diff options
Diffstat (limited to 'Game/Code/lib/ffmpeg/avformat.pas')
| -rw-r--r-- | Game/Code/lib/ffmpeg/avformat.pas | 248 |
1 files changed, 152 insertions, 96 deletions
diff --git a/Game/Code/lib/ffmpeg/avformat.pas b/Game/Code/lib/ffmpeg/avformat.pas index 312fb67d..7fd009e9 100644 --- a/Game/Code/lib/ffmpeg/avformat.pas +++ b/Game/Code/lib/ffmpeg/avformat.pas @@ -15,33 +15,29 @@ * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) + +(* This is a part of Pascal porting of ffmpeg. Originally by Victor Zinetz for Delphi and Free Pascal on Windows. +For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT +in the source codes *) + unit avformat; -interface +{$LINKLIB libavutil} +{$LINKLIB libavformat} +{$MODE DELPHI } (* CAT *) +{$PACKENUM 4} (* every enum type variables uses 4 bytes, CAT *) +{$PACKRECORDS C} (* GCC compatible, Record Packing, CAT *) -{$IFDEF FPC} - {$MODE Delphi} -{$ENDIF} +interface uses - {$IFDEF win32} - windows, - {$ENDIF} - avcodec, - avio, - rational, - avutil; + avcodec, avio, rational, avutil; (* CAT *) const - {$IFDEF win32} - av__format = 'avformat-50.dll'; - {$ELSE} - av__format = 'libavformat.so'; // .0d - av__codec = 'libavcodec.so'; - {$ENDIF} - - LIBAVUTIL_VERSION_INT = ((49 shl 16) + (0 shl 8) + 1); - LIBAVUTIL_VERSION = '49.0.1'; + av__format = 'libavformat.51'; (* CAT *) + + LIBAVUTIL_VERSION_INT = ((51 shl 16) + (12 shl 8) + 1); + LIBAVUTIL_VERSION = '51.12.1'; LIBAVUTIL_BUILD = LIBAVUTIL_VERSION_INT; MAXINT64 = $7fffffffffffffff; @@ -49,10 +45,37 @@ const PKT_FLAG_KEY = $0001; - (* AVImageFormat.flags field constants *) - AVIMAGE_INTERLEAVED = $0001; (* image format support interleaved output *) - MAX_STREAMS = 20; +(*************************************************) +(* input/output formats *) + + AVPROBE_SCORE_MAX = 100; ///< max 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 + AVFMT_NOFILE = $0001; + AVFMT_NEEDNUMBER = $0002; (**< needs '%d' in filename *) + AVFMT_SHOW_IDS = $0008; (**< show format stream IDs numbers *) + AVFMT_RAWPICTURE = $0020; (**< format wants AVPicture structure for + raw picture data *) + AVFMT_GLOBALHEADER = $0040; (**< format wants global header *) + AVFMT_NOTIMESTAMPS = $0080; (**< format does not need / have any timestamps *) + AVFMT_GENERIC_INDEX = $0100; (**< use generic index building code *) + + AVINDEX_KEYFRAME = $0001; + + MAX_REORDER_DELAY = 4; + + AVFMTCTX_NOHEADER = $0001; (**< signal that no header is present + (streams are added dynamically) *) + MAX_STREAMS = 20; + AVFMT_NOOUTPUTLOOP = -1; + AVFMT_INFINITEOUTPUTLOOP = 0; + AVFMT_FLAG_GENPTS = $0001; ///< generate pts if missing 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 + type + HFILE = THandle; /// (* CAT *) int = integer; PAVPacket = ^TAVPacket; @@ -75,9 +98,10 @@ type stream_index: integer; flags: integer; duration: integer; ///< presentation duration in time_base units (0 if not available) - destruct: procedure (p: PAVPacket); + destruct: procedure (p: PAVPacket); (* This cannot be var : TAVPacket. + because TAVPacket is not completely defined yet *) priv: pointer; - pos: int64; ///< byte position in stream, -1 if unknown + pos: int64 ///< byte position in stream, -1 if unknown end; (*************************************************) @@ -90,9 +114,6 @@ type val, num, den: int64; end; -(*************************************************) -(* input/output formats *) - (* this structure contains the data a format has to probe a