VPXDEC

NAME

vpxdec - VP8 and VP9 video decoding encoding tool

SYNOPSIS

vpxdec <options> -o dst_filename src_filename

OPTIONS

--codec=<arg>

Codec to use

--yv12

Output raw YV12 frames

--i420

Output raw I420 frames

--flipuv

Flip the chroma planes in the output

--rawvideo

Output raw YUV frames

--noblit

Don’t process the decoded frames

--progress

Show progress after each frame decodes

--limit=<arg>

Stop decoding after n frames

--skip=<arg>

Skip the first n input frames

--postproc

Postprocess decoded frames

--summary

Show timing summary

-o <arg>, --output=<arg>

Output file name pattern (see below)

-t <arg>, --threads=<arg>

Max threads to use

--frame-parallel

Frame parallel decode

-v, --verbose

Show version string

-S, --scale

Scale output frames uniformly

--frame-buffers=<arg>

Number of frame buffers to use

--md5

Compute the MD5 sum of the decoded frame

--error-concealment

Enable decoder error-concealment

-k, --keep-going

(debug) Continue decoding after error

VP8 Postprocessing Options:

--noise-level=<arg>

Enable VP8 postproc add noise

--deblock

Enable VP8 deblocking

--demacroblock-level=<arg>

Enable VP8 demacroblocking, w/ level

--pp-debug-info=<arg>

Enable VP8 visible debug info

--pp-dbg-ref-frame=<arg>

Display only selected reference frame per macro block

--pp-dbg-mb-modes=<arg>

Display only selected macro block modes

--pp-dbg-b-modes=<arg>

Display only selected block modes

--pp-dbg-mvs=<arg>

Draw only selected motion vectors

--mfqe

Enable multiframe quality enhancement

Output File Patterns:

The -o argument specifies the name of the file(s) to write to. If the argument does not include any escape characters, the output will be written to a single file. Otherwise, the filename will be calculated by expanding the following escape characters:

	%w		- Frame width
	%h		- Frame height

%<n> - Frame number, zero padded to <n> places (1..9)

Pattern arguments are only supported in conjunction with the --yv12 and --i420 options. If the -o option is not specified, the output will be directed to stdout.

Included decoders:

	vp8		- WebM Project VP8 Decoder v1.6.0
	vp9		- WebM Project VP9 Decoder v1.6.0