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ffv1: add 1 status byte to slices in in case crcs are stored too.

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This will allow storing of information about corrected and uncorrectable
errors.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-25 12:05:06 +02:00
parent 0c27854532
commit c24ca7b88e
1 changed files with 4 additions and 2 deletions
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6
libavcodec/ffv1.c
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@ -1298,7 +1298,9 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
bytes+=3; bytes+=3;
} }
if(f->ec){ if(f->ec){
unsigned v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes); unsigned v;
buf_p[bytes++] = 0;
v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes);
AV_WL32(buf_p + bytes, v); bytes += 4; AV_WL32(buf_p + bytes, v); bytes += 4;
} }
buf_p += bytes; buf_p += bytes;
@ -1987,7 +1989,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
buf_p= buf + buf_size; buf_p= buf + buf_size;
for(i=f->slice_count-1; i>=0; i--){ for(i=f->slice_count-1; i>=0; i--){
FFV1Context *fs= f->slice_context[i]; FFV1Context *fs= f->slice_context[i];
int trailer = 3 + 4*!!f->ec; int trailer = 3 + 5*!!f->ec;
int v; int v;
if(i || f->ec) v = AV_RB24(buf_p-trailer)+trailer; if(i || f->ec) v = AV_RB24(buf_p-trailer)+trailer;