[FFmpeg-cvslog] avcodec/ffv1enc: 2Pass mode is not possible with golomb coding

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Mon Sep 30 23:42:50 2024 +0200| [417b163c00555ccda201a963e797bfa663a26ff5] | committer: Michael Niedermayer

avcodec/ffv1enc: 2Pass mode is not possible with golomb coding

"Fixes" Ticket7063

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=417b163c00555ccda201a963e797bfa663a26ff5
---

 libavcodec/ffv1enc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index a6f405289e..3222496dac 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -528,6 +528,11 @@ static av_cold int encode_init(AVCodecContext *avctx)
         avctx->slices > 1)
         s->version = FFMAX(s->version, 2);
 
+    if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) && s->ac == AC_GOLOMB_RICE) {
+        av_log(avctx, AV_LOG_ERROR, "2 Pass mode is not possible with golomb coding\n");
+        return AVERROR(EINVAL);
+    }
+
     // Unspecified level & slices, we choose version 1.2+ to ensure multithreaded decodability
     if (avctx->slices == 0 && avctx->level < 0 && avctx->width * avctx->height > 720*576)
         s->version = FFMAX(s->version, 2);