Hi!
Attached patch fixes (initial) playback for the files in
http://samples.ffmpeg.org/V-codecs/UCOD/noextradata/
- kindly provided by Piotr.
Please comment, Carl Eugen
From 6fb8df8d4750e66d62eb75ed57ea56463c4ebd38 Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffm...@gmail.com>
Date: Sat, 7 Apr 2018 21:30:45 +0200
Subject: [PATCH] lavc/clearvideo: Allow decoding without extradata.
---
libavcodec/clearvideo.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/clearvideo.c b/libavcodec/clearvideo.c
index 9319cac..6061cb5 100644
--- a/libavcodec/clearvideo.c
+++ b/libavcodec/clearvideo.c
@@ -652,6 +652,8 @@ static av_cold int clv_decode_init(AVCodecContext *avctx)
c->tile_size = AV_RL32(&avctx->extradata[94]);
} else if (avctx->extradata_size == 150) {
c->tile_size = AV_RB32(&avctx->extradata[134]);
+ } else if (!avctx->extradata_size) {
+ c->tile_size = 16;
} else {
av_log(avctx, AV_LOG_ERROR, "Unsupported extradata size: %d\n", avctx->extradata_size);
return AVERROR_INVALIDDATA;
--
1.7.10.4
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