Documentation:Modules/avcodec - Revision history

DoesItReallyMatter: Replace IDCT with wikipedia:IDCT#DCT-III

2019-05-16T06:10:03Z

Replace IDCT with wikipedia:IDCT#DCT-III

← Older revision		Revision as of 06:10, 16 May 2019
Line 17:		Line 17:
	{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=The decoder can partially decode or skip frame(s) when there is not enough time. It's useful with low CPU power but it can produce distorted pictures}}		{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=The decoder can partially decode or skip frame(s) when there is not enough time. It's useful with low CPU power but it can produce distorted pictures}}
	{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[frame]]s to speed up decoding (-1=None, 0=Default, 1=[[B-frame]]s, 2=[[P-frame]]s, 3=B+P frames, 4=all frames)}}		{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[frame]]s to speed up decoding (-1=None, 0=Default, 1=[[B-frame]]s, 2=[[P-frame]]s, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[IDCT]] to speed up decoding for frame types (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}		{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[wikipedia:IDCT#DCT-III\|IDCT]] to speed up decoding for frame types (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow non specification compliant speedup tricks. Faster but error-prone}}		{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow non specification compliant speedup tricks. Faster but error-prone}}
	{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skipping the loop filter (aka deblocking) usually has a detrimental effect on quality. However it provides a big speedup for high definition streams}}		{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skipping the loop filter (aka deblocking) usually has a detrimental effect on quality. However it provides a big speedup for high definition streams}}

DoesItReallyMatter: I marked an inconsistency (+FIXME): we check LD and ELD in-code but do not advertise with ENC_PROFILE_LONGTEXT

2019-03-30T08:21:30Z

I marked an inconsistency (+FIXME): we check LD and ELD in-code but do not advertise with ENC_PROFILE_LONGTEXT

← Older revision		Revision as of 08:21, 30 March 2019
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	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 <code>--avcodec-vismv</code>, removed in 3.0.0.		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 <code>--avcodec-vismv</code>, removed in 3.0.0.

			The variable <var>ENC_PROFILE_LONGTEXT</var> [https://git.videolan.org/?p=vlc.git;a=blob;f=modules/codec/avcodec/avcodec.h;h=5e526a3b1cd61d9eb90d79223994c115c1ac35e1;hb=HEAD#l230 defined in modules/codec/avcodec/avcodec.h] does not mention [https://git.videolan.org/?p=vlc.git;a=blob;f=modules/codec/avcodec/encoder.c;h=2f8e2d8a145c2558f57c97787eba2af407ec6af3;hb=HEAD#l477 that it checks] for <code>ld</code> (Low Delay) and <code>eld</code> (Extended Low Delay). FIXME: Unclear whether they are actually supported.

	Options as of 3.0.6:		Options as of 3.0.6:

DoesItReallyMatter: /* Encoder */ Replace options help text with help longtext. Is this an improvement? It seems so, but the page is lengthy

2019-03-30T08:00:37Z

Encoder: Replace options help text with help longtext. Is this an improvement? It seems so, but the page is lengthy

DoesItReallyMatter: Add wikilinks

2019-03-30T07:31:59Z

Add wikilinks

DoesItReallyMatter: Replace options help text with help longtext. Is this an improvement? I'm not sure what is preferred by readers of this page

2019-03-30T00:15:41Z

Replace options help text with help longtext. Is this an improvement? I'm not sure what is preferred by readers of this page

DoesItReallyMatter: Add default options (from source code)

2019-03-29T23:54:03Z

Add default options (from source code)

DoesItReallyMatter: See also: Documentation:Modules/avformat

2019-03-26T05:03:30Z

← Older revision		Revision as of 05:03, 26 March 2019
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			{{See also\|Documentation:Modules/avformat}}
	{{Module\|name=avcodec\|type=codec library\|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}}		{{Module\|name=avcodec\|type=codec library\|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}}

DoesItReallyMatter: 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

2019-03-26T04:24:43Z

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

DoesItReallyMatter: Add deprecated option "avcodec-vismv"

2019-03-26T03:55:59Z

Add deprecated option "avcodec-vismv"

← Older revision		Revision as of 03:55, 26 March 2019
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	libavcodec provided by the [[FFmpeg]] project. A full list of [[supported]] codecs may be found with {{VLCSourceFile\|modules/codec/avcodec/fourcc.c}}		libavcodec provided by the [[FFmpeg]] project. A full list of [[supported]] codecs may be found with {{VLCSourceFile\|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 <code>--avcodec-vismv</code>, removed in 3.0.0.

