Linux Video Stream Processing Tool

From 884c8093d63402a1ad0b502244b791e3c6782be3 Mon Sep 17 00:00:00 2001 From: Michele Calgaro Date: Fri, 11 Sep 2020 14:38:47 +0900 Subject: Added debian extra dependency packages. Signed-off-by: Michele Calgaro --- .../transcode/transcode-1.1.7/docs/html/intro.html | 206 +++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 debian/transcode/transcode-1.1.7/docs/html/intro.html (limited to 'debian/transcode/transcode-1.1.7/docs/html/intro.html') diff --git a/debian/transcode/transcode-1.1.7/docs/html/intro.html b/debian/transcode/transcode-1.1.7/docs/html/intro.html new file mode 100644 index 00000000..856192ed --- /dev/null +++ b/debian/transcode/transcode-1.1.7/docs/html/intro.html @@ -0,0 +1,206 @@ + + + Linux Video Stream Processing Tool - Examples + + + + + + + + + +

+ + + + + + +

Introduction: +

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+ + + + +

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Overview: +

+ + transcode +is a linux text-console utility for video stream processing, +running on a platform that supports shared libraries and threads. +Decoding and encoding is done by loading modules that are responsible +for feeding transcode with raw video/audio streams (import modules) +and encoding the frames (export modules). It supports elementary video +and audio frame transformations, including de-interlacing +or fast resizing of video frames and loading of external filters. +A number of modules are included to enable import of DVDs on-the-fly, +MPEG elementary (ES) or program streams (VOB), MPEG video, +Digital Video (DV), +YUV4MPEG streams, NuppelVideo file format and raw or compressed (pass-through) video frames +and export modules for writing DivX;-), OpenDivX, DivX 4.xx or +uncompressed AVI files with MPEG, AC3 (pass-through) or PCM audio. +Additional export modules to write single frames (PPM) or +YUV4MPEG streams are available, as well as an interface import module + to the avifile library. +It's modular concept is intended to provide flexibility and easy user +extensibility to include other video/audio codecs or file types. +A set of tools is included to demux (tcdemux), extract (tcextract) and decode + (tcdecode) the sources +into raw video/audio streams for import, probing (tcprobe) and scanning (tcscan) your sources and to enable post-processing +of AVI files, fixing AVI file header information (avifix), merging multiple files (avimerge) or splitting +large AVI files (avisplit) to fit on a CD. +

+ + + transcode plug-in architecture overview:

+ transcode loads shared library modules that are responsible for feeding it with raw streams and encoding the frames. +

The import modules for audio/video decoding are loaded with + dlopen system call and are + responsible for starting the video and audio streams (directly or via the + popen system call) and have a single function interface to the main program. + The import is handled by a thread that buffers the video/audio frames.
+
The main program transcode currently performs + a number of video/audio frame manipulations (in + this order) or allows simple pass-through of raw frame data: +
+ + Video: +
- cut out arbitrary frame region before processing + +
- de-interlace video frame + +
- fast enlarging of video width/height by a + multiple of 8/16/32 rows/columns up to 1024x768 + +
- fast reduction of video width/height by a multiple of 8/16/32 rows/columns + +
- high-quality resizing with different filtering + +
- cut out arbitrary frame region for encoding + +
- fast rescale (down-sample) video width/height by a power of 2 + +
- flip video frame upside down + +
- mirror image of video frame + +
- swap red and blue bytes or chroma + components in video frame + +
- transform to b/w video frame + +
- apply gamma correction + +
- anti-alias video frame + +
- DVD subtitle overlay (plug-in) + +
+ +
+ Audio: +
- swap byte order in audio stream +
- change the volume of the audio stream +
- re-sample audio stream (plug-in) +
- down-sample to mono +
- down-sample to 8-bit unsigned byte stream +
- sync video with audio frames (V=0|A=N, V=1|A=N+1,...) +
+
+ + Filter Plug-Ins: +
- Additional effects are available via external filter plug-ins loaded with option "-J". +
+ + +
The export modules for audio/video encoding + are loaded via the dlopen system call and the + encoder loop is started for the selected frames. In + most cases audio and video are handled by the same + module. +

+ +

+ transcode supported formats and codecs overview:

+ + + + + + + + +
+ +
+ (ES=elementary stream, including + concatenated frames, PES=packetized elementary stream, + including program streams)
+

+ Colored boxes are supported without additional packages. However, most + capabilities are only available in the 0.6.0 pre-releases. +Unconnected boxes not yet implemented, but 0.6.0 (final) will + have a symmetrical butterfly structure. + OpenDivX + (obsolete) support included, but much newer and faster DIVX + encoding/decoding requires additional codecs available for linux. + Picture import supported by newer versions of ImageMagick + (0.5.x). Additional optional audio/video import codecs supported by using the + avifile library. Quicktime movie with limited codec + support is available via + the quicktime4linux library. You need libdv + installed to enable Digital Video decoding/encoding.

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+ + + + + + + + +Last modified: Fri Nov 29 15:45:16 Europe/Berlin 2002 + + + -- cgit v1.2.3