#include "mjpeg.h"
#include "mjpegdec.h"
#include "jpeglsdec.h"
+#include "profiles.h"
#include "put_bits.h"
#include "tiff.h"
#include "exif.h"
huff_code, 2, 2, huff_sym, 2, 2, use_static);
}
-static int build_basic_mjpeg_vlc(MJpegDecodeContext *s)
+static int init_default_huffman_tables(MJpegDecodeContext *s)
{
- int ret;
-
- if ((ret = build_vlc(&s->vlcs[0][0], avpriv_mjpeg_bits_dc_luminance,
- avpriv_mjpeg_val_dc, 12, 0, 0)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[0][1], avpriv_mjpeg_bits_dc_chrominance,
- avpriv_mjpeg_val_dc, 12, 0, 0)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[1][0], avpriv_mjpeg_bits_ac_luminance,
- avpriv_mjpeg_val_ac_luminance, 251, 0, 1)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[1][1], avpriv_mjpeg_bits_ac_chrominance,
- avpriv_mjpeg_val_ac_chrominance, 251, 0, 1)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[2][0], avpriv_mjpeg_bits_ac_luminance,
- avpriv_mjpeg_val_ac_luminance, 251, 0, 0)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[2][1], avpriv_mjpeg_bits_ac_chrominance,
- avpriv_mjpeg_val_ac_chrominance, 251, 0, 0)) < 0)
- return ret;
+ static const struct {
+ int class;
+ int index;
+ const uint8_t *bits;
+ const uint8_t *values;
+ int codes;
+ int length;
+ } ht[] = {
+ { 0, 0, avpriv_mjpeg_bits_dc_luminance,
+ avpriv_mjpeg_val_dc, 12, 12 },
+ { 0, 1, avpriv_mjpeg_bits_dc_chrominance,
+ avpriv_mjpeg_val_dc, 12, 12 },
+ { 1, 0, avpriv_mjpeg_bits_ac_luminance,
+ avpriv_mjpeg_val_ac_luminance, 251, 162 },
+ { 1, 1, avpriv_mjpeg_bits_ac_chrominance,
+ avpriv_mjpeg_val_ac_chrominance, 251, 162 },
+ { 2, 0, avpriv_mjpeg_bits_ac_luminance,
+ avpriv_mjpeg_val_ac_luminance, 251, 162 },
+ { 2, 1, avpriv_mjpeg_bits_ac_chrominance,
+ avpriv_mjpeg_val_ac_chrominance, 251, 162 },
+ };
+ int i, ret;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(ht); i++) {
+ ret = build_vlc(&s->vlcs[ht[i].class][ht[i].index],
+ ht[i].bits, ht[i].values, ht[i].codes,
+ 0, ht[i].class == 1);
+ if (ret < 0)
+ return ret;
+ if (ht[i].class < 2) {
+ memcpy(s->raw_huffman_lengths[ht[i].class][ht[i].index],
+ ht[i].bits + 1, 16);
+ memcpy(s->raw_huffman_values[ht[i].class][ht[i].index],
+ ht[i].values, ht[i].length);
+ }
+ }
return 0;
}
avctx->colorspace = AVCOL_SPC_BT470BG;
s->hwaccel_pix_fmt = s->hwaccel_sw_pix_fmt = AV_PIX_FMT_NONE;
- if ((ret = build_basic_mjpeg_vlc(s)) < 0)
+ if ((ret = init_default_huffman_tables(s)) < 0)
return ret;
if (s->extern_huff) {
if (ff_mjpeg_decode_dht(s)) {
av_log(avctx, AV_LOG_ERROR,
"error using external huffman table, switching back to internal\n");
- build_basic_mjpeg_vlc(s);
+ init_default_huffman_tables(s);
}
}
if (avctx->field_order == AV_FIELD_BB) { /* quicktime icefloe 019 */
memset(s->upscale_h, 0, sizeof(s->upscale_h));
memset(s->upscale_v, 0, sizeof(s->upscale_v));
- /* XXX: verify len field validity */
len = get_bits(&s->gb, 16);
bits = get_bits(&s->gb, 8);
av_log(s->avctx, AV_LOG_DEBUG, "sof0: picture: %dx%d\n", width, height);
if (av_image_check_size(width, height, 0, s->avctx) < 0)
return AVERROR_INVALIDDATA;
+ if (s->buf_size && (width + 7) / 8 * ((height + 7) / 8) > s->buf_size * 4LL)
+ return AVERROR_INVALIDDATA;
nb_components = get_bits(&s->gb, 8);
if (nb_components <= 0 ||
"bits/component or 16-bit gray");
return AVERROR_PATCHWELCOME;
}
+ if (len != 8 + 3 * nb_components) {
+ av_log(s->avctx, AV_LOG_ERROR, "decode_sof0: error, len(%d) mismatch %d components\n", len, nb_components);
+ return AVERROR_INVALIDDATA;
+ }
+
s->nb_components = nb_components;
s->h_max = 1;
s->v_max = 1;
if (s->rgb)
s->avctx->pix_fmt = s->bits <= 9 ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_BGR48;
else {
- if (s->component_id[0] == 'Q' && s->component_id[1] == 'F' && s->component_id[2] == 'A') {
+ if ( s->adobe_transform == 0
+ || s->component_id[0] == 'R' - 1 && s->component_id[1] == 'G' - 1 && s->component_id[2] == 'B' - 1) {
s->avctx->pix_fmt = s->bits <= 8 ? AV_PIX_FMT_GBRP : AV_PIX_FMT_GBRP16;
} else {
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV444P : AV_PIX_FMT_YUVJ444P;
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
break;
case 0x22111100:
+ case 0x23111100:
case 0x42111100:
case 0x24111100:
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV420P : AV_PIX_FMT_YUVJ420P;
if (s->bits > 8)
goto unk_pixfmt;
s->upscale_v[1] = s->upscale_v[2] = 1;
+ } else if (pix_fmt_id == 0x23111100) {
+ if (s->bits > 8)
+ goto unk_pixfmt;
+ s->upscale_v[1] = s->upscale_v[2] = 2;
}
break;
case 0x41111100:
avpriv_report_missing_feature(s->avctx, "Lowres for weird subsampling");
return AVERROR_PATCHWELCOME;
}
+ if ((AV_RB32(s->upscale_h) || AV_RB32(s->upscale_v)) && s->progressive && s->avctx->pix_fmt == AV_PIX_FMT_GBRP) {
+ avpriv_report_missing_feature(s->avctx, "progressive for weird subsampling");
+ return AVERROR_PATCHWELCOME;
+ }
if (s->ls) {
memset(s->upscale_h, 0, sizeof(s->upscale_h));
memset(s->upscale_v, 0, sizeof(s->upscale_v));
s->width, s->height, s->linesize[0], s->linesize[1],
s->interlaced, s->avctx->height);
- if (len != (8 + (3 * nb_components)))
- av_log(s->avctx, AV_LOG_DEBUG, "decode_sof0: error, len(%d) mismatch\n", len);
}
if ((s->rgb && !s->lossless && !s->ls) ||
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
int modified_predictor = predictor;
+ if (get_bits_left(&s->gb) < 1) {
+ av_log(s->avctx, AV_LOG_ERROR, "bitstream end in rgb_scan\n");
+ return AVERROR_INVALIDDATA;
+ }
+
if (s->restart_interval && !s->restart_count){
s->restart_count = s->restart_interval;
resync_mb_x = mb_x;
return -1;
left[i] = buffer[mb_x][i] =
- mask & (pred + (dc * (1 << point_transform)));
+ mask & (pred + (unsigned)(dc * (1 << point_transform)));
}
if (s->restart_interval && !--s->restart_count) {
|| v * mb_y + y >= s->height) {
// Nothing to do
} else if (bits<=8) {
- ptr = s->picture_ptr->data[c] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap
- if(y==0 && toprow){
- if(x==0 && leftcol){
- pred= 1 << (bits - 1);
- }else{
- pred= ptr[-1];
- }
- }else{
- if(x==0 && leftcol){
- pred= ptr[-linesize];
+ ptr = s->picture_ptr->data[c] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap
+ if(y==0 && toprow){
+ if(x==0 && leftcol){
+ pred= 1 << (bits - 1);
+ }else{
+ pred= ptr[-1];
+ }
}else{
- PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);
+ if(x==0 && leftcol){
+ pred= ptr[-linesize];
+ }else{
+ PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);
+ }
}
- }
- if (s->interlaced && s->bottom_field)
- ptr += linesize >> 1;
- pred &= mask;
- *ptr= pred + ((unsigned)dc << point_transform);
+ if (s->interlaced && s->bottom_field)
+ ptr += linesize >> 1;
+ pred &= mask;
+ *ptr= pred + ((unsigned)dc << point_transform);
}else{
ptr16 = (uint16_t*)(s->picture_ptr->data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x)); //FIXME optimize this crap
if(y==0 && toprow){
s->h_scount[i] = s->h_count[index];
s->v_scount[i] = s->v_count[index];
- if(nb_components == 3 && s->nb_components == 3 && s->avctx->pix_fmt == AV_PIX_FMT_GBR24P)
- index = (i+2)%3;
- if(nb_components == 1 && s->nb_components == 3 && s->avctx->pix_fmt == AV_PIX_FMT_GBR24P)
+ if((nb_components == 1 || nb_components == 3) && s->nb_components == 3 && s->avctx->pix_fmt == AV_PIX_FMT_GBR24P)
index = (index+2)%3;
s->comp_index[i] = index;
int ret = 0;
int is16bit;
+ s->buf_size = buf_size;
+
av_dict_free(&s->exif_metadata);
av_freep(&s->stereo3d);
s->adobe_transform = -1;
w = AV_CEIL_RSHIFT(w, hshift);
h = AV_CEIL_RSHIFT(h, vshift);
}
- if (s->upscale_v[p])
+ if (s->upscale_v[p] == 1)
h = (h+1)>>1;
av_assert0(w > 0);
for (i = 0; i < h; i++) {
}
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 == h - 1) {
+ uint8_t *src1 = &((uint8_t *)s->picture_ptr->data[p])[i * s->upscale_v[p] / (s->upscale_v[p] + 1) * s->linesize[p]];
+ uint8_t *src2 = &((uint8_t *)s->picture_ptr->data[p])[(i + 1) * s->upscale_v[p] / (s->upscale_v[p] + 1) * s->linesize[p]];
+ if (s->upscale_v[p] != 2 && (src1 == src2 || i == h - 1)) {
memcpy(dst, src1, w);
} else {
for (index = 0; index < w; index++)
.capabilities = AV_CODEC_CAP_DR1,
.max_lowres = 3,
.priv_class = &mjpegdec_class,
+ .profiles = NULL_IF_CONFIG_SMALL(ff_mjpeg_profiles),
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
.hw_configs = (const AVCodecHWConfigInternal*[]) {
projects / ffmpeg / blobdiff