	Options as of 3.0.6:		Options as of 3.0.6:

DoesItReallyMatter: SV1 seems to have been a typo for SVQ1. See talk

2019-03-05T06:57:05Z

SV1 seems to have been a typo for SVQ1. See talk

← Older revision		Revision as of 06:57, 5 March 2019
Line 1:		Line 1:
	{{Module\|name=avcodec\|type=codec library\|description=Various audio and video decoders/encoders delivered by the FFmpeg library. This includes (MS)[[MPEG4]], [[DivX]], [[~~SV1~~]], [[H261]], [[H263]], [[H264]], [[WMV]], [[WMA]], [[AAC]], [[AMR]], [[DV]], [[MJPEG]] and other codecs}}		{{Module\|name=avcodec\|type=codec library\|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}}

	libavcodec provided by the [[FFmpeg]] project. A full list of [[supported]] codecs may be found with {{VLCSourceFile\|modules/codec/avcodec/fourcc.c}}		libavcodec provided by the [[FFmpeg]] project. A full list of [[supported]] codecs may be found with {{VLCSourceFile\|modules/codec/avcodec/fourcc.c}}

← Older revision		Revision as of 06:10, 16 May 2019
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	{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=The decoder can partially decode or skip frame(s) when there is not enough time. It's useful with low CPU power but it can produce distorted pictures}}		{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=The decoder can partially decode or skip frame(s) when there is not enough time. It's useful with low CPU power but it can produce distorted pictures}}
	{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[frame]]s to speed up decoding (-1=None, 0=Default, 1=[[B-frame]]s, 2=[[P-frame]]s, 3=B+P frames, 4=all frames)}}		{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[frame]]s to speed up decoding (-1=None, 0=Default, 1=[[B-frame]]s, 2=[[P-frame]]s, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[IDCT]] to speed up decoding for frame types (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}		{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[wikipedia:IDCT#DCT-III\|IDCT]] to speed up decoding for frame types (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow non specification compliant speedup tricks. Faster but error-prone}}		{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow non specification compliant speedup tricks. Faster but error-prone}}
	{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skipping the loop filter (aka deblocking) usually has a detrimental effect on quality. However it provides a big speedup for high definition streams}}		{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skipping the loop filter (aka deblocking) usually has a detrimental effect on quality. However it provides a big speedup for high definition streams}}

