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authorbrian-ch <brian-ch@b956fd51-792f-4845-bead-9b4dfca2ff2c>2014-07-19 18:00:04 +0000
committerbrian-ch <brian-ch@b956fd51-792f-4845-bead-9b4dfca2ff2c>2014-07-19 18:00:04 +0000
commitc84bde82dae474092242f5459c0a88fdda4527e6 (patch)
tree0a9b79b057e0a40a1cdb6c14a4bdef241fd3e472 /src/lib
parenta420e0f40a864db0897f5c5c47e46ec1446086a3 (diff)
downloadusdx-c84bde82dae474092242f5459c0a88fdda4527e6.tar.gz
usdx-c84bde82dae474092242f5459c0a88fdda4527e6.tar.xz
usdx-c84bde82dae474092242f5459c0a88fdda4527e6.zip
Update avformat for ffmpeg 2.2
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@3076 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to '')
-rw-r--r--src/lib/ffmpeg-2.2/avformat.pas515
1 files changed, 451 insertions, 64 deletions
diff --git a/src/lib/ffmpeg-2.2/avformat.pas b/src/lib/ffmpeg-2.2/avformat.pas
index b97e4259..79ea4775 100644
--- a/src/lib/ffmpeg-2.2/avformat.pas
+++ b/src/lib/ffmpeg-2.2/avformat.pas
@@ -59,16 +59,16 @@ const
*)
(* Max. supported version by this header *)
LIBAVFORMAT_MAX_VERSION_MAJOR = 55;
- LIBAVFORMAT_MAX_VERSION_MINOR = 19;
- LIBAVFORMAT_MAX_VERSION_RELEASE = 104;
+ LIBAVFORMAT_MAX_VERSION_MINOR = 33;
+ LIBAVFORMAT_MAX_VERSION_RELEASE = 100;
LIBAVFORMAT_MAX_VERSION = (LIBAVFORMAT_MAX_VERSION_MAJOR * VERSION_MAJOR) +
(LIBAVFORMAT_MAX_VERSION_MINOR * VERSION_MINOR) +
(LIBAVFORMAT_MAX_VERSION_RELEASE * VERSION_RELEASE);
(* Min. supported version by this header *)
LIBAVFORMAT_MIN_VERSION_MAJOR = 55;
- LIBAVFORMAT_MIN_VERSION_MINOR = 19;
- LIBAVFORMAT_MIN_VERSION_RELEASE = 104;
+ LIBAVFORMAT_MIN_VERSION_MINOR = 33;
+ LIBAVFORMAT_MIN_VERSION_RELEASE = 100;
LIBAVFORMAT_MIN_VERSION = (LIBAVFORMAT_MIN_VERSION_MAJOR * VERSION_MAJOR) +
(LIBAVFORMAT_MIN_VERSION_MINOR * VERSION_MINOR) +
(LIBAVFORMAT_MIN_VERSION_RELEASE * VERSION_RELEASE);
@@ -274,6 +274,58 @@ const
*
* @defgroup lavf_encoding Muxing
* @{
+ * Muxers take encoded data in the form of @ref AVPacket "AVPackets" and write
+ * it into files or other output bytestreams in the specified container format.
+ *
+ * The main API functions for muxing are avformat_write_header() for writing the
+ * file header, av_write_frame() / av_interleaved_write_frame() for writing the
+ * packets and av_write_trailer() for finalizing the file.
+ *
+ * At the beginning of the muxing process, the caller must first call
+ * avformat_alloc_context() to create a muxing context. The caller then sets up
+ * the muxer by filling the various fields in this context:
+ *
+ * - The @ref AVFormatContext.oformat "oformat" field must be set to select the
+ * muxer that will be used.
+ * - Unless the format is of the AVFMT_NOFILE type, the @ref AVFormatContext.pb
+ * "pb" field must be set to an opened IO context, either returned from
+ * avio_open2() or a custom one.
+ * - Unless the format is of the AVFMT_NOSTREAMS type, at least one stream must
+ * be created with the avformat_new_stream() function. The caller should fill
+ * the @ref AVStream.codec "stream codec context" information, such as the
+ * codec @ref AVCodecContext.codec_type "type", @ref AVCodecContext.codec_id
+ * "id" and other parameters (e.g. width / height, the pixel or sample format,
+ * etc.) as known. The @ref AVCodecContext.time_base "codec timebase" should
+ * be set to the timebase that the caller desires to use for this stream (note
+ * that the timebase actually used by the muxer can be different, as will be
+ * described later).
