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Merge commit '9f30fb5a773d59298d8d45c741b3fd971d84c97b'

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* commit '9f30fb5a773d59298d8d45c741b3fd971d84c97b':
  configure: Don't pass -mthumb or -march= to MSVC
  mpeg12: skip frames consistently

Conflicts:
	libavcodec/mpeg12dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-29 11:06:26 +02:00
commit 200ef1e3c3
2 changed files with 15 additions and 5 deletions
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2
configure vendored
View File

@ -2660,6 +2660,8 @@ msvc_flags(){
-fno-common) ;;
-fno-signed-zeros) ;;
-fPIC) ;;
-mthumb) ;;
-march=*) ;;
-lz) echo zlib.lib ;;
-lavifil32) echo vfw32.lib ;;
-lavicap32) echo vfw32.lib user32.lib ;;

18
libavcodec/mpeg12dec.c
View File

@ -2121,7 +2121,7 @@ static int decode_chunks(AVCodecContext *avctx,
const uint8_t *buf_ptr = buf;
const uint8_t *buf_end = buf + buf_size;
int ret, input_size;
int last_code = 0;
int last_code = 0, skip_frame = 0;
int picture_start_code_seen = 0;
for (;;) {
@ -2129,7 +2129,7 @@ static int decode_chunks(AVCodecContext *avctx,
uint32_t start_code = -1;
buf_ptr = avpriv_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 (!skip_frame) {
if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE)) {
int i;
av_assert0(avctx->thread_count > 1);
@ -2316,20 +2316,27 @@ static int decode_chunks(AVCodecContext *avctx,
if (s2->last_picture_ptr == NULL) {
/* Skip B-frames if we do not have reference frames and gop is not closed */
if (s2->pict_type == AV_PICTURE_TYPE_B) {
if (!s2->closed_gop)
if (!s2->closed_gop) {
skip_frame = 1;
break;
}
}
}
if (s2->pict_type == AV_PICTURE_TYPE_I || (s2->flags2 & CODEC_FLAG2_SHOW_ALL))
s->sync=1;
if (s2->next_picture_ptr == NULL) {
/* Skip P-frames if we do not have a reference frame or we have an invalid header. */
if (s2->pict_type == AV_PICTURE_TYPE_P && !s->sync) break;
if (s2->pict_type == AV_PICTURE_TYPE_P && !s->sync) {
skip_frame = 1;
break;
}
}
if ((avctx->skip_frame >= AVDISCARD_NONREF && s2->pict_type == AV_PICTURE_TYPE_B) ||
(avctx->skip_frame >= AVDISCARD_NONKEY && s2->pict_type != AV_PICTURE_TYPE_I) ||
avctx->skip_frame >= AVDISCARD_ALL)
avctx->skip_frame >= AVDISCARD_ALL) {
skip_frame = 1;
break;
}
if (!s->mpeg_enc_ctx_allocated)
break;
@ -2347,6 +2354,7 @@ static int decode_chunks(AVCodecContext *avctx,
}
if (s2->first_slice) {
skip_frame = 0;
s2->first_slice = 0;
if (mpeg_field_start(s2, buf, buf_size) < 0)
return -1;