The layout for the frame flags is as follow:
chroma_format u(2)
reserved u(2)
interlace_mode u(2)
reserved u(2)
chroma_format has 2 allowed values:
0: reserved
1: reserved
2: 4:2:2
3: 4:4:4
interlace_mode has 3 allowed values:
0: progressive
1: tff
2: bff
3: reserved
0x80 is what we expect for "422 not interlaced", and the extra 0x2 from
0x82 is actually writting into the reserved bits.
---
libavcodec/proresenc_anatoliy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/proresenc_anatoliy.c b/libavcodec/proresenc_anatoliy.c
index 727199ed3b..7c2ec7b3fe 100644
--- a/libavcodec/proresenc_anatoliy.c
+++ b/libavcodec/proresenc_anatoliy.c
@@ -751,7 +751,7 @@ static int prores_encode_frame(AVCodecContext *avctx,
AVPacket *pkt,
bytestream_put_buffer(&buf, ctx->vendor, 4);
bytestream_put_be16(&buf, avctx->width);
bytestream_put_be16(&buf, avctx->height);
- frame_flags = 0x82; /* 422 not interlaced */
+ frame_flags = 0x80; /* 422 not interlaced */
if (avctx->profile >= AV_PROFILE_PRORES_4444) /* 4444 or 4444 Xq */
frame_flags |= 0x40; /* 444 chroma */
if (ctx->is_interlaced) {
--
2.43.0
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