Difference between revisions of "Documentation:Modules/avcodec"
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(Add deprecated option "avcodec-vismv") |
(Remove range values for floats. src/misc/variables.c simply bounds floats as -FLT_MAX and FLT_MAX. If and when the implementation differs, this page would be incorrect) |
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| Line 34: | Line 34: | ||
{{Option|name=sout-avcodec-pre-me|value=boolean|description=Pre-motion estimation|default=disabled}} | {{Option|name=sout-avcodec-pre-me|value=boolean|description=Pre-motion estimation|default=disabled}} | ||
{{Option|name=sout-avcodec-rc-buffer-size|value=integer|description=Rate control buffer size}} | {{Option|name=sout-avcodec-rc-buffer-size|value=integer|description=Rate control buffer size}} | ||
| − | {{Option|name=sout-avcodec-rc-buffer-aggressivity|value=float | + | {{Option|name=sout-avcodec-rc-buffer-aggressivity|value=float|description=Rate control buffer aggressiveness}} |
| − | {{Option|name=sout-avcodec-i-quant-factor|value=float | + | {{Option|name=sout-avcodec-i-quant-factor|value=float|description=I quantization factor}} |
{{Option|name=sout-avcodec-noise-reduction|value=integer|description=Noise reduction}} | {{Option|name=sout-avcodec-noise-reduction|value=integer|description=Noise reduction}} | ||
{{Option|name=sout-avcodec-mpeg4-matrix|value=boolean|description=MPEG4 quantization matrix|default=disabled}} | {{Option|name=sout-avcodec-mpeg4-matrix|value=boolean|description=MPEG4 quantization matrix|default=disabled}} | ||
| Line 41: | Line 41: | ||
{{Option|name=sout-avcodec-qmax|value=integer|description=Maximum video quantizer scale}} | {{Option|name=sout-avcodec-qmax|value=integer|description=Maximum video quantizer scale}} | ||
{{Option|name=sout-avcodec-trellis|value=boolean|description=Trellis quantization|default=disabled}} | {{Option|name=sout-avcodec-trellis|value=boolean|description=Trellis quantization|default=disabled}} | ||
| − | {{Option|name=sout-avcodec-qscale|value=float | + | {{Option|name=sout-avcodec-qscale|value=float|description=Fixed quantizer scale}} |
{{Option|name=sout-avcodec-strict|value=integer|min=-2|max=2|description=Strict standard compliance}} | {{Option|name=sout-avcodec-strict|value=integer|min=-2|max=2|description=Strict standard compliance}} | ||
| − | {{Option|name=sout-avcodec-lumi-masking|value=float | + | {{Option|name=sout-avcodec-lumi-masking|value=float|description=Luminance masking}} |
| − | {{Option|name=sout-avcodec-dark-masking|value=float | + | {{Option|name=sout-avcodec-dark-masking|value=float|description=Darkness masking}} |
| − | {{Option|name=sout-avcodec-p-masking|value=float | + | {{Option|name=sout-avcodec-p-masking|value=float|description=Motion masking}} |
| − | {{Option|name=sout-avcodec-border-masking|value=float | + | {{Option|name=sout-avcodec-border-masking|value=float|description=Border masking}} |
{{Option|name=sout-avcodec-luma-elim-threshold|value=integer|description=Luminance elimination}} | {{Option|name=sout-avcodec-luma-elim-threshold|value=integer|description=Luminance elimination}} | ||
{{Option|name=sout-avcodec-chroma-elim-threshold|value=integer|description=Chrominance elimination}} | {{Option|name=sout-avcodec-chroma-elim-threshold|value=integer|description=Chrominance elimination}} | ||
Revision as of 04:24, 26 March 2019
| Module: avcodec | |
|---|---|
| Type | codec library |
| First VLC version | - |
| Last VLC version | - |
| Operating system(s) | all |
| Description | Various audio and video decoders/encoders delivered by the FFmpeg library. This includes (MS)MPEG4, DivX, SVQ1, H261, H263, H264, WMV, WMA, AAC, AMR, DV, MJPEG and other codecs |
| Shortcut(s) | - |
libavcodec provided by the FFmpeg project. A full list of supported codecs may be found with modules/codec/avcodec/fourcc.c
Options prefixed with ffmpeg- or sout-ffmpeg- were deprecated in 2.1.0 to reflect the new module name avcodec. The only option that seems not to have been replaced later is --avcodec-vismv, removed in 3.0.0.
