* [FFmpeg-devel] [PATCH] avcodec/ffv1enc: Factor set_micro_version() out of ff_ffv1_write_extradata()
@ 2025-03-11 13:04 Michael Niedermayer
0 siblings, 0 replies; only message in thread
From: Michael Niedermayer @ 2025-03-11 13:04 UTC (permalink / raw)
To: FFmpeg development discussions and patches
and call it from ff_ffv1_encode_init()
setting micro version from code writing the extradata is messy, this should
be cleaner
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/ffv1enc.c | 27 +++++++++++++++++++--------
1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index ddada6bc404..f2628aa77a8 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -392,6 +392,22 @@ static void write_header(FFV1Context *f)
}
}
+static void set_micro_version(FFV1Context *f)
+{
+ f->combined_version = f->version << 16;
+ if (f->version > 2) {
+ if (f->version == 3) {
+ f->micro_version = 4;
+ } else if (f->version == 4) {
+ f->micro_version = 4;
+ } else
+ av_assert0(0);
+
+ f->combined_version += f->micro_version;
+ } else
+ av_assert0(f->micro_version == 0);
+}
+
av_cold int ff_ffv1_write_extradata(AVCodecContext *avctx)
{
FFV1Context *f = avctx->priv_data;
@@ -414,15 +430,8 @@ av_cold int ff_ffv1_write_extradata(AVCodecContext *avctx)
ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8);
put_symbol(&c, state, f->version, 0);
- f->combined_version = f->version << 16;
- if (f->version > 2) {
- if (f->version == 3) {
- f->micro_version = 4;
- } else if (f->version == 4)
- f->micro_version = 4;
- f->combined_version += f->micro_version;
+ if (f->version > 2)
put_symbol(&c, state, f->micro_version, 0);
- }
put_symbol(&c, state, f->ac, 0);
if (f->ac == AC_RANGE_CUSTOM_TAB)
@@ -742,6 +751,8 @@ av_cold int ff_ffv1_encode_init(AVCodecContext *avctx)
s->num_v_slices = 1;
}
+ set_micro_version(s);
+
return 0;
}
--
2.48.1
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2025-03-11 13:04 [FFmpeg-devel] [PATCH] avcodec/ffv1enc: Factor set_micro_version() out of ff_ffv1_write_extradata() Michael Niedermayer
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