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mpeg12: Ignore slice threading if hwaccel is active

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Slice threading does not work with hardware acceleration, as decoding
is per-picture.  This fixes Bugzilla #542.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
(cherry picked from commit 93a51984a2)

Conflicts:
	libavcodec/mpeg12dec.c
This commit is contained in:
Rémi Denis-Courmont
2013-07-24 19:50:43 +03:00
committed by Carl Eugen Hoyos
parent d83ab33715
commit 70127070dd
1 changed files with 6 additions and 3 deletions
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9
libavcodec/mpeg12.c
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@@ -2277,7 +2277,8 @@ static int decode_chunks(AVCodecContext *avctx,
buf_ptr = avpriv_mpv_find_start_code(buf_ptr, buf_end, &start_code);
if (start_code > 0x1ff) {
if (s2->pict_type != AV_PICTURE_TYPE_B || avctx->skip_frame <= AVDISCARD_DEFAULT) {
if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE)) {
if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE) &&
!avctx->hwaccel) {
int i;
av_assert0(avctx->thread_count > 1);
@@ -2337,7 +2338,8 @@ static int decode_chunks(AVCodecContext *avctx,
s2->intra_dc_precision= 3;
s2->intra_matrix[0]= 1;
}
if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE) && s->slice_count) {
if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE) &&
!avctx->hwaccel && s->slice_count) {
int i;
avctx->execute(avctx, slice_decode_thread,
@@ -2504,7 +2506,8 @@ static int decode_chunks(AVCodecContext *avctx,
break;
}
if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE)) {
if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE) &&
!avctx->hwaccel) {
int threshold = (s2->mb_height * s->slice_count +
s2->slice_context_count / 2) /
s2->slice_context_count;