carta

vpxenc(1)

vpxenc1

Vp8 and vp9 video codec encoding tool

Usage

vpxenc <options> -o dst_filename src_filename

Options

-D, --debug: Debug mode (makes output deterministic)

-o <arg>, --output=<arg>: Output filename

--codec=<arg>: Codec to use

-p <arg>, --passes=<arg>: Number of passes (1/2)

--pass=<arg>: Pass to execute (1/2)

--fpf=<arg>: First pass statistics file name

--limit=<arg>: Stop encoding after n input frames

--skip=<arg>: Skip the first n input frames

-d <arg>, --deadline=<arg>: Deadline per frame (usec)

--best: Use Best Quality Deadline

--good: Use Good Quality Deadline

--rt: Use Realtime Quality Deadline

-q, --quiet: Do not print encode progress

-v, --verbose: Show encoder parameters

--psnr: Show PSNR in status line

--webm: Output WebM (default when WebM IO is enabled)

--ivf: Output IVF

-P, --output-partitions: Makes encoder output partitions. Requires IVF output!

--q-hist=<arg>: Show quantizer histogram (n-buckets)

--rate-hist=<arg>: Show rate histogram (n-buckets)

--disable-warnings: Disable warnings about potentially incorrect encode settings.

-y, --disable-warning-prompt: Display warnings, but do not prompt user to continue.

--test-decode=<arg>: Test encode/decode mismatch

: off, fatal, warn

Encoder Global Options:

--yv12: Input file is YV12

--i420: Input file is I420 (default)

--i422: Input file is I422

--i444: Input file is I444

--i440: Input file is I440

-u <arg>, --usage=<arg>: Usage profile number to use

-t <arg>, --threads=<arg>: Max number of threads to use

--profile=<arg>: Bitstream profile number to use

-w <arg>, --width=<arg>: Frame width

-h <arg>, --height=<arg>: Frame height

--stereo-mode=<arg>: Stereo 3D video format

: mono, left-right, bottom-top, top-bottom, right-left

--timebase=<arg>: Output timestamp precision (fractional seconds)

--fps=<arg>: Stream frame rate (rate/scale)

--error-resilient=<arg>: Enable error resiliency features

--lag-in-frames=<arg>: Max number of frames to lag

Rate Control Options:

--drop-frame=<arg>: Temporal resampling threshold (buf %)

--resize-allowed=<arg>: Spatial resampling enabled (bool)

--resize-width=<arg>: Width of encoded frame

--resize-height=<arg>: Height of encoded frame

--resize-up=<arg>: Upscale threshold (buf %)

--resize-down=<arg>: Downscale threshold (buf %)

--end-usage=<arg>: Rate control mode

: vbr, cbr, cq, q

--target-bitrate=<arg>: Bitrate (kbps)

--min-q=<arg>: Minimum (best) quantizer

--max-q=<arg>: Maximum (worst) quantizer

--undershoot-pct=<arg>: Datarate undershoot (min) target (%)

--overshoot-pct=<arg>: Datarate overshoot (max) target (%)

--buf-sz=<arg>: Client buffer size (ms)

--buf-initial-sz=<arg>: Client initial buffer size (ms)

--buf-optimal-sz=<arg>: Client optimal buffer size (ms)

Twopass Rate Control Options:

--bias-pct=<arg>: CBR/VBR bias (0=CBR, 100=VBR)

--minsection-pct=<arg>: GOP min bitrate (% of target)

--maxsection-pct=<arg>: GOP max bitrate (% of target)

Keyframe Placement Options:

--kf-min-dist=<arg>: Minimum keyframe interval (frames)

--kf-max-dist=<arg>: Maximum keyframe interval (frames)

--disable-kf: Disable keyframe placement

VP8 Specific Options:

--cpu-used=<arg>: CPU Used (-16..16)

--auto-alt-ref=<arg>: Enable automatic alt reference frames

--noise-sensitivity=<arg>: Noise sensitivity (frames to blur)

--sharpness=<arg>: Loop filter sharpness (0..7)

--static-thresh=<arg>: Motion detection threshold

--token-parts=<arg>: Number of token partitions to use, log2

--arnr-maxframes=<arg>: AltRef max frames (0..15)

--arnr-strength=<arg>: AltRef filter strength (0..6)

--arnr-type=<arg>: AltRef type

--tune=<arg>: Material to favor

: psnr, ssim

--cq-level=<arg>: Constant/Constrained Quality level

--max-intra-rate=<arg>: Max I-frame bitrate (pct)