← Older revision		Revision as of 08:00, 30 March 2019
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	== Encoding ==		== Encoding ==
	{{Option\|name=sout-avcodec-codec\|value=string\|default=NULL\|description=[[~~Codec~~]] name}}		{{Option\|name=sout-avcodec-codec\|value=string\|default=NULL\|description=Internal libavcodec [[codec]] name}}
	{{Option\|name=sout-avcodec-hq\|value=string\|select={rd,bits,simple}\|default=rd\|description=Quality level}}		{{Option\|name=sout-avcodec-hq\|value=string\|select={rd,bits,simple}\|default=rd\|description=Quality level for the encoding of motions vectors (this can slow down the encoding very much)}}
	{{Option\|name=sout-avcodec-keyint\|value=integer\|default=0\|description=~~Ratio~~ of key ~~frames~~}}		{{Option\|name=sout-avcodec-keyint\|value=integer\|default=0\|description=Number of frames that will be coded for one [[key frame]]}}
	{{Option\|name=sout-avcodec-bframes\|value=integer\|default=0\|description=~~Ratio~~ of B frames}}		{{Option\|name=sout-avcodec-bframes\|value=integer\|default=0\|description=Number of [[B-frame]]s that will be coded between two reference frames}}
	{{Option\|name=sout-avcodec-hurry-up\|value=boolean\|default=disabled\|description=~~Hurry~~ up}}		{{Option\|name=sout-avcodec-hurry-up\|value=boolean\|default=disabled\|description=The encoder can make on-the-fly quality tradeoffs if your CPU can't keep up with the encoding rate. It will disable trellis quantization, then the rate distortion of motion vectors (hq), and raise the noise reduction threshold to ease the encoder's task}}
	{{Option\|name=sout-avcodec-interlace\|value=boolean\|default=disabled\|description=[[~~Interlaced~~]] ~~encoding~~}}		{{Option\|name=sout-avcodec-interlace\|value=boolean\|default=disabled\|description=Enable dedicated
	{{Option\|name=sout-avcodec-interlace-me\|value=boolean\|default=enabled\|description=~~Interlaced~~ motion estimation}}		algorithms for [[interlaced]] frames}}
	{{Option\|name=sout-avcodec-vt\|value=integer\|default=0\|description=Video [[bitrate]] tolerance}}		{{Option\|name=sout-avcodec-interlace-me\|value=boolean\|default=enabled\|description=Enable interlaced motion estimation algorithms. This requires more CPU}}
	{{Option\|name=sout-avcodec-pre-me\|value=boolean\|default=disabled\|description=~~Pre~~-motion estimation}}		{{Option\|name=sout-avcodec-vt\|value=integer\|default=0\|description=Video [[bitrate]] tolerance in kbit/s}}
	{{Option\|name=sout-avcodec-rc-buffer-size\|value=integer\|default=0\|description=Rate control buffer size}}		{{Option\|name=sout-avcodec-pre-me\|value=boolean\|default=disabled\|description=Enable the pre-motion estimation algorithm}}
			{{Option\|name=sout-avcodec-rc-buffer-size\|value=integer\|default=0\|description=Rate control buffer size (in kbytes). A bigger buffer will allow for better rate control, but will cause a delay in the stream}}
	{{Option\|name=sout-avcodec-rc-buffer-aggressivity\|value=float\|default=1.0\|description=Rate control buffer aggressiveness}}		{{Option\|name=sout-avcodec-rc-buffer-aggressivity\|value=float\|default=1.0\|description=Rate control buffer aggressiveness}}
	{{Option\|name=sout-avcodec-i-quant-factor\|value=float\|default=0\|description=I ~~quantization factor~~}}		{{Option\|name=sout-avcodec-i-quant-factor\|value=float\|default=0\|description=Quantization factor of [[I-frame]]s, compared with [[P-frame]]s (for instance 1.0 => same qscale for I and P frames)}}
	{{Option\|name=sout-avcodec-noise-reduction\|value=integer\|default=0\|description=~~Noise~~ reduction}}		{{Option\|name=sout-avcodec-noise-reduction\|value=integer\|default=0\|description=Enable a simple noise reduction algorithm to lower the encoding length and bitrate, at the expense of lower quality frames}}
