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h263dec: Propagate AV_LOG_ERRORs from slice decoding through frame decoding with sufficient error recognition

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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
This commit is contained in:
Dustin Brody 2011-07-27 19:09:45 -04:00 committed by Ronald S. Bultje
parent f5f004bc5a
commit 2a11952f45
4 changed files with 7 additions and 3 deletions
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2
doc/ffmpeg.texi
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@ -470,6 +470,8 @@ FF_ER_COMPLIANT
FF_ER_AGGRESSIVE
@item 4
FF_ER_VERY_AGGRESSIVE
@item 5
FF_ER_EXPLODE
@end table
@item -ec @var{bit_mask}

1
libavcodec/avcodec.h
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@ -1446,6 +1446,7 @@ typedef struct AVCodecContext {
#define FF_ER_COMPLIANT 2
#define FF_ER_AGGRESSIVE 3
#define FF_ER_VERY_AGGRESSIVE 4
#define FF_ER_EXPLODE 5
/**
* Called at the beginning of each frame to get a buffer for it.

6
libavcodec/h263dec.c
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@ -638,7 +638,7 @@ retry:
s->mb_x=0;
s->mb_y=0;
decode_slice(s);
ret = decode_slice(s);
while(s->mb_y<s->mb_height){
if(s->msmpeg4_version){
if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)
@ -654,7 +654,7 @@ retry:
if(s->msmpeg4_version<4 && s->h263_pred)
ff_mpeg4_clean_buffers(s);
decode_slice(s);
if (decode_slice(s) < 0) ret = AVERROR_INVALIDDATA;
}
if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type==AV_PICTURE_TYPE_I)
@ -722,7 +722,7 @@ assert(s->current_picture.pict_type == s->pict_type);
av_log(avctx, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);
#endif
return get_consumed_bytes(s, buf_size);
return (ret && avctx->error_recognition >= FF_ER_EXPLODE)?ret:get_consumed_bytes(s, buf_size);
}
AVCodec ff_h263_decoder = {

1
libavcodec/options.c
View File

@ -184,6 +184,7 @@ static const AVOption options[]={
{"compliant", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_COMPLIANT }, INT_MIN, INT_MAX, V|D, "er"},
{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_AGGRESSIVE }, INT_MIN, INT_MAX, V|D, "er"},
{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_VERY_AGGRESSIVE }, INT_MIN, INT_MAX, V|D, "er"},
{"explode", "abort decoding on error recognition", 0, FF_OPT_TYPE_CONST, {.dbl = FF_ER_EXPLODE }, INT_MIN, INT_MAX, V|D, "er"},
{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},