tcextract(1) [debian man page]
tcextract(1) General Commands Manual tcextract(1) NAME
tcextract - read multimedia file from medium, extract or demultiplex requested stream and print to standard output SYNOPSIS
tcextract -i name [ -x codec ] [ -t magic ] [ -a track ] [ -C s-e ] [ -d verbosity ] [ -v ] COPYRIGHT
tcextract is Copyright (C) by Thomas Oestreich. DESCRIPTION
tcextract is part of and usually called by transcode. However, it can also be used independently. tcextract reads source (from stdin if not explicitely defined) and prints on the standard output. OPTIONS
-i name Specify input source. If ommited, stdin is assumed. tcextract reads streams from file or from stdin. -C s-e extract and print out only this frame interval (video) or bytes (audio) [all]. This option is only supported if the source contains proper information to perform a selective extraction. -t magic source file magic. This option is used to identify the source file format if reading is performed from stdin or tcextract fails to identify the source file format. Supported formats are labeled with magic: avi RIFF AVI-file vob MPEG program streams m2v MPEG elementary video stream vdr MPEG digital video recording raw raw bitstream wav RIFF WAVE audio yuv4mpeg mjpeg-tools stream header format -x codec source pdeudo-codec, if not detected when reading from stdin. Currently, supported parameter for codec are mp3 MPEG audio ac3 AC3 audio a52 A52 audio dv Digital Video DV mpeg2 MPEG video yv12 Y'CbCr YUV rgb RGB 24-bit ps1 MPEG private stream (subtitles) pcm raw audio stream -a track extract selected audio or video track from source. -d level With this option you can specify a bitmask to enable different levels of verbosity (if supported). You can combine several levels by adding the corresponding values: QUIET 0 INFO 1 DEBUG 2 STATS 4 WATCH 8 FLIST 16 VIDCORE 32 SYNC 64 COUNTER 128 PRIVATE 256 -v Print version information and exit. NOTES
tcextract is a front end for extracting various raw or encoded audio/video tracks from a source and is used in transcode's import pipeline. EXAMPLES
The command tcextract -i foo.avi -x mp3 -a 3 extracts MPEG audio track 3 from the AVI-file foo.avi and prints the bitstream to stdout. AUTHORS
tcextract was written by Thomas Oestreich <ostreich@theorie.physik.uni-goettingen.de> with contributions from many others. See AUTHORS for details. SEE ALSO
avifix(1), avisync(1), avimerge(1), avisplit(1), tcprobe(1), tcscan(1), tccat(1), tcdemux(1), tcextract(1), tcdecode(1), transcode(1) tcextract(1) 26th November 2002 tcextract(1)
Check Out this Related Man Page
tcdemux(1) General Commands Manual tcdemux(1) NAME
tcdemux - demultiplex a program stream SYNOPSIS
tcdemux -i name [ -t magic ] [ -x codec ] [ -S unit,[s1-s2] ] [ -a ach,[vch] ] [ -s 0xnn ] [ -M mode ] [ -f fps ] [ -W ] [ -O ] [ -P name ] [ -A n[,m[,...]] ] [ -d verbosity ] [ -v ] COPYRIGHT
tcdemux is Copyright (C) by Thomas Oestreich. DESCRIPTION
tcdemux is part of and usually called by transcode. However, it can also be used independently. tcdemux reads source (from stdin if not explicitely defined) and prints on the standard output. OPTIONS
-i name Specify input source. If ommited, stdin is assumed. -x codec Process only packets containing given codec as payload. Examples are "mpeg2" for MPEG video or "ac3" for audio packets. -t magic Specify the input file type magic. Useful for using tcdemux in pipelines. This is normally autodetected. -a ach[,vch] Process only packets containing given audio track ach and video track vch. Most program stream feature multiple audio tracks but only a single video stream. Default is "-a 0,0". -s 0xnn Select specific multimedia track using the standard identifier 0xnn. This useful to extract subtitle packets. -f fps Specify the frame rate fps for subtitle meta information used by external applications. -S unit[,s1-s2] Select a program unit unit and a selected GOP range s1-s2 for processing. A unit is usually a set of GOPs that need to be synchro- nized at the very beginning. This option can be used to eleminate junk units at the beginning of the main presentation or to select certain episodes of a TV series from a DVD. A GOP is a logical unit to be properly decoded, i.e., decoding can only start at the beginning of a GOP. -O Do not skip initial sequence. Used internally by transcode. -A n[,m[,...]] Select packets using an identifier for extracting only selected streams without processing. This is useful for size reduction of your multimedia stream. Example: tcdemux -i big_dvd.vob -A 0xe0,0x81,0x20 > small_dvd.vob extracts all packets for the video stream, AC3 audio track (1) and the first subtitle stream (0). -M mode Select synchronization strategy mode. This is how transcode selects the beginning of a video and audio stream to assure both streams are sychronized for further processing: 0 no synchronization. Packets are printed directly to stdout. 1 synchronization based on PTS information found in the packet header. Audio packets are delayed until a suitable starting point is found. Default for PAL videos. 2 NTSC adapted synchronization mode. Detailed information for each GOP contained in the video stream are piped to a stdout to be processed by the certain import modules. This enables adjusting the frame rate or inverse telecine, if necessary. 3 more advanced synchronization mode 1 with msec granular adjustment. Details delegated to transcode. 4 more advanced synchronization mode 2 with msec granular adjustment for NTSC materail. Details delegated to transcode. 5-7 undocumented debugging modes for internal use. -P file Write GOP meta information to file instead of tdout. -W Print a navigation log file for a given video stream to stdout. This is used for transcode's "psu mode" and "cluster mode". -d level With this option you can specify a bitmask to enable different levels of verbosity (if supported). You can combine several levels by adding the corresponding values: QUIET 0 INFO 1 DEBUG 2 STATS 4 WATCH 8 FLIST 16 VIDCORE 32 SYNC 64 COUNTER 128 PRIVATE 256 -v Print version information and exit. NOTES
tcdemux is a front end for de-multiplexing program streams and is used in transcode's import modules. EXAMPLES
The command tcprobe -i movie.vob -x mpeg2 extracts only MPEG video packets. Further processing, i.e., extracting the elementary video stream is done by tcextract. AUTHORS
tcdemux was written by Thomas Oestreich <ostreich@theorie.physik.uni-goettingen.de> with contributions from many others. See AUTHORS for details. SEE ALSO
avifix(1), avimerge(1), avisplit(1), tcdecode(1), tcdemux(1), tcextract(1), tccat(1), tcscan(1), transcode(1) tcdemux(1) 09th January 2003 tcdemux(1)