Hi! Attached patch fixes ticket #5815.
Please comment, Carl Eugen
From 3cf356b38a8ea6f9c98c36ad5cc7413dfa780e28 Mon Sep 17 00:00:00 2001 From: Carl Eugen Hoyos <ceho...@ag.or.at> Date: Fri, 16 Sep 2016 14:21:09 +0200 Subject: [PATCH] lavc/libvpxenc: Avoid vp8 transparency encoding with auto-alt-ref. Fixes ticket #5815. --- libavcodec/libvpxenc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c index f3cff81..2db87f7 100644 --- a/libavcodec/libvpxenc.c +++ b/libavcodec/libvpxenc.c @@ -631,6 +631,11 @@ FF_ENABLE_DEPRECATION_WARNINGS if (ctx->tune >= 0) codecctl_int(avctx, VP8E_SET_TUNING, ctx->tune); + if (ctx->auto_alt_ref && ctx->is_alpha && avctx->codec_id == AV_CODEC_ID_VP8) { + av_log(avctx, AV_LOG_ERROR, "Transparency encoding with auto_alt_ref does not work\n"); + return AVERROR(EINVAL); + } + if (CONFIG_LIBVPX_VP8_ENCODER && avctx->codec_id == AV_CODEC_ID_VP8) { #if FF_API_PRIVATE_OPT FF_DISABLE_DEPRECATION_WARNINGS -- 1.7.10.4
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