diff options
Diffstat (limited to '')
| -rw-r--r-- | Lua/src/lib/ffmpeg/avformat.pas | 578 |
1 files changed, 445 insertions, 133 deletions
diff --git a/Lua/src/lib/ffmpeg/avformat.pas b/Lua/src/lib/ffmpeg/avformat.pas index c516aea0..2b8a5e4f 100644 --- a/Lua/src/lib/ffmpeg/avformat.pas +++ b/Lua/src/lib/ffmpeg/avformat.pas @@ -27,8 +27,13 @@ (* * Conversion of libavformat/avformat.h * Min. version: 50.5.0 , revision 6577, Sat Oct 7 15:30:46 2006 UTC - * Max. version: 52.22.1, revision 15441, Sat Sep 27 20:05:12 2008 UTC + * Max. version: 52.25.0, revision 16986, Wed Feb 4 05:56:39 2009 UTC *) +{ + * update to + * Max. version: 52.41.0, Sun Dec 6 20:15:00 2009 CET + * MiSchi +} unit avformat; @@ -54,13 +59,14 @@ uses avutil, avio, rational, + SysUtils, UConfig; const (* Max. supported version by this header *) LIBAVFORMAT_MAX_VERSION_MAJOR = 52; - LIBAVFORMAT_MAX_VERSION_MINOR = 22; - LIBAVFORMAT_MAX_VERSION_RELEASE = 1; + LIBAVFORMAT_MAX_VERSION_MINOR = 41; + LIBAVFORMAT_MAX_VERSION_RELEASE = 0; LIBAVFORMAT_MAX_VERSION = (LIBAVFORMAT_MAX_VERSION_MAJOR * VERSION_MAJOR) + (LIBAVFORMAT_MAX_VERSION_MINOR * VERSION_MINOR) + (LIBAVFORMAT_MAX_VERSION_RELEASE * VERSION_RELEASE); @@ -91,33 +97,105 @@ function avformat_version(): cuint; cdecl; external av__format; {$IFEND} +{$IF LIBAVFORMAT_VERSION >= 52039002} // 52.39.2 +(** + * Returns the libavformat build-time configuration. + *) +function avformat_configuration(): {const} PansiChar; + cdecl; external av__format; + +(** + * Returns the libavformat license. + *) +function avformat_license(): {const} PansiChar; + cdecl; external av__format; +{$IFEND} type PAVFile = Pointer; +(* + * Public Metadata API. + * The metadata API allows libavformat to export metadata tags to a client + * application using a sequence of key/value pairs. + * Important concepts to keep in mind: + * 1. Keys are unique; there can never be 2 tags with the same key. This is + * also meant semantically, i.e., a demuxer should not knowingly produce + * several keys that are literally different but semantically identical. + * E.g., key=Author5, key=Author6. In this example, all authors must be + * placed in the same tag. + * 2. Metadata is flat, not hierarchical; there are no subtags. If you + * want to store, e.g., the email address of the child of producer Alice + * and actor Bob, that could have key=alice_and_bobs_childs_email_address. + * 3. A tag whose value is localized for a particular language is appended + * with a dash character ('-') and the ISO 639-2/B 3-letter language code. + * For example: Author-ger=Michael, Author-eng=Mike + * The original/default language is in the unqualified "Author" tag. + * A demuxer should set a default if it sets any translated tag. + *) +const + AV_METADATA_MATCH_CASE = 1; + AV_METADATA_IGNORE_SUFFIX = 2; + +type + PAVMetadataTag = ^TAVMetadataTag; + TAVMetadataTag = record + key: PAnsiChar; + value: PAnsiChar; + end; + + PAVMetadata = Pointer; + +{$IF LIBAVFORMAT_VERSION > 52024001} // > 52.24.1 +(** + * Gets a metadata element with matching key. + * @param prev Set to the previous matching element to find the next. + * @param flags Allows case as well as suffix-insensitive comparisons. + * @return Found tag or NULL, changing key or value leads to undefined behavior. + *) +function av_metadata_get(m: PAVMetadata; key: {const} PAnsiChar; + prev: {const} PAVMetadataTag ; flags: cint): PAVMetadataTag; + cdecl; external av__format; + +(** + * 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 + *) +function av_metadata_set(var pm: PAVMetadata; key: {const} PAnsiChar; value: {const} PAnsiChar): cint; + cdecl; external av__format; + +(** + * Frees all the memory allocated for an AVMetadata struct. + *) +procedure av_metadata_free(var m: PAVMetadata); + cdecl; external av__format; +{$IFEND} + (* packet functions *) +{$IF LIBAVCODEC_VERSION < 52032000} // < 52.32.0 type PAVPacket = ^TAVPacket; TAVPacket = record (** - * Presentation time stamp in time_base units. - * This is the time at which the decompressed packet will be presented - * to the user. + * Presentation timestamp in time_base units; the time at which the + * decompressed packet will be presented to the user. * Can be AV_NOPTS_VALUE if it is not stored in the file. * pts MUST be larger or equal to dts as presentation can not happen before * decompression, unless one wants to view hex dumps. Some formats misuse - * the terms dts and pts/cts to mean something different, these timestamps + * the terms dts and pts/cts to mean something different. Such timestamps * must be converted to true pts/dts before they are stored in AVPacket. *) pts: cint64; (** - * Decompression time stamp in time_base units. - * This is the time at which the packet is decompressed. + * Decompression timestamp in time_base units; the time at which the + * packet is decompressed. * Can be AV_NOPTS_VALUE if it is not stored in the file. *) dts: cint64; - data: PChar; + data: PByteArray; size: cint; stream_index: cint; flags: cint; @@ -126,7 +204,7 @@ type * Equals next_pts - this_pts in presentation order. *) duration: cint; - destruct: procedure (p: PAVPacket); cdecl; + destruct: procedure (p: PAVPacket); cdecl; priv: