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libavcodec/exr : add support for compression in tile

This commit is contained in:
Martin Vignali 2016-04-04 22:00:31 +02:00 committed by Paul B Mahol
parent 062ad63064
commit 832861535a
1 changed files with 17 additions and 22 deletions
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39
libavcodec/exr.c
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@ -780,9 +780,9 @@ static int piz_uncompress(EXRContext *s, const uint8_t *src, int ssize,
int size = channel->pixel_type;
for (j = 0; j < size; j++)
wav_decode(ptr + j, s->xdelta, size, s->ysize,
s->xdelta * size, maxval);
ptr += s->xdelta * s->ysize * size;
wav_decode(ptr + j, s->xsize, size, s->ysize,
s->xsize * size, maxval);
ptr += s->xsize * s->ysize * size;
}
apply_lut(td->lut, tmp, dsize / sizeof(uint16_t));
@ -790,9 +790,9 @@ static int piz_uncompress(EXRContext *s, const uint8_t *src, int ssize,
out = td->uncompressed_data;
for (i = 0; i < s->ysize; i++)
for (j = 0; j < s->nb_channels; j++) {
uint16_t *in = tmp + j * s->xdelta * s->ysize + i * s->xdelta;
memcpy(out, in, s->xdelta * 2);
out += s->xdelta * 2;
uint16_t *in = tmp + j * s->xsize * s->ysize + i * s->xsize;
memcpy(out, in, s->xsize * 2);
out += s->xsize * 2;
}
return 0;
@ -830,11 +830,11 @@ static int pxr24_uncompress(EXRContext *s, const uint8_t *src,
switch (channel->pixel_type) {
case EXR_FLOAT:
ptr[0] = in;
ptr[1] = ptr[0] + s->xdelta;
ptr[2] = ptr[1] + s->xdelta;
in = ptr[2] + s->xdelta;
ptr[1] = ptr[0] + s->xsize;
ptr[2] = ptr[1] + s->xsize;
in = ptr[2] + s->xsize;
for (j = 0; j < s->xdelta; ++j) {
for (j = 0; j < s->xsize; ++j) {
uint32_t diff = (*(ptr[0]++) << 24) |
(*(ptr[1]++) << 16) |
(*(ptr[2]++) << 8);
@ -844,9 +844,9 @@ static int pxr24_uncompress(EXRContext *s, const uint8_t *src,
break;
case EXR_HALF:
ptr[0] = in;
ptr[1] = ptr[0] + s->xdelta;
in = ptr[1] + s->xdelta;
for (j = 0; j < s->xdelta; j++) {
ptr[1] = ptr[0] + s->xsize;
in = ptr[1] + s->xsize;
for (j = 0; j < s->xsize; j++) {
uint32_t diff = (*(ptr[0]++) << 8) | *(ptr[1]++);
pixel += diff;
@ -922,8 +922,8 @@ static int b44_uncompress(EXRContext *s, const uint8_t *src, int compressed_size
int c, iY, iX, y, x;
/* calc B44 block count */
nbB44BlockW = s->xdelta / 4;
if ((s->xdelta % 4) != 0)
nbB44BlockW = s->xsize / 4;
if ((s->xsize % 4) != 0)
nbB44BlockW++;
nbB44BlockH = s->ysize / 4;
@ -957,8 +957,8 @@ static int b44_uncompress(EXRContext *s, const uint8_t *src, int compressed_size
indexHgY = iY * 4;
for (y = indexHgY; y < FFMIN(indexHgY + 4, s->ysize); y++) {
for (x = indexHgX; x < FFMIN(indexHgX + 4, s->xdelta); x++) {
indexOut = (c * s->xdelta + y * s->xdelta * s->nb_channels + x) * 2;
for (x = indexHgX; x < FFMIN(indexHgX + 4, s->xsize); x++) {
indexOut = (c * s->xsize + y * s->xsize * s->nb_channels + x) * 2;
indexTmp = (y-indexHgY) * 4 + (x-indexHgX);
td->uncompressed_data[indexOut] = tmpBuffer[indexTmp] & 0xff;
td->uncompressed_data[indexOut + 1] = tmpBuffer[indexTmp] >> 8;
@ -1531,11 +1531,6 @@ static int decode_header(EXRContext *s)
av_log(s->avctx, AV_LOG_ERROR, "Invalid tile attribute.\n");
return AVERROR_INVALIDDATA;
}
if (s->compression != EXR_RAW) {
avpriv_report_missing_feature(s->avctx, "Compression in tile %d", s->compression);
return AVERROR_PATCHWELCOME;
}
}
s->scan_line_size = s->xdelta * s->current_channel_offset;