--screen-content-mode=<arg: Screen content mode

VP9 Specific Options:

--cpu-used=<arg>: CPU Used (-8..8)

--auto-alt-ref=<arg>: Enable automatic alt reference frames

--sharpness=<arg>: Loop filter sharpness (0..7)

--static-thresh=<arg>: Motion detection threshold

--tile-columns=<arg>: Number of tile columns to use, log2

--tile-rows=<arg>: Number of tile rows to use, log2 (set to 0 while threads > 1)

--arnr-maxframes=<arg>: AltRef max frames (0..15)

--arnr-strength=<arg>: AltRef filter strength (0..6)

--arnr-type=<arg>: AltRef type

--tune=<arg>: Material to favor

: psnr, ssim

--cq-level=<arg>: Constant/Constrained Quality level

--max-intra-rate=<arg>: Max I-frame bitrate (pct)

--max-inter-rate=<arg>: Max P-frame bitrate (pct)

--gf-cbr-boost=<arg>: Boost for Golden Frame in CBR mode (pct)

--lossless=<arg>: Lossless mode (0: false (default), 1: true)

--frame-parallel=<arg>: Enable frame parallel decodability features

--aq-mode=<arg>: Adaptive quantization mode (0: off (default), 1: variance 2: complexity, 3: cyclic refresh, 4: equator360)

--frame-boost=<arg>: Enable frame periodic boost (0: off (default), 1: on)

--noise-sensitivity=<arg>: Noise sensitivity (frames to blur)

--tune-content=<arg>: Tune content type

: default, screen

--color-space=<arg>: The color space of input content:

: unknown, bt601, bt709, smpte170, smpte240, bt2020, reserved, sRGB

--min-gf-interval=<arg>: min gf/arf frame interval (default 0, indicating in-built behavior)

--max-gf-interval=<arg>: max gf/arf frame interval (default 0, indicating in-built behavior)

--target-level=<arg>: Target level (255: off (default); 0: only keep level stats; 10: level 1.0; 11: level 1.1; ... 62: level 6.2)

Stream timebase (--timebase):

: The desired precision of timestamps in the output, expressed in fractional seconds. Default is 1/1000.

Included encoders:

vp8: - WebM Project VP8 Encoder v1.6.0

vp9: - WebM Project VP9 Encoder v1.6.0 (default)

: Use --codec to switch to a non-default encoder.

-D, --debug: Debug mode (makes output deterministic)

-o <arg>, --output=<arg>: Output filename

--codec=<arg>: Codec to use

-p <arg>, --passes=<arg>: Number of passes (1/2)

--pass=<arg>: Pass to execute (1/2)

--fpf=<arg>: First pass statistics file name

--limit=<arg>: Stop encoding after n input frames

--skip=<arg>: Skip the first n input frames

-d <arg>, --deadline=<arg>: Deadline per frame (usec)

--best: Use Best Quality Deadline

--good: Use Good Quality Deadline

--rt: Use Realtime Quality Deadline

-q, --quiet: Do not print encode progress

-v, --verbose: Show encoder parameters

--psnr: Show PSNR in status line

--webm: Output WebM (default when WebM IO is enabled)

--ivf: Output IVF

-P, --output-partitions: Makes encoder output partitions. Requires IVF output!

--q-hist=<arg>: Show quantizer histogram (n-buckets)

--rate-hist=<arg>: Show rate histogram (n-buckets)

--disable-warnings: Disable warnings about potentially incorrect encode settings.

-y, --disable-warning-prompt: Display warnings, but do not prompt user to continue.

--test-decode=<arg>: Test encode/decode mismatch

: off, fatal, warn

Encoder Global Options:

--yv12: Input file is YV12

--i420: Input file is I420 (default)

--i422: Input file is I422

--i444: Input file is I444

--i440: Input file is I440

-u <arg>, --usage=<arg>: Usage profile number to use

-t <arg>, --threads=<arg>: Max number of threads to use

--profile=<arg>: Bitstream profile number to use

-w <arg>, --width=<arg>: Frame width

-h <arg>, --height=<arg>: Frame height

--stereo-mode=<arg>: Stereo 3D video format

: mono, left-right, bottom-top, top-bottom, right-left

--timebase=<arg>: Output timestamp precision (fractional seconds)

--fps=<arg>: Stream frame rate (rate/scale)

--error-resilient=<arg>: Enable error resiliency features

--lag-in-frames=<arg>: Max number of frames to lag

Rate Control Options:

--drop-frame=<arg>: Temporal resampling threshold (buf %)