Options as of 3.0.6:
Decoding
- avcodec-dr <boolean> : Direct rendering default value: enabled
- avcodec-corrupted <boolean> : Show corrupted frames default value: enabled
- avcodec-error-resilience <integer> : Error resilience
- avcodec-workaround-bugs <integer> : Workaround bugs
- avcodec-hurry-up <boolean> : Hurry up default value: enabled
- avcodec-skip-frame <integer> {-1 (None), 0 (Default), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)} : Skip frame default value: 0
- avcodec-skip-idct <integer> {-1 (None), 0 (Default), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)} : Skip IDCT default value: 0
- avcodec-fast <boolean> : Allow speed tricks default value: disabled
- avcodec-skiploopfilter <integer> {0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)} : Skip the loop filter for H.264 decoding)
- avcodec-debug <integer> : Debug mask
- avcodec-codec <string> : Codec name
- avcodec-hw <integer> {any,vdpau_avcodec,vaapi,vaapi_drm,none} : Hardware decoding
- avcodec-threads <integer> : Threads
- avcodec-options <string> : Advanced options
Encoding
- sout-avcodec-codec <string> : Codec name
- sout-avcodec-hq <string> {rd,bits,simple} : Quality level
- sout-avcodec-keyint <integer> : Ratio of key frames
- sout-avcodec-bframes <integer> : Ratio of B frames
- sout-avcodec-hurry-up <boolean> : Hurry up default value: disabled
- sout-avcodec-interlace <boolean> : Interlaced encoding default value: disabled
- sout-avcodec-interlace-me <boolean> : Interlaced motion estimation default value: enabled
- sout-avcodec-vt <integer> : Video bitrate tolerance
- sout-avcodec-pre-me <boolean> : Pre-motion estimation default value: disabled
- sout-avcodec-rc-buffer-size <integer> : Rate control buffer size
- sout-avcodec-rc-buffer-aggressivity <float> : Rate control buffer aggressiveness
- sout-avcodec-i-quant-factor <float> : I quantization factor
- sout-avcodec-noise-reduction <integer> : Noise reduction
- sout-avcodec-mpeg4-matrix <boolean> : MPEG4 quantization matrix default value: disabled
- sout-avcodec-qmin <integer> : Minimum video quantizer scale
- sout-avcodec-qmax <integer> : Maximum video quantizer scale
- sout-avcodec-trellis <boolean> : Trellis quantization default value: disabled
- sout-avcodec-qscale <float> : Fixed quantizer scale
- sout-avcodec-strict <integer [-2 .. 2]> : Strict standard compliance
- sout-avcodec-lumi-masking <float> : Luminance masking
- sout-avcodec-dark-masking <float> : Darkness masking
- sout-avcodec-p-masking <float> : Motion masking
- sout-avcodec-border-masking <float> : Border masking
- sout-avcodec-luma-elim-threshold <integer> : Luminance elimination
- sout-avcodec-chroma-elim-threshold <integer> : Chrominance elimination
- sout-avcodec-aac-profile <string> : Specify AAC audio profile to use
- sout-avcodec-options <string> : Advanced options
Source code
- (folder)
- modules/codec/avcodec/avcodec.c (main file)
This page is part of official VLC media player Documentation (User Guide • Streaming HowTo • Hacker Guide • Modules)
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Please read the Documentation Editing Guidelines before you edit the documentation
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
