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obs-ffmpeg: Improve NVENC detection

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Certain NVIDIA GPUs don't support NVENC, but ship with the NVENC
library, causing OBS to mistakenly think that NVENC is available when it
actually isn't.

Closes jp9000/obs-studio#1087
This commit is contained in:
Michel 2017-12-01 14:33:19 +01:00 committed by jp9000
parent a538dbe3db
commit 94b5982216
1 changed files with 30 additions and 1 deletions
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31
plugins/obs-ffmpeg/obs-ffmpeg.c
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@ -116,6 +116,8 @@ cleanup:
destroy_log_context(log_context);
}
static const char *nvenc_check_name = "nvenc_check";
static bool nvenc_supported(void)
{
AVCodec *nvenc = avcodec_find_encoder_by_name("nvenc_h264");
@ -133,8 +135,35 @@ static bool nvenc_supported(void)
#else
lib = os_dlopen("libnvidia-encode.so.1");
#endif
if (!lib)
return false;
os_dlclose(lib);
return !!lib;
bool success = false;
profile_start(nvenc_check_name);
AVCodecContext *context = avcodec_alloc_context3(nvenc);
if (!context)
goto cleanup;
context->bit_rate = 5000;
context->width = 640;
context->height = 480;
context->time_base = (AVRational) { 1, 25 };
context->pix_fmt = AV_PIX_FMT_YUV420P;
if (avcodec_open2(context, nvenc, NULL) < 0)
goto cleanup;
success = true;
cleanup:
if (context)
avcodec_free_context(&context);
profile_end(nvenc_check_name);
return success;
}
bool obs_module_load(void)