+ * - The caller may fill in additional information, such as @ref
+ * AVFormatContext.metadata "global" or @ref AVStream.metadata "per-stream"
+ * metadata, @ref AVFormatContext.chapters "chapters", @ref
+ * AVFormatContext.programs "programs", etc. as described in the
+ * AVFormatContext documentation. Whether such information will actually be
+ * stored in the output depends on what the container format and the muxer
+ * support.
+ *
+ * When the muxing context is fully set up, the caller must call
+ * avformat_write_header() to initialize the muxer internals and write the file
+ * header. Whether anything actually is written to the IO context at this step
+ * depends on the muxer, but this function must always be called. Any muxer
+ * private options must be passed in the options parameter to this function.
+ *
+ * The data is then sent to the muxer by repeatedly calling av_write_frame() or
+ * av_interleaved_write_frame() (consult those functions' documentation for
+ * discussion on the difference between them; only one of them may be used with
+ * a single muxing context, they should not be mixed). Do note that the timing
+ * information on the packets sent to the muxer must be in the corresponding
+ * AVStream's timebase. That timebase is set by the muxer (in the
+ * avformat_write_header() step) and may be different from the timebase the
+ * caller set on the codec context.
+ *
+ * Once all the data has been written, the caller must call av_write_trailer()
+ * to flush any buffered packets and finalize the output file, then close the IO
+ * context (if any) and finally free the muxing context with
+ * avformat_free_context().
* @}
*
* @defgroup lavf_io I/O Read/Write
@@ -381,6 +433,7 @@ type
* Allocate and read the payload of a packet and initialize its fields with
* default values.
*
+ * @param s associated IO context
* @param pkt packet
* @param size desired payload size
* @return >0 (read size) if OK, AVERROR_xxx otherwise
@@ -396,6 +449,7 @@ function av_get_packet(s: PAVIOContext; var pkt: TAVPacket; size: cint): cint;
* when there is no reasonable way to know (an upper bound of)
* the final size.
*
+ * @param s associated IO context
* @param pkt packet
* @param size amount of data to read
* @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data
@@ -431,10 +485,12 @@ type
end;
const
- AVPROBE_SCORE_EXTENSION = 50; ///< score for file extension
- AVPROBE_SCORE_MAX = 100; ///< maximum score
- AVPROBE_SCORE_RETRY = (AVPROBE_SCORE_MAX DIV 4);
- AVPROBE_PADDING_SIZE = 32; ///< extra allocated bytes at the end of the probe buffer
+ AVPROBE_SCORE_RETRY = (AVPROBE_SCORE_MAX DIV 4);
+ AVPROBE_SCORE_STREAM_RETRY = (AVPROBE_SCORE_MAX DIV 4-1);
+ AVPROBE_SCORE_EXTENSION = 50; ///< score for file extension
+ AVPROBE_SCORE_MAX = 100; ///< maximum score
+
+ AVPROBE_PADDING_SIZE = 32; ///< extra allocated bytes at the end of the probe buffer
/// Demuxer will use avio_open, no opened file should be provided by the caller.
AVFMT_NOFILE = $0001;
@@ -657,7 +713,30 @@ type
query_codec: function (id: TAVCodecID; std_compliance: cint): cint; cdecl;
get_output_timestamp: procedure (s: PAVFormatContext; stream: cint;
- dts: Pcint64; wall: Pcint64); cdecl;
+ dts: Pcint64; wall: Pcint64); cdecl;
+
+ (**
+ * Allows sending messages from application to device.
+ *)
+ control_message: function(s: PAVFormatContext; type_: cint; data: pointer;
+ data_size: size_t): cint; cdecl;
+
+ (**
+ * Write an uncoded AVFrame.
+ *
+ * See av_write_uncoded_frame() for details.
+ *
+ * The library will free *frame afterwards, but the muxer can prevent it
+ * by setting the pointer to NULL.