	{{Option\|name=sout-avcodec-mpeg4-matrix\|value=boolean\|default=disabled\|description=[[MPEG-4]] quantization matrix}}		{{Option\|name=sout-avcodec-mpeg4-matrix\|value=boolean\|default=disabled\|description=Use the [[MPEG-4]] quantization matrix for [[MPEG-2]] encoding. This generally yields a better looking picture, while still retaining the compatibility with standard MPEG-2 decoders}}
	{{Option\|name=sout-avcodec-qmin\|value=integer\|default=0\|description=Minimum video quantizer scale}}		{{Option\|name=sout-avcodec-qmin\|value=integer\|default=0\|description=Minimum video quantizer scale}}
	{{Option\|name=sout-avcodec-qmax\|value=integer\|default=0\|description=Maximum video quantizer scale}}		{{Option\|name=sout-avcodec-qmax\|value=integer\|default=0\|description=Maximum video quantizer scale}}
	{{Option\|name=sout-avcodec-trellis\|value=boolean\|default=disabled\|description=~~Trellis~~ quantization}}		{{Option\|name=sout-avcodec-trellis\|value=boolean\|default=disabled\|description=Enable trellis quantization (rate distortion for block coefficients)}}
	{{Option\|name=sout-avcodec-qscale\|value=float\|default=3\|description=~~Fixed~~ quantizer scale}}		{{Option\|name=sout-avcodec-qscale\|value=float\|min=0.01\|max=255.0\|default=3\|description=A fixed video quantizer scale for [[VBR]] encoding (accepted values: 0.01 to 255.0)}}
	{{Option\|name=sout-avcodec-strict\|value=integer\|min=-2\|max=2\|default=0\|description=~~Strict~~ standard compliance}}		{{Option\|name=sout-avcodec-strict\|value=integer\|min=-2\|max=2\|default=0\|description=Force a strict standard compliance when encoding (accepted values: -2 to 2)}}
	{{Option\|name=sout-avcodec-lumi-masking\|value=float\|default=0.0\|description=~~Luminance masking~~}}		{{Option\|name=sout-avcodec-lumi-masking\|value=float\|default=0.0\|description=Raise the quantizer for very bright macroblocks}}
	{{Option\|name=sout-avcodec-dark-masking\|value=float\|default=0.0\|description=~~Darkness masking~~}}		{{Option\|name=sout-avcodec-dark-masking\|value=float\|default=0.0\|description=Raise the quantizer for very dark macroblocks}}
	{{Option\|name=sout-avcodec-p-masking\|value=float\|default=0.0\|description=~~Motion masking~~}}		{{Option\|name=sout-avcodec-p-masking\|value=float\|default=0.0\|description=Raise the quantizer for macroblocks with a high temporal complexity}}
	{{Option\|name=sout-avcodec-border-masking\|value=float\|default=0.0\|description=~~Border masking~~}}		{{Option\|name=sout-avcodec-border-masking\|value=float\|default=0.0\|description=Raise the quantizer for macroblocks at the border of the frame}}
	{{Option\|name=sout-avcodec-luma-elim-threshold\|value=integer\|default=0\|description=~~Luminance elimination~~}}		{{Option\|name=sout-avcodec-luma-elim-threshold\|value=integer\|default=0\|description=Eliminates luminance blocks when the PSNR isn't much changed. The [[H.264]] specification recommends -4}}
	{{Option\|name=sout-avcodec-chroma-elim-threshold\|value=integer\|default=0\|description=~~Chrominance elimination~~}}		{{Option\|name=sout-avcodec-chroma-elim-threshold\|value=integer\|default=0\|description=Eliminates chrominance blocks when the PSNR isn't much changed. The [[H.264]] specification recommends 7}}
	{{Option\|name=sout-avcodec-aac-profile\|value=string\|default=low\|description=Specify [[AAC]] audio profile to use}}		{{Option\|name=sout-avcodec-aac-profile\|value=string\|default=low\|description=Specify the [[AAC]] audio profile to use for encoding the audio bitstream. It takes the following options: main, low, ssr (not supported), ltp, hev1, hev2. hev1 and hev2 are currently supported only with libfdk-aac enabled libavcodec}}
	{{Option\|name=sout-avcodec-options\|value=string\|default=NULL\|description=Advanced options}}		{{Option\|name=sout-avcodec-options\|value=string\|default=NULL\|description=Advanced options, in the form <code>{opt=val,opt2=val2}</code>}}

