
+ * it into the file
+ */
+#define AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001
+/**
+ * - demuxing: new packets for this stream were read from the file. This
+ * event is informational only and does not guarantee that new packets
+ * for this stream will necessarily be returned from av_read_frame().
+ */
+#define AVSTREAM_EVENT_FLAG_NEW_PACKETS (1 << 1)
/**
* Real base framerate of the stream.
*****************************************************************
*/
-#define MAX_STD_TIMEBASES (30*12+30+3+6)
- /**
- * Stream information used internally by avformat_find_stream_info()
- */
- struct {
- int64_t last_dts;
- int64_t duration_gcd;
- int duration_count;
- int64_t rfps_duration_sum;
- double (*duration_error)[2][MAX_STD_TIMEBASES];
- int64_t codec_info_duration;
- int64_t codec_info_duration_fields;
- int frame_delay_evidence;
-
- /**
- * 0 -> decoder has not been searched for yet.
- * >0 -> decoder found
- * <0 -> decoder with codec_id == -found_decoder has not been found
- */
- int found_decoder;
-
- int64_t last_duration;
-
- /**
- * Those are used for average framerate estimation.
- */
- int64_t fps_first_dts;
- int fps_first_dts_idx;
- int64_t fps_last_dts;
- int fps_last_dts_idx;
-
- } *info;
+#if LIBAVFORMAT_VERSION_MAJOR < 59
+ // kept for ABI compatibility only, do not access in any way
+ void *unused;
+#endif
int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */
enum AVStreamParseType need_parsing;
struct AVCodecParserContext *parser;
- /**
- * last packet in packet_buffer for this stream when muxing.
- */
- struct AVPacketList *last_in_packet_buffer;
- AVProbeData probe_data;
-#define MAX_REORDER_DELAY 16
- int64_t pts_buffer[MAX_REORDER_DELAY+1];
-
- AVIndexEntry *index_entries; /**< Only used if the format does not
- support seeking natively. */
- int nb_index_entries;
- unsigned int index_entries_allocated_size;
+#if LIBAVFORMAT_VERSION_MAJOR < 59
+ // kept for ABI compatibility only, do not access in any way
+ void *unused7;
+ AVProbeData unused6;
+ int64_t unused5[16+1];
+ void *unused2;
+ int unused3;
+ unsigned int unused4;
+#endif
/**
* Stream Identifier
*/
int stream_identifier;
- /**
- * Details of the MPEG-TS program which created this stream.
- */
- int program_num;
- int pmt_version;
- int pmt_stream_idx;
-
- int64_t interleaver_chunk_size;
- int64_t interleaver_chunk_duration;
-
- /**
- * stream probing state
- * -1 -> probing finished
- * 0 -> no probing requested
- * rest -> perform probing with request_probe being the minimum score to accept.
- */
- int request_probe;
- /**
- * Indicates that everything up to the next keyframe
- * should be discarded.
- */
- int skip_to_keyframe;
-
- /**
- * Number of samples to skip at the start of the frame decoded from the next packet.
- */
- int skip_samples;
-
- /**
- * If not 0, the number of samples that should be skipped from the start of
- * the stream (the samples are removed from packets with pts==0, which also
- * assumes negative timestamps do not happen).
- * Intended for use with formats such as mp3 with ad-hoc gapless audio
- * support.
- */
- int64_t start_skip_samples;
-
- /**
- * If not 0, the first audio sample that should be discarded from the stream.
- * This is broken by design (needs global sample count), but can't be
- * avoided for broken by design formats such as mp3 with ad-hoc gapless
- * audio support.
- */
- int64_t first_discard_sample;
-
- /**
- * The sample after last sample that is intended to be discarded after
- * first_discard_sample. Works on frame boundaries only. Used to prevent
- * early EOF if the gapless info is broken (considered concatenated mp3s).
- */
- int64_t last_discard_sample;
-
- /**
- * Number of internally decoded frames, used internally in libavformat, do not access
- * its lifetime differs from info which is why it is not in that structure.
- */
- int nb_decoded_frames;
-
- /**
- * Timestamp offset added to timestamps before muxing
- */
- int64_t mux_ts_offset;
-
- /**
- * Internal data to check for wrapping of the time stamp
- */
- int64_t pts_wrap_reference;
-
- /**
- * Options for behavior, when a wrap is detected.
- *
- * Defined by AV_PTS_WRAP_ values.
- *
- * If correction is enabled, there are two possibilities:
- * If the first time stamp is near the wrap point, the wrap offset
- * will be subtracted, which will create negative time stamps.
- * Otherwise the offset will be added.
- */
- int pts_wrap_behavior;
-
- /**
- * Internal data to prevent doing update_initial_durations() twice
- */
- int update_initial_durations_done;
-
- /**
- * Internal data to generate dts from pts
- */
- int64_t pts_reorder_error[MAX_REORDER_DELAY+1];
- uint8_t pts_reorder_error_count[MAX_REORDER_DELAY+1];
-
- /**
- * Internal data to analyze DTS and detect faulty mpeg streams
- */
- int64_t last_dts_for_order_check;
- uint8_t dts_ordered;
- uint8_t dts_misordered;
-
- /**
- * Internal data to inject global side data
- */
- int inject_global_side_data;
-
- /**
- * display aspect ratio (0 if unknown)
- * - encoding: unused
- * - decoding: Set by libavformat to calculate sample_aspect_ratio internally
- */
- AVRational display_aspect_ratio;
+#if LIBAVFORMAT_VERSION_MAJOR < 59
+ // kept for ABI compatibility only, do not access in any way
+ int unused8;
+ int unused9;
+ int unused10;
+#endif
/**
* An opaque field for libavformat internal usage.
int strict_std_compliance;
/**
- * Flags for the user to detect events happening on the file. Flags must
- * be cleared by the user once the event has been handled.
- * A combination of AVFMT_EVENT_FLAG_*.
+ * Flags indicating events happening on the file, a combination of
+ * AVFMT_EVENT_FLAG_*.
+ *
+ * - demuxing: may be set by the demuxer in avformat_open_input(),
+ * avformat_find_stream_info() and av_read_frame(). Flags must be cleared
+ * by the user once the event has been handled.
+ * - muxing: may be set by the user after avformat_write_header() to
+ * indicate a user-triggered event. The muxer will clear the flags for
+ * events it has handled in av_[interleaved]_write_frame().
*/
int event_flags;
-#define AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001 ///< The call resulted in updated metadata.
+/**
+ * - demuxing: the demuxer read new metadata from the file and updated
+ * AVFormatContext.metadata accordingly
+ * - muxing: the user updated AVFormatContext.metadata and wishes the muxer to
+ * write it into the file
+ */
+#define AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001
/**
* Maximum number of packets to read while waiting for the first timestamp.
projects / ffmpeg / blobdiff