+ *)
+ write_uncodec_frame: function(s: PAVFormatContext; stream_index: cint;
+ frame: ^PAVFrame; flags: cuint): cint; cdecl;
+
+ (**
+ * Returns device list with it properties.
+ * @see avdevice_list_devices() for more details.
+ *)
+ get_device_list: function(s: PAVFormatContext; device_list: PAVDeviceInfoList): cint; cdecl;
end;
(**
* @}
@@ -789,7 +868,14 @@ type
min_ts: cint64;
ts: cint64;
max_ts: cint64;
- flags: cint): cint; cdecl;
+ flags: cint): cint; cdecl;
+
+ (**
+ * Returns device list with it properties.
+ * @see avdevice_list_devices() for more details.
+ *)
+ get_device_list: function(s: PAVFormatContext; device_list: PAVDeviceInfoList): cint; cdecl;
+
end;
(**
* @}
@@ -823,15 +909,21 @@ type
min_distance: cint; (**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. *)
end;
- Tduration_error = array[0..1] of array[0..MAX_STD_TIMEBASES - 1] of cdouble;
+ Tduration_error = array[0..1] of array[0..MAX_STD_TIMEBASES - 1] of cdouble;
PStreamInfo = ^TStreamInfo;
TStreamInfo = record
last_dts: cint64;
duration_gcd: cint64;
duration_count: cint;
+ rfps_duration_sum: cint64;
duration_error: ^Tduration_error;
codec_info_duration: cint64;
codec_info_duration_fields: cint64;
+ (**
+ * 0 -> decoder has not been searched for yet.
+ * >0 -> decoder found
+ * <0 -> decoder with codec_id == -found_decoder has not been found
+ *)
found_decoder: cint;
(**
@@ -946,8 +1038,14 @@ type
* Stream information used internally by av_find_stream_info()
*)
info: PStreamInfo;
-
+
pts_wrap_bits: cint; (**< number of bits in pts (used for wrapping control) *)
+
+{$IFDEF FF_API_REFERENCE_DTS}
+ (* a hack to keep ABI compatibility for ffmpeg and other applications, which accesses parser even
+ * though it should not *)
+ do_not_use: cint64;
+{$ENDIF}
// Timestamp generation support:
(**
@@ -957,7 +1055,6 @@ type
* a DTS is received from the underlying container. Otherwise set to
* AV_NOPTS_VALUE by default.
*)
- reference_dts: cint64;
first_dts: cint64;
cur_dts: cint64;
last_IP_pts: cint64;
@@ -1060,6 +1157,24 @@ type
*)
pts_wrap_behavior: cint;
+ (**
+ * Internal data to prevent doing update_initial_durations() twice
+ *)
+ update_initial_durations_done: cint;
+
+ (**
+ * Internal data to generate dts from pts
+ *)
+ pts_reorder_error: array[0..MAX_REORDER_DELAY] of cint64;
+ pts_reorder_error_count: array[0..MAX_REORDER_DELAY] of byte;
+
+ (**
+ * Internal data to analyze DTS and detect faulty mpeg streams
+ *)
+ last_dts_for_order_check: cint64;
+ dts_ordered: byte;
+ dts_misordered: byte;
+
end; (** TAVStream **)
(**
@@ -1115,6 +1230,19 @@ type
AVFMT_DURATION_FROM_BITRATE ///< Duration estimated from bitrate (less accurate)
);
+ PAVFormatInternal = ^TAVFormatInternal;
+ TAVFormatInternal = record
+ (**
+ * Number of streams relevant for interleaving.
+ * Muxing only.
+ *)
+ nb_interleaved_streams: cint;
+ inject_global_side_data: cint;
+ end;
+
+ TAv_format_control_message = function (s: PAVFormatContext; type_: cint;
+ data: pointer; data_size: size_t): cint; cdecl;
+
(**
* Format I/O context.
* New fields can be added to the end with minor version bumps.
@@ -1125,32 +1253,41 @@ type
*)
TAVFormatContext = record
(**
- * A class for logging and AVOptions. Set by avformat_alloc_context().
+ * A class for logging and @ref avoptions. Set by avformat_alloc_context().
* Exports (de)muxer private options if they exist.
*)
av_class: PAVClass; (**< Set by avformat_alloc_context. *)
(**
- * Can only be iformat or oformat, not both at the same time.
