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Merge commit '016c5b066de08a93a5f6b5beb0ef377356b35cde'

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* commit '016c5b066de08a93a5f6b5beb0ef377356b35cde':
  tiff: refactor fax support in a separate function

Conflicts:
	libavcodec/tiff.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-06-08 11:31:31 +02:00
commit 1fec361f35
1 changed files with 39 additions and 37 deletions
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76
libavcodec/tiff.c
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@ -470,6 +470,44 @@ static int tiff_unpack_zlib(TiffContext *s, uint8_t *dst, int stride,
}
#endif
static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
const uint8_t *src, int size, int width, int lines)
{
int i, ret = 0;
int line;
uint8_t *src2 = av_malloc((unsigned)size +
FF_INPUT_BUFFER_PADDING_SIZE);
if (!src2) {
av_log(s->avctx, AV_LOG_ERROR,
"Error allocating temporary buffer\n");
return AVERROR(ENOMEM);
}
if (s->fax_opts & 2) {
av_log(s->avctx, AV_LOG_ERROR,
"Uncompressed fax mode is not supported (yet)\n");
av_free(src2);
return AVERROR_INVALIDDATA;
}
if (!s->fill_order) {
memcpy(src2, src, size);
} else {
for (i = 0; i < size; i++)
src2[i] = ff_reverse[src[i]];
}
memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
s->compr, s->fax_opts);
if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
for (line = 0; line < lines; line++) {
horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
dst += stride;
}
av_free(src2);
return ret;
}
static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
const uint8_t *src, int size, int lines)
{
@ -510,43 +548,7 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
if (s->compr == TIFF_CCITT_RLE ||
s->compr == TIFF_G3 ||
s->compr == TIFF_G4) {
int i, ret = 0;
uint8_t *src2 = av_malloc((unsigned)size +
FF_INPUT_BUFFER_PADDING_SIZE);
if (!src2) {
av_log(s->avctx, AV_LOG_ERROR,
"Error allocating temporary buffer\n");
return AVERROR(ENOMEM);
}
if (s->fax_opts & 2) {
av_log(s->avctx, AV_LOG_ERROR,
"Uncompressed fax mode is not supported (yet)\n");
av_free(src2);
return AVERROR_INVALIDDATA;
}
if (!s->fill_order) {
memcpy(src2, src, size);
} else {
for (i = 0; i < size; i++)
src2[i] = ff_reverse[src[i]];
}
memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
switch (s->compr) {
case TIFF_CCITT_RLE:
case TIFF_G3:
case TIFF_G4:
ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
s->compr, s->fax_opts);
break;
}
if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
for (line = 0; line < lines; line++) {
horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
dst += stride;
}
av_free(src2);
return ret;
return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
}
for (line = 0; line < lines; line++) {
if (src - ssrc > size) {