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Code Issues Releases Activity

avcodec/mjpegdec: Support 24111100 pix fmt id

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Fixes 129533924_640.jpg

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-10-21 16:41:47 +02:00
parent 1372c55786
commit 059c842818
1 changed files with 13 additions and 4 deletions
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17
libavcodec/mjpegdec.c
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@ -515,12 +515,15 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
break;
case 0x22111100:
case 0x42111100:
case 0x24111100:
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV420P : AV_PIX_FMT_YUVJ420P;
else s->avctx->pix_fmt = AV_PIX_FMT_YUV420P16;
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
if (pix_fmt_id == 0x42111100) {
s->upscale_h = 6;
s->chroma_height = (s->height + 1) / 2;
} else if (pix_fmt_id == 0x24111100) {
s->upscale_v = 6;
}
break;
case 0x41111100:
@ -2124,21 +2127,27 @@ the_end:
avctx->pix_fmt == AV_PIX_FMT_YUV444P ||
avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
avctx->pix_fmt == AV_PIX_FMT_YUV420P ||
avctx->pix_fmt == AV_PIX_FMT_YUVA444P ||
avctx->pix_fmt == AV_PIX_FMT_GBRAP
);
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &hshift, &vshift);
for (p = 0; p < 4; p++) {
uint8_t *dst = &((uint8_t *)s->picture_ptr->data[p])[(s->height - 1) * s->linesize[p]];
uint8_t *dst;
int w = s->width;
int h = s->height;
if (!(s->upscale_v & (1<<p)))
continue;
if (p==1 || p==2)
if (p==1 || p==2) {
w = FF_CEIL_RSHIFT(w, hshift);
for (i = s->height - 1; i; i--) {
h = FF_CEIL_RSHIFT(h, vshift);
}
dst = &((uint8_t *)s->picture_ptr->data[p])[(h - 1) * s->linesize[p]];
for (i = h - 1; i; i--) {
uint8_t *src1 = &((uint8_t *)s->picture_ptr->data[p])[i / 2 * s->linesize[p]];
uint8_t *src2 = &((uint8_t *)s->picture_ptr->data[p])[(i + 1) / 2 * s->linesize[p]];
if (src1 == src2 || i == s->height - 1) {
if (src1 == src2 || i == h - 1) {
memcpy(dst, src1, w);
} else {
for (index = 0; index < w; index++)