diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/ffmpeg/avcodec.pas | 1027 |
1 files changed, 917 insertions, 110 deletions
diff --git a/src/lib/ffmpeg/avcodec.pas b/src/lib/ffmpeg/avcodec.pas index 6039835c..402d6ed5 100644 --- a/src/lib/ffmpeg/avcodec.pas +++ b/src/lib/ffmpeg/avcodec.pas @@ -29,6 +29,11 @@ * Min. version: 51.16.0, revision 6577, Sat Oct 7 15:30:46 2006 UTC * Max. version: 52.11.0, revision 16912, Sun Feb 1 02:00:19 2009 UTC *) +{ + * update to + * Max. version: 52.30.2, Fri Jun 12 21:05:00 2009 UTC + * MiSchi +} unit avcodec; @@ -60,8 +65,8 @@ uses const (* Max. supported version by this header *) LIBAVCODEC_MAX_VERSION_MAJOR = 52; - LIBAVCODEC_MAX_VERSION_MINOR = 11; - LIBAVCODEC_MAX_VERSION_RELEASE = 0; + LIBAVCODEC_MAX_VERSION_MINOR = 30; + LIBAVCODEC_MAX_VERSION_RELEASE = 2; LIBAVCODEC_MAX_VERSION = (LIBAVCODEC_MAX_VERSION_MAJOR * VERSION_MAJOR) + (LIBAVCODEC_MAX_VERSION_MINOR * VERSION_MINOR) + (LIBAVCODEC_MAX_VERSION_RELEASE * VERSION_RELEASE); @@ -85,9 +90,9 @@ const {$IFEND} const - AV_NOPTS_VALUE: cint64 = $8000000000000000; + AV_NOPTS_VALUE: cint64 = $8000000000000000; AV_TIME_BASE = 1000000; - AV_TIME_BASE_Q : TAVRational = (num: 1; den: AV_TIME_BASE); + AV_TIME_BASE_Q: TAVRational = (num: 1; den: AV_TIME_BASE); (** * Identifies the syntax and semantics of the bitstream. @@ -233,6 +238,25 @@ type CODEC_ID_MOTIONPIXELS, CODEC_ID_TGV, CODEC_ID_TGQ, +{$IF LIBAVCODEC_VERSION >= 52012000} // 52.12.0 + CODEC_ID_TQI, +{$IFEND} +{$IF LIBAVCODEC_VERSION >= 52022002} // 52.22.2 + CODEC_ID_AURA, + CODEC_ID_AURA2, +{$IFEND} +{$IF LIBAVCODEC_VERSION >= 52027000} // 52.27.0 + CODEC_ID_V210X, +{$IFEND} +{$IF LIBAVCODEC_VERSION >= 52028000} // 52.28.0 + CODEC_ID_TMV, +{$IFEND} +{$IF LIBAVCODEC_VERSION >= 52029000} // 52.29.0 + CODEC_ID_V210, +{$IFEND} +{$IF LIBAVCODEC_VERSION >= 52030002} // 52.30.2 + CODEC_ID_DPX, +{$IFEND} //* various PCM "codecs" */ CODEC_ID_PCM_S16LE= $10000, @@ -354,6 +378,15 @@ type CODEC_ID_EAC3, CODEC_ID_SIPR, CODEC_ID_MP1, +{$IF LIBAVCODEC_VERSION >= 52020000} // 52.20.0 + CODEC_ID_TWINVQ, +{$IFEND} +{$IF LIBAVCODEC_VERSION >= 52022000} // 52.22.0 + CODEC_ID_TRUEHD, +{$IFEND} +{$IF LIBAVCODEC_VERSION >= 52026000} // 52.26.0 + CODEC_ID_MP4ALS, +{$IFEND} //* subtitle codecs */ CODEC_ID_DVD_SUBTITLE= $17000, @@ -369,7 +402,7 @@ type CODEC_ID_PROBE= $19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it CODEC_ID_MPEG2TS= $20000, {*< _FAKE_ codec to indicate a raw MPEG-2 TS - * stream (only used by libavformat) *} + * stream (only used by libavformat) *} __CODEC_ID_4BYTE = $FFFFF // ensure 4-byte enum ); @@ -407,7 +440,7 @@ type _TSampleFormatArray = array [0 .. MaxInt div SizeOf(TSampleFormat)-1] of TSampleFormat; PSampleFormatArray = ^_TSampleFormatArray; -const +const {* Audio channel masks *} CH_FRONT_LEFT = $00000001; CH_FRONT_RIGHT = $00000002; @@ -434,13 +467,28 @@ const CH_LAYOUT_MONO = (CH_FRONT_CENTER); CH_LAYOUT_STEREO = (CH_FRONT_LEFT or CH_FRONT_RIGHT); CH_LAYOUT_SURROUND = (CH_LAYOUT_STEREO or CH_FRONT_CENTER); +{$IF LIBAVCODEC_VERSION >= 52027000} // 52.27.0 + CH_LAYOUT_2_1 (CH_LAYOUT_STEREO or CH_BACK_CENTER); + CH_LAYOUT_4POINT0 (CH_LAYOUT_SURROUND or CH_BACK_CENTER); + CH_LAYOUT_2_2 (CH_LAYOUT_STEREO or CH_SIDE_LEFT or CH_SIDE_RIGHT); +{$IFEND} CH_LAYOUT_QUAD = (CH_LAYOUT_STEREO or CH_BACK_LEFT or CH_BACK_RIGHT); CH_LAYOUT_5POINT0 = (CH_LAYOUT_SURROUND or CH_SIDE_LEFT or CH_SIDE_RIGHT); CH_LAYOUT_5POINT1 = (CH_LAYOUT_5POINT0 or CH_LOW_FREQUENCY); +{$IF LIBAVCODEC_VERSION >= 52025000} // 52.25.0 + CH_LAYOUT_5POINT0_BACK = (CH_LAYOUT_SURROUND or CH_BACK_LEFT or + CH_BACK_RIGHT); + CH_LAYOUT_5POINT1_BACK = (CH_LAYOUT_5POINT0_BACK or CH_LOW_FREQUENCY); +{$IFEND} CH_LAYOUT_7POINT1 = (CH_LAYOUT_5POINT1 or CH_BACK_LEFT or CH_BACK_RIGHT); +{$IF LIBAVCODEC_VERSION < 52025000} // 52.25.0 CH_LAYOUT_7POINT1_WIDE = (CH_LAYOUT_SURROUND or CH_LOW_FREQUENCY or - CH_BACK_LEFT or CH_BACK_RIGHT or - CH_FRONT_LEFT_OF_CENTER or CH_FRONT_RIGHT_OF_CENTER); + CH_BACK_LEFT or CH_BACK_RIGHT or +{$ELSE} + CH_LAYOUT_7POINT1_WIDE = (CH_LAYOUT_5POINT1_BACK or +{$IFEND} + CH_FRONT_LEFT_OF_CENTER or + CH_FRONT_RIGHT_OF_CENTER); CH_LAYOUT_STEREO_DOWNMIX = (CH_STEREO_LEFT or CH_STEREO_RIGHT); @@ -482,20 +530,76 @@ type TAVDiscard = ( {* We leave some space between them for extensions (drop some - * keyframes for intra-only or drop just some bidir frames). *} - AVDISCARD_NONE =-16, ///< discard nothing - AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi - AVDISCARD_NONREF = 8, ///< discard all non reference - AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames - AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes - AVDISCARD_ALL = 48 ///< discard all + * keyframes for intra-only or drop just some bidir frames). + *} + AVDISCARD_NONE = -16, ///< discard nothing + AVDISCARD_DEFAULT = 0, ///< discard useless packets like 0 size packets in avi + AVDISCARD_NONREF = 8, ///< discard all non reference + AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames + AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes + AVDISCARD_ALL = 48 ///< discard all + ); + +{$IF LIBAVCODEC_VERSION < 52028000} // < 52.28.0 + TAVColorPrimaries = ( + AVCOL_PRI_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B + AVCOL_PRI_UNSPECIFIED = 2, + AVCOL_PRI_BT470M = 4, + AVCOL_PRI_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM + AVCOL_PRI_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC + AVCOL_PRI_SMPTE240M = 7, ///< functionally identical to above + AVCOL_PRI_FILM = 8, + AVCOL_PRI_NB ///< Not part of ABI + ); + + TAVColorTransferCharacteristic = ( + AVCOL_TRC_BT709 = 1, ///< also ITU-R BT1361 + AVCOL_TRC_UNSPECIFIED = 2, + AVCOL_TRC_GAMMA22 = 4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM + AVCOL_TRC_GAMMA28 = 5, ///< also ITU-R BT470BG + AVCOL_TRC_NB ///< Not part of ABI + ); + + TAVColorSpace = ( + AVCOL_SPC_RGB = 0, + AVCOL_SPC_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B + AVCOL_SPC_UNSPECIFIED = 2, + AVCOL_SPC_FCC = 4, + AVCOL_SPC_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 + AVCOL_SPC_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above + AVCOL_SPC_SMPTE240M = 7, + AVCOL_SPC_NB ///< Not part of ABI ); + TAVColorRange = ( + AVCOL_RANGE_UNSPECIFIED = 0, + AVCOL_RANGE_MPEG = 1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges + AVCOL_RANGE_JPEG = 2, ///< the normal 2^n-1 "JPEG" YUV ranges + AVCOL_RANGE_NB ///< Not part of ABI + ); + +(** + * X X 3 4 X X are luma samples, + * 1 2 1-6 are possible chroma positions + * X X 5 6 X 0 is undefined/unknown position + *) + TAVChromaLocation = ( + AVCHROMA_LOC_UNSPECIFIED = 