[FFmpeg-cvslog] hevc: Allow parsing external extradata buffers
Vittorio Giovara
git at videolan.org
Fri Dec 2 22:13:43 EET 2016
ffmpeg | branch: master | Vittorio Giovara <vittorio.giovara at gmail.com> | Tue Nov 8 16:52:29 2016 -0500| [46fae40d253747187bed0c00ca8e3d89a3226976] | committer: Vittorio Giovara
hevc: Allow parsing external extradata buffers
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=46fae40d253747187bed0c00ca8e3d89a3226976
---
libavcodec/hevc.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/libavcodec/hevc.c b/libavcodec/hevc.c
index 29e0d49..441f5ab 100644
--- a/libavcodec/hevc.c
+++ b/libavcodec/hevc.c
@@ -2973,17 +2973,15 @@ static int verify_md5(HEVCContext *s, AVFrame *frame)
return 0;
}
-static int hevc_decode_extradata(HEVCContext *s)
+static int hevc_decode_extradata(HEVCContext *s, uint8_t *buf, int length)
{
AVCodecContext *avctx = s->avctx;
GetByteContext gb;
int ret, i;
- bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
+ bytestream2_init(&gb, buf, length);
- if (avctx->extradata_size > 3 &&
- (avctx->extradata[0] || avctx->extradata[1] ||
- avctx->extradata[2] > 1)) {
+ if (length > 3 && (buf[0] || buf[1] || buf[2] > 1)) {
/* It seems the extradata is encoded as hvcC format.
* Temporarily, we support configurationVersion==0 until 14496-15 3rd
* is finalized. When finalized, configurationVersion will be 1 and we
@@ -3030,7 +3028,7 @@ static int hevc_decode_extradata(HEVCContext *s)
s->nal_length_size = nal_len_size;
} else {
s->is_nalff = 0;
- ret = decode_nal_units(s, avctx->extradata, avctx->extradata_size);
+ ret = decode_nal_units(s, buf, length);
if (ret < 0)
return ret;
}
@@ -3338,7 +3336,7 @@ static av_cold int hevc_decode_init(AVCodecContext *avctx)
s->threads_number = 1;
if (avctx->extradata_size > 0 && avctx->extradata) {
- ret = hevc_decode_extradata(s);
+ ret = hevc_decode_extradata(s, avctx->extradata, avctx->extradata_size);
if (ret < 0) {
hevc_decode_free(avctx);
return ret;
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