file *) TAVProbeData = record {12} filename: pchar; @@ -107,9 +128,9 @@ type width: integer; height: integer; pix_fmt: TAVPixelFormat; - image_format: PAVImageFormat; (* 4 bytes *) +{ image_format: PAVImageFormat; (* 4 bytes *)} (* CAT#3 *) channel: integer; (* used to select dv channel *) - device: pchar; (* video, audio or DV device *) + device: pchar; (* video, audio or DV device, if LIBAVFORMAT_VERSION_INT < (52<<16) *) standard: pchar; (* tv standard, NTSC, PAL, SECAM *) // int mpeg2ts_raw:1; (* force raw MPEG2 transport stream output, if possible *) // int mpeg2ts_compute_pcr:1; (* compute exact PCR for each transport @@ -117,6 +138,7 @@ type // mpeg2ts_raw is TRUE *) // int initial_pause:1; (* do not begin to play the stream // immediately (RTSP only) *) +// int prealloced_context:1; dummy: byte; video_codec_id: TCodecID; audio_codec_id: TCodecID; @@ -133,13 +155,20 @@ type audio_codec: TCodecID; (* default audio codec *) video_codec: TCodecID; (* default video codec *) write_header: function (c: PAVFormatContext): integer; cdecl; - write_packet: function (c: PAVFormatContext; pkt: PAVPacket): integer; cdecl; + write_packet: function (c: PAVFormatContext; var pkt: TAVPacket): integer; cdecl; (* CAT#2 *) write_trailer: function (c: PAVFormatContext): integer; cdecl; (* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER *) flags: integer; (* currently only used to set pixel format if not YUV420P *) set_parameters: function (c: PAVFormatContext; f: PAVFormatParameters): integer; cdecl; interleave_packet: function (s: PAVFormatContext; _out: PAVPacket; _in: PAVPacket; flush: integer): integer; cdecl; + + (** + * list of supported codec_id-codec_tag pairs, ordered by "better choice first" + * the arrays are all CODEC_ID_NONE terminated + *) + //const struct AVCodecTag **codec_tag; + (* private fields *) next: PAVOutputFormat; end; @@ -159,7 +188,7 @@ type (* 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. *) - read_packet: function (c: PAVFormatContext; pkt: PAVPacket): integer; cdecl; + read_packet: function (c: PAVFormatContext; var pkt: TAVPacket): integer; cdecl; (* close the stream. The AVFormatContext and AVStreams are not freed by this function *) read_close: function (c: PAVFormatContext): integer; cdecl; @@ -188,55 +217,66 @@ type (* pause playing - only meaningful if using a network based format (RTSP) *) read_pause: function (c: PAVFormatContext): integer; cdecl; + //const struct AVCodecTag **codec_tag; + (* private fields *) next: PAVInputFormat; end; + TAVStreamParseType = ( + AVSTREAM_PARSE_NONE, + AVSTREAM_PARSE_FULL, (**< full parsing and repack *) + AVSTREAM_PARSE_HEADERS, (**< only parse headers, don't repack *) + AVSTREAM_PARSE_TIMESTAMPS (**< full parsing and interpolation of timestamps for frames not starting on packet boundary *) + ); + TAVIndexEntry = record {24} pos: int64; timestamp: int64; (* the following 2 flags indicate that the next/prev keyframe is known, and scaning for it isnt needed *) flags: integer; +// int flags:2; +// int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs 32 byte due to possible 8byte align). min_distance: integer; (* min distance between this and the previous keyframe, used to avoid unneeded searching *) end; TAVStream = record {168} - index: integer; (* stream index in AVFormatContext *) - id: integer; (* format specific stream id *) - codec: PAVCodecContext; (* codec context *) + index: integer; (* stream index in