+ * The input container format.
*
- * decoding: set by avformat_open_input().
- * encoding: set by the user.
+ * Demuxing only, set by avformat_open_input().
*)
iformat: PAVInputFormat;
+
+ (**
+ * The output container format.
+ *
+ * Muxing only, must be set by the caller before avformat_write_header().
+ *)
oformat: PAVOutputFormat;
(**
* Format private data. This is an AVOptions-enabled struct
* if and only if iformat/oformat.priv_class is not NULL.
+ *
+ * - muxing: set by avformat_write_header()
+ * - demuxing: set by avformat_open_input()
*)
priv_data: pointer;
(*
* I/O context.
*
- * decoding: either set by the user before avformat_open_input() (then
- * the user must close it manually) or set by avformat_open_input().
- * encoding: set by the user.
+ * - demuxing: either set by the user before avformat_open_input() (then
+ * the user must close it manually) or set by avformat_open_input().
+ * - muxing: set by the user before avformat_write_header(). The caller must
+ * take care of closing / freeing the IO context.
*
* Do NOT set this field if AVFMT_NOFILE flag is set in
* iformat/oformat.flags. In such a case, the (de)muxer will handle
@@ -1162,27 +1299,43 @@ type
ctx_flags: cint; (**< Format-specific flags, see AVFMTCTX_xx *)
(**
+ * Number of elements in AVFormatContext.streams.
+ *
+ * Set by avformat_new_stream(), must not be modified by any other code.
+ *)
+ nb_streams: cuint;
+
+ (**
* A list of all streams in the file. New streams are created with
* avformat_new_stream().
*
- * decoding: streams are created by libavformat in avformat_open_input().
- * If AVFMTCTX_NOHEADER is set in ctx_flags, then new streams may also
- * appear in av_read_frame().
- * encoding: streams are created by the user before avformat_write_header().
+ * - demuxing: streams are created by libavformat in avformat_open_input().
+ * If AVFMTCTX_NOHEADER is set in ctx_flags, then new streams may also
+ * appear in av_read_frame().
+ * - muxing: streams are created by the user before avformat_write_header().
+ *
+ * Freed by libavformat in avformat_free_context().
*)
- nb_streams: cuint;
streams: PPAVStream;
+ (**
+ * input or output filename
+ *
+ * - demuxing: set by avformat_open_input()
+ * - muxing: may be set by the caller before avformat_write_header()
+ *)
filename: array [0..1023] of AnsiChar; (* input or output filename *)
(**
- * Decoding: position of the first frame of the component, in
+ * Position of the first frame of the component, in
* AV_TIME_BASE fractional seconds. NEVER set this value directly:
* It is deduced from the AVStream values.
+ *
+ * Demuxing only, set by libavformat.
*)
start_time: cint64;
(**
- * Decoding: duration of the stream, in AV_TIME_BASE fractional
+ * Duration of the stream, in AV_TIME_BASE fractional
* 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.
@@ -1190,7 +1343,7 @@ type
duration: cint64;
(**
- * Decoding: total stream bitrate in bit/s, 0 if not
+ * Total stream bitrate in bit/s, 0 if not
* available. Never set it directly if the file_size and the
* duration are known as ffmpeg can compute it automatically.
*)
@@ -1202,13 +1355,16 @@ type
flags: cint;
(**
- * decoding: size of data to probe; encoding: unused.
+ * Maximum size of the data read from input for determining
+ * the input container format.
+ * Demuxing only, set by the caller before avformat_open_input().
*)
probesize: cuint;
(**
- * decoding: maximum time (in AV_TIME_BASE units) during which the input should
- * be analyzed in avformat_find_stream_info().
+ * Maximum duration (in AV_TIME_BASE units) of the data read
+ * from input in avformat_find_stream_info().
+ * Demuxing only, set by the caller before avformat_find_stream_info().
*)
max_analyze_duration: cint;
@@ -1243,8 +1399,8 @@ type
* accurate seeking (depends on demuxer).
* Demuxers for which a full in-memory index is mandatory will ignore
* this.
- * muxing : unused
- * demuxing: set by user
+ * - muxing: unused
+ * - demuxing: set by user
*)
max_index_size: cuint;
@@ -1257,35 +1413,43 @@ type
nb_chapters: cuint;
chapters: PAVChapterArray;
+ (**
+ * Metadata that applies to the whole file.
