[FFmpeg-devel] [PATCH v4 01/11] fftools/qsv: enabling d3d11va/dxva2 device selection

[artem.galin at gmail.com]

From: Artem Galin <artem.galin at intel.com>

child_device_type argument is responsible for selection.

Usage examples:

DirectX 11
-init_hw_device qsv:hw,child_device_type=d3d11va

DirectX 9
-init_hw_device qsv:hw,child_device_type=dxva2

Signed-off-by: Artem Galin <artem.galin at intel.com>
---
 fftools/ffmpeg_opt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 60bb437ea7..83f1b53e9d 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -558,7 +558,11 @@ static int opt_init_hw_device(void *optctx, const char *opt, const char *arg)
         printf("\n");
         exit_program(0);
     } else {
-        return hw_device_init_from_string(arg, NULL);
+        int err;
+        if (!arg)
+            return AVERROR(ENOMEM);
+        err = hw_device_init_from_string(arg, NULL);
+        return err;
     }
 }
 
-- 
2.26.0