AVFormatContext *) {4-4} + id: integer; (* format specific stream id *) {4-8} + codec: PAVCodecContext; (* codec context *) {4-12} (*** real base frame rate of the stream. * for example if the timebase 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; - priv_data: pointer; + r_frame_rate: TAVRational; {4*2=8-20} + priv_data: pointer; {4-24} (* internal data used in av_find_stream_info() *) - codec_info_duration: int64; - codec_info_nb_frames: integer; + codec_info_duration: int64; (* #if LIBAVFORMAT_VERSION_INT < (52<<16) *) {8-32} + codec_info_nb_frames: integer; (* #if LIBAVFORMAT_VERSION_INT < (52<<16) *) {4-38} (* encoding: PTS generation when outputing stream *) - pts: TAVFrac; + pts: TAVFrac; {8*3=24-62} (*** this is the fundamental unit of time (in seconds) in terms * of which frame timestamps are represented. for fixed-fps content, * timebase should be 1/framerate and timestamp increments should be * identically 1. *) - time_base: TAVRational; - pts_wrap_bits: integer; (* number of bits in pts (used for wrapping control) *) + time_base: TAVRational; {4*2=8-70} + pts_wrap_bits: integer; (* number of bits in pts (used for wrapping control) *) {4-74} (* ffmpeg.c private use *) - stream_copy: integer; (* if TRUE, just copy stream *) - discard: TAVDiscard; ///< selects which packets can be discarded at will and dont need to be demuxed + stream_copy: integer; (* if TRUE, just copy stream *) {4-78} + discard: TAVDiscard; ///< selects which packets can be discarded at will and dont need to be demuxed {4-82} //FIXME move stuff to a flags field? (* quality, as it has been removed from AVCodecContext and put in AVVideoFrame * MN:dunno if thats the right place, for it *) - quality: single; + quality: single; {4-86} (* decoding: position of the first frame of the component, in AV_TIME_BASE fractional seconds. *) - start_time: int64; - (* decoding: duration of the stream, in AV_TIME_BASE fractional seconds. *) - duration: int64; + start_time: int64; {8-92} + (* decoding: duration of the stream, in stream time base. *) + duration: int64; {8-100} - language: array [0..3] of char; (* ISO 639 3-letter language code (empty string if undefined) *) + language: array [0..3] of char; (* ISO 639 3-letter language code (empty string if undefined) *)(* 101 th byte - 1 base *) {4-104} (* av_read_frame() support *) - need_parsing: integer; ///< 1->full parsing needed, 2->only parse headers dont repack + need_parsing: TAVStreamParseType;//CAT#3 ///< 1->full parsing needed, 2->only parse headers dont repack parser: PAVCodecParserContext; cur_dts: int64; @@ -245,10 +285,10 @@ type (* av_seek_frame() support *) index_entries: PAVIndexEntry; (* only used if the format does not support seeking natively *) nb_index_entries: integer; - index_entries_allocated_size: integer; + index_entries_allocated_size: cardinal; (* CAT#3 *) nb_frames: int64; ///< number of frames in this stream if known or 0 - pts_buffer: array [0..4] of int64; + pts_buffer: array [0..MAX_REORDER_DELAY] of int64 end; (* format I/O context *) @@ -259,7 +299,7 @@ type oformat: PAVOutputFormat; priv_data: pointer; pb: TByteIOContext; - nb_streams: cardinal;// integer; + nb_streams: cardinal; (* CAT#3 *) streams: array [0..MAX_STREAMS - 1] of PAVStream; filename: array [0..1023] of char; (* input or output filename *) (* stream info *) @@ -297,7 +337,7 @@ type (* av_read_frame() support *) cur_st: PAVStream; - cur_ptr: pchar; + cur_ptr: pbyte; cur_len: integer; cur_pkt: TAVPacket; @@ -317,6 +357,14 @@ type loop_input: integer; (* decoding: size of data to probe; encoding unused *) probesize: cardinal; + + (** + * maximum duration in AV_TIME_BASE units over which the input should be analyzed in av_find_stream_info() + *) + max_analyze_duration: integer; + + key: pbyte; + keylen : integer end; TAVPacketList = record {64} @@ -353,23 +401,19 @@ type flags: integer; next: PAVImageFormat; end; - - {$IFNDEF win32} - HFILE = THandle; - {$ENDIF} -procedure av_destruct_packet_nofree (pkt: PAVPacket); +procedure av_destruct_packet_nofree (var pkt: TAVPacket); (* CAT#2 *) cdecl; external av__format; -procedure av_destruct_packet (pkt: PAVPacket); +procedure av_destruct_packet (var pkt: TAVPacket); (* CAT#2 *) cdecl; external av__format; (* initialize optional fields of a packet *) -procedure av_init_packet (pkt: PAVPacket); +procedure av_init_packet (var pkt: TAVPacket); (* CAT#2 *) -function av_new_packet(pkt: PAVPacket; size: integer): integer; +function av_new_packet(var pkt: TAVPacket; size: integer): integer; (* CAT#2 *) cdecl; external av__format; -function av_get_packet (s: PByteIOContext; pkt: PAVPacket; size: integer): integer; +function av_get_packet (s: PByteIOContext; var pkt: TAVPacket; size: integer): integer; (* CAT#2 *) cdecl; external av__format; function av_dup_packet (pkt: PAVPacket): integer; @@ -378,7 +422,7 @@ function av_dup_packet (pkt: PAVPacket): integer; (** * Free a packet * * @param pkt packet to free *) -procedure av_free_packet (pkt: PAVPacket); +procedure av_free_packet (var pkt: TAVPacket); (* CAT#2 *) procedure av_register_image_format (img_fmt: PAVImageFormat); cdecl; external av__format; @@ -408,15 +452,29 @@ function av_write_image(pb: PByteIOContext; fmt: PAVImageFormat; img: PAVImageIn //#include "rtsp.h" (* utils.c *) - procedure av_register_input_format (format: PAVInputFormat); cdecl; external av__format; - procedure av_register_output_format (format: PAVOutputFormat); cdecl; external av__format; - function guess_stream_format (short_name: pchar; filename: pchar; mime_type: pchar): PAVOutputFormat; cdecl; external av__format; - function guess_format(short_name: pchar; filename: pchar; mime_type: pchar): PAVOutputFormat; cdecl; external av__format; + procedure av_register_input_format (format: PAVInputFormat); + cdecl; external av__format; + + procedure av_register_output_format (format: PAVOutputFormat); + cdecl; external av__format; + + function guess_stream_format (short_name: pchar; filename: pchar; mime_type: pchar): PAVOutputFormat; + cdecl; external av__format; + + function guess_format(short_name: pchar; filename: pchar; mime_type: pchar): PAVOutputFormat; + cdecl; external av__format; + function av_guess_codec(fmt: PAVOutputFormat; short_name: pchar; - filename: pchar; mime_type: pchar; _type: TCodecType): TCodecID; cdecl; external av__format; - procedure av_hex_dump (f: HFILE; buf: pchar; size: integer); cdecl; external av__format; - procedure av_pkt_dump(f: HFILE; pkt: pAVPacket; dump_payload: integer); cdecl; external av__format; - procedure av_register_all (); cdecl; external av__format; + filename: pchar; mime_type: pchar; _type: TCodecType): TCodecID; + cdecl; external av__format; + + procedure av_hex_dump (f: HFILE; buf: pchar; size: integer); + cdecl; external av__format; + procedure av_pkt_dump(f: HFILE; var pkt: TAVPacket; dump_payload: integer); (* CAT#2 *) + cdecl; external