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avcodec/mjpegenc_common: Use ff_mpv_reallocate_putbitbuffer()

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Fixes assertion failure
Fixes Ticket4396

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-25 14:35:35 +02:00
parent 00f3bb2ef2
commit c50904fd78
2 changed files with 12 additions and 2 deletions
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12
libavcodec/mjpegenc_common.c
View File

@ -342,20 +342,30 @@ void ff_mjpeg_escape_FF(PutBitContext *pb, int start)
} }
} }
void ff_mjpeg_encode_stuffing(MpegEncContext *s) int ff_mjpeg_encode_stuffing(MpegEncContext *s)
{ {
int i; int i;
PutBitContext *pbc = &s->pb; PutBitContext *pbc = &s->pb;
int mb_y = s->mb_y - !s->mb_x; int mb_y = s->mb_y - !s->mb_x;
int ret = ff_mpv_reallocate_putbitbuffer(s, put_bits_count(&s->pb) / 8 + 100,
put_bits_count(&s->pb) / 4 + 1000);
if (ret < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Buffer reallocation failed\n");
goto fail;
}
ff_mjpeg_escape_FF(pbc, s->esc_pos); ff_mjpeg_escape_FF(pbc, s->esc_pos);
if((s->avctx->active_thread_type & FF_THREAD_SLICE) && mb_y < s->mb_height) if((s->avctx->active_thread_type & FF_THREAD_SLICE) && mb_y < s->mb_height)
put_marker(pbc, RST0 + (mb_y&7)); put_marker(pbc, RST0 + (mb_y&7));
s->esc_pos = put_bits_count(pbc) >> 3; s->esc_pos = put_bits_count(pbc) >> 3;
fail:
for(i=0; i<3; i++) for(i=0; i<3; i++)
s->last_dc[i] = 128 << s->intra_dc_precision; s->last_dc[i] = 128 << s->intra_dc_precision;
return ret;
} }
void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits) void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits)

2
libavcodec/mjpegenc_common.h
View File

@ -34,7 +34,7 @@ void ff_mjpeg_encode_picture_header(AVCodecContext *avctx, PutBitContext *pb,
uint16_t chroma_intra_matrix[64]); uint16_t chroma_intra_matrix[64]);
void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits); void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits);
void ff_mjpeg_escape_FF(PutBitContext *pb, int start); void ff_mjpeg_escape_FF(PutBitContext *pb, int start);
void ff_mjpeg_encode_stuffing(MpegEncContext *s); int ff_mjpeg_encode_stuffing(MpegEncContext *s);
void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[3], int vsample[3]); void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[3], int vsample[3]);
void ff_mjpeg_encode_dc(PutBitContext *pb, int val, void ff_mjpeg_encode_dc(PutBitContext *pb, int val,