0, + AVCHROMA_LOC_LEFT = 1, ///< mpeg2/4, h264 default + AVCHROMA_LOC_CENTER = 2, ///< mpeg1, jpeg, h263 + AVCHROMA_LOC_TOPLEFT = 3, ///< DV + AVCHROMA_LOC_TOP = 4, + AVCHROMA_LOC_BOTTOMLEFT = 5, + AVCHROMA_LOC_BOTTOM = 6, + AVCHROMA_LOC_NB ///< Not part of ABI + ); +{$IFEND} + PRcOverride = ^TRcOverride; TRcOverride = record {16} - start_frame: cint; - end_frame: cint; - qscale: cint; // if this is 0 then quality_factor will be used instead + start_frame: cint; + end_frame: cint; + qscale: cint; // if this is 0 then quality_factor will be used instead quality_factor: cfloat; end; @@ -655,8 +759,8 @@ type end; const - FF_QSCALE_TYPE_MPEG1 = 0; - FF_QSCALE_TYPE_MPEG2 = 1; + FF_QSCALE_TYPE_MPEG1 = 0; + FF_QSCALE_TYPE_MPEG2 = 1; FF_QSCALE_TYPE_H264 = 2; FF_BUFFER_TYPE_INTERNAL = 1; @@ -724,7 +828,7 @@ type * - decoding: Set by libavcodec. *) pts: cint64; - (**\ + (** * picture number in bitstream order * - encoding: set by * - decoding: Set by libavcodec. @@ -753,6 +857,7 @@ type * is this picture used as reference * The values for this are the same as the MpegEncContext.picture_structure * variable, that is 1->top field, 2->bottom field, 3->frame/both fields. + * Set to 4 for delayed, non-reference frames. * - encoding: unused * - decoding: Set by libavcodec. (before get_buffer() call)). *) @@ -886,6 +991,18 @@ type *) reordered_opaque: cint64; {$IFEND} + + {$IF LIBAVCODEC_VERSION = 52021000} // 52.21.0 + (** + * hardware accelerator private data (FFmpeg allocated) + * - encoding: unused + * - decoding: Set by libavcodec + *) + hwaccel_data_private: pointer; + {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52022000} // 52.22.0 + hwaccel_picture_private: pointer; + {$IFEND} {$IF LIBAVCODEC_VERSION >= 51070000} // 51.70.0 (** @@ -928,6 +1045,73 @@ type *) rc_min_vbv_overflow_use: cfloat; {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52018000} // < 52.18.0 + (** + * Hardware accelerator in use + * - encoding: unused. + * - decoding: Set by libavcodec + *) + hwaccel: PAVHWAccel; + {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52020000} // < 52.20.0 + (** + * For some codecs, the time base is closer to the field rate than the frame rate. + * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration + * if no telecine is used ... + * + * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2. + *) + ticks_per_frame: cint; + {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52021000} // < 52.21.0 + (** + * Hardware accelerator context. + * For some hardware accelerators, a global context needs to be + * provided by the user. In that case, this holds display-dependent + * data FFmpeg cannot instantiate itself. Please refer to the + * FFmpeg HW accelerator documentation to know how to fill this + * is. e.g. for VA API, this is a struct vaapi_context. + * - encoding: unused + * - decoding: Set by user + *) + hwaccel_context: pointer; + {$IFEND} + {$IF LIBAVCODEC_VERSION < 52028000} // < 52.28.0 + (** + * Chromaticity coordinates of the source primaries. + * - encoding: Set by user + * - decoding: Set by libavcodec + *) + color_primaries: TAVColorPrimaries; + + (** + * Color Transfer Characteristic. + * - encoding: Set by user + * - decoding: Set by libavcodec + *) + color_trc: TAVColorTransferCharacteristic; + + (** + * YUV colorspace type. + * - encoding: Set by user + * - decoding: Set by libavcodec + *) + colorspace: TAVColorSpace; + + (** + * MPEG vs JPEG YUV range. + * - encoding: Set by user + * - decoding: Set by libavcodec + *) + color_range: TAVColorRange; + + (** + * This defines the location of chroma samples. + * - encoding: Set by user + * - decoding: Set by libavcodec + *) + chroma_sample_location: TAVChromaLocation; + {$IFEND} end; const @@ -1007,12 +1191,21 @@ const (* lower 16 bits - CPU features *) FF_MM_MMX = $0001; ///< standard MMX FF_MM_3DNOW = $0004; ///< AMD 3DNOW + {$IF LIBAVCODEC_MAX_VERSION_MAJOR < 53} FF_MM_MMXEXT = $0002; ///< SSE integer functions or AMD MMX ext + {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52024000} // >= 52.24.0 + FF_MM_MMX2 = $0002; ///< SSE integer functions or AMD MMX ext + {$IFEND} FF_MM_SSE = $0008; ///< SSE functions FF_MM_SSE2 = $0010; ///< PIV SSE2 functions FF_MM_3DNOWEXT = $0020; ///< AMD 3DNowExt FF_MM_SSE3 = $0040; ///< Prescott SSE3 functions FF_MM_SSSE3 = $0080; ///< Conroe SSSE3 functions + {$IF LIBAVCODEC_VERSION >= 52022003} // >= 52.22.3 + FF_MM_SSE4 = $0100; ///< Penryn SSE4.1 functions + FF_MM_SSE42 = $0200; ///< Nehalem SSE4.2 functions + {$IFEND} FF_MM_IWMMXT = $0100; ///< XScale IWMMXT FF_MM_ALTIVEC = $0001; ///< standard AltiVec @@ -1114,6 +1307,7 @@ const AVPALETTE_SIZE = 1024; AVPALETTE_COUNT = 256; +{$IF LIBAVCODEC_MAX_VERSION_MAJOR < 53} type (** * AVPaletteControl @@ -1135,6 +1329,69 @@ type * data is probably 6 bits in size and needs to be scaled *) palette: array [0..AVPALETTE_COUNT - 1] of cuint; end; {deprecated;} +{$IFEND} + +{$IF LIBAVCODEC_VERSION >= 52023000} // >= 52.23.0 +type + PAVPacket = ^TAVPacket; + TAVPacket = record +(* + * Presentation timestamp in AVStream->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 cannot happen before + * decompression, unless one wants to view hex dumps. Some formats misuse + * 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 timestamp in AVStream->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: PByteArray; + size: cint; + stream_index: cint; + flags: cint; +(* + * Duration of this packet in AVStream->time_base units, 0 if unknown. + * Equals next_pts - this_pts in presentation order. + *) + duration: cint; + destruct: procedure (para1: PAVPacket); cdecl; + priv: pointer; + pos: cint64; // byte position in stream, -1 if unknown + +(* + * Time difference in AVStream->time_base units from the pts of this + * packet to the point at which the output from the decoder has converged + * independent from the availability of previous frames. That is, the + * frames are virtually identical no matter if decoding started from + * the very first frame or from this keyframe. + * Is AV_NOPTS_VALUE if unknown. + * This field is not the display duration of the current packet. + * + * The purpose of this field is to allow seeking in streams that have no + * keyframes in the conventional sense. It corresponds to the + * recovery point SEI in H.264 and match_time_delta in NUT. It is also + * essential for some types of subtitle streams to ensure that all + * subtitles are correctly displayed after seeking. + *) + convergence_duration: cint64; + end; + +const + {$IF LIBAVCODEC_VERSION < 52030002} // >= 52.30.2 + PKT_FLAG_KEY = $0001; + {$ELSE} + AV_PKT_FLAG_KEY = $0001; + {$IF LIBAVCODEC_VERSION_MAJOR < 53} + PKT_FLAG_KEY = AV_PKT_FLAG_KEY; + {$IFEND} + {$IFEND} +{$IFEND} type PAVClass = ^TAVClass; {const} @@ -1273,6 +1530,13 @@ type * decoder to draw a horizontal band. It improves cache usage. Not * all codecs can do that. You must check the codec capabilities * beforehand. + * The function is also used by hardware acceleration APIs. + * It is called at least once during frame decoding to pass + * the data needed for hardware render. + * In that mode instead of pixel data, AVFrame points to + * a structure specific to the acceleration API. The application + * reads the structure and can change some fields to indicate progress + * or mark state. * - encoding: unused * - decoding: Set by user. * @param height the height of the slice @@ -1301,7 +1565,9 @@ type *) frame_size: cint; frame_number: cint; ///< audio or video frame number +{$IF LIBAVCODEC_MAX_VERSION_MAJOR < 53} real_pict_num: cint; ///< returns the real picture number of previous encoded frame +{$IFEND} (** * Number of frames the decoded output will be delayed relative to @@ -1490,6 +1756,9 @@ type * If pic.reference is set then the frame will be read later by libavcodec. * avcodec_align_dimensions() should be used to find the required width and * height, as they normally need to be rounded up to the next multiple of 16. + * if CODEC_CAP_DR1 is not set then get_buffer() must call + * avcodec_default_get_buffer() instead of providing buffers allocated by + * some other means. * - encoding: unused * - decoding: Set by libavcodec., user can override. *) @@ -1505,7 +1774,8 @@ type release_buffer: procedure (c: PAVCodecContext; pic: PAVFrame); cdecl; (** - * If 1 the stream has a 1 frame delay during decoding. + * Size of the frame reordering buffer in the decoder. + * For MPEG-2 it is 1 IPB or 0 low delay IP. * - encoding: Set by libavcodec. * - decoding: Set by libavcodec. *) @@ -2012,6 +2282,9 @@ type * libavcodec will pass previous buffer in pic, function should return * same buffer or new buffer with old frame "painted" into it. * If pic.data[0] == NULL must behave like get_buffer(). + * if CODEC_CAP_DR1 is not set then reget_buffer() must call + * avcodec_default_reget_buffer() instead of providing buffers allocated by + * some other means. * - encoding: unused * - decoding: Set by libavcodec., user can override *) @@ -2465,6 +2738,15 @@ type *) reordered_opaque: cint64; {$IFEND} + + {$IF LIBAVCODEC_VERSION >= 52028000} // 52.28.0 + (** + * This defines the location of chroma samples. + * - encoding: Set by user + * - decoding: Set by libavcodec + *) + chroma_sample_location: TAVChromaLocation; + {$IFEND} end; (** @@ -2479,7 +2761,11 @@ type encode: function (avctx: PAVCodecContext; buf: PByteArray; buf_size: cint; data: pointer): cint; cdecl; close: function (avctx: PAVCodecContext): cint; cdecl; decode: function (avctx: PAVCodecContext; outdata: pointer; var outdata_size: cint; + {$IF LIBAVCODEC_VERSION < 52025000} // 52.25.0 buf: {const} PByteArray; buf_size: cint): cint; cdecl; + {$ELSE} + avpkt: PAVPacket): cint; cdecl; + {$IFEND} (** * Codec capabilities. * see CODEC_CAP_* @@ -2495,8 +2781,8 @@ type pix_fmts: {const} PAVPixelFormat; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1 {$IF LIBAVCODEC_VERSION >= 51055000} // 51.55.0 (** - * Descriptive name for the codec, meant to be more human readable than \p name. - * You \e should use the NULL_IF_CONFIG_SMALL() macro to define it. + * Descriptive name for the codec, meant to be more human readable than name. + * You should use the NULL_IF_CONFIG_SMALL() macro to define it. *) long_name: {const} PAnsiChar; {$IFEND} @@ -2511,6 +2797,107 @@ type {$IFEND} end; +{$IF LIBAVCODEC_VERSION >= 52018000} // 52.18.0 +type +(** + * AVHWAccel. + *) + PAVHWAccel = ^TAVHWAccel; + TAVHWAccel = record + (** + * Name of the hardware accelerated codec. + * The name is globally unique among encoders and among decoders (but an + * encoder and a decoder can share the same name). + *) + name: PAnsiChar; + + (** + * Type of codec implemented by the hardware accelerator. + * + * See CODEC_TYPE_xxx + *) + type_: TCodecType; + + (** + * Codec implemented by the hardware accelerator. + * + * See CODEC_ID_xxx + *) + id: TCodecID; + + (** + * Supported pixel format. + * + * Only hardware accelerated formats are supported here. + *) + pix_fmt: {const} PAVPixelFormat; + + (** + * Hardware accelerated codec capabilities. + * see FF_HWACCEL_CODEC_CAP_* + *) + capabilities: cint; + + next: PAVCodec; + + (** + * Called at the beginning of each frame or field picture. + * + * Meaningful frame information (codec specific) is guaranteed to + * be parsed at this point. This function is mandatory. + * + * Note that buf can be NULL along with buf_size set to 0. + * Otherwise, this means the whole frame is available at this point. + * + * @param avctx the codec context + * @param buf the frame data buffer base + * @param buf_size the size of the frame in bytes + * @return zero if successful, a negative value otherwise + *) + start_frame: function (avctx: PAVCodecContext; + buf: PByteArray; + buf_size: cint): cint; cdecl; + + (** + * Callback for each slice. + * + * Meaningful slice information (codec specific) is guaranteed to + * be parsed at this point. This function is mandatory. + * + * @param avctx the codec context + * @param buf the slice data buffer base + * @param buf_size the size of the slice in bytes + * @return zero if successful, a negative value otherwise + *) + decode_slice: function (avctx: PAVCodecContext; + buf: PByteArray; + buf_size: cint): cint; cdecl; + + (** + * Called at the end of each frame or field picture. + * + * The whole picture is parsed at this point and can now be sent + * to the hardware accelerator. This function is mandatory. + * + * @param avctx the codec context + * @return zero if successful, a negative value otherwise + *) + end_frame: function (avctx: PAVCodecContext): cint; cdecl; + +{$IF LIBAVCODEC_VERSION >= 52021000} // >= 52.21.0 + (** + * Size of HW accelerator private data. + * + * Private data is allocated with av_mallocz() before + * AVCodecContext.get_buffer() and deallocated after + * AVCodecContext.release_buffer(). + *) + priv_data_size: cint; +{$IFEND} + + end; +{$IFEND} + (** * four components are given, that's all. * the last component is alpha @@ -2594,6 +2981,66 @@ type {$IFEND} end; +{$IF LIBAVCODEC_VERSION >= 52025000} // 52.25.0 +{ packet functions } + +(** + * @deprecated use NULL instead + *) +procedure av_destruct_packet_nofree(pkt: PAVPacket); + cdecl; external av__codec; + +(* + * Default packet