+ *
+ * - demuxing: set by libavformat in avformat_open_input()
+ * - muxing: may be set by the caller before avformat_write_header()
+ *
+ * Freed by libavformat in avformat_free_context().
+ *)
metadata: PAVDictionary;
(**
* 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.
+ * since the Unix epoch (00:00 1st January 1970). That is, pts=0 in the
+ * stream was captured at this real world time.
+ * Muxing only, set by the caller before avformat_write_header().
*)
start_time_realtime: cint64;
(**
- * decoding: number of frames used to probe fps
+ * The number of frames used for determining the framerate in
+ * avformat_find_stream_info().
+ * Demuxing only, set by the caller before avformat_find_stream_info().
*)
fps_probe_size: cint;
(**
* 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.
+ * Demuxing only, set by the caller before avformat_open_input().
*)
error_recognition: cint;
(**
* Custom interrupt callbacks for the I/O layer.
*
- * decoding: set by the user before avformat_open_input().
- * encoding: set by the user before avformat_write_header()
+ * demuxing: set by the user before avformat_open_input().
+ * muxing: set by the user before avformat_write_header()
* (mainly useful for AVFMT_NOFILE formats). The callback
* should also be passed to avio_open2() if it's used to
* open the file.
@@ -1298,6 +1462,24 @@ type
debug: cint;
(**
+ * Maximum buffering duration for interleaving.
+ *
+ * To ensure all the streams are interleaved correctly,
+ * av_interleaved_write_frame() will wait until it has at least one packet
+ * for each stream before actually writing any packets to the output file.
+ * When some streams are "sparse" (i.e. there are large gaps between
+ * successive packets), this can result in excessive buffering.
+ *
+ * This field specifies the maximum difference between the timestamps of the
+ * first and the last packet in the muxing queue, above which libavformat
+ * will output a packet regardless of whether it has queued a packet for all
+ * the streams.
+ *
+ * Muxing only, set by the caller before avformat_write_header().
+ *)
+ max_interleave_delta: cint64;
+
+ (**
* Transport stream id.
* This will be moved into demuxer private options. Thus no API/ABI compatibility
*)
@@ -1439,6 +1621,12 @@ type
offset_timebase: TAVRational;
(**
+ * An opaque field for libavformat internal usage.
+ * Must not be accessed in any way by callers.
+ *)
+ internal: PAVFormatInternal;
+
+ (**
* IO repositioned flag.
* This is set by avformat when the underlaying IO context read pointer
* is repositioned, for example when doing byte based seeking.
@@ -1446,7 +1634,98 @@ type
*)
io_repositioned: cint;
-end; (** TAVFormatContext **)
+ (**
+ * Forced video codec.
+ * This allows forcing a specific decoder, even when there are multiple with
+ * the same codec_id.
+ * Demuxing: Set by user via av_format_set_video_codec (NO direct access).
+ *)
+ video_codec: PAVCodec;
+
+ (**
+ * Forced audio codec.
+ * This allows forcing a specific decoder, even when there are multiple with
+ * the same codec_id.
+ * Demuxing: Set by user via av_format_set_audio_codec (NO direct access).
+ *)
+ audio_codec: PAVCodec;
+
+ (**
+ * Forced subtitle codec.
+ * This allows forcing a specific decoder, even when there are multiple with
+ * the same codec_id.
+ * Demuxing: Set by user via av_format_set_subtitle_codec (NO direct access).
+ *)
+ subtitle_codec: PAVCodec;
+
+ (**
+ * Number of bytes to be written as padding in a metadata header.
+ * Demuxing: Unused.
+ * Muxing: Set by user via av_format_set_metadata_header_padding.
+ *)
+ metadata_header_padding: cint;
+
+ (**
+ * User data.
+ * This is a place for some private data of the user.
+ * Mostly usable with control_message_cb or any future callbacks in device's context.
+ *)
+ opaque: pointer;
+
+ (**
+ * Callback used by devices to communicate with application.
+ *)
+ control_message_cb: TAv_format_control_message;
+
+ (**
+ * Output timestamp offset, in microseconds.