av__format; + + procedure av_register_all (); + cdecl; external av__format; (* media file input *) @@ -467,7 +525,7 @@ const function av_find_stream_info (ic: PAVFormatContext): integer; cdecl; external av__format; - function av_read_packet (s: PAVFormatContext; pkt: PAVPacket): integer; + function av_read_packet (s: PAVFormatContext; var pkt: TAVPacket): integer; (* CAT#2 *) cdecl; external av__format; (*** Return the next frame of a stream. * @@ -487,7 +545,7 @@ const * * @return 0 if OK, < 0 if error or end of file. *) - function av_read_frame (s: PAVFormatContext; pkt: PAVPacket): integer; + function av_read_frame (s: PAVFormatContext; var pkt: TAVPacket): integer; (* CAT#2 *) cdecl; external av__format; function av_seek_frame (s: PAVFormatContext; stream_index: integer; timestamp: int64; flags: integer): integer; cdecl; external av__format; @@ -530,11 +588,11 @@ const function av_write_header (s: PAVFormatContext): integer; cdecl; external av__format; - function av_write_frame(s: PAVFormatContext; pkt: PAVPacket): integer; - cdecl; external av__format; + function av_write_frame(s: PAVFormatContext; var pkt: TAVPacket): integer; + cdecl; external av__format; (* CAT#2 *) - function av_interleaved_write_frame (s: PAVFormatContext; pkt: PAVPacket): integer; - cdecl; external av__format; + function av_interleaved_write_frame (s: PAVFormatContext; var pkt: TAVPacket): integer; + cdecl; external av__format; (* CAT#2 *) function av_interleave_packet_per_dts(s: PAVFormatContext; _out: PAVPacket; pkt: PAVPacket; flush: integer): integer; @@ -559,7 +617,6 @@ const const FFM_PACKET_SIZE = 4096; - {$IFNDEF FPC} function ffm_read_write_index (fd: integer): int64; cdecl; external av__format; @@ -568,23 +625,20 @@ const procedure ffm_set_write_index (s: PAVFormatContext; pos: int64; file_size: int64); cdecl; external av__format; - {$ENDIF} - + function find_info_tag (arg: pchar; arg_size: integer; tag1: pchar; info: pchar): integer; cdecl; external av__format; - {$IFNDEF FPC} function get_frame_filename(buf: pchar; buf_size: integer; path: pchar; number: integer): integer; cdecl; external av__format; - function filename_number_test (filename: pchar): integer; cdecl; external av__format; + (* grab specific *) function video_grab_init (): integer; cdecl; external av__format; - function audio_init (): integer; cdecl; external av__format; @@ -593,7 +647,6 @@ const cdecl; external av__format; function dc1394_init (): integer; cdecl; external av__format; - {$ENDIF} function strstart(str: pchar; val: pchar; ptr: PPointer): integer; cdecl; external av__format; @@ -610,21 +663,24 @@ const implementation -procedure av_init_packet (pkt: PAVPacket); +procedure av_init_packet (var pkt: TAVPacket); (* CAT#2 + bug fix *) begin - pkt.pts := AV_NOPTS_VALUE; - pkt.dts := AV_NOPTS_VALUE; - pkt.pos := -1; - pkt.duration := 0; - pkt.flags := 0; - pkt.stream_index := 0; - pkt.destruct := @av_destruct_packet_nofree; + with pkt do begin + pts := AV_NOPTS_VALUE; + dts := AV_NOPTS_VALUE; + pos := -1; + duration := 0; + flags := 0; + stream_index := 0; + destruct := @av_destruct_packet_nofree + end end; -procedure av_free_packet (pkt: PAVPacket); +procedure av_free_packet (var pkt: TAVPacket); (* CAT#2 *) begin - if (pkt <> nil) and (@pkt^.destruct <> nil) then - pkt^.destruct (pkt); + if @pkt.destruct <> nil then pkt.destruct (@pkt) +{ if (pkt <> nil) and (@pkt^.destruct <> nil) then + pkt^.destruct (pkt)} end; end. |