int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
{
- int len, nb_components, i, width, height, bits, pix_fmt_id, ret;
+ int len, nb_components, i, width, height, bits, ret;
+ unsigned pix_fmt_id;
int h_count[MAX_COMPONENTS];
int v_count[MAX_COMPONENTS];
s->avctx->bits_per_raw_sample =
bits = get_bits(&s->gb, 8);
+ if (bits > 16 || bits < 1) {
+ av_log(s->avctx, AV_LOG_ERROR, "bits %d is invalid\n", bits);
+ return AVERROR_INVALIDDATA;
+ }
+
if (s->pegasus_rct)
bits = 9;
if (bits == 9 && !s->pegasus_rct)
else if (!s->lossless)
s->rgb = 0;
/* XXX: not complete test ! */
- pix_fmt_id = (s->h_count[0] << 28) | (s->v_count[0] << 24) |
+ pix_fmt_id = ((unsigned)s->h_count[0] << 28) | (s->v_count[0] << 24) |
(s->h_count[1] << 20) | (s->v_count[1] << 16) |
(s->h_count[2] << 12) | (s->v_count[2] << 8) |
(s->h_count[3] << 4) | s->v_count[3];
av_assert0(s->nb_components == 4);
break;
case 0x22111122:
+ case 0x22111111:
if (s->adobe_transform == 0 && s->bits <= 8) {
s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
- s->upscale_v = 6;
- s->upscale_h = 6;
- s->chroma_height = s->height;
+ s->upscale_v |= 6;
+ s->upscale_h |= 6;
} else if (s->adobe_transform == 2 && s->bits <= 8) {
s->avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
- s->upscale_v = 6;
- s->upscale_h = 6;
- s->chroma_height = s->height;
+ s->upscale_v |= 6;
+ s->upscale_h |= 6;
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
} else {
if (s->bits <= 8) s->avctx->pix_fmt = AV_PIX_FMT_YUVA420P;
else
goto unk_pixfmt;
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
- s->chroma_height = s->height;
break;
case 0x22221100:
case 0x22112200:
else
goto unk_pixfmt;
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
- s->chroma_height = (s->height + 1) / 2;
break;
case 0x11000000:
case 0x13000000:
break;
case 0x12111100:
case 0x14121200:
+ case 0x14111100:
case 0x22211100:
case 0x22112100:
- if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV440P : AV_PIX_FMT_YUVJ440P;
- else
- goto unk_pixfmt;
- s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
- s->chroma_height = (s->height + 1) / 2;
+ if (s->component_id[0] == 'Q' && s->component_id[1] == 'F' && s->component_id[2] == 'A') {
+ if (s->bits <= 8) s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
+ else
+ goto unk_pixfmt;
+ s->upscale_v |= 3;
+ } else {
+ if (pix_fmt_id == 0x14111100)
+ s->upscale_v |= 6;
+ if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV440P : AV_PIX_FMT_YUVJ440P;
+ else
+ goto unk_pixfmt;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ }
break;
case 0x21111100:
- if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV422P : AV_PIX_FMT_YUVJ422P;
- else s->avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
- s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ if (s->component_id[0] == 'Q' && s->component_id[1] == 'F' && s->component_id[2] == 'A') {
+ if (s->bits <= 8) s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
+ else
+ goto unk_pixfmt;
+ s->upscale_h |= 3;
+ } else {
+ if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV422P : AV_PIX_FMT_YUVJ422P;
+ else s->avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ }
break;
case 0x22121100:
case 0x22111200:
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) {
+ if (s->bits > 8)
+ goto unk_pixfmt;
s->upscale_h = 6;
- s->chroma_height = (s->height + 1) / 2;
+ } else if (pix_fmt_id == 0x24111100) {
+ if (s->bits > 8)
+ goto unk_pixfmt;
+ s->upscale_v = 6;
}
break;
case 0x41111100:
break;
default:
unk_pixfmt:
- av_log(s->avctx, AV_LOG_ERROR, "Unhandled pixel format 0x%x\n", pix_fmt_id);
+ av_log(s->avctx, AV_LOG_ERROR, "Unhandled pixel format 0x%x bits:%d\n", pix_fmt_id, s->bits);
s->upscale_h = s->upscale_v = 0;
return AVERROR_PATCHWELCOME;
}
}
if (!Al) {
+ // s->coefs_finished is a bitmask for coefficients coded
+ // ss and se are parameters telling start and end coefficients
s->coefs_finished[c] |= (2ULL << se) - (1ULL << ss);
last_scan = !~s->coefs_finished[c];
}
}
if (id == AV_RB32("LJIF")) {
+ int rgb = s->rgb;
+ int pegasus_rct = s->pegasus_rct;
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
av_log(s->avctx, AV_LOG_INFO,
"Pegasus lossless jpeg header found\n");
skip_bits(&s->gb, 16); /* unknown always 0? */
switch (i=get_bits(&s->gb, 8)) {
case 1:
- s->rgb = 1;
- s->pegasus_rct = 0;
+ rgb = 1;
+ pegasus_rct = 0;
break;
case 2:
- s->rgb = 1;
- s->pegasus_rct = 1;
+ rgb = 1;
+ pegasus_rct = 1;
break;
default:
av_log(s->avctx, AV_LOG_ERROR, "unknown colorspace %d\n", i);
}
+
len -= 9;
+ if (s->got_picture)
+ if (rgb != s->rgb || pegasus_rct != s->pegasus_rct) {
+ av_log(s->avctx, AV_LOG_WARNING, "Mismatching LJIF tag\n");
+ goto out;
+ }
+
+ s->rgb = rgb;
+ s->pegasus_rct = pegasus_rct;
+
goto out;
}
if (id == AV_RL32("colr") && len > 0) {
avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
avctx->pix_fmt == AV_PIX_FMT_YUV420P ||
avctx->pix_fmt == AV_PIX_FMT_YUV420P16||
+ avctx->pix_fmt == AV_PIX_FMT_YUVA420P ||
+ avctx->pix_fmt == AV_PIX_FMT_YUVA420P16||
+ avctx->pix_fmt == AV_PIX_FMT_GBRP ||
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 *line = s->picture_ptr->data[p];
int w = s->width;
+ int h = s->height;
if (!(s->upscale_h & (1<<p)))
continue;
- if (p==1 || p==2)
- w >>= hshift;
+ if (p==1 || p==2) {
+ w = FF_CEIL_RSHIFT(w, hshift);
+ h = FF_CEIL_RSHIFT(h, vshift);
+ }
+ if (s->upscale_v & (1<<p))
+ h = (h+1)>>1;
av_assert0(w > 0);
- for (i = 0; i < s->chroma_height; i++) {
+ for (i = 0; i < h; i++) {
if (is16bit) ((uint16_t*)line)[w - 1] = ((uint16_t*)line)[(w - 1) / 2];
else line[w - 1] = line[(w - 1) / 2];
for (index = w - 2; index > 0; index--) {
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_YUV440P ||
+ avctx->pix_fmt == AV_PIX_FMT_YUVJ440P ||
avctx->pix_fmt == AV_PIX_FMT_YUVA444P ||
+ avctx->pix_fmt == AV_PIX_FMT_YUVA420P ||
+ avctx->pix_fmt == AV_PIX_FMT_YUVA420P16||
+ avctx->pix_fmt == AV_PIX_FMT_GBRP ||
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++)
repositories / deb_ffmpeg.git / blobdiff