+ * Muxing: set by user via AVOptions (NO direct access)
+ *)
+ output_ts_offset: cint64;
+
+ end; (** TAVFormatContext **)
+
+ function av_format_get_probe_score(s: {const} PAVFormatContext): cint;
+ cdecl; external av__format;
+ function av_format_get_video_codec(s: {const} PAVFormatContext): PAVCodec;
+ cdecl; external av__format;
+ procedure av_format_set_video_codec(s: PAVFormatContext; c: PAVCodec);
+ cdecl; external av__format;
+ function av_format_get_audio_codec(s: {const} PAVFormatContext): PAVCodec;
+ cdecl; external av__format;
+ procedure av_format_set_audio_codec(s: PAVFormatContext; c: PAVCodec);
+ cdecl; external av__format;
+ function av_format_get_subtitle_codec(s: {const} PAVFormatContext): PAVCodec;
+ cdecl; external av__format;
+ procedure av_format_set_subtitle_codec(s: PAVFormatContext; c: PAVCodec);
+ cdecl; external av__format;
+ function av_format_get_metadata_header_padding(s: {const} PAVFormatContext): cint;
+ cdecl; external av__format;
+ procedure av_format_set_metadata_header_padding(s: PAVFormatContext; c: cint);
+ cdecl; external av__format;
+ procedure av_format_get_opaque(s: {const} PAVFormatContext);
+ cdecl; external av__format;
+ procedure av_format_set_opaque(s: PAVFormatContext; opaque: pointer);
+ cdecl; external av__format;
+ function av_format_get_control_message_cb(s: {const} PAVFormatContext): TAv_format_control_message;
+ cdecl; external av__format;
+ procedure av_format_set_control_message_cb(s: PAVFormatContext; callback: TAv_format_control_message);
+ cdecl; external av__format;
+
+ (** From libavdevice/avdevice.h **)
+ PPAVDeviceInfo = ^PAVDeviceInfo;
+ PAVDeviceInfo = ^TAVDeviceInfo;
+ TAVDeviceInfo = record
+ device_name: PAnsiChar; (**< device name, format depends on device *)
+ device_description: PAnsiChar; (**< human friendly name *)
+ end; {TAVDeviceInfo}
+
+ PAVDeviceInfoList = ^TAVDeviceInfoList;
+ TAVDeviceInfoList = record
+ devices: PPAVDeviceInfo; (**< list of autodetected devices *)
+ nb_devices: cint; (**< number of autodetected devices *)
+ default_device: cint; (**< index of default device or -1 if no default *)
+ end; {TAVDeviceInfoList}
function av_stream_get_r_frame_rate({const} s: PAVStream): TAVRational;
cdecl; external av__format;
@@ -1570,6 +1849,10 @@ function avformat_get_class(): {const} PAVClass;
*
* When muxing, should be called by the user before avformat_write_header().
*
+ * User is required to call avcodec_close() and avformat_free_context() to
+ * clean up the allocation by avformat_new_stream().
+ *
+ * @param s media file handle
* @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.
@@ -1635,8 +1918,9 @@ function av_find_input_format(short_name: PAnsiChar): PAVInputFormat;
cdecl; external av__format;
(**
- * Guess file format.
+ * Guess the file format.
*
+ * @param pd data to be probed
* @param is_opened Whether the file is already opened; determines whether
* demuxers with or without AVFMT_NOFILE are probed.
*)
@@ -1646,6 +1930,7 @@ function av_probe_input_format(pd: PAVProbeData; is_opened: cint): PAVInputForma
(**
* Guess the file format.
*
+ * @param pd data to be probed
* @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
@@ -1844,6 +2129,8 @@ function av_read_frame(s: PAVFormatContext; var pkt: TAVPacket): cint;
(**
* Seek to the keyframe at timestamp.
* 'timestamp' in 'stream_index'.
+ *
+ * @param s media file handle
* @param stream_index If stream_index is (-1), a default
* stream is selected, and timestamp is automatically converted
* from AV_TIME_BASE units to the stream specific time_base.
@@ -1873,6 +2160,7 @@ function av_seek_frame(s: PAVFormatContext; stream_index: cint; timestamp: cint6
* keyframes (this may not be supported by all demuxers).
* If flags contain AVSEEK_FLAG_BACKWARD, it is ignored.
