Are these correct? Or, is there some official reference I can consult? --Mark.
KEY: ¤ —— Element exists in the field and is sampled • —— Element exists in the field but is not sampled —— (blank) Element doesn't exist in the field Reference: https://en.wikipedia.org/wiki/Chroma_subsampling Y element, pixels 0..3 / Cb element, pixels 0..3 / / Cr element, pixels 0..3 / / / 4:4:4 ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ —— lines in field 0 ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ —— lines in field 1 4:4:2 ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ ¤•¤• ¤•¤• 4:4:2 ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ // JPEG variant according to the reference ¤¤¤¤ ¤¤¤¤ 4:4:1 ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ ¤••• ¤••• 4:4:0 ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ ¤¤¤¤ 4:2:2 ¤¤¤¤ ¤•¤• ¤•¤• ¤¤¤¤ ¤•¤• ¤•¤• 4:2:1 ¤¤¤¤ ¤•¤• ¤•¤• ¤¤¤¤ ¤••• ¤••• 4:2:1 ¤¤¤¤ ¤•¤• ¤•¤• // JPEG variant according to the reference ¤¤¤¤ ¤••• 4:2:0 ¤¤¤¤ ¤•¤• ¤•¤• ¤¤¤¤ 4:1:1 ¤¤¤¤ ¤••• ¤••• ¤¤¤¤ ¤••• ¤••• 4:1:0 ¤¤¤¤ ¤••• ¤••• ¤¤¤¤ 4:0:0 ¤¤¤¤ // My conjecture ¤¤¤¤ 3:1:1 ¤¤¤ ¤•• ¤•• // Sony variant according to the reference ¤¤¤ ¤•• ¤•• _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