pointer; pos: cint64; ///< byte position in stream, -1 if unknown @@ -182,6 +260,7 @@ procedure av_init_packet(var pkt: TAVPacket); *) function av_new_packet(var pkt: TAVPacket; size: cint): cint; cdecl; external av__format; +{$IFEND} (** * Allocate and read the payload of a packet and initialize its fields with @@ -194,6 +273,7 @@ function av_new_packet(var pkt: TAVPacket; size: cint): cint; function av_get_packet(s: PByteIOContext; var pkt: TAVPacket; size: cint): cint; cdecl; external av__format; +{$IF LIBAVCODEC_VERSION < 52032000} // < 52.32.0 (** * @warning This is a hack - the packet memory allocation stuff is broken. The * packet is allocated if it was not really allocated. @@ -207,6 +287,7 @@ function av_dup_packet(pkt: PAVPacket): cint; * @param pkt packet to free *) procedure av_free_packet(pkt: PAVPacket); {$IFDEF HasInline}inline;{$ENDIF} +{$IFEND} (*************************************************) (* fractional numbers for exact pts handling *) @@ -215,12 +296,11 @@ type (** * The exact value of the fractional number is: 'val + num / den'. * num is assumed to be 0 <= num < den. - * @deprecated Use AVRational instead. *) PAVFrac = ^TAVFrac; TAVFrac = record val, num, den: cint64; - end; {deprecated} + end; (*************************************************) (* input/output formats *) @@ -228,13 +308,13 @@ type type (** This structure contains the data a format has to probe a file. *) TAVProbeData = record - filename: pchar; - buf: pchar; - buf_size: cint; + filename: PAnsiChar; + buf: PByteArray; (**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. *) + buf_size: cint; (**< Size of buf except extra allocated bytes *) end; const - AVPROBE_SCORE_MAX = 100; ///< Maximum score, half of that is used for file-extension-based detection. + AVPROBE_SCORE_MAX = 100; ///< Maximum score, half of that is used for file-extension-based detection AVPROBE_PADDING_SIZE = 32; ///< extra allocated bytes at the end of the probe buffer //! Demuxer will use url_fopen, no opened file should be provided by the caller. @@ -247,6 +327,9 @@ const AVFMT_NOTIMESTAMPS = $0080; (**< Format does not need / have any timestamps. *) AVFMT_GENERIC_INDEX = $0100; (**< Use generic index building code. *) AVFMT_TS_DISCONT = $0200; (**< Format allows timestamp discontinuities. *) + {$IF LIBAVFORMAT_VERSION >= 52029002} // 52.29.2 + AVFMT_VARIABLE_FPS = $0400; (**< Format allows variable fps. *) + {$IFEND} // used by AVIndexEntry AVINDEX_KEYFRAME = $0001; @@ -257,7 +340,7 @@ const AVFMT_NOOUTPUTLOOP = -1; AVFMT_INFINITEOUTPUTLOOP = 0; - AVFMT_FLAG_GENPTS = $0001; ///< Generate pts if missing even if it requires parsing future frames. + AVFMT_FLAG_GENPTS = $0001; ///< Generate missing pts even if it requires parsing future frames. AVFMT_FLAG_IGNIDX = $0002; ///< Ignore index. AVFMT_FLAG_NONBLOCK = $0004; ///< Do not block when reading packets from input. @@ -276,7 +359,23 @@ const AV_DISPOSITION_KARAOKE = $0020; // used by TAVFormatContext.debug - FF_FDEBUG_TS = 0001; + FF_FDEBUG_TS = 0001; + + {$IF LIBAVFORMAT_VERSION >= 52034000} // >= 52.34.0 + {$IF LIBAVFORMAT_VERSION < 52039000} // < 52.39.0 + MAX_PROBE_PACKETS = 100; + {$ELSE} + MAX_PROBE_PACKETS = 2500; + {$IFEND} + {$IFEND} + + {$IF LIBAVFORMAT_VERSION >= 52035000} // >= 52.35.0 + {$IF LIBAVFORMAT_VERSION < 52039000} // < 52.39.0 + RAW_PACKET_BUFFER_SIZE 32000 + {$ELSE} + RAW_PACKET_BUFFER_SIZE 2500000 + {$IFEND} + {$IFEND} type PPAVCodecTag = ^PAVCodecTag; @@ -304,12 +403,32 @@ type PAVImageInfo = ^TAVImageInfo; {$IFEND} +{$IF LIBAVFORMAT_VERSION >= 52030001} // >= 52.30.1 +(** + * Convert all the metadata sets from ctx according to the source and + * destination conversion tables. + * @param d_conv destination tags format conversion table + * @param s_conv source tags format conversion table + *) + PAVMetadataConv = ^TAVMetadataConv; + TAVMetadataConv = record + ctx: PAVFormatContext; + d_conv: {const} PAVMetadataConv; + s_conv: {const} PAVMetadataConv; + end; +{$IFEND} + PAVChapter = ^TAVChapter; TAVChapter = record id: cint; ///< unique ID to identify the chapter time_base: TAVRational; ///< time base in which the start/end timestamps are specified start, end_: cint64; ///< chapter start/end time in time_base units - title: PChar; ///< chapter title + {$IF LIBAVFORMAT_VERSION < 53000000} // 53.00.0 + title: PAnsiChar; ///< chapter title + {$IFEND} + {$IF LIBAVFORMAT_VERSION >= 52024001} // 52.24.1 + metadata: PAVMetadata; + {$IFEND} end; TAVChapterArray = array[0..