On 9/12/2022 10:02 AM, James Almer wrote:
It may be NULL, as is the case for D3D11VA_VLD.Running "ffmpeg -h decoder=h264" on a Windows build Before: Decoder h264 [H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10]: Supported hardware devices: dxva2 (null) d3d11va cuda After: Decoder h264 [H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10]: Supported hardware devices: dxva2 d3d11va cuda Signed-off-by: James Almer <jamr...@gmail.com> --- fftools/opt_common.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fftools/opt_common.c b/fftools/opt_common.c index 7cd8b1c66e..8a06df82df 100644 --- a/fftools/opt_common.c +++ b/fftools/opt_common.c @@ -335,9 +335,12 @@ static void print_codec(const AVCodec *c) printf(" Supported hardware devices: "); for (int i = 0;; i++) { const AVCodecHWConfig *config = avcodec_get_hw_config(c, i); + const char *name; if (!config) break; - printf("%s ", av_hwdevice_get_type_name(config->device_type)); + name = av_hwdevice_get_type_name(config->device_type); + if (name) + printf("%s ", name); } printf("\n"); }
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