Full range vs TV Range

Comparing full range encoding vs. tv range, but also yuv420p vs. yuvj420p. We believe that this is well supported on web browsers, and dont see a downside to it. There may be cases where other applications do not read it. The code to generate these files is here. Full screen view is here

Test-1: Greyramp




Test-2: Radial gradent









Test-3: Marcie

Test-1: Greyramp

Source png file

Normal encode

Using the PNG greyramp, with the normal "TV" out range of 16-235, and using yuv420p encoding.

ffmpeg -y -loop 1 -i ./greyramp-fulltv/greyscale-raw.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=tv:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv420p -qscale:v 1 -color_range tv -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/greyscale-tv.mp4

Full range encoding.

Greyramp encoded using out_range=full yuv420p encoding, here we also set color_range=2 to let the decoder know to process it correctly.

ffmpeg -y -loop 1 -i ./greyramp-fulltv/greyscale-raw.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv420p -qscale:v 1 -color_range pc -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/greyscale-full.mp4

Test-2: Radial gradent

Source png file

This is a less forgiving test image

Normal encode

Using the radial gradent with normal yuv420p encoding and yuv420p.

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=tv:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv420p -qscale:v 1 -color_range tv -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/radialgrad-tv.mp4

Full range encoding.

Using the full range yuv420p encoding with color_range=2

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv420p -qscale:v 1 -color_range pc -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/radialgrad-full.mp4

Alternate full range encoding

This is an older alternative to full-range encoding, that ffmpeg is currently deprecating.

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuvj420p -qscale:v 1 -color_range pc -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/radialgrad-fullj.mp4

Using full range without color_range flag

This is what happens if you specify full range without the color_range flag (color_range=0). DONT DO THIS!

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv420p -qscale:v 1 -color_range unknown -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/radialgrad-full0.mp4

Full range with yuv444 (chrome only)

This is testing yuv444p but still 8-bit, this will only work on chrome.

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv444p -qscale:v 1 -color_range pc -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/radialgrad-full444.mp4

10-bit encoding, tv-range (chrome only)

This is testing 10-bit encoding, yuv444p10le

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -c:v libx264 -t 5 -preset placebo -qp 0 -x264-params "keyint=15:no-deblock=1" -pix_fmt yuv444p10le -sws_flags spline+accurate_rnd+full_chroma_int -vf "colorspace=bt709:iall=bt601-6-625:fast=1" ./greyramp-fulltv/radialgrad-raw-10bit.mp4

This is using RGB encoding

libx264rgb 8-bit mp4 (not supported)

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -c:v libx264rgb -t 5 -preset placebo -qp 0 -x264-params "keyint=15:no-deblock=1" ./greyramp-fulltv/radialgrad-raw-rgb.mp4

Test-3: Marcie

Source png file

ffmpeg -y -loop 1 -i ../sourceimages/radialgrad.png -c:v libx264rgb -t 5 -preset placebo -qp 0 -x264-params "keyint=15:no-deblock=1" ./greyramp-fulltv/radialgrad-raw-rgb.mp4

Normal encoding

marcie out_range=tv -pix_fmt yuv420p 16-235 range

ffmpeg -y -loop 1 -i ../sourceimages/Digital_LAD_raw.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=tv:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv420p -qscale:v 1 -color_range tv -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/marcie-tv.mp4

Full Range

ffmpeg -y -loop 1 -i ../sourceimages/Digital_LAD_raw.png -sws_flags spline+accurate_rnd+full_chroma_int -vf "scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709" -c:v libx264 -t 5 -pix_fmt yuv420p -qscale:v 1 -color_range pc -colorspace bt709 -color_primaries bt709 -color_trc iec61966-2-1 ./greyramp-fulltv/marcie-full.mp4