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| author | Anton Khirnov <anton@khirnov.net> | 2016-11-24 15:14:22 +0100 |
|---|---|---|
| committer | wm4 <nfxjfg@googlemail.com> | 2017-03-21 06:17:28 +0100 |
| commit | e0cd598bc4684654d63942e9ff4872c0b48a7dc2 (patch) | |
| tree | 4d342847caf85a15ef39d57508bcd458e1da02ff /libavcodec/vaapi_mpeg2.c | |
| parent | 14bb15bfd56d6e907fabe4620206c1ee152b7a20 (diff) | |
| download | ffmpeg-e0cd598bc4684654d63942e9ff4872c0b48a7dc2.tar.gz | |
pthread_frame: do not run hwaccel decoding asynchronously unless it's safe
Certain hardware decoding APIs are not guaranteed to be thread-safe, so
having the user access decoded hardware surfaces while the decoder is
running in another thread can cause failures (this is mainly known to
happen with DXVA2).
For such hwaccels, only allow the decoding thread to run while the user
is inside a lavc decode call (avcodec_send_packet/receive_frame).
Merges Libav commit d4a91e65.
Signed-off-by: wm4 <nfxjfg@googlemail.com>
Tested-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/vaapi_mpeg2.c')
| -rw-r--r-- | libavcodec/vaapi_mpeg2.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/vaapi_mpeg2.c b/libavcodec/vaapi_mpeg2.c index b2417ee830..0d197c9692 100644 --- a/libavcodec/vaapi_mpeg2.c +++ b/libavcodec/vaapi_mpeg2.c @@ -20,6 +20,7 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "hwaccel.h" #include "mpegutils.h" #include "mpegvideo.h" #include "internal.h" @@ -183,4 +184,5 @@ AVHWAccel ff_mpeg2_vaapi_hwaccel = { .init = &ff_vaapi_decode_init, .uninit = &ff_vaapi_decode_uninit, .priv_data_size = sizeof(VAAPIDecodeContext), + .caps_internal = HWACCEL_CAP_ASYNC_SAFE, }; |