*
+ * @param s media file handle
* @param stream_index index of the stream which is used as time base reference
* @param min_ts smallest acceptable timestamp
* @param ts target timestamp
@@ -1976,35 +2264,117 @@ function avformat_write_header(s: PAVFormatContext; options: {PPAVDictionary} po
cdecl; external av__format;
(**
+ * Write a packet to an output media file.
+ *
+ * This function passes the packet directly to the muxer, without any buffering
+ * or reordering. The caller is responsible for correctly interleaving the
+ * packets if the format requires it. Callers that want libavformat to handle
+ * the interleaving should call av_interleaved_write_frame() instead of this
+ * function.
+ *
+ * @param s media file handle
+ * @param pkt The packet containing the data to be written. Note that unlike
+ * av_interleaved_write_frame(), this function does not take
+ * ownership of the packet passed to it (though some muxers may make
+ * an internal reference to the input packet).
+ * <br>
+ * This parameter can be NULL (at any time, not just at the end), in
+ * order to immediately flush data buffered within the muxer, for
+ * muxers that buffer up data internally before writing it to the
+ * output.
+ * <br>
+ * Packet's @ref AVPacket.stream_index "stream_index" field must be
+ * set to the index of the corresponding stream in @ref
+ * AVFormatContext.streams "s->streams". It is very strongly
+ * recommended that timing information (@ref AVPacket.pts "pts", @ref
+ * AVPacket.dts "dts", @ref AVPacket.duration "duration") is set to
+ * correct values.
+ * @return < 0 on error, = 0 if OK, 1 if flushed and there is no more data to flush
+ *
+ * @see av_interleaved_write_frame()
+ *)
+function av_write_frame(s: PAVFormatContext; pkt: PAVPacket): cint;
+ cdecl; external av__format;
+
+(**
* Write a packet to an output media file ensuring correct interleaving.
*
- * The packet must contain one audio or video frame.
- * If the packets are already correctly interleaved, the application should
- * call av_write_frame() instead as it is slightly faster. It is also important
- * to keep in mind that completely non-interleaved input will need huge amounts
- * of memory to interleave with this, so it is preferable to interleave at the
- * demuxer level.
+ * This function will buffer the packets internally as needed to make sure the
+ * packets in the output file are properly interleaved in the order of
+ * increasing dts. Callers doing their own interleaving should call
+ * av_write_frame() instead of this function.
*
* @param s media file handle
- * @param pkt The packet containing the data to be written. pkt->buf must be set
- * to a valid AVBufferRef describing the packet data. Libavformat takes
- * ownership of this reference and will unref it when it sees fit. The caller
- * must not access the data through this reference after this function returns.
- * This can be NULL (at any time, not just at the end), to flush the
- * interleaving queues.
- * Packet's @ref AVPacket.stream_index "stream_index" field must be set to the
- * index of the corresponding stream in @ref AVFormatContext.streams
- * "s.streams".
- * It is very strongly recommended that timing information (@ref AVPacket.pts
- * "pts", @ref AVPacket.dts "dts" @ref AVPacket.duration "duration") is set to
- * correct values.
- *
- * @return 0 on success, a negative AVERROR on error.
+ * @param pkt The packet containing the data to be written.
+ * <br>
+ * If the packet is reference-counted, this function will take
+ * ownership of this reference and unreference it later when it sees
+ * fit.
+ * The caller must not access the data through this reference after
+ * this function returns. If the packet is not reference-counted,
+ * libavformat will make a copy.
+ * <br>
+ * This parameter can be NULL (at any time, not just at the end), to
+ * flush the interleaving queues.
+ * <br>
+ * Packet's @ref AVPacket.stream_index "stream_index" field must be
+ * set to the index of the corresponding stream in @ref
+ * AVFormatContext.streams "s->streams". It is very strongly
+ * recommended that timing information (@ref AVPacket.pts "pts", @ref
+ * AVPacket.dts "dts", @ref AVPacket.duration "duration") is set to
+ * correct values.
+ *
+ * @return 0 on success, a negative AVERROR on error. Libavformat will always
+ * take care of freeing the packet, even if this function fails.