	== Source code ==		== Source code ==

← Older revision		Revision as of 07:31, 30 March 2019
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	{{Option\|name=avcodec-workaround-bugs\|value=integer\|default=1\|description=Try to fix some bugs: 1 autodetect, 2 old msmpeg4, 4 xvid interlaced, 8 ump4, 16 no padding, 32 ac vlc, 64 Qpel chroma. This must be the sum of the values. For example, to fix "ac vlc" and "ump4", enter 40.)}}		{{Option\|name=avcodec-workaround-bugs\|value=integer\|default=1\|description=Try to fix some bugs: 1 autodetect, 2 old msmpeg4, 4 xvid interlaced, 8 ump4, 16 no padding, 32 ac vlc, 64 Qpel chroma. This must be the sum of the values. For example, to fix "ac vlc" and "ump4", enter 40.)}}
	{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=The decoder can partially decode or skip frame(s) when there is not enough time. It's useful with low CPU power but it can produce distorted pictures}}		{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=The decoder can partially decode or skip frame(s) when there is not enough time. It's useful with low CPU power but it can produce distorted pictures}}
	{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of ~~frames~~ to speed up decoding (-1=None, 0=Default, 1=B-~~frames~~, 2=P-~~frames~~, 3=B+P frames, 4=all frames)}}		{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[frame]]s to speed up decoding (-1=None, 0=Default, 1=[[B-frame]]s, 2=[[P-frame]]s, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[IDCT]] to speed up decoding for frame types (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}		{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[IDCT]] to speed up decoding for frame types (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow non specification compliant speedup tricks. Faster but error-prone}}		{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow non specification compliant speedup tricks. Faster but error-prone}}
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	== Encoding ==		== Encoding ==
	{{Option\|name=sout-avcodec-codec\|value=string\|default=NULL\|description=Codec name}}		{{Option\|name=sout-avcodec-codec\|value=string\|default=NULL\|description=[[Codec]] name}}
	{{Option\|name=sout-avcodec-hq\|value=string\|select={rd,bits,simple}\|default=rd\|description=Quality level}}		{{Option\|name=sout-avcodec-hq\|value=string\|select={rd,bits,simple}\|default=rd\|description=Quality level}}
	{{Option\|name=sout-avcodec-keyint\|value=integer\|default=0\|description=Ratio of key frames}}		{{Option\|name=sout-avcodec-keyint\|value=integer\|default=0\|description=Ratio of key frames}}
	{{Option\|name=sout-avcodec-bframes\|value=integer\|default=0\|description=Ratio of B frames}}		{{Option\|name=sout-avcodec-bframes\|value=integer\|default=0\|description=Ratio of B frames}}
	{{Option\|name=sout-avcodec-hurry-up\|value=boolean\|default=disabled\|description=Hurry up}}		{{Option\|name=sout-avcodec-hurry-up\|value=boolean\|default=disabled\|description=Hurry up}}
	{{Option\|name=sout-avcodec-interlace\|value=boolean\|default=disabled\|description=Interlaced encoding}}		{{Option\|name=sout-avcodec-interlace\|value=boolean\|default=disabled\|description=[[Interlaced]] encoding}}
	{{Option\|name=sout-avcodec-interlace-me\|value=boolean\|default=enabled\|description=Interlaced motion estimation}}		{{Option\|name=sout-avcodec-interlace-me\|value=boolean\|default=enabled\|description=Interlaced motion estimation}}
	{{Option\|name=sout-avcodec-vt\|value=integer\|default=0\|description=Video bitrate tolerance}}		{{Option\|name=sout-avcodec-vt\|value=integer\|default=0\|description=Video [[bitrate]] tolerance}}
	{{Option\|name=sout-avcodec-pre-me\|value=boolean\|default=disabled\|description=Pre-motion estimation}}		{{Option\|name=sout-avcodec-pre-me\|value=boolean\|default=disabled\|description=Pre-motion estimation}}
	{{Option\|name=sout-avcodec-rc-buffer-size\|value=integer\|default=0\|description=Rate control buffer size}}		{{Option\|name=sout-avcodec-rc-buffer-size\|value=integer\|default=0\|description=Rate control buffer size}}
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	{{Option\|name=sout-avcodec-i-quant-factor\|value=float\|default=0\|description=I quantization factor}}		{{Option\|name=sout-avcodec-i-quant-factor\|value=float\|default=0\|description=I quantization factor}}
	{{Option\|name=sout-avcodec-noise-reduction\|value=integer\|default=0\|description=Noise reduction}}		{{Option\|name=sout-avcodec-noise-reduction\|value=integer\|default=0\|description=Noise reduction}}
	{{Option\|name=sout-avcodec-mpeg4-matrix\|value=boolean\|default=disabled\|description=~~MPEG4~~ quantization matrix}}		{{Option\|name=sout-avcodec-mpeg4-matrix\|value=boolean\|default=disabled\|description=[[MPEG-4]] quantization matrix}}
	{{Option\|name=sout-avcodec-qmin\|value=integer\|default=0\|description=Minimum video quantizer scale}}		{{Option\|name=sout-avcodec-qmin\|value=integer\|default=0\|description=Minimum video quantizer scale}}
	{{Option\|name=sout-avcodec-qmax\|value=integer\|default=0\|description=Maximum video quantizer scale}}		{{Option\|name=sout-avcodec-qmax\|value=integer\|default=0\|description=Maximum video quantizer scale}}
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	{{Option\|name=sout-avcodec-luma-elim-threshold\|value=integer\|default=0\|description=Luminance elimination}}		{{Option\|name=sout-avcodec-luma-elim-threshold\|value=integer\|default=0\|description=Luminance elimination}}
	{{Option\|name=sout-avcodec-chroma-elim-threshold\|value=integer\|default=0\|description=Chrominance elimination}}		{{Option\|name=sout-avcodec-chroma-elim-threshold\|value=integer\|default=0\|description=Chrominance elimination}}
	{{Option\|name=sout-avcodec-aac-profile\|value=string\|default=low\|description=Specify AAC audio profile to use}}		{{Option\|name=sout-avcodec-aac-profile\|value=string\|default=low\|description=Specify [[AAC]] audio profile to use}}
	{{Option\|name=sout-avcodec-options\|value=string\|default=NULL\|description=Advanced options}}		{{Option\|name=sout-avcodec-options\|value=string\|default=NULL\|description=Advanced options}}

