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dxva2: Increase maximum number of slices for mpeg2

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Some content requires an higher number of slices in order to
render properly.

Rise the number to 1024 and warn if ever it exceeds.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Rainer Hochecker 2014-03-06 14:40:43 +01:00 committed by Luca Barbato
parent 5b977c1d4f
commit b66382101c
1 changed files with 6 additions and 3 deletions
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9
libavcodec/dxva2_mpeg2.c
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@ -20,9 +20,10 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/log.h"
#include "dxva2_internal.h"
#define MAX_SLICES (SLICE_MAX_START_CODE - SLICE_MIN_START_CODE + 1)
#define MAX_SLICES 1024
struct dxva2_picture_context {
DXVA_PictureParameters pp;
DXVA_QmatrixData qm;
@ -233,9 +234,11 @@ static int dxva2_mpeg2_decode_slice(AVCodecContext *avctx,
s->current_picture_ptr->hwaccel_picture_private;
unsigned position;
if (ctx_pic->slice_count >= MAX_SLICES)
if (ctx_pic->slice_count >= MAX_SLICES) {
avpriv_request_sample(avctx, "%d slices in dxva2",
ctx_pic->slice_count);
return -1;
}
if (!ctx_pic->bitstream)
ctx_pic->bitstream = buffer;
ctx_pic->bitstream_size += size;