(MaxInt div SizeOf(TAVChapter))-1] of TAVChapter; PAVChapterArray = ^TAVChapterArray; @@ -326,9 +445,9 @@ type {$IFEND} channel: cint; (**< Used to select DV channel. *) {$IF LIBAVFORMAT_VERSION_MAJOR < 52} - device: pchar; (* video, audio or DV device, if LIBAVFORMAT_VERSION_INT < (52<<16) *) + device: PAnsiChar; (* video, audio or DV device, if LIBAVFORMAT_VERSION_INT < (52<<16) *) {$IFEND} - standard: pchar; (**< TV standard, NTSC, PAL, SECAM *) + standard: PAnsiChar; (**< TV standard, NTSC, PAL, SECAM *) { Delphi does not support bit fields -> use bf_flags instead unsigned int mpeg2ts_raw:1; (**< Force raw MPEG-2 transport stream output, if possible. *) unsigned int mpeg2ts_compute_pcr:1; (**< Compute exact PCR for each transport @@ -346,16 +465,16 @@ type end; TAVOutputFormat = record - name: pchar; + name: PAnsiChar; (** * Descriptive name for the format, meant to be more human-readable - * than \p name. You \e should use the NULL_IF_CONFIG_SMALL() macro + * than name. You should use the NULL_IF_CONFIG_SMALL() macro * to define it. *) - long_name: pchar; - mime_type: pchar; - extensions: pchar; (**< comma-separated filename extensions *) - (** Size of private data so that it can be allocated in the wrapper. *) + long_name: PAnsiChar; + mime_type: PAnsiChar; + extensions: PAnsiChar; (**< comma-separated filename extensions *) + (** size of private data so that it can be allocated in the wrapper *) priv_data_size: cint; (* output support *) audio_codec: TCodecID; (**< default audio codec *) @@ -373,7 +492,7 @@ type {$IF LIBAVFORMAT_VERSION >= 51008000} // 51.8.0 (** * List of supported codec_id-codec_tag pairs, ordered by "better - * choice first". The arrays are all CODEC_ID_NONE terminated. + * choice first". The arrays are all terminated by CODEC_ID_NONE. *) codec_tag: {const} PPAVCodecTag; {$IFEND} @@ -382,22 +501,26 @@ type subtitle_codec: TCodecID; (**< default subtitle codec *) {$IFEND} + {$IF LIBAVFORMAT_VERSION >= 52030001} // 52.30.1 + {const} metadata_conv: PAVMetadataConv; + {$IFEND} + (* private fields *) next: PAVOutputFormat; end; TAVInputFormat = record - name: pchar; + name: PAnsiChar; (** * Descriptive name for the format, meant to be more human-readable - * than \p name. You \e should use the NULL_IF_CONFIG_SMALL() macro + * than name. You should use the NULL_IF_CONFIG_SMALL() macro * to define it. *) - long_name: pchar; + long_name: PAnsiChar; (** Size of private data so that it can be allocated in the wrapper. *) priv_data_size: cint; (** - * Tell if a given file has a chance of being parsed by this format. + * Tell if a given file has a chance of being parsed as this format. * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes * big so you do not have to check for that unless you need more. *) @@ -409,21 +532,28 @@ type read_header: function (c: PAVFormatContext; ap: PAVFormatParameters): cint; cdecl; (** Read one packet and put it in 'pkt'. pts and flags are also set. 'av_new_stream' can be called only if the flag - AVFMTCTX_NOHEADER is used. *) + AVFMTCTX_NOHEADER is used. + @return 0 on success, < 0 on error. + When returning an error, pkt must not have been allocated + or must be freed before returning *) read_packet: function (c: PAVFormatContext; var pkt: TAVPacket): cint; cdecl; (** Close the stream. The AVFormatContext and AVStreams are not freed by this function *) read_close: function (c: PAVFormatContext): cint; cdecl; + +{$IF LIBAVFORMAT_VERSION_MAJOR < 53} (** * Seek to a given timestamp relative to the frames in * stream component stream_index. - * @param stream_index must not be -1 - * @param flags selects which direction should be preferred if no exact - * match is available + * @param stream_index Must not be -1. + * @param flags Selects which direction should be preferred if no exact + * match is available. * @return >= 0 on success (but not necessarily the new offset) *) read_seek: function (c: PAVFormatContext; stream_index: cint; timestamp: cint64; flags: cint): cint; cdecl; +{$IFEND} + (** * Gets the next timestamp in stream[stream_index].time_base units. * @return the timestamp or AV_NOPTS_VALUE if an error occurred @@ -435,15 +565,15 @@ type (** If extensions are defined, then no probe is done. You should usually not use extension format guessing because it is not reliable enough *) - extensions: pchar; + extensions: PAnsiChar; (** General purpose read-only value that the format can use. *) value: cint; - (** Start/resume playing - only meaningful if using a network-based format + (** Starts/resumes playing - only meaningful if using a network-based format (RTSP). *) read_play: function (c: PAVFormatContext): cint; cdecl; - (** Pause playing - only meaningful if using a network-based format + (** Pauses playing - only meaningful if using a network-based format (RTSP). *) read_pause: function (c: PAVFormatContext): cint; cdecl; @@ -451,6 +581,25 @@ type codec_tag: {const} PPAVCodecTag; {$IFEND} + {$IF LIBAVFORMAT_VERSION >= 52030000} // 52.30.0 + (** + * 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. + *) + read_seek2: function (s: PAVFormatContext; + stream_index: cint; + min_ts: cint64; + ts: cint64; + max_ts: cint64; + flags: cint): cint; cdecl; + {$IFEND} + + {$IF LIBAVFORMAT_VERSION >= 52030001} // 52.30.1 + {const} metadata_conv: PAVMetadataConv; + {$IFEND} + (* private fields *) next: PAVInputFormat; end; @@ -485,11 +634,11 @@ type id: cint; (**< format-specific stream ID *) codec: PAVCodecContext; (**< codec context *) (** - * Real base frame rate of the stream. - * This is the lowest frame rate with which all timestamps can be + * Real base framerate of the stream. + * This is the lowest framerate with which all timestamps can be * represented accurately (it is the least common multiple of all - * frame rates in the stream). Note, this value is just a guess! - * For example if the timebase is 1/90000 and all frames