Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 libavcodec/ffv1enc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index b9ee5b629a2..430e2161a3b 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -559,8 +559,10 @@ static av_cold int encode_init(AVCodecContext *avctx)
     }
 
     // CRC requires version 3+
-    if (s->ec)
+    if (s->ec == 1)
         s->version = FFMAX(s->version, 3);
+    if (s->ec == 2)
+        s->version = FFMAX(s->version, 4);
 
     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");
@@ -1266,7 +1268,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket 
*pkt,
 #define OFFSET(x) offsetof(FFV1Context, x)
 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
 static const AVOption options[] = {
-    { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_BOOL, { 
.i64 = -1 }, -1, 1, VE },
+    { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_BOOL, { 
.i64 = -1 }, -1, 2, VE },
     { "coder", "Coder type", OFFSET(ac), AV_OPT_TYPE_INT,
             { .i64 = 0 }, -2, 2, VE, .unit = "coder" },
         { "rice", "Golomb rice", 0, AV_OPT_TYPE_CONST,
-- 
2.47.0

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