destructor. + *) +procedure av_destruct_packet(pkt: PAVPacket); + cdecl; external av__codec; + +(* + * Initialize optional fields of a packet with default values. + * + * @param pkt packet + *) +procedure av_init_packet(pkt: PAVPacket); + cdecl; external av__codec; + +(* + * Allocate the payload of a packet and initialize its fields with + * default values. + * + * @param pkt packet + * @param size wanted payload size + * @return 0 if OK, AVERROR_xxx otherwise + *) +function av_new_packet(pkt: PAVPacket; size: cint): cint; + cdecl; external av__codec; + +(* + * Reduce packet size, correctly zeroing padding + * + * @param pkt packet + * @param size new size + *) +procedure av_shrink_packet(pkt: PAVPacket; size: cint); + cdecl; external av__codec; + +(* + * @warning This is a hack - the packet memory allocation stuff is broken. The + * packet is allocated if it was not really allocated. + *) +function av_dup_packet(pkt: PAVPacket): cint; + cdecl; external av__codec; + +(* + * Free a packet. + * + * @param pkt packet to free + *) +procedure av_free_packet(pkt: PAVPacket); +{$IF LIBAVCODEC_VERSION >=52028000} // 52.28.0 + cdecl; external av__codec; +{$IFEND} +{$IFEND} (* resample.c *) @@ -2611,7 +3058,15 @@ function audio_resample (s: PReSampleContext; output: PSmallint; input: PSmallin procedure audio_resample_close (s: PReSampleContext); cdecl; external av__codec; - +(** + * Initializes an audio resampler. + * Note, if either rate is not an integer then simply scale both rates up so they are. + * @param filter_length length of each FIR filter in the filterbank relative to the cutoff freq + * @param log2_phase_count log2 of the number of entries in the polyphase filterbank + * @param linear If 1 then the used FIR filter will be linearly interpolated + between the 2 closest, if 0 the closest will be used + * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate + *) function av_resample_init (out_rate: cint; in_rate: cint; filter_length: cint; log2_phase_count: cint; linear: cint; cutoff: cdouble): PAVResampleContext; cdecl; external av__codec; @@ -2627,7 +3082,6 @@ procedure av_resample_compensate (c: PAVResampleContext; sample_delta: cint; procedure av_resample_close (c: PAVResampleContext); cdecl; external av__codec; - {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 (* YUV420 format is assumed ! *) @@ -2660,7 +3114,6 @@ procedure img_resample (s: PImgReSampleContext; output: PAVPicture; input: {cons *) procedure img_resample_close (s: PImgReSampleContext); cdecl; external av__codec; deprecated; - {$IFEND} (** @@ -2692,6 +3145,7 @@ procedure avpicture_free (picture: PAVPicture); * If a planar format is specified, several pointers will be set pointing to * the different picture planes and the line sizes of the different planes * will be stored in the lines_sizes array. + * Call with ptr == NULL to get the required size for the ptr buffer. * * @param picture AVPicture whose fields are to be filled in * @param ptr Buffer which will contain or contains the actual image data @@ -2712,11 +3166,14 @@ function avpicture_layout (src: {const} PAVPicture; pix_fmt: TAVPixelFormat; (** * Calculate the size in bytes that a picture of the given width and height * would occupy if stored in the given picture format. + * Note that this returns the size of a compact representation as generated + * by avpicture_layout, which can be smaller than the size required for e.g. + * avpicture_fill. * * @param pix_fmt the given picture format * @param width the width of the image * @param height the height of the image - * @return Image data size in bytes + * @return Image data size in bytes or -1 on error (e.g. too large dimensions). *) function avpicture_get_size (pix_fmt: TAVPixelFormat; width: cint; height: cint): cint; cdecl; external av__codec; @@ -2730,6 +3187,17 @@ function avcodec_get_pix_fmt_name(pix_fmt: TAVPixelFormat): PAnsiChar; procedure avcodec_set_dimensions(s: PAVCodecContext; width: cint; height: cint); cdecl; external av__codec; +(** + * Returns the pixel format corresponding to the name name. + * + * If there is no pixel format with name name, then looks for a + * pixel format with the name corresponding to the native endian + * format of name. + * For example in a little-endian system, first looks for "gray16", + * then for "gray16le". + * + * Finally if no pixel format has been found, returns PIX_FMT_NONE. + *) function avcodec_get_pix_fmt(name: {const} PAnsiChar): TAVPixelFormat; cdecl; external av__codec; @@ -2773,7 +3241,7 @@ function avcodec_get_pix_fmt_loss (dst_pix_fmt: TAVPixelFormat; src_pix_fmt: TAV * some formats to other formats. avcodec_find_best_pix_fmt() searches which of * the given pixel formats should be used to suffer the least amount of loss. * The pixel formats from which it chooses one, are determined by the - * \p pix_fmt_mask parameter. + * pix_fmt_mask parameter. * * @code * src_pix_fmt = PIX_FMT_YUV420P; @@ -2791,10 +3259,14 @@ function avcodec_get_pix_fmt_loss (dst_pix_fmt: TAVPixelFormat; src_pix_fmt: TAV function avcodec_find_best_pix_fmt(pix_fmt_mask: cint64; src_pix_fmt: TAVPixelFormat; has_alpha: cint; loss_ptr: PCint): cint; cdecl; external av__codec; -{$ELSE} +{$ELSEIF LIBAVCODEC_VERSION < 52022001} function avcodec_find_best_pix_fmt(pix_fmt_mask: cint; src_pix_fmt: TAVPixelFormat; has_alpha: cint; loss_ptr: PCint): cint; cdecl; external av__codec; +{$ELSE} +function avcodec_find_best_pix_fmt(pix_fmt_mask: cint; src_pix_fmt: TAVPixelFormat; + has_alpha: cint; loss_ptr: PCint): TAVPixelFormat; + cdecl; external av__codec; {$IFEND} {$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0 @@ -2808,8 +3280,13 @@ function avcodec_find_best_pix_fmt(pix_fmt_mask: cint; src_pix_fmt: TAVPixelForm * a negative value to print the corresponding header. * Meaningful values for obtaining a pixel format info vary from 0 to PIX_FMT_NB -1. *) +{$IF LIBAVCODEC_VERSION < 52022001} // 52.22.1 procedure avcodec_pix_fmt_string (buf: PAnsiChar; buf_size: cint; pix_fmt: cint); cdecl; external av__codec; +{$ELSE} +procedure avcodec_pix_fmt_string (buf: PAnsiChar; buf_size: cint; pix_fmt: TAVPixelFormat); + cdecl; external av__codec; +{$IFEND} {$IFEND} const @@ -2822,7 +3299,8 @@ const *) function img_get_alpha_info (src: {const} PAVPicture; pix_fmt: TAVPixelFormat; - width: cint; height: cint): cint; + width: cint; + height: cint): cint; cdecl; external av__codec; {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 @@ -2838,8 +3316,11 @@ function img_convert (dst: PAVPicture; dst_pix_fmt: TAVPixelFormat; (* deinterlace a picture *) (* deinterlace - if not supported return -1 *) -function