have either + * framerates in the stream). Note, this value is just a guess! + * For example, if the time base is 1/90000 and all frames have either * approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1. *) r_frame_rate: TAVRational; @@ -506,7 +655,7 @@ type (** * This is the fundamental unit of time (in seconds) in terms * of which frame timestamps are represented. For fixed-fps content, - * time base should be 1/frame rate and timestamp increments should be 1. + * time base should be 1/framerate and timestamp increments should be 1. *) time_base: TAVRational; pts_wrap_bits: cint; (* number of bits in pts (used for wrapping control) *) @@ -533,7 +682,9 @@ type *) duration: cint64; - language: array [0..3] of char; (* ISO 639 3-letter language code (empty string if undefined) *) + {$IF LIBAVFORMAT_VERSION_MAJOR < 53} + language: array [0..3] of PAnsiChar; (* ISO 639-2/B 3-letter language code (empty string if undefined) *) + {$IFEND} (* av_read_frame() support *) need_parsing: TAVStreamParseType; @@ -554,8 +705,8 @@ type unused: array [0..4] of cint64; {$IFEND} - {$IF LIBAVFORMAT_VERSION >= 52006000} // 52.6.0 - filename: PChar; (**< source filename of the stream *) + {$IF (LIBAVFORMAT_VERSION >= 52006000) and (LIBAVFORMAT_VERSION_MAJOR < 53)} // 52.6.0 - 53.0.0 + filename: PAnsiChar; (**< source filename of the stream *) {$IFEND} {$IF LIBAVFORMAT_VERSION >= 52008000} // 52.8.0 @@ -576,6 +727,43 @@ type *) sample_aspect_ratio: TAVRational; {$IFEND} + + {$IF LIBAVFORMAT_VERSION >= 52024001} // 52.24.1 + metadata: PAVMetadata; + {$IFEND} + + {$IF LIBAVFORMAT_VERSION > 52024001} // > 52.24.1 + {* av_read_frame() support *} + cur_ptr: {const} PCuint8; + cur_len: cint; + cur_pkt: TAVPacket; + {$IFEND} + + {$IF LIBAVFORMAT_VERSION >= 52030000} // > 52.30.0 + // Timestamp generation support: + (** + * Timestamp corresponding to the last dts sync point. + * + * Initialized when AVCodecParserContext.dts_sync_point >= 0 and + * a DTS is received from the underlying container. Otherwise set to + * AV_NOPTS_VALUE by default. + *) + reference_dts: cint64; + {$IFEND} + {$IF LIBAVFORMAT_VERSION >= 52034000} // >= 52.34.0 + (** + * Number of packets to buffer for codec probing + * NOT PART OF PUBLIC API + *) + probe_packets: cint; + {$IFEND} + {$IF LIBAVFORMAT_VERSION >= 52038000} // >= 52.38.0 + (** + * 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* + *) + last_in_packet_buffer: PAVPacketList; + {$IFEND} end; (** @@ -586,7 +774,7 @@ type * sizeof(AVFormatContext) must not be used outside libav*. *) TAVFormatContext = record - av_class: PAVClass; (**< Set by av_alloc_format_context. *) + av_class: PAVClass; (**< Set by avformat_alloc_context. *) (* Can only be iformat or oformat, not both at the same time. *) iformat: PAVInputFormat; oformat: PAVOutputFormat; @@ -600,17 +788,19 @@ type nb_streams: cuint; streams: array [0..MAX_STREAMS - 1] of PAVStream; - filename: array [0..1023] of char; (* input or output filename *) + filename: array [0..1023] of AnsiChar; (* input or output filename *) (* stream info *) timestamp: cint64; - title: array [0..511] of char; - author: array [0..511] of char; - copyright: array [0..511] of char; - comment: array [0..511] of char; - album: array [0..511] of char; + {$IF LIBAVFORMAT_VERSION < 53000000} // 53.00.0 + title: array [0..511] of AnsiChar; + author: array [0..511] of AnsiChar; + copyright: array [0..511] of AnsiChar; + comment: array [0..511] of AnsiChar; + album: array [0..511] of AnsiChar; year: cint; (**< ID3 year, 0 if none *) track: cint; (**< track number, 0 if none *) - genre: array [0..31] of char; (**< ID3 genre *) + genre: array [0..31] of AnsiChar; (**< ID3 genre *) + {$IFEND} ctx_flags: cint; (**< Format-specific flags, see AVFMTCTX_xx *) (* private data for pts handling (do not modify directly). *) @@ -636,16 +826,22 @@ type (* av_read_frame() support *) cur_st: PAVStream; - cur_ptr: pbyte; - cur_len: cint; - cur_pkt: TAVPacket; + {$IF LIBAVFORMAT_VERSION_MAJOR < 53} + cur_ptr_deprecated: pbyte; + cur_len_deprecated: cint; + cur_pkt_deprecated: TAVPacket; + {$IFEND} (* av_seek_frame() support *) data_offset: cint64; (* offset of the first packet *) index_built: cint; mux_rate: cint; + {$IF LIBAVFORMAT_VERSION < 52034001} // < 52.34.1 packet_size: cint; + {$ELSE} + packet_size: cuint; + {$IFEND} preload: cint; max_delay: cint; @@ -656,7 +852,7 @@ type loop_input: cint; {$IF LIBAVFORMAT_VERSION >= 50006000} // 50.6.0 - (** Decoding: size of data to probe; encoding: unused. *) + (** decoding: size of data to probe; encoding: unused. *) probesize: cuint; {$IFEND} @@ -696,8 +892,8 @@ type {$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0 (** - * Maximum amount of memory in bytes to use per stream for the index. - * If the needed index exceeds this size, entries will be discarded as + * Maximum amount of memory in bytes to use for the index of each stream. + * If the index exceeds this size, entries will be discarded as * needed to maintain a smaller size. This can lead to slower or less * accurate seeking (depends on demuxer). * Demuxers for which a full in-memory index is mandatory will ignore @@ -740,6 +936,19 @@ type packet_buffer_end: