diff options
| 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_mpeg4.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_mpeg4.c')
| -rw-r--r-- | libavcodec/vaapi_mpeg4.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/vaapi_mpeg4.c b/libavcodec/vaapi_mpeg4.c index b00f73dce1..f8c5ddf209 100644 --- a/libavcodec/vaapi_mpeg4.c +++ b/libavcodec/vaapi_mpeg4.c @@ -21,6 +21,7 @@ */ #include "h263.h" +#include "hwaccel.h" #include "internal.h" #include "mpeg4video.h" #include "mpegvideo.h" @@ -189,6 +190,7 @@ AVHWAccel ff_mpeg4_vaapi_hwaccel = { .init = &ff_vaapi_decode_init, .uninit = &ff_vaapi_decode_uninit, .priv_data_size = sizeof(VAAPIDecodeContext), + .caps_internal = HWACCEL_CAP_ASYNC_SAFE, }; #endif @@ -205,5 +207,6 @@ AVHWAccel ff_h263_vaapi_hwaccel = { .init = &ff_vaapi_decode_init, .uninit = &ff_vaapi_decode_uninit, .priv_data_size = sizeof(VAAPIDecodeContext), + .caps_internal = HWACCEL_CAP_ASYNC_SAFE, }; #endif |