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tiffenc: properly forward error codes in encode_frame().

This commit is contained in:
Anton Khirnov 2012-02-23 08:51:45 +01:00
parent 2257f66ec5
commit 62acb4937e
1 changed files with 12 additions and 12 deletions
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24
libavcodec/tiffenc.c
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@ -207,7 +207,6 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
AVFrame *pict = data;
AVFrame *const p = (AVFrame *) & s->picture;
int i;
int n;
uint8_t *ptr = buf;
uint8_t *offset;
uint32_t strips;
@ -216,7 +215,7 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
int bytes_per_row;
uint32_t res[2] = { 72, 1 }; // image resolution (72/1)
static const uint16_t bpp_tab[] = { 8, 8, 8, 8 };
int ret = -1;
int ret;
int is_yuv = 0;
uint8_t *yuv_line = NULL;
int shift_h, shift_v;
@ -332,13 +331,13 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
p->data[0] + j * p->linesize[0], bytes_per_row);
zn += bytes_per_row;
}
n = encode_strip(s, zbuf, ptr, zn, s->compr);
ret = encode_strip(s, zbuf, ptr, zn, s->compr);
av_free(zbuf);
if (n<0) {
if (ret < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
goto fail;
}
ptr += n;
ptr += ret;
strip_sizes[0] = ptr - buf - strip_offsets[0];
} else
#endif
@ -355,20 +354,19 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
}
if (is_yuv){
pack_yuv(s, yuv_line, i);
n = encode_strip(s, yuv_line, ptr, bytes_per_row, s->compr);
ret = encode_strip(s, yuv_line, ptr, bytes_per_row, s->compr);
i += s->subsampling[1] - 1;
}
else
n = encode_strip(s, p->data[0] + i * p->linesize[0],
ret = encode_strip(s, p->data[0] + i * p->linesize[0],
ptr, bytes_per_row, s->compr);
if (n < 0) {
if (ret < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
goto fail;
}
strip_sizes[i / s->rps] += n;
ptr += n;
strip_sizes[i / s->rps] += ret;
ptr += ret;
if(s->compr == TIFF_LZW && (i==s->height-1 || i%s->rps == s->rps-1)){
int ret;
ret = ff_lzw_encode_flush(s->lzws, flush_put_bits);
strip_sizes[(i / s->rps )] += ret ;
ptr += ret;
@ -422,8 +420,10 @@ static int encode_frame(AVCodecContext * avctx, unsigned char *buf,
}
bytestream_put_le32(&offset, ptr - buf); // write offset to dir
if (check_size(s, 6 + s->num_entries * 12))
if (check_size(s, 6 + s->num_entries * 12)) {
ret = AVERROR(EINVAL);
goto fail;
}
bytestream_put_le16(&ptr, s->num_entries); // write tag count
bytestream_put_buffer(&ptr, s->entries, s->num_entries * 12);
bytestream_put_le32(&ptr, 0);