--resize-allowed=<arg>: Spatial resampling enabled (bool)

--resize-width=<arg>: Width of encoded frame

--resize-height=<arg>: Height of encoded frame

--resize-up=<arg>: Upscale threshold (buf %)

--resize-down=<arg>: Downscale threshold (buf %)

--end-usage=<arg>: Rate control mode

: vbr, cbr, cq, q

--target-bitrate=<arg>: Bitrate (kbps)

--min-q=<arg>: Minimum (best) quantizer

--max-q=<arg>: Maximum (worst) quantizer

--undershoot-pct=<arg>: Datarate undershoot (min) target (%)

--overshoot-pct=<arg>: Datarate overshoot (max) target (%)

--buf-sz=<arg>: Client buffer size (ms)

--buf-initial-sz=<arg>: Client initial buffer size (ms)

--buf-optimal-sz=<arg>: Client optimal buffer size (ms)

Twopass Rate Control Options:

--bias-pct=<arg>: CBR/VBR bias (0=CBR, 100=VBR)

--minsection-pct=<arg>: GOP min bitrate (% of target)

--maxsection-pct=<arg>: GOP max bitrate (% of target)

Keyframe Placement Options:

--kf-min-dist=<arg>: Minimum keyframe interval (frames)

--kf-max-dist=<arg>: Maximum keyframe interval (frames)

--disable-kf: Disable keyframe placement

VP8 Specific Options:

--cpu-used=<arg>: CPU Used (-16..16)

--auto-alt-ref=<arg>: Enable automatic alt reference frames

--noise-sensitivity=<arg>: Noise sensitivity (frames to blur)

--sharpness=<arg>: Loop filter sharpness (0..7)

--static-thresh=<arg>: Motion detection threshold

--token-parts=<arg>: Number of token partitions to use, log2

--arnr-maxframes=<arg>: AltRef max frames (0..15)

--arnr-strength=<arg>: AltRef filter strength (0..6)

--arnr-type=<arg>: AltRef type

--tune=<arg>: Material to favor

: psnr, ssim

--cq-level=<arg>: Constant/Constrained Quality level

--max-intra-rate=<arg>: Max I-frame bitrate (pct)

--screen-content-mode=<arg: Screen content mode

VP9 Specific Options:

--cpu-used=<arg>: CPU Used (-8..8)

--auto-alt-ref=<arg>: Enable automatic alt reference frames

--sharpness=<arg>: Loop filter sharpness (0..7)

--static-thresh=<arg>: Motion detection threshold

--tile-columns=<arg>: Number of tile columns to use, log2

--tile-rows=<arg>: Number of tile rows to use, log2 (set to 0 while threads > 1)

--arnr-maxframes=<arg>: AltRef max frames (0..15)

--arnr-strength=<arg>: AltRef filter strength (0..6)

--arnr-type=<arg>: AltRef type

--tune=<arg>: Material to favor

: psnr, ssim

--cq-level=<arg>: Constant/Constrained Quality level

--max-intra-rate=<arg>: Max I-frame bitrate (pct)

--max-inter-rate=<arg>: Max P-frame bitrate (pct)

--gf-cbr-boost=<arg>: Boost for Golden Frame in CBR mode (pct)

--lossless=<arg>: Lossless mode (0: false (default), 1: true)

--frame-parallel=<arg>: Enable frame parallel decodability features

--aq-mode=<arg>: Adaptive quantization mode (0: off (default), 1: variance 2: complexity, 3: cyclic refresh, 4: equator360)

--frame-boost=<arg>: Enable frame periodic boost (0: off (default), 1: on)

--noise-sensitivity=<arg>: Noise sensitivity (frames to blur)

--tune-content=<arg>: Tune content type

: default, screen

--color-space=<arg>: The color space of input content:

: unknown, bt601, bt709, smpte170, smpte240, bt2020, reserved, sRGB

--min-gf-interval=<arg>: min gf/arf frame interval (default 0, indicating in-built behavior)

--max-gf-interval=<arg>: max gf/arf frame interval (default 0, indicating in-built behavior)

--target-level=<arg>: Target level (255: off (default); 0: only keep level stats; 10: level 1.0; 11: level 1.1; ... 62: level 6.2)

Stream timebase (--timebase):

: The desired precision of timestamps in the output, expressed in fractional seconds. Default is 1/1000.

Included encoders:

vp8: - WebM Project VP8 Encoder v1.6.0

vp9: - WebM Project VP9 Encoder v1.6.0 (default)

: Use --codec to switch to a non-default encoder.

$ vpxenc

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