avcodec/bink: fix seeking to frame 0

Fixes Ticket3088

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cb52d6da0a)

Conflicts:
	libavcodec/bink.c
This commit is contained in:
Michael Niedermayer
2013-10-30 23:56:52 +01:00
committed by Carl Eugen Hoyos
parent 93d720b040
commit fd8af75109

View File

@@ -117,6 +117,7 @@ typedef struct BinkContext {
int version; ///< internal Bink file version
int has_alpha;
int swap_planes;
unsigned frame_num;
Bundle bundle[BINKB_NB_SRC]; ///< bundles for decoding all data types
Tree col_high[16]; ///< trees for decoding high nibble in "colours" data type
@@ -1207,6 +1208,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
if (c->version >= 'i')
skip_bits_long(&gb, 32);
c->frame_num++;
for (plane = 0; plane < 3; plane++) {
plane_idx = (!plane || !c->swap_planes) ? plane : (plane ^ 3);
@@ -1215,7 +1218,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
return ret;
} else {
if ((ret = binkb_decode_plane(c, &gb, plane_idx,
!avctx->frame_number, !!plane)) < 0)
c->frame_num == 1, !!plane)) < 0)
return ret;
}
if (get_bits_count(&gb) >= bits_count)
@@ -1339,6 +1342,13 @@ static av_cold int decode_end(AVCodecContext *avctx)
return 0;
}
static void flush(AVCodecContext *avctx)
{
BinkContext * const c = avctx->priv_data;
c->frame_num = 0;
}
AVCodec ff_bink_decoder = {
.name = "binkvideo",
.type = AVMEDIA_TYPE_VIDEO,
@@ -1348,5 +1358,6 @@ AVCodec ff_bink_decoder = {
.close = decode_end,
.decode = decode_frame,
.long_name = NULL_IF_CONFIG_SMALL("Bink video"),
.flush = flush,
.capabilities = CODEC_CAP_DR1,
};