avpicture_deinterlace (dst: PAVPicture; src: {const} PAVPicture; - pix_fmt: TAVPixelFormat; width: cint; height: cint): cint; +function avpicture_deinterlace (dst: PAVPicture; + src: {const} PAVPicture; + pix_fmt: TAVPixelFormat; + width: cint; + height: cint): cint; cdecl; external av__codec; {* external high level API *} @@ -2852,6 +3333,11 @@ var {$IFEND} {$IF LIBAVCODEC_VERSION >= 51049000} // 51.49.0 +(** + * If c is NULL, returns the first registered codec, + * if c is non-NULL, returns the next registered codec after c, + * or NULL if c is the last one. + *) function av_codec_next(c: PAVCodec): PAVCodec; cdecl; external av__codec; {$IFEND} @@ -2871,20 +3357,27 @@ function avcodec_build(): cuint; (** * Initializes libavcodec. * - * @warning This function \e must be called before any other libavcodec + * @warning This function must be called before any other libavcodec * function. *) procedure avcodec_init(); cdecl; external av__codec; (** - * Register the codec \p codec and initialize libavcodec. + * Register the codec codec and initialize libavcodec. * * @see avcodec_init() *) +{$IF LIBAVCODEC_VERSION >= 52014000} // 52.14.0 +procedure avcodec_register(codec: PAVCodec); + cdecl; external av__codec; +// Deprecated in favor of avcodec_register. +procedure register_avcodec(codec: PAVCodec); + cdecl; external av__codec; deprecated; +{$ELSEIF LIBAVCODEC_VERSION_MAJOR < 53} procedure register_avcodec(codec: PAVCodec); cdecl; external av__codec; - +{$IFEND} (** * Finds a registered encoder with a matching codec ID. * @@ -3050,125 +3543,189 @@ function avcodec_open(avctx: PAVCodecContext; codec: PAVCodec): cint; {$IF LIBAVCODEC_VERSION < 52000000} // < 52.0.0 (** - * @deprecated Use avcodec_decode_audio2() instead. + * @deprecated Use avcodec_decode_audio2 instead. *) function avcodec_decode_audio(avctx: PAVCodecContext; samples: PSmallint; var frame_size_ptr: cint; buf: {const} PByteArray; buf_size: cint): cint; - cdecl; external av__codec; + cdecl; external av__codec; {deprecated;} {$IFEND} +{$IF LIBAVCODEC_MAX_VERSION_MAJOR < 53} {$IF LIBAVCODEC_VERSION >= 51030000} // 51.30.0 (** - * Decodes an audio frame from \p buf into \p samples. - * The avcodec_decode_audio2() function decodes an audio frame from the input - * buffer \p buf of size \p buf_size. To decode it, it makes use of the - * audio codec which was coupled with \p avctx using avcodec_open(). The - * resulting decoded frame is stored in output buffer \p samples. If no frame - * could be decompressed, \p frame_size_ptr is zero. Otherwise, it is the - * decompressed frame size in \e bytes. + * Decodes an audio frame from buf into samples. + * Wrapper function which calls avcodec_decode_audio3. * - * @warning You \e must set \p frame_size_ptr to the allocated size of the - * output buffer before calling avcodec_decode_audio2(). + * @deprecated Use avcodec_decode_audio3 instead. + * @param avctx the codec context + * @param[out] samples the output buffer + * @param[in,out] frame_size_ptr the output buffer size in bytes + * @param[in] buf the input buffer + * @param[in] buf_size the input buffer size in bytes + * @return On error a negative value is returned, otherwise the number of bytes + * used or zero if no frame could be decompressed. + *) +function avcodec_decode_audio2(avctx: PAVCodecContext; samples: PSmallint; + var frame_size_ptr: cint; + buf: {const} PByteArray; buf_size: cint): cint; + cdecl; external av__codec; {deprecated;} +{$IFEND} +{$IFEND} + +{$IF LIBAVCODEC_VERSION >= 52025000} // 52.25.0 +(** + * Decodes the audio frame of size avpkt->size from avpkt->data into samples. + * Some decoders may support multiple frames in a single AVPacket, such + * decoders would then just decode the first frame. + * If no frame + * could be decompressed, frame_size_ptr is zero. Otherwise, it is the + * decompressed frame size in bytes. + * + * @warning You must set frame_size_ptr to the allocated size of the + * output buffer before calling avcodec_decode_audio3(). * - * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than + * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than * the actual read bytes because some optimized bitstream readers read 32 or 64 * bits at once and could read over the end. * - * @warning The end of the input buffer \p buf should be set to 0 to ensure that + * @warning The end of the input buffer avpkt->data should be set to 0 to ensure that * no overreading happens for damaged MPEG streams. * - * @note You might have to align the input buffer \p buf and output buffer \p + * @note You might have to align the input buffer avpkt->data and output buffer * samples. The alignment requirements depend on the CPU: On some CPUs it isn't * necessary at all, on others it won't work at all if not aligned and on others - * it will work but it will have an impact on performance. In practice, the - * bitstream should have 4 byte alignment at minimum and all sample data should - * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If - * the linesize is not a multiple of 16 then there's no sense in aligning the - * start of the buffer to 16. + * * it will work but it will have an impact on performance. + * + * In practice, avpkt->data should have 4 byte alignment at minimum and + * samples should be 16 byte aligned unless the CPU doesn't need it + * (AltiVec and SSE do). * * @note Some codecs have a delay between input and output, these need to be - * feeded with buf=NULL, buf_size=0 at the end to return the remaining frames. + * feeded with avpkt->data=NULL, avpkt->size=0 at the end to return the remaining frames. * * @param avctx the codec context * @param[out] samples the output buffer * @param[in,out] frame_size_ptr the output buffer size in bytes - * @param[in] buf the input buffer - * @param[in] buf_size the input buffer size in bytes + * @param[in] avpkt The input AVPacket containing the input buffer. + * You can create such packet with av_init_packet() and by then setting + * data and size, some decoders might in addition need other fields. + * All decoders are designed to use the least fields possible though. * @return On error a negative value is returned, otherwise the number of bytes * used or zero if no frame could be decompressed. *) -function avcodec_decode_audio2(avctx: PAVCodecContext; samples: PSmallint; +function avcodec_decode_audio3(avctx: PAVCodecContext; samples: PSmallint; var frame_size_ptr: cint; - buf: {const} PByteArray; buf_size: cint): cint; + avpkt: PAVPacket): cint; cdecl; external av__codec; {$IFEND} +{$IF LIBAVCODEC_MAX_VERSION_MAJOR < 53} (** - * Decodes a video frame from \p buf into \p