PAVPacketList; {$IFEND} + + {$IF LIBAVFORMAT_VERSION >= 52024001} // 52.24.1 + metadata: PAVMetadata; + {$IFEND} + + {$IF LIBAVFORMAT_VERSION >= 52035000} // 52.35.0 + (** + * Remaining size available for raw_packet_buffer, in bytes. + * NOT PART OF PUBLIC API + *) + raw_packet_buffer_remaining_size: cint; + {$IFEND} + end; (** @@ -750,14 +959,19 @@ type *) TAVProgram = record id : cint; - provider_name : PChar; ///< network name for DVB streams - name : PChar; ///< service name for DVB streams + {$IF LIBAVFORMAT_VERSION < 53000000} // 53.00.0 + provider_name : PAnsiChar; ///< network name for DVB streams + name : PAnsiChar; ///< service name for DVB streams + {$IFEND} flags : cint; discard : TAVDiscard; ///< selects which program to discard and which to feed to the caller {$IF LIBAVFORMAT_VERSION >= 51016000} // 51.16.0 stream_index : PCardinal; nb_stream_indexes : PCardinal; {$IFEND} + {$IF LIBAVFORMAT_VERSION >= 52024001} // 52.24.1 + metadata: PAVMetadata; + {$IFEND} end; TAVPacketList = record @@ -779,8 +993,8 @@ type end; {deprecated} TAVImageFormat = record - name: pchar; - extensions: pchar; + name: PAnsiChar; + extensions: PAnsiChar; (* tell if a given file has a chance of being parsing by this format *) img_probe: function (d: PAVProbeData): cint; cdecl; (* read a whole image. 'alloc_cb' is called when the image size is @@ -801,10 +1015,10 @@ procedure av_register_image_format(img_fmt: PAVImageFormat); function av_probe_image_format(pd: PAVProbeData): PAVImageFormat; cdecl; external av__format; deprecated; -function guess_image_format(filename: pchar): PAVImageFormat; +function guess_image_format(filename: PAnsiChar): PAVImageFormat; cdecl; external av__format; deprecated; -function av_read_image(pb: PByteIOContext; filename: pchar; +function av_read_image(pb: PByteIOContext; filename: PAnsiChar; fmt: PAVImageFormat; alloc_cb: pointer; opaque: pointer): cint; cdecl; external av__format; deprecated; @@ -822,17 +1036,27 @@ var {$IFEND} {$IF LIBAVFORMAT_VERSION >= 52003000} // 52.3.0 +(** + * If f is NULL, returns the first registered input format, + * if f is non-NULL, returns the next registered input format after f + * or NULL if f is the last one. + *) function av_iformat_next(f: PAVInputFormat): PAVInputFormat; cdecl; external av__format; +(** + * If f is NULL, returns the first registered output format, + * if f is non-NULL, returns the next registered input format after f + * or NULL if f is the last one. + *) function av_oformat_next(f: PAVOutputFormat): PAVOutputFormat; cdecl; external av__format; {$IFEND} -function av_guess_image2_codec(filename: {const} PChar): TCodecID; +function av_guess_image2_codec(filename: {const} PAnsiChar): TCodecID; cdecl; external av__format; -(* XXX: use automatic init with either ELF sections or C file parser *) -(* modules *) +(* XXX: Use automatic init with either ELF sections or C file parser *) +(* modules. *) (* utils.c *) procedure av_register_input_format(format: PAVInputFormat); @@ -841,26 +1065,26 @@ procedure av_register_input_format(format: PAVInputFormat); procedure av_register_output_format(format: PAVOutputFormat); cdecl; external av__format; -function guess_stream_format(short_name: pchar; - filename: pchar; - mime_type: pchar): PAVOutputFormat; +function guess_stream_format(short_name: PAnsiChar; + filename: PAnsiChar; + mime_type: PAnsiChar): PAVOutputFormat; cdecl; external av__format; -function guess_format(short_name: pchar; - filename: pchar; - mime_type: pchar): PAVOutputFormat; +function guess_format(short_name: PAnsiChar; + filename: PAnsiChar; + mime_type: PAnsiChar): PAVOutputFormat; cdecl; external av__format; (** * Guesses the codec ID based upon muxer and filename. *) -function av_guess_codec(fmt: PAVOutputFormat; short_name: pchar; - filename: pchar; mime_type: pchar; +function av_guess_codec(fmt: PAVOutputFormat; short_name: PAnsiChar; + filename: PAnsiChar; mime_type: PAnsiChar; type_: TCodecType): TCodecID; cdecl; external av__format; (** - * Send a nice hexadecimal dump of a buffer to the specified file stream. + * Sends a nice hexadecimal dump of a buffer to the specified file stream. * * @param f The file stream pointer where the dump should be sent to. * @param buf buffer @@ -868,12 +1092,12 @@ function av_guess_codec(fmt: PAVOutputFormat; short_name: pchar; * * @see av_hex_dump_log, av_pkt_dump, av_pkt_dump_log *) -procedure av_hex_dump(f: PAVFile; buf: pchar; size: cint); +procedure av_hex_dump(f: PAVFile; buf: PByteArray; size: cint); cdecl; external av__format; {$IF LIBAVFORMAT_VERSION >= 51011000} // 51.11.0 (** - * 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. @@ -884,12 +1108,12 @@ procedure av_hex_dump(f: PAVFile; buf: pchar; size: cint); * * @see av_hex_dump, av_pkt_dump, av_pkt_dump_log *) -procedure av_hex_dump_log(avcl: Pointer; level: cint; buf: PChar; size: cint); +procedure av_hex_dump_log(avcl: Pointer; level: cint; buf: PByteArray; size: cint); cdecl; external av__format; {$IFEND} (** - * Send a nice dump of a packet to the specified file stream. + * Sends a nice dump of a packet to the specified file stream. * * @param f The file stream pointer where the dump should be sent to. * @param