avcodec/v4l2_context: return EAGAIN to signal full buffers

Return proper error when frame buffers are full. This path is triggered
on the DragonBoard 410c since the encoding API change in commit
827d6fe73d2f5472c1c2.

Signed-off-by: Andriy Gelman <andriy.gelman@gmail.com>
Reviewed-by: Mark Thompson <sw@jkqxz.net>

diff --git a/libavcodec/v4l2_context.c b/libavcodec/v4l2_context.c
index 29b144ed73ee3a899f6ca498b99b877a38486614..ff1ea8e57b08b3220f108dde6ba26b89050ad262 100644 (file)
--- a/libavcodec/v4l2_context.c
+++ b/libavcodec/v4l2_context.c
@@ -599,7 +599,7 @@ int ff_v4l2_context_enqueue_frame(V4L2Context* ctx, const AVFrame* frame)
 
     avbuf = v4l2_getfree_v4l2buf(ctx);
     if (!avbuf)
-        return AVERROR(ENOMEM);
+        return AVERROR(EAGAIN);
 
     ret = ff_v4l2_buffer_avframe_to_buf(frame, avbuf);
     if (ret)