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avcodec/ffv1enc: Fix explicitly set -slicecrc 2

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crcref needs to be set properly iff ec is two, regardless
of whether it has been explicitly set by the user or set
by default based on level/version.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2025-05-25 05:21:44 +02:00
parent 3cbe3418b2
commit a6bcc773b5
1 changed files with 3 additions and 2 deletions
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5
libavcodec/ffv1enc.c
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@ -629,7 +629,6 @@ av_cold int ff_ffv1_encode_init(AVCodecContext *avctx)
if (s->ec < 0) {
if (s->version >= 4) {
s->ec = 2;
s->crcref = 0x7a8c4079;
} else if (s->version >= 3) {
s->ec = 1;
} else
@ -639,8 +638,10 @@ av_cold int ff_ffv1_encode_init(AVCodecContext *avctx)
// CRC requires version 3+
if (s->ec == 1)
s->version = FFMAX(s->version, 3);
if (s->ec == 2)
if (s->ec == 2) {
s->version = FFMAX(s->version, 4);
s->crcref = 0x7a8c4079;
}
if ((s->version == 2 || s->version>3) && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
av_log(avctx, AV_LOG_ERROR, "Version 2 or 4 needed for requested features but version 2 or 4 is experimental and not enabled\n");