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Code Issues Releases Activity

avcodec/iff: remove palette swapping for anim

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It appears it is wrong.
This commit is contained in:
Paul B Mahol 2016-08-15 13:21:47 +02:00
parent ce5ba77079
commit 0ea03dbbf9
1 changed files with 8 additions and 12 deletions
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20
libavcodec/iff.c
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@ -65,7 +65,7 @@ typedef struct IffContext {
GetByteContext gb; GetByteContext gb;
uint8_t *video[2]; uint8_t *video[2];
unsigned video_size; unsigned video_size;
uint32_t *pal[2]; uint32_t *pal;
} IffContext; } IffContext;
#define LUT8_PART(plane, v) \ #define LUT8_PART(plane, v) \
@ -243,7 +243,7 @@ static int extract_header(AVCodecContext *const avctx,
break; break;
} else if (chunk_id == MKTAG('C', 'M', 'A', 'P')) { } else if (chunk_id == MKTAG('C', 'M', 'A', 'P')) {
int count = data_size / 3; int count = data_size / 3;
uint32_t *pal = s->pal[0]; uint32_t *pal = s->pal;
if (count > 256) if (count > 256)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
@ -373,8 +373,7 @@ static av_cold int decode_end(AVCodecContext *avctx)
av_freep(&s->ham_palbuf); av_freep(&s->ham_palbuf);
av_freep(&s->video[0]); av_freep(&s->video[0]);
av_freep(&s->video[1]); av_freep(&s->video[1]);
av_freep(&s->pal[0]); av_freep(&s->pal);
av_freep(&s->pal[1]);
return 0; return 0;
} }
@ -424,9 +423,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
s->video_size = FFALIGN(avctx->width, 2) * avctx->height * s->bpp; s->video_size = FFALIGN(avctx->width, 2) * avctx->height * s->bpp;
s->video[0] = av_calloc(FFALIGN(avctx->width, 2) * avctx->height, s->bpp); s->video[0] = av_calloc(FFALIGN(avctx->width, 2) * avctx->height, s->bpp);
s->video[1] = av_calloc(FFALIGN(avctx->width, 2) * avctx->height, s->bpp); s->video[1] = av_calloc(FFALIGN(avctx->width, 2) * avctx->height, s->bpp);
s->pal[0] = av_calloc(256, sizeof(*s->pal[0])); s->pal = av_calloc(256, sizeof(*s->pal));
s->pal[1] = av_calloc(256, sizeof(*s->pal[1])); if (!s->video[0] || !s->video[1] || !s->pal)
if (!s->video[0] || !s->video[1] || !s->pal[0] || !s->pal[1])
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
} }
@ -1457,7 +1455,7 @@ static int decode_frame(AVCodecContext *avctx,
if (s->compression <= 0xff && (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M'))) { if (s->compression <= 0xff && (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M'))) {
if (avctx->pix_fmt == AV_PIX_FMT_PAL8) if (avctx->pix_fmt == AV_PIX_FMT_PAL8)
memcpy(s->pal[0], s->frame->data[1], 256 * 4); memcpy(s->pal, s->frame->data[1], 256 * 4);
} }
switch (s->compression) { switch (s->compression) {
@ -1689,7 +1687,6 @@ static int decode_frame(AVCodecContext *avctx,
} }
if (s->compression <= 0xff && (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M'))) { if (s->compression <= 0xff && (avctx->codec_tag == MKTAG('A', 'N', 'I', 'M'))) {
memcpy(s->pal[1], s->pal[0], 256 * 4);
memcpy(s->video[1], s->video[0], s->video_size); memcpy(s->video[1], s->video[0], s->video_size);
} }
@ -1704,14 +1701,14 @@ static int decode_frame(AVCodecContext *avctx,
buf += s->planesize; buf += s->planesize;
} }
} }
memcpy(frame->data[1], s->pal[0], 256 * 4); memcpy(frame->data[1], s->pal, 256 * 4);
} else if (s->ham) { } else if (s->ham) {
int i, count = 1 << s->ham; int i, count = 1 << s->ham;
buf = s->video[0]; buf = s->video[0];
memset(s->ham_palbuf, 0, (1 << s->ham) * 2 * sizeof(uint32_t)); memset(s->ham_palbuf, 0, (1 << s->ham) * 2 * sizeof(uint32_t));
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
s->ham_palbuf[i*2+1] = s->pal[0][i]; s->ham_palbuf[i*2+1] = s->pal[i];
} }
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
uint32_t tmp = i << (8 - s->ham); uint32_t tmp = i << (8 - s->ham);
@ -1742,7 +1739,6 @@ static int decode_frame(AVCodecContext *avctx,
if (!s->is_brush) { if (!s->is_brush) {
FFSWAP(uint8_t *, s->video[0], s->video[1]); FFSWAP(uint8_t *, s->video[0], s->video[1]);
FFSWAP(uint32_t *, s->pal[0], s->pal[1]);
} }
} }