← Older revision		Revision as of 00:15, 30 March 2019
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	== Decoding ==		== Decoding ==
	{{Option\|name=avcodec-dr\|value=boolean\|default=enabled\|description=Direct rendering}}		{{Option\|name=avcodec-dr\|value=boolean\|default=enabled\|description=Direct rendering}}
	{{Option\|name=avcodec-corrupted\|value=boolean\|default=enabled\|description=~~Show corrupted~~ frames}}		{{Option\|name=avcodec-corrupted\|value=boolean\|default=enabled\|description=Prefer visual artifacts instead of missing frames}}
	{{Option\|name=avcodec-error-resilience\|value=integer\|default=1\|description=~~Error~~ resilience}}		{{Option\|name=avcodec-error-resilience\|value=integer\|min=0\|max=4\|default=1\|description=libavcodec can do error resilience. However, with a buggy encoder (such as the ISO MPEG-4 encoder from M$) this can produce a lot of errors. Valid values range from 0 to 4 (0 disables all errors resilience)}}
	{{Option\|name=avcodec-workaround-bugs\|value=integer\|default=1\|description=~~Workaround~~ bugs}}		{{Option\|name=avcodec-workaround-bugs\|value=integer\|default=1\|description=Try to fix some bugs: 1 autodetect, 2 old msmpeg4, 4 xvid interlaced, 8 ump4, 16 no padding, 32 ac vlc, 64 Qpel chroma. This must be the sum of the values. For example, to fix "ac vlc" and "ump4", enter 40.)}}
	{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=~~Hurry up~~}}		{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=The decoder can partially decode or skip frame(s) when there is not enough time. It's useful with low CPU power but it can produce distorted pictures}}
	{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1 ~~(None)~~, 0 ~~(Default)~~, 1 ~~(Non-ref)~~, 2 ~~(Bidir)~~, 3 ~~(Non-key)~~, 4 ~~(All)~~}\|default=0\|description=~~Skip frame~~}}		{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of frames to speed up decoding (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1 ~~(None)~~, 0 ~~(Default)~~, 1 ~~(Non-ref)~~, 2 ~~(Bidir)~~, 3 ~~(Non-key)~~, 4 ~~(All)~~}\|default=0\|description=~~Skip~~ [[IDCT]]}}		{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1,0,1,2,3,4}\|default=0\|description=Force skipping of [[IDCT]] to speed up decoding for frame types (-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)}}
	{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow ~~speed~~ tricks}}		{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow non specification compliant speedup tricks. Faster but error-prone}}
	{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=~~Skip~~ the loop filter for ~~H.264 decoding)~~}}		{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skipping the loop filter (aka deblocking) usually has a detrimental effect on quality. However it provides a big speedup for high definition streams}}
	{{Option\|name=avcodec-debug\|value=integer\|default=0\|description=~~Debug~~ mask}}		{{Option\|name=avcodec-debug\|value=integer\|default=0\|description=Set FFmpeg debug mask}}
	{{Option\|name=avcodec-codec\|value=string\|default=NULL\|description=~~Codec~~ name}}		{{Option\|name=avcodec-codec\|value=string\|default=NULL\|description=Internal libavcodec codec name}}
	{{Option\|name=avcodec-hw\|value=integer\|select={any,vdpau_avcodec,vaapi,vaapi_drm,none}\|default=any\|description=~~Hardware~~ decoding}}		{{Option\|name=avcodec-hw\|value=integer\|select={any,vdpau_avcodec,vaapi,vaapi_drm,none}\|default=any\|description=This allows hardware decoding when available}}
	{{Option\|name=avcodec-threads\|value=integer\|default=0\|description=~~Threads~~}}		{{Option\|name=avcodec-threads\|value=integer\|default=0\|description=Number of threads used for decoding, 0 meaning auto}}
	{{Option\|name=avcodec-options\|value=string\|default=NULL\|description=Advanced options}}		{{Option\|name=avcodec-options\|value=string\|default=NULL\|description=Advanced options, in the form <code>{opt=val,opt2=val2}</code>}}

	== Encoding ==		== Encoding ==

← Older revision		Revision as of 23:54, 29 March 2019
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	== Decoding ==		== Decoding ==
	{{Option\|name=avcodec-dr\|value=boolean\|description=Direct rendering~~\|default=enabled~~}}		{{Option\|name=avcodec-dr\|value=boolean\|default=enabled\|description=Direct rendering}}
	{{Option\|name=avcodec-corrupted\|value=boolean\|description=Show corrupted frames~~\|default=enabled~~}}		{{Option\|name=avcodec-corrupted\|value=boolean\|default=enabled\|description=Show corrupted frames}}
	{{Option\|name=avcodec-error-resilience\|value=integer\|description=Error resilience}}		{{Option\|name=avcodec-error-resilience\|value=integer\|default=1\|description=Error resilience}}
	{{Option\|name=avcodec-workaround-bugs\|value=integer\|description=Workaround bugs}}		{{Option\|name=avcodec-workaround-bugs\|value=integer\|default=1\|description=Workaround bugs}}
	{{Option\|name=avcodec-hurry-up\|value=boolean\|description=Hurry up~~\|default=enabled~~}}		{{Option\|name=avcodec-hurry-up\|value=boolean\|default=enabled\|description=Hurry up}}
	{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1 (None), 0 (Default), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|description=Skip frame~~\|default=0~~}}		{{Option\|name=avcodec-skip-frame\|value=integer\|select={-1 (None), 0 (Default), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skip frame}}
	{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1 (None), 0 (Default), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|description=Skip [[IDCT]]~~\|default=0~~}}		{{Option\|name=avcodec-skip-idct\|value=integer\|select={-1 (None), 0 (Default), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skip [[IDCT]]}}
	{{Option\|name=avcodec-fast\|value=boolean\|description=Allow speed tricks~~\|default=disabled~~}}		{{Option\|name=avcodec-fast\|value=boolean\|default=disabled\|description=Allow speed tricks}}
	{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|description=Skip the loop filter for H.264 decoding)}}		{{Option\|name=avcodec-skiploopfilter\|value=integer\|select={0 (None), 1 (Non-ref), 2 (Bidir), 3 (Non-key), 4 (All)}\|default=0\|description=Skip the loop filter for H.264 decoding)}}
	{{Option\|name=avcodec-debug\|value=integer\|description=Debug mask}}		{{Option\|name=avcodec-debug\|value=integer\|default=0\|description=Debug mask}}
	{{Option\|name=avcodec-codec\|value=string\|description=Codec name}}		{{Option\|name=avcodec-codec\|value=string\|default=NULL\|description=Codec name}}
	{{Option\|name=avcodec-hw\|value=integer\|select={any,vdpau_avcodec,vaapi,vaapi_drm,none}\|description=Hardware decoding}}		{{Option\|name=avcodec-hw\|value=integer\|select={any,vdpau_avcodec,vaapi,vaapi_drm,none}\|default=any\|description=Hardware decoding}}
	{{Option\|name=avcodec-threads\|value=integer\|description=Threads}}		{{Option\|name=avcodec-threads\|value=integer\|default=0\|description=Threads}}
	{{Option\|name=avcodec-options\|value=string\|description=Advanced options}}		{{Option\|name=avcodec-options\|value=string\|default=NULL\|description=Advanced options}}