picture. - * The avcodec_decode_video() function decodes a video frame from the input - * buffer \p buf of size \p buf_size. To decode it, it makes use of the - * video codec which was coupled with \p avctx using avcodec_open(). The - * resulting decoded frame is stored in \p picture. + * Decodes a video frame from buf into picture. + * Wrapper function which calls avcodec_decode_video2. * - * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than + * @deprecated Use avcodec_decode_video2 instead. + * @param avctx the codec context + * @param[out] picture The AVFrame in which the decoded video frame will be stored. + * @param[in] buf the input buffer + * @param[in] buf_size the size of the input buffer in bytes + * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero. + * @return On error a negative value is returned, otherwise the number of bytes + * used or zero if no frame could be decompressed. + *) +function avcodec_decode_video(avctx: PAVCodecContext; picture: PAVFrame; + var got_picture_ptr: cint; + buf: {const} PByteArray; buf_size: cint): cint; + cdecl; external av__codec; {deprecated;} +{$IFEND} + +{$IF LIBAVCODEC_VERSION >= 52025000} // 52.25.0 +(** + * Decodes the video frame of size avpkt->size from avpkt->data into picture. + * Some decoders may support multiple frames in a single AVPacket, such + * decoders would then just decode the first frame. + * + * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than * the actual read bytes because some optimized bitstream readers read 32 or 64 * bits at once and could read over the end. * - * @warning The end of the input buffer \p buf should be set to 0 to ensure that + * @warning The end of the input buffer buf should be set to 0 to ensure that * no overreading happens for damaged MPEG streams. * - * @note You might have to align the input buffer \p buf and output buffer \p - * samples. The alignment requirements depend on the CPU: on some CPUs it isn't + * @note You might have to align the input buffer avpkt->data. + * The alignment requirements depend on the CPU: on some CPUs it isn't * necessary at all, on others it won't work at all if not aligned and on others - * it will work but it will have an impact on performance. In practice, the - * bitstream should have 4 byte alignment at minimum and all sample data should - * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If - * the linesize is not a multiple of 16 then there's no sense in aligning the - * start of the buffer to 16. + * it will work but it will have an impact on performance. + * + * In practice, avpkt->data should have 4 byte alignment at minimum. * * @param avctx the codec context * @param[out] picture The AVFrame in which the decoded video frame will be stored. - * @param[in] buf the input buffer - * @param[in] buf_size the size of the input buffer in bytes + * @param[in] avpkt The input AVpacket containing the input buffer. + * You can create such packet with av_init_packet() and by then setting + * data and size, some decoders might in addition need other fields like + * flags&PKT_FLAG_KEY. All decoders are designed to use the least + * fields possible. * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero. * @return On error a negative value is returned, otherwise the number of bytes * used or zero if no frame could be decompressed. *) -function avcodec_decode_video(avctx: PAVCodecContext; picture: PAVFrame; +function avcodec_decode_video2(avctx: PAVCodecContext; picture: PAVFrame; var got_picture_ptr: cint; - buf: {const} PByteArray; buf_size: cint): cint; + avpkt: PAVPacket): cint; cdecl; external av__codec; +{$IFEND} +{$IF LIBAVCODEC_MAX_VERSION_MAJOR < 53} (* Decode a subtitle message. Return -1 if error, otherwise return the * number of bytes used. If no subtitle could be decompressed, - * got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. *) + * got_sub_ptr is zero. Otherwise, the subtitle is stored in*sub. + *) function avcodec_decode_subtitle(avctx: PAVCodecContext; sub: PAVSubtitle; var got_sub_ptr: cint; buf: {const} PByteArray; buf_size: cint): cint; cdecl; external av__codec; +{$IFEND} + +{$IF LIBAVCODEC_VERSION >= 52025000} // 52.25.0 +(* Decodes a subtitle message. + * Returns a negative value on error, otherwise returns the number of bytes used. + * If no subtitle could be decompressed, got_sub_ptr is zero. + * Otherwise, the subtitle is stored in sub. + * + * @param avctx the codec context + * @param[out] sub The AVSubtitle in which the decoded subtitle will be stored. + * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero. + * @param[in] avpkt The input AVPacket containing the input buffer. + *) +function avcodec_decode_subtitle2(avctx: PAVCodecContext; sub: PAVSubtitle; + var got_sub_ptr: cint; + avpkt: PAVPacket): cint; + cdecl; external av__codec; +{$IFEND} + function avcodec_parse_frame(avctx: PAVCodecContext; pdata: PPointer; data_size_ptr: PCint; buf: PByteArray; buf_size: cint): cint; cdecl; external av__codec; (** - * Encodes an audio frame from \p samples into \p buf. - * The avcodec_encode_audio() function encodes an audio frame from the input - * buffer \p samples. To encode it, it makes use of the audio codec which was - * coupled with \p avctx using avcodec_open(). The resulting encoded frame is - * stored in output buffer \p buf. + * Encodes an audio frame from samples into buf. * - * @note The output buffer should be at least \c FF_MIN_BUFFER_SIZE bytes large. + * @note The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large. + * However, for PCM audio the user will know how much space is needed + * because it depends on the value passed in buf_size as described + * below. In that case a lower value can be used. * * @param avctx the codec context * @param[out] buf the output buffer * @param[in] buf_size the output buffer size * @param[in] samples the input buffer containing the samples * The number of samples read from this buffer is frame_size*channels, - * both of which are defined in \p avctx. - * For PCM audio the number of samples read from \p samples is equal to - * \p buf_size * input_sample_size / output_sample_size. + * both of which are defined in avctx. + * For PCM audio the number of samples read from samples is equal to + * buf_size * input_sample_size / output_sample_size. * @return On error a negative value is returned, on success zero or the number * of bytes used to encode the data read from the input buffer. *) @@ -3177,12 +3734,9 @@ function avcodec_encode_audio(avctx: PAVCodecContext; buf: PByte; cdecl; external av__codec; (** - * Encodes a video frame from \p pict into \p buf. - * The