pkt packet to dump @@ -900,7 +1124,7 @@ procedure av_pkt_dump(f: PAVFile; pkt: PAVPacket; dump_payload: cint); {$IF LIBAVFORMAT_VERSION >= 51011000} // 51.11.0 (** - * 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. @@ -913,6 +1137,15 @@ procedure av_pkt_dump_log(avcl: Pointer; level: cint; pkt: PAVPacket; dump_paylo cdecl; external av__format; {$IFEND} +(** + * 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. + * + * @see av_register_input_format() + * @see av_register_output_format() + * @see av_register_protocol() + *) procedure av_register_all(); cdecl; external av__format; @@ -929,11 +1162,11 @@ function av_codec_get_tag(var tags: PAVCodecTag; id: TCodecID): cuint; (** * Finds AVInputFormat based on the short name of the input format. *) -function av_find_input_format(short_name: pchar): PAVInputFormat; +function av_find_input_format(short_name: PAnsiChar): PAVInputFormat; cdecl; external av__format; (** - * Guess file format. + * Guesses file format. * * @param is_opened Whether the file is already opened; determines whether * demuxers with or without AVFMT_NOFILE are probed. @@ -945,13 +1178,13 @@ function av_probe_input_format(pd: PAVProbeData; is_opened: cint): PAVInputForma * Allocates all the structures needed to read an input stream. * This does not open the needed codecs for decoding the stream[s]. *) -function av_open_input_stream(ic_ptr: PAVFormatContext; - pb: PByteIOContext; filename: pchar; +function av_open_input_stream(var ic_ptr: PAVFormatContext; + pb: PByteIOContext; filename: PAnsiChar; fmt: PAVInputFormat; ap: PAVFormatParameters): cint; cdecl; external av__format; (** - * 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. @@ -962,23 +1195,33 @@ function av_open_input_stream(ic_ptr: PAVFormatContext; * (NULL if default). * @return 0 if OK, AVERROR_xxx otherwise *) -function av_open_input_file(var ic_ptr: PAVFormatContext; filename: pchar; +function av_open_input_file(var ic_ptr: PAVFormatContext; filename: PAnsiChar; fmt: PAVInputFormat; buf_size: cint; ap: PAVFormatParameters): cint; cdecl; external av__format; +{$IF LIBAVFORMAT_VERSION >= 52026000} // 52.26.0 (** - * Allocate an AVFormatContext. + * Allocates an AVFormatContext. * Can be freed with av_free() but do not forget to free everything you * explicitly allocated as well! *) +function avformat_alloc_context(): PAVFormatContext; + cdecl; external av__format; +{$ELSE} + {$IF LIBAVFORMAT_VERSION_MAJOR < 53} +(** + * @deprecated Use avformat_alloc_context() instead. + *) function av_alloc_format_context(): PAVFormatContext; cdecl; external av__format; + {$IFEND} +{$IFEND} (** - * 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 frame rate in case of MPEG-2 repeat + * 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. @@ -992,7 +1235,7 @@ function av_find_stream_info(ic: PAVFormatContext): cint; cdecl; external av__format; (** - * 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. @@ -1005,7 +1248,7 @@ function av_read_packet(s: PAVFormatContext; var pkt: TAVPacket): cint; cdecl; external av__format; (** - * 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 @@ -1016,7 +1259,7 @@ function av_read_packet(s: PAVFormatContext; var pkt: TAVPacket): cint; * then it contains one frame. * * pkt->pts, pkt->dts and pkt->duration are always set to correct - * values in AVStream.timebase units (and guessed if the format cannot + * values in AVStream.time_base units (and guessed if the format cannot * provide them). pkt->pts can be AV_NOPTS_VALUE if the video format * has B-frames, so it is better to rely on pkt->dts if you do not * decompress the payload. @@ -1027,7 +1270,7 @@ function av_read_frame(s: PAVFormatContext; var pkt: TAVPacket): cint; cdecl; external av__format; (** - * Seek to the key frame 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 @@ -1041,15 +1284,51 @@ function av_seek_frame(s: PAVFormatContext; stream_index: cint; timestamp: cint6 flags: cint): cint; cdecl; external av__format; +{$IF LIBAVFORMAT_VERSION >= 52026000} // 52.26.0 +(** + * Seeks to timestamp ts. + * Seeking will be done so that the point from which all active streams + * can be presented successfully will be closest to ts and within min/max_ts. + * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. + * + * If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in byte and + * are the file position (this may not be supported by all demuxers). + * If flags contain AVSEEK_FLAG_FRAME then all timestamps are in frames + * in the stream with stream_index (this may not be supported by all demuxers). + * Otherwise all timestamps are in units of the stream selected by stream_index + * or if stream_index is -1, in AV_TIME_BASE units. + * If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as + * keyframes (this may not be supported by all demuxers). + * + * @param stream_index index of the stream which is used as time base reference. + * @param min_ts smallest acceptable timestamp + * @param ts target timestamp + * @param max_ts largest acceptable timestamp + * @param flags flags + * @returns >=0 on success, error code otherwise + * + * @NOTE This is part of the new seek API which is still under