	== Encoding ==		== Encoding ==
	{{Option\|name=sout-avcodec-codec\|value=string\|description=Codec name}}		{{Option\|name=sout-avcodec-codec\|value=string\|default=NULL\|description=Codec name}}
	{{Option\|name=sout-avcodec-hq\|value=string\|select={rd,bits,simple}\|description=Quality level}}		{{Option\|name=sout-avcodec-hq\|value=string\|select={rd,bits,simple}\|default=rd\|description=Quality level}}
	{{Option\|name=sout-avcodec-keyint\|value=integer\|description=Ratio of key frames}}		{{Option\|name=sout-avcodec-keyint\|value=integer\|default=0\|description=Ratio of key frames}}
	{{Option\|name=sout-avcodec-bframes\|value=integer\|description=Ratio of B frames}}		{{Option\|name=sout-avcodec-bframes\|value=integer\|default=0\|description=Ratio of B frames}}
	{{Option\|name=sout-avcodec-hurry-up\|value=boolean\|description=Hurry up~~\|default=disabled~~}}		{{Option\|name=sout-avcodec-hurry-up\|value=boolean\|default=disabled\|description=Hurry up}}
	{{Option\|name=sout-avcodec-interlace\|value=boolean\|description=Interlaced encoding~~\|default=disabled~~}}		{{Option\|name=sout-avcodec-interlace\|value=boolean\|default=disabled\|description=Interlaced encoding}}
	{{Option\|name=sout-avcodec-interlace-me\|value=boolean\|description=Interlaced motion estimation~~\|default=enabled~~}}		{{Option\|name=sout-avcodec-interlace-me\|value=boolean\|default=enabled\|description=Interlaced motion estimation}}
	{{Option\|name=sout-avcodec-vt\|value=integer\|description=Video bitrate tolerance}}		{{Option\|name=sout-avcodec-vt\|value=integer\|default=0\|description=Video bitrate tolerance}}
	{{Option\|name=sout-avcodec-pre-me\|value=boolean\|description=Pre-motion estimation~~\|default=disabled~~}}		{{Option\|name=sout-avcodec-pre-me\|value=boolean\|default=disabled\|description=Pre-motion estimation}}
	{{Option\|name=sout-avcodec-rc-buffer-size\|value=integer\|description=Rate control buffer size}}		{{Option\|name=sout-avcodec-rc-buffer-size\|value=integer\|default=0\|description=Rate control buffer size}}
	{{Option\|name=sout-avcodec-rc-buffer-aggressivity\|value=float\|description=Rate control buffer aggressiveness}}		{{Option\|name=sout-avcodec-rc-buffer-aggressivity\|value=float\|default=1.0\|description=Rate control buffer aggressiveness}}
	{{Option\|name=sout-avcodec-i-quant-factor\|value=float\|description=I quantization factor}}		{{Option\|name=sout-avcodec-i-quant-factor\|value=float\|default=0\|description=I quantization factor}}
	{{Option\|name=sout-avcodec-noise-reduction\|value=integer\|description=Noise reduction}}		{{Option\|name=sout-avcodec-noise-reduction\|value=integer\|default=0\|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\|default=disabled\|description=MPEG4 quantization matrix}}
	{{Option\|name=sout-avcodec-qmin\|value=integer\|description=Minimum video quantizer scale}}		{{Option\|name=sout-avcodec-qmin\|value=integer\|default=0\|description=Minimum video quantizer scale}}
	{{Option\|name=sout-avcodec-qmax\|value=integer\|description=Maximum video quantizer scale}}		{{Option\|name=sout-avcodec-qmax\|value=integer\|default=0\|description=Maximum video quantizer scale}}
	{{Option\|name=sout-avcodec-trellis\|value=boolean\|description=Trellis quantization~~\|default=disabled~~}}		{{Option\|name=sout-avcodec-trellis\|value=boolean\|default=disabled\|description=Trellis quantization}}
	{{Option\|name=sout-avcodec-qscale\|value=float\|description=Fixed quantizer scale}}		{{Option\|name=sout-avcodec-qscale\|value=float\|default=3\|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\|default=0\|description=Strict standard compliance}}
	{{Option\|name=sout-avcodec-lumi-masking\|value=float\|description=Luminance masking}}		{{Option\|name=sout-avcodec-lumi-masking\|value=float\|default=0.0\|description=Luminance masking}}
	{{Option\|name=sout-avcodec-dark-masking\|value=float\|description=Darkness masking}}		{{Option\|name=sout-avcodec-dark-masking\|value=float\|default=0.0\|description=Darkness masking}}
	{{Option\|name=sout-avcodec-p-masking\|value=float\|description=Motion masking}}		{{Option\|name=sout-avcodec-p-masking\|value=float\|default=0.0\|description=Motion masking}}
	{{Option\|name=sout-avcodec-border-masking\|value=float\|description=Border masking}}		{{Option\|name=sout-avcodec-border-masking\|value=float\|default=0.0\|description=Border masking}}
	{{Option\|name=sout-avcodec-luma-elim-threshold\|value=integer\|description=Luminance elimination}}		{{Option\|name=sout-avcodec-luma-elim-threshold\|value=integer\|default=0\|description=Luminance elimination}}
	{{Option\|name=sout-avcodec-chroma-elim-threshold\|value=integer\|description=Chrominance elimination}}		{{Option\|name=sout-avcodec-chroma-elim-threshold\|value=integer\|default=0\|description=Chrominance elimination}}
	{{Option\|name=sout-avcodec-aac-profile\|value=string\|description=Specify AAC audio profile to use}}		{{Option\|name=sout-avcodec-aac-profile\|value=string\|default=low\|description=Specify AAC audio profile to use}}
	{{Option\|name=sout-avcodec-options\|value=string\|description=Advanced options}}		{{Option\|name=sout-avcodec-options\|value=string\|default=NULL\|description=Advanced options}}

