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| author | Aman Gupta <aman@tmm1.net> | 2017-11-28 08:49:21 -0800 |
|---|---|---|
| committer | Aman Gupta <aman@tmm1.net> | 2017-11-28 08:50:13 -0800 |
| commit | b5d56d8ef1ef17487d827f1e35d02501f55218de (patch) | |
| tree | dae8a42b86ed0bd4130a6e57c8bf242486e3296a | |
| parent | d5d2632e3a0f1709290834fd35457cd05cf48bc8 (diff) | |
| download | ffmpeg-b5d56d8ef1ef17487d827f1e35d02501f55218de.tar.gz | |
avcodec/videotoolbox: fix SEGV when hwaccel decoding h264 with ffmpeg.c
Signed-off-by: Aman Gupta <aman@tmm1.net>
| -rw-r--r-- | libavcodec/videotoolbox.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libavcodec/videotoolbox.c b/libavcodec/videotoolbox.c index c275e0111e..afec1edf3f 100644 --- a/libavcodec/videotoolbox.c +++ b/libavcodec/videotoolbox.c @@ -119,7 +119,8 @@ CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx) // save sps header (profile/level) used to create decoder session, // so we can detect changes and recreate it. - memcpy(vtctx->sps, h->ps.sps->data + 1, 3); + if (vtctx) + memcpy(vtctx->sps, h->ps.sps->data + 1, 3); data = CFDataCreate(kCFAllocatorDefault, vt_extradata, vt_extradata_size); av_free(vt_extradata); @@ -323,6 +324,11 @@ static int videotoolbox_h264_decode_params(AVCodecContext *avctx, uint32_t size) { VTContext *vtctx = avctx->internal->hwaccel_priv_data; + H264Context *h = avctx->priv_data; + + // save sps header (profile/level) used to create decoder session + if (!vtctx->sps[0]) + memcpy(vtctx->sps, h->ps.sps->data + 1, 3); if (type == H264_NAL_SPS) { if (size > 4 && memcmp(vtctx->sps, buffer + 1, 3) != 0) { |