avcodec: cleanup VA API case in ffmpeg_GetFrameBuf.

modules/codec/avcodec/va.h

@@ -30,8 +30,6 @@ struct vlc_va_t {
     char *description;
     vlc_object_t *obj;
 
-    bool b_direct;
-
     int  (*setup)(vlc_va_t *, void **hw, vlc_fourcc_t *output,
                   int width, int height);
     int  (*get)(vlc_va_t *, AVFrame *frame);

modules/codec/avcodec/video.c

@@ -754,7 +754,8 @@ picture_t *DecodeVideo( decoder_t *p_dec, block_t **pp_block )
         if( p_sys->p_va && p_sys->p_ff_pic->opaque )
         {
             p_pic = (picture_t *)p_sys->p_ff_pic->opaque;
-            decoder_LinkPicture( p_dec, p_pic );
+            if( p_pic->format.i_chroma != VLC_CODEC_VAAPI_SURFACE )
+                decoder_LinkPicture( p_dec, p_pic );
 
             /* Fill p_picture_t from AVVideoFrame and do chroma conversion
              * if needed */
@@ -796,7 +797,7 @@ picture_t *DecodeVideo( decoder_t *p_dec, block_t **pp_block )
         }
 
         /* Send decoded frame to vout */
-        if( i_pts > VLC_TS_INVALID)
+        if( i_pts > VLC_TS_INVALID )
         {
             p_pic->date = i_pts;
 
@@ -999,25 +1000,26 @@ static int ffmpeg_GetFrameBuf( struct AVCodecContext *p_context,
 
     if( p_sys->p_va )
     {
-        do
-        {
-            if( p_dec->b_die )
-                return -1;
-            p_pic = ffmpeg_NewPictBuf( p_dec, p_sys->p_context );
-        } while( p_sys->p_va->b_direct && p_pic == NULL );
+        /* */
+        p_ff_pic->type = FF_BUFFER_TYPE_USER;
+#if LIBAVCODEC_VERSION_MAJOR < 54
+        /* FIXME what is that, should give good value */
+        p_ff_pic->age = 256*256*256*64; // FIXME FIXME from ffmpeg
+#endif
 
-        if( p_pic && p_pic->format.i_chroma == VLC_CODEC_VAAPI_SURFACE )
+        /* NOTE: Get first picture from video output instead of from the
+         * normal (non-accellerated vouts) mechanism. The drawback is that
+         * decoding the first pictures is delayed with the creation of the
+         * video output module.
+         */
+        p_pic = ffmpeg_NewPictBuf( p_dec, p_sys->p_context );
+        if( p_pic && ( p_pic->format.i_chroma == VLC_CODEC_VAAPI_SURFACE ) )
         {
-            p_sys->p_va->b_direct = true;
             p_ff_pic->opaque = (void*)p_pic;
-            p_ff_pic->type = FF_BUFFER_TYPE_USER;
-#if LIBAVCODEC_VERSION_MAJOR < 54
-            /* FIXME what is that, should give good value */
-            p_ff_pic->age = 256*256*256*64; // FIXME FIXME from ffmpeg
-#endif
+            decoder_LinkPicture( p_dec, p_pic );
             vlc_va_Put( p_sys->p_va, p_ff_pic, p_pic );
         }
-        else if( !p_sys->p_va->b_direct )
+        else
         {
             if( p_pic ) picture_Release( p_pic );
 #ifdef HAVE_AVCODEC_VA
@@ -1029,18 +1031,10 @@ static int ffmpeg_GetFrameBuf( struct AVCodecContext *p_context,
                 msg_Err( p_dec, "vlc_va_Setup failed" );
                 return -1;
             }
-            msg_Info( p_dec, "vlc_va_Setup" );
 #else
             assert(0);
 #endif
 
-            /* */
-            p_ff_pic->type = FF_BUFFER_TYPE_USER;
-#if LIBAVCODEC_VERSION_MAJOR < 54
-            /* FIXME what is that, should give good value */
-            p_ff_pic->age = 256*256*256*64; // FIXME FIXME from ffmpeg
-#endif
-
             if( vlc_va_Get( p_sys->p_va, p_ff_pic ) )
             {
                 msg_Err( p_dec, "vaGrabSurface failed" );