	== Source code ==		== Source code ==

← Older revision		Revision as of 04:24, 26 March 2019
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	{{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~~\|min=-340282346638528859811704183484516925440.000000\|max=340282346638528859811704183484516925440.000000~~\|description=Rate control buffer aggressiveness}}		{{Option\|name=sout-avcodec-rc-buffer-aggressivity\|value=float\|description=Rate control buffer aggressiveness}}
	{{Option\|name=sout-avcodec-i-quant-factor\|value=float~~\|min=-340282346638528859811704183484516925440.000000\|max=340282346638528859811704183484516925440.000000~~\|description=I quantization factor}}		{{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~~\|min=-340282346638528859811704183484516925440.000000\|max=340282346638528859811704183484516925440.000000~~\|description=Fixed quantizer scale}}		{{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~~\|min=-340282346638528859811704183484516925440.000000\|max=340282346638528859811704183484516925440.000000~~\|description=Luminance masking}}		{{Option\|name=sout-avcodec-lumi-masking\|value=float\|description=Luminance masking}}
	{{Option\|name=sout-avcodec-dark-masking\|value=float~~\|min=-340282346638528859811704183484516925440.000000\|max=340282346638528859811704183484516925440.000000~~\|description=Darkness masking}}		{{Option\|name=sout-avcodec-dark-masking\|value=float\|description=Darkness masking}}
	{{Option\|name=sout-avcodec-p-masking\|value=float~~\|min=-340282346638528859811704183484516925440.000000\|max=340282346638528859811704183484516925440.000000~~\|description=Motion masking}}		{{Option\|name=sout-avcodec-p-masking\|value=float\|description=Motion masking}}
	{{Option\|name=sout-avcodec-border-masking\|value=float~~\|min=-340282346638528859811704183484516925440.000000\|max=340282346638528859811704183484516925440.000000~~\|description=Border masking}}		{{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}}