construction. + * Thus do not use this yet. It may change at any time, do not expect + * ABI compatibility yet! + *) +function avformat_seek_file(s: PAVFormatContext; + stream_index: cint; + min_ts: cint64; + ts: cint64; + max_ts: cint64; + flags: cint): cint; + cdecl; external av__format; +{$IFEND} + (** - * 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. *) function av_read_play(s: PAVFormatContext): cint; cdecl; external av__format; (** - * 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. *) @@ -1058,7 +1337,7 @@ function av_read_pause(s: PAVFormatContext): cint; {$IF LIBAVFORMAT_VERSION >= 52003000} // 52.3.0 (** - * Free a AVFormatContext allocated by av_open_input_stream. + * Frees a AVFormatContext allocated by av_open_input_stream. * @param s context to free *) procedure av_close_input_stream(s: PAVFormatContext); @@ -1066,7 +1345,7 @@ procedure av_close_input_stream(s: PAVFormatContext); {$IFEND} (** - * Close a media file (but not its codecs). + * Closes a media file (but not its codecs). * * @param s media file handle *) @@ -1074,7 +1353,7 @@ procedure av_close_input_file(s: PAVFormatContext); cdecl; external av__format; (** - * 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 @@ -1092,7 +1371,7 @@ function av_new_program(s: PAVFormatContext; id: cint): PAVProgram; {$IF LIBAVFORMAT_VERSION >= 52014000} // 52.14.0 (** - * Add a new chapter. + * Adds a new chapter. * This function is NOT part of the public API * and should ONLY be used by demuxers. * @@ -1105,12 +1384,12 @@ function av_new_program(s: PAVFormatContext; id: cint): PAVProgram; * @return AVChapter or NULL on error *) function ff_new_chapter(s: PAVFormatContext; id: cint; time_base: TAVRational; - start, end_: cint64; title: {const} Pchar): PAVChapter; + start, end_: cint64; title: {const} PAnsiChar): PAVChapter; cdecl; external av__format; {$IFEND} (** - * 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 @@ -1119,13 +1398,20 @@ function ff_new_chapter(s: PAVFormatContext; id: cint; time_base: TAVRational; * @param pts_den denominator to convert to seconds (MPEG: 90000) *) procedure av_set_pts_info(s: PAVStream; pts_wrap_bits: cint; +{$IF LIBAVFORMAT_VERSION < 52036000} // < 52.36.0 pts_num: cint; pts_den: cint); +{$ELSE} + pts_num: cuint; pts_den: cuint); +{$IFEND} cdecl; external av__format; const AVSEEK_FLAG_BACKWARD = 1; ///< seek backward AVSEEK_FLAG_BYTE = 2; ///< seeking based on position in bytes AVSEEK_FLAG_ANY = 4; ///< seek to any frame, even non-keyframes +{$IF LIBAVFORMAT_VERSION >= 52037000} // >= 52.37.0 + AVSEEK_FLAG_FRAME = 8; +{$IFEND} function av_find_default_stream_index(s: PAVFormatContext): cint; cdecl; external av__format; @@ -1144,7 +1430,7 @@ function av_index_search_timestamp(st: PAVStream; timestamp: cint64; flags: cint {$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0 (** * Ensures the index uses less memory than the maximum specified in - * AVFormatContext.max_index_size, by discarding entries if it grows + * AVFormatContext.max_index_size by discarding entries if it grows * too large. * This function is not part of the public API and should only be called * by demuxers. @@ -1154,7 +1440,7 @@ procedure ff_reduce_index(s: PAVFormatContext; stream_index: cint); {$IFEND} (** - * 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 timebase of the given stream @@ -1214,7 +1500,7 @@ function av_set_parameters(s: PAVFormatContext; ap: PAVFormatParameters): cint; cdecl; external av__format; (** - * 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 @@ -1224,7 +1510,7 @@ function av_write_header(s: PAVFormatContext): cint; cdecl; external av__format; (** - * 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 @@ -1242,7 +1528,7 @@ function av_write_frame(s: PAVFormatContext; var pkt: TAVPacket): cint; * Writes 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 + * 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 @@ -1257,10 +1543,10 @@ function av_interleaved_write_frame(s: PAVFormatContext; var pkt: TAVPacket): ci cdecl; external av__format; (** - * 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 calling av_free_packet() + * function, so they cannot be used after it. Note that calling av_free_packet() * on them is still safe. * * @param s media file handle @@ -1275,9 +1561,27 @@ function av_interleave_packet_per_dts(s: PAVFormatContext; _out: PAVPacket; pkt: PAVPacket; flush: cint): cint; cdecl; external av__format; +{$IF LIBAVFORMAT_VERSION >= 52025000} // 52.25.0 (** - * @brief Write the stream trailer to an output media file and - * free the file private data. + * Add packet to AVFormatContext->packet_buffer list, determining its + * interleaved position using compare() function argument. + * + * This function is not part of the public API and should only be called + * by muxers using their own interleave function. + *) +{ +procedure ff_interleave_add_packet(s: PAVFormatContext; + pkt: PAVPacket; + compare: function(para1: PAVFormatContext; + para2: PAVPacket; + para3: PAVPacket): cint); + cdecl; external av__format; +} +{$IFEND} + +(** + * Writes the stream trailer to an output media file and frees the + * file private data. * * May only be called after a