avcodec_encode_video() function encodes a video frame from the input - * \p pict. To encode it, it makes use of the video codec which was coupled with - * \p avctx using avcodec_open(). The resulting encoded bytes representing the - * frame are stored in the output buffer \p buf. The input picture should be - * stored using a specific format, namely \c avctx.pix_fmt. + * Encodes a video frame from pict into buf. + * The input picture should be + * stored using a specific format, namely avctx.pix_fmt. * * @param avctx the codec context * @param[out] buf the output buffer for the bitstream of encoded frame @@ -3208,6 +3762,7 @@ function avcodec_close(avctx: PAVCodecContext): cint; * functions. * * @see register_avcodec + * @see avcodec_register * @see av_register_codec_parser * @see av_register_bitstream_filter *) @@ -3226,7 +3781,7 @@ procedure avcodec_default_free_buffers(s: PAVCodecContext); (* misc useful functions *) (** - * Returns a single letter to describe the given picture type \p pict_type. + * Returns a single letter to describe the given picture type pict_type. * * @param[in] pict_type the picture type * @return A single character representing the picture type. @@ -3271,6 +3826,15 @@ type next_frame_offset: cint64; (* offset of the next frame *) (* video info *) pict_type: cint; (* XXX: put it back in AVCodecContext *) + (** + * This field is used for proper frame duration computation in lavf. + * It signals, how much longer the frame duration of the current frame + * is compared to normal frame duration. + * + * frame_duration = (1 + repeat_pict) * time_base + * + * It is used by codecs like H.264 to display telecined material. + *) repeat_pict: cint; (* XXX: put it back in AVCodecContext *) pts: cint64; (* pts of the current frame *) dts: cint64; (* dts of the current frame *) @@ -3293,6 +3857,94 @@ type {$IF LIBAVCODEC_VERSION >= 51057001} // 51.57.1 cur_frame_end: array [0..AV_PARSER_PTS_NB - 1] of cint64; {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52016000} // 52.16.0 + (*! + * Set by parser to 1 for key frames and 0 for non-key frames. + * It is initialized to -1, so if the parser doesn't set this flag, + * old-style fallback using FF_I_TYPE picture type as key frames + * will be used. + *) + key_frame: cint; + {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52018000} // 52.18.0 + (** + * Time difference in stream time base units from the pts of this + * packet to the point at which the output from the decoder has converged + * independent from the availability of previous frames. That is, the + * frames are virtually identical no matter if decoding started from + * the very first frame or from this keyframe. + * Is AV_NOPTS_VALUE if unknown. + * This field is not the display duration of the current frame. + * + * The purpose of this field is to allow seeking in streams that have no + * keyframes in the conventional sense. It corresponds to the + * recovery point SEI in H.264 and match_time_delta in NUT. It is also + * essential for some types of subtitle streams to ensure that all + * subtitles are correctly displayed after seeking. + *) + convergence_duration: cint64; + {$IFEND} + {$IF LIBAVCODEC_VERSION >= 52019000} // 52.19.0 + // Timestamp generation support: + (** + * Synchronization point for start of timestamp generation. + * + * Set to >0 for sync point, 0 for no sync point and <0 for undefined + * (default). + * + * For example, this corresponds to presence of H.264 buffering period + * SEI message. + *) + dts_sync_point: cint; + + (** + * Offset of the current timestamp against last timestamp sync point in + * units of AVCodecContext.time_base. + * + * Set to INT_MIN when dts_sync_point unused. Otherwise, it must + * contain a valid timestamp offset. + * + * Note that the timestamp of sync point has usually a nonzero + * dts_ref_dts_delta, which refers to the previous sync point. Offset of + * the next frame after timestamp sync point will be usually 1. + * + * For example, this corresponds to H.264 cpb_removal_delay. + *) + dts_ref_dts_delta: cint; + + (** + * Presentation delay of current frame in units of AVCodecContext.time_base. + * + * Set to INT_MIN when dts_sync_point unused. Otherwise, it must + * contain valid non-negative timestamp delta (presentation time of a frame + * must not lie in the past). + * + * This delay represents the difference between decoding and presentation + * time of the frame. + * + * For example, this corresponds to H.264 dpb_output_delay. + *) + pts_dts_delta: cint; + {$IFEND} + + {$IF LIBAVCODEC_VERSION >= 52021000} // 52.21.0 + (** + * Position of the packet in file. + * + * Analogous to cur_frame_pts/dts + *) + cur_frame_pos: array [0..AV_PARSER_PTS_NB - 1] of cint64; + + (** + * Byte position of currently parsed frame in stream. + *) + pos: cint64; + + (** + * Previous frame byte position. + *) + last_pos: cint64; + {$IFEND} end; TAVCodecParser = record @@ -3327,12 +3979,60 @@ procedure av_register_codec_parser(parser: PAVCodecParser); function av_parser_init(codec_id: cint): PAVCodecParserContext; cdecl; external av__codec; +{$IF LIBAVCODEC_MAX_VERSION_MAJOR < 53} function av_parser_parse(s: PAVCodecParserContext; avctx: PAVCodecContext; - poutbuf: PPointer; poutbuf_size: PCint; - buf: {const} PByteArray; buf_size: cint; - pts: cint64; dts: cint64): cint; - cdecl; external av__codec; + poutbuf: PPointer; + poutbuf_size: PCint; + buf: {const} PByteArray; + buf_size: cint; + pts: cint64; + dts: cint64): cint; + cdecl; external av__codec; deprecated; +{$IFEND} + +{$IF LIBAVCODEC_VERSION >= 52021000} // 52.21.0 +(** + * Parse a packet. + * + * @param s parser context. + * @param avctx codec context. + * @param poutbuf set to pointer to parsed buffer or NULL if not yet finished. + * @param poutbuf_size set to size of parsed buffer or zero if not yet finished. + * @param buf input buffer. + * @param buf_size input length, to signal EOF, this should be 0 (so that the last frame can be output). + * @param pts input presentation timestamp. + * @param dts input decoding timestamp. + * @param pos input byte position in stream. + * @return the number of bytes of the input bitstream used. + * + * Example: + * @code + * while (in_len) do + * begin + * len := av_parser_parse2(myparser, AVCodecContext, data, size, + * in_data, in_len, + * pts, dts, pos); + * in_data := in_data + len; + * in_len := in_len - len; + * + * if (size) then + * decode_frame(data, size); + * end; + * @endcode + *) +function av_parser_parse2(s: PAVCodecParserContext; + avctx: PAVCodecContext; + poutbuf: PPointer; + poutbuf_size: PCint; + buf: {const} PByteArray; + buf_size: cint; + pts: cint64; + dts: cint64; + pos: cint64): cint; + cdecl; external av__codec; +{$IFEND} + function av_parser_change(s: PAVCodecParserContext; avctx: PAVCodecContext; poutbuf: PPointer; poutbuf_size: PCint; @@ -3395,6 +4095,22 @@ function av_bitstream_filter_next(f: PAVBitStreamFilter): PAVBitStreamFilter; procedure av_fast_realloc(ptr: pointer; size: PCuint; min_size: cuint); cdecl; external av__codec; +{$IF LIBAVCODEC_VERSION < 52025000} // 52.25.0 +(** + * Allocates a buffer, reusing the given one if large enough. + * + * Contrary to av_fast_realloc the current buffer contents might not be + * preserved and on error the old buffer is freed, thus no special + * handling to avoid memleaks is necessary. + * + * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer + * @param size size of the buffer *ptr points to + * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and + * *size 0 if an error occurred. + *) +procedure av_fast_malloc(ptr: pointer; size: PCuint; min_size: cuint); + cdecl; external av__codec; +{$IFEND} {$IF LIBAVCODEC_VERSION < 51057000} // 51.57.0 (* for static data only *) @@ -3407,7 +4123,7 @@ procedure av_fast_realloc(ptr: pointer; size: PCuint; min_size: cuint); * and should correctly use static arrays * *) -procedure av_free_static(); +procedure av_free_static(); cdecl; external av__codec; deprecated; (** @@ -3433,22 +4149,49 @@ procedure av_realloc_static(ptr: pointer; size: cuint); (** * Copy image 'src' to 'dst'. *) -procedure av_picture_copy(dst: PAVPicture; src: {const} PAVPicture; - pix_fmt: cint; width: cint; height: cint); +procedure av_picture_copy(dst: PAVPicture; + src: {const} PAVPicture; +{$IF LIBAVCODEC_VERSION < 52022001} // 52.22.1 + pix_fmt: cint; +{$ELSE} + pix_fmt: TAVPixelFormat; +{$IFEND} + width: cint; + height: cint); cdecl; external av__codec; (** * Crop image top and left side. *) -function av_picture_crop(dst: PAVPicture; src: {const} PAVPicture; - pix_fmt: cint; top_band: cint; left_band: cint): cint; +function av_picture_crop(dst: PAVPicture; + src: {const} PAVPicture; +{$IF LIBAVCODEC_VERSION < 52022001} // 52.22.1 + pix_fmt: cint; +{$ELSE} + pix_fmt: TAVPixelFormat; +{$IFEND} + top_band: cint; + left_band: cint): cint; cdecl; external av__codec; (** * Pad image. *) -function av_picture_pad(dst: PAVPicture; src: {const} PAVPicture; height: cint; width: cint; pix_fmt: cint; - padtop: cint; padbottom: cint; padleft: cint; padright: cint; color: PCint): cint; +function av_picture_pad(dst: PAVPicture; + src: {const} PAVPicture; + height: cint; + width: cint; +{$IF LIBAVCODEC_VERSION < 52022001} // 52.22.1 + pix_fmt: cint; +{$ELSE} + pix_fmt: TAVPixelFormat; +{$IFEND} + padtop: cint; + padbottom: cint; + padleft: cint; + padright: + cint; + color: PCint): cint; cdecl; external av__codec; {$IFEND} @@ -3481,7 +4224,7 @@ function av_xiphlacing(s: PByte; v: cuint): cuint; {$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0 (** - * Parses \p str and put in \p width_ptr and \p height_ptr the detected values. + * Parses str and put in width_ptr and height_ptr the detected values. * * @return 0 in case of a successful parsing, a negative value otherwise * @param[in] str the string to parse: it has to be a string in the format @@ -3495,11 +4238,11 @@ function av_parse_video_frame_size(width_ptr: PCint; height_ptr: PCint; str: {co cdecl; external av__codec; (** - * Parses \p str and put in \p frame_rate the detected values. + * Parses str and put in frame_rate the detected values. * * @return 0 in case of a successful parsing, a negative value otherwise * @param[in] str the string to parse: it has to be a string in the format - * <frame_rate_nom>/<frame_rate_den>, a float number or a valid video rate abbreviation + * <frame_rate_num>/<frame_rate_den>, a float number or a valid video rate abbreviation * @param[in,out] frame_rate pointer to the AVRational which will contain the detected * frame rate *) @@ -3559,11 +4302,75 @@ const AVERROR_NOMEM = AVERROR_SIGN * ENOMEM; (**< not enough memory *) AVERROR_NOFMT = AVERROR_SIGN * EILSEQ; (**< unknown format *) AVERROR_NOTSUPP = AVERROR_SIGN * ENOSYS; (**< Operation not supported. *) - AVERROR_NOENT = AVERROR_SIGN * ENOENT; {**< No such file or directory. *} + AVERROR_NOENT = AVERROR_SIGN * ENOENT; (**< No such file or directory. *) +{$IF LIBAVCODEC_VERSION >= 52017000} // 52.17.0 + AVERROR_EOF = AVERROR_SIGN * EPIPE; (**< End of file. *) +{$IFEND} // Note: function calls as constant-initializers are invalid //AVERROR_PATCHWELCOME = -MKTAG('P','A','W','E'); {**< Not yet implemented in FFmpeg. Patches welcome. *} AVERROR_PATCHWELCOME = -(ord('P') or (ord('A') shl 8) or (ord('W') shl 16) or (ord('E') shl 24)); +{$IF LIBAVCODEC_VERSION >= 52018000} // 52.18.0 +(** + * Registers the hardware accelerator hwaccel. + *) +procedure av_register_hwaccel (hwaccel: PAVHWAccel) + cdecl; external av__codec; + +(** + * If hwaccel is NULL, returns the first registered hardware accelerator, + * if hwaccel is non-NULL, returns the next registered hardware accelerator + * after hwaccel, or NULL if hwaccel is the last one. + *) +function av_hwaccel_next (hwaccel: PAVHWAccel): PAVHWAccel; + cdecl; external av__codec; +{$IFEND} + +{$IF LIBAVCODEC_VERSION >= 52030000} // 52.30.0 +(** + * Lock operation used by lockmgr + *) +type + TAVLockOp = ( + AV_LOCK_CREATE, ///< Create a mutex + AV_LOCK_OBTAIN, ///< Lock the mutex + AV_LOCK_RELEASE, ///< Unlock the mutex + AV_LOCK_DESTROY ///< Free mutex resources + ); + +(** + * Register a user provided lock manager supporting the operations + * specified by AVLockOp. mutex points to a (void *) where the + * lockmgr should store/get a pointer to a user allocated mutex. It's + * NULL upon AV_LOCK_CREATE and != NULL for all other ops. + * + * @param cb User defined callback. Note: FFmpeg may invoke calls to this + * callback during the call to av_lockmgr_register(). + * Thus, the application must be prepared to handle that. + * If cb is set to NULL the lockmgr will be unregistered. + * Also note that during unregistration the previously registered + * lockmgr callback may also be invoked. + *) +function av_lockmgr_register(cb: function (mutex: Ppointer; op: TAVLockOp)): cint; + cdecl; external av__codec; +{$IFEND} + implementation +{$IF (LIBAVCODEC_VERSION >= 52025000) and (LIBAVCODEC_VERSION <= 5202700)} // 52.25.0 +procedure av_free_packet(pkt: PAVPacket);{$IFDEF HASINLINE} inline; {$ENDIF} +begin + if (pkt <> nil) then + begin + if (pkt.destruct <> nil) then + pkt.destruct(pkt) + else + begin + pkt.data = NULL; + pkt.size = 0; + end; + end; +end; +{$IFEND} + end. |