[FFmpeg-trac] #8359(undetermined:closed): FFmpeg’s nv12 libx264: ffmpeg encodes in “yuv420p” instead of “nv12”
FFmpeg
trac at avcodec.org
Sat Nov 9 02:23:27 EET 2019
#8359: FFmpeg’s nv12 libx264: ffmpeg encodes in “yuv420p” instead of “nv12”
-------------------------------------+-------------------------------------
Reporter: Kdmeizk | Owner:
Type: defect | Status: closed
Priority: normal | Component:
| undetermined
Version: git-master | Resolution: invalid
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Kdmeizk):
Replying to [comment:3 heleppkes]:
> h264 does not care what format you feed it, it simply encodes 4:2:0
chroma. It does not encode a specific pixel format, those are
implementation details.
Example:
{{{
x264-r2969-d4099dd.exe --fullhelp
[…]
--input-csp <string> Specify input colorspace format for raw
input
- valid csps for `raw' demuxer:
i400, i420, yv12, nv12, nv21, i422, yv16,
nv16,
yuyv, uyvy, i444, yv24, bgr, bgra, rgb
- valid csps for `lavf' demuxer:
yuv420p, yuyv422, rgb24, bgr24, yuv422p,
yuv444p, yuv410p, yuv411p, gray, monow,
monob,
pal8, yuvj420p, yuvj422p, yuvj444p,
uyvy422,
uyyvyy411, bgr8, bgr4, bgr4_byte, rgb8,
rgb4,
rgb4_byte, nv12, nv21, argb, rgba, abgr,
bgra,
gray16be, gray16le, yuv440p, yuvj440p,
yuva420p, rgb48be, rgb48le, rgb565be,
rgb565le,
rgb555be, rgb555le, bgr565be, bgr565le,
bgr555be, bgr555le, vaapi_moco,
vaapi_idct,
vaapi_vld, yuv420p16le, yuv420p16be,
yuv422p16le, yuv422p16be, yuv444p16le,
yuv444p16be, dxva2_vld, rgb444le,
rgb444be,
bgr444le, bgr444be, ya8, bgr48be, bgr48le,
yuv420p9be, yuv420p9le, yuv420p10be,
yuv420p10le, yuv422p10be, yuv422p10le,
yuv444p9be, yuv444p9le, yuv444p10be,
yuv444p10le, yuv422p9be, yuv422p9le, gbrp,
gbrp9be, gbrp9le, gbrp10be, gbrp10le,
gbrp16be,
gbrp16le, yuva422p, yuva444p, yuva420p9be,
yuva420p9le, yuva422p9be, yuva422p9le,
yuva444p9be, yuva444p9le, yuva420p10be,
yuva420p10le, yuva422p10be, yuva422p10le,
yuva444p10be, yuva444p10le, yuva420p16be,
yuva420p16le, yuva422p16be, yuva422p16le,
yuva444p16be, yuva444p16le, vdpau,
xyz12le,
xyz12be, nv16, nv20le, nv20be, rgba64be,
rgba64le, bgra64be, bgra64le, yvyu422,
ya16be,
ya16le, gbrap, gbrap16be, gbrap16le, qsv,
mmal,
d3d11va_vld, cuda, 0rgb, rgb0, 0bgr, bgr0,
yuv420p12be, yuv420p12le, yuv420p14be,
yuv420p14le, yuv422p12be, yuv422p12le,
yuv422p14be, yuv422p14le, yuv444p12be,
yuv444p12le, yuv444p14be, yuv444p14le,
gbrp12be, gbrp12le, gbrp14be, gbrp14le,
yuvj411p, bayer_bggr8, bayer_rggb8,
bayer_gbrg8, bayer_grbg8, bayer_bggr16le,
bayer_bggr16be, bayer_rggb16le,
bayer_rggb16be,
bayer_gbrg16le, bayer_gbrg16be,
bayer_grbg16le,
bayer_grbg16be, xvmc, yuv440p10le,
yuv440p10be,
yuv440p12le, yuv440p12be, ayuv64le,
ayuv64be,
videotoolbox_vld, p010le, p010be,
gbrap12be,
gbrap12le, gbrap10be, gbrap10le,
mediacodec,
gray12be, gray12le, gray10be, gray10le,
p016le,
p016be, d3d11, gray9be, gray9le,
gbrpf32be,
gbrpf32le, gbrapf32be, gbrapf32le,
drm_prime,
opencl, gray14be, gray14le, grayf32be,
grayf32le, yuva422p12be, yuva422p12le,
yuva444p12be, yuva444p12le
--output-csp <string> Specify output colorspace ["i420"]
- i400, i420, i422, i444, rgb
}}}
“-pix_fmt yuv420p” means “--input-csp yuv420p” and “--output-csp i420”.
|| “i420” || = colorspace format ||
|| “yuv420p” || = pixel format using the colorspace format “i420” ||
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8359#comment:4>
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