successful call to av_write_header. * @@ -1287,7 +1591,7 @@ function av_interleave_packet_per_dts(s: PAVFormatContext; _out: PAVPacket; function av_write_trailer(s: pAVFormatContext): cint; cdecl; external av__format; -procedure dump_format(ic: PAVFormatContext; index: cint; url: pchar; +procedure dump_format(ic: PAVFormatContext; index: cint; url: PAnsiChar; is_output: cint); cdecl; external av__format; @@ -1296,19 +1600,21 @@ procedure dump_format(ic: PAVFormatContext; index: cint; url: pchar; * @deprecated Use av_parse_video_frame_size instead. *) function parse_image_size(width_ptr: PCint; height_ptr: PCint; - str: pchar): cint; + str: PAnsiChar): cint; cdecl; external av__format; deprecated; +{$IF LIBAVFORMAT_VERSION_MAJOR < 53} (** - * Converts frame rate from string to a fraction. + * Converts framerate from a string to a fraction. * @deprecated Use av_parse_video_frame_rate instead. *) function parse_frame_rate(frame_rate: PCint; frame_rate_base: PCint; - arg: pchar): cint; + arg: PByteArray): cint; cdecl; external av__format; deprecated; +{$IFEND} (** - * Parses \p datestr and returns a corresponding number of microseconds. + * Parses datestr and returns a corresponding number of microseconds. * @param datestr String representing a date or a duration. * - If a date the syntax is: * @code @@ -1319,7 +1625,7 @@ function parse_frame_rate(frame_rate: PCint; frame_rate_base: PCint; * If the year-month-day part is not specified it takes the current * year-month-day. * Returns the number of microseconds since 1st of January, 1970 up to - * the time of the parsed date or INT64_MIN if \p datestr cannot be + * the time of the parsed date or INT64_MIN if datestr cannot be * successfully parsed. * - If a duration the syntax is: * @code @@ -1327,13 +1633,13 @@ function parse_frame_rate(frame_rate: PCint; frame_rate_base: PCint; * [-]S+[.m...] * @endcode * Returns the number of microseconds contained in a time interval - * with the specified duration or INT64_MIN if \p datestr cannot be + * with the specified duration or INT64_MIN if datestr cannot be * successfully parsed. - * @param duration Flag which tells how to interpret \p datestr, if - * not zero \p datestr is interpreted as a duration, otherwise as a + * @param duration Flag which tells how to interpret datestr, if + * not zero datestr is interpreted as a duration, otherwise as a * date. *) -function parse_date(datestr: pchar; duration: cint): cint64; +function parse_date(datestr: PAnsiChar; duration: cint): cint64; cdecl; external av__format; (** Gets the current time in microseconds. *) @@ -1347,7 +1653,11 @@ const function ffm_read_write_index(fd: cint): cint64; cdecl; external av__format; +{$IF LIBAVFORMAT_VERSION < 52027000} // 52.27.0 procedure ffm_write_write_index(fd: cint; pos: cint64); +{$ELSE} +function ffm_write_write_index(fd: cint; pos: cint64): cint; +{$IFEND} cdecl; external av__format; procedure ffm_set_write_index(s: PAVFormatContext; pos: cint64; file_size: cint64); @@ -1359,11 +1669,11 @@ procedure ffm_set_write_index(s: PAVFormatContext; pos: cint64; file_size: cint6 * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done. * Return 1 if found. *) -function find_info_tag(arg: pchar; arg_size: cint; tag1: pchar; info: pchar): cint; +function find_info_tag(arg: PAnsiChar; arg_size: cint; tag1: PAnsiChar; info: PAnsiChar): cint; cdecl; external av__format; (** - * Returns in 'buf' the path with '%d' replaced by number. + * Returns in 'buf' the path with '%d' replaced by a number. * * Also handles the '%0nd' format where 'n' is the total number * of digits and '%%'. @@ -1374,20 +1684,20 @@ function find_info_tag(arg: pchar; arg_size: cint; tag1: pchar; info: pchar): ci * @param number frame number * @return 0 if OK, -1 on format error *) -function av_get_frame_filename(buf: pchar; buf_size: cint; - path: pchar; number: cint): cint; +function av_get_frame_filename(buf: PAnsiChar; buf_size: cint; + path: PAnsiChar; number: cint): cint; cdecl; external av__format {$IF LIBAVFORMAT_VERSION <= 50006000} // 50.6.0 name 'get_frame_filename' {$IFEND}; (** - * 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 *) -function av_filename_number_test(filename: pchar): cint; +function av_filename_number_test(filename: PAnsiChar): cint; cdecl; external av__format {$IF LIBAVFORMAT_VERSION <= 50006000} // 50.6.0 name 'filename_number_test' @@ -1395,7 +1705,7 @@ function av_filename_number_test(filename: pchar): cint; {$IF LIBAVFORMAT_VERSION >= 51012002} // 51.12.2 (** - * 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 @@ -1408,7 +1718,7 @@ function av_filename_number_test(filename: pchar): cint; * @param size the size of the buffer * @return 0 if OK, AVERROR_xxx on error *) -function avf_sdp_create(ac: PPAVFormatContext; n_files: cint; buff: PChar; size: cint): cint; +function avf_sdp_create(ac: PPAVFormatContext; n_files: cint; buff: PByteArray; size: cint): cint; cdecl; external av__format; {$IFEND} @@ -1429,10 +1739,12 @@ begin end; {$IFEND} +{$IF LIBAVCODEC_VERSION < 52032000} // < 52.32.0 procedure av_free_packet(pkt: PAVPacket); begin if ((pkt <> nil) and (@pkt^.destruct <> nil)) then pkt^.destruct(pkt); end; +{$IFEND} end. |