+ *
+ * @see av_write_frame(), AVFormatContext.max_interleave_delta
*)
function av_interleaved_write_frame(s: PAVFormatContext; var pkt: TAVPacket): cint;
cdecl; external av__format;
(**
+ * Write a uncoded frame to an output media file.
+ *
+ * The frame must be correctly interleaved according to the container
+ * specification; if not, then av_interleaved_write_frame() must be used.
+ *
+ * See av_interleaved_write_frame() for details.
+ *)
+function av_write_uncoded_frame(s: PAVFormatContext; stream_index: cint;
+ frame: PAVFrame): cint;
+ cdecl; external av__format;
+
+(**
+ * Write a uncoded frame to an output media file.
+ *
+ * If the muxer supports it, this function allows to write an AVFrame
+ * structure directly, without encoding it into a packet.
+ * It is mostly useful for devices and similar special muxers that use raw
+ * video or PCM data and will not serialize it into a byte stream.
+ *
+ * To test whether it is possible to use it with a given muxer and stream,
+ * use av_write_uncoded_frame_query().
+ *
+ * The caller gives up ownership of the frame and must not access it
+ * afterwards.
+ *
+ * @return >=0 for success, a negative code on error
+ *)
+function av_interleaved_write_uncoded_frame(s: PAVFormatContext; stream_index: cint;
+ frame: PAVFrame): cint;
+ cdecl; external av__format;
+
+
+(**
+ * Test whether a muxer supports uncoded frame.
+ *
+ * @return >=0 if an uncoded frame can be written to that muxer and stream,
+ * <0 if not
+ *)
+function av_write_uncoded_frame_query(s: PAVFormatContext; stream_index: cint): cint;
+ cdecl; external av__format;
+
+(**
* Write the stream trailer to an output media file and free the
* file private data.
*
@@ -2134,6 +2504,7 @@ procedure av_pkt_dump_log2(avcl: pointer; level: cint; pkt: PAVPacket; dump_payl
*
* @param tags list of supported codec_id-codec_tag pairs, as stored
* in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ * @param tag codec tag to match to a codec ID
*)
function av_codec_get_id(var tags: PAVCodecTag; tag: cuint): TAVCodecID;
cdecl; external av__format;
@@ -2144,6 +2515,7 @@ function av_codec_get_id(var tags: PAVCodecTag; tag: cuint): TAVCodecID;
*
* @param tags list of supported codec_id-codec_tag pairs, as stored
* in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ * @param id codec ID to match to a codec tag
*)
function av_codec_get_tag(var tags: PAVCodecTag; id: TAVCodecID): cuint;
cdecl; external av__format;
@@ -2166,6 +2538,9 @@ function av_find_default_stream_index(s: PAVFormatContext): cint;
(**
* Get the index for a specific timestamp.
+ *
+ * @param st stream that the timestamp belongs to
+ * @param timestamp timestamp to retrieve the index for
* @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond
* to the timestamp which is <= the requested one, if backward
* is 0, then it will be >=
@@ -2267,6 +2642,7 @@ function av_sdp_create(ac: pointer; n_files: cint; buf: PAnsiChar; size: cint):
* Return a positive value if the given filename has one of the given
* extensions, 0 otherwise.
*
+ * @param filename file name to check against the given extensions
* @param extensions a comma-separated list of filename extensions
*)
function av_match_ext(filename: {const} Pchar; extensions: {const} Pchar): cint;
@@ -2275,6 +2651,8 @@ function av_match_ext(filename: {const} Pchar; extensions: {const} Pchar): cint;
(**
* Test if the given container can store a codec.
*
+ * @param ofmt container to check for compatibility
+ * @param codec_id codec to potentially store in container
* @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.
@@ -2307,6 +2685,15 @@ function avformat_get_riff_audio_tags(): {const} PAVCodecTag;
cdecl; external av__format;
(**
+ * @return the table mapping MOV FourCCs for video to libavcodec AVCodecID.
+ *)
+function avformat_get_mov_video_tags(): {const} PAVCodecTag;
+(**
+ * @return the table mapping MOV FourCCs for audio to AVCodecID.
+ *)
+function avformat_get_mov_audio_tags(): {const} PAVCodecTag;
+
+(**
* Guess the sample aspect ratio of a frame, based on both the stream and the
* frame aspect ratio.
*