* aspecting, new decode_frame mechanism and apple mjpeg-b support
* by Alex Beregszaszi
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <assert.h>
#include "libavutil/imgutils.h"
+#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "dsputil.h"
if (!s->picture_ptr)
s->picture_ptr = &s->picture;
+ avcodec_get_frame_defaults(&s->picture);
s->avctx = avctx;
dsputil_init(&s->dsp, avctx);
init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size * 8);
if (ff_mjpeg_decode_dht(s)) {
av_log(avctx, AV_LOG_ERROR,
- "mjpeg: error using external huffman table\n");
- return AVERROR_INVALIDDATA;
+ "mjpeg: error using external huffman table, switching back to internal\n");
+ build_basic_mjpeg_vlc(s);
}
}
if (avctx->field_order == AV_FIELD_BB) { /* quicktime icefloe 019 */
{
int len, nb_components, i, width, height, pix_fmt_id;
+ s->cur_scan = 0;
+ s->upscale_h = s->upscale_v = 0;
+
/* XXX: verify len field validity */
len = get_bits(&s->gb, 16);
s->bits = get_bits(&s->gb, 8);
return -1;
}
+ if(s->lossless && s->avctx->lowres){
+ av_log(s->avctx, AV_LOG_ERROR, "lowres is not possible with lossless jpeg\n");
+ return -1;
+ }
+
height = get_bits(&s->gb, 16);
width = get_bits(&s->gb, 16);
return -1;
}
- if (s->v_max == 1 && s->h_max == 1 && s->lossless == 1)
+ if (s->v_max == 1 && s->h_max == 1 && s->lossless==1 && nb_components==3)
s->rgb = 1;
/* if different size, realloc/alloc picture */
switch (pix_fmt_id) {
case 0x11111100:
if (s->rgb)
- s->avctx->pix_fmt = PIX_FMT_BGRA;
- else
+ s->avctx->pix_fmt = PIX_FMT_BGR24;
+ else {
+ if (s->component_id[0] == 'Q' && s->component_id[1] == 'F' && s->component_id[2] == 'A') {
+ s->avctx->pix_fmt = PIX_FMT_GBR24P;
+ } else {
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV444P : PIX_FMT_YUVJ444P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ }
+ }
assert(s->nb_components == 3);
break;
+ case 0x12121100:
+ case 0x22122100:
+ s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV444P : PIX_FMT_YUVJ444P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ s->upscale_v = 2;
+ s->upscale_h = (pix_fmt_id == 0x22122100);
+ s->chroma_height = s->height;
+ break;
+ case 0x21211100:
+ case 0x22211200:
+ s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV444P : PIX_FMT_YUVJ444P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ s->upscale_v = (pix_fmt_id == 0x22211200);
+ s->upscale_h = 2;
+ s->chroma_height = s->height;
+ break;
+ case 0x22221100:
+ s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV444P : PIX_FMT_YUVJ444P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ s->upscale_v = 2;
+ s->upscale_h = 2;
+ s->chroma_height = s->height / 2;
+ break;
case 0x11000000:
- s->avctx->pix_fmt = PIX_FMT_GRAY8;
+ if(s->bits <= 8)
+ s->avctx->pix_fmt = PIX_FMT_GRAY8;
+ else
+ s->avctx->pix_fmt = PIX_FMT_GRAY16;
break;
case 0x12111100:
+ case 0x22211100:
+ case 0x22112100:
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV440P : PIX_FMT_YUVJ440P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ s->upscale_h = (pix_fmt_id == 0x22211100) * 2 + (pix_fmt_id == 0x22112100);
+ s->chroma_height = s->height / 2;
break;
case 0x21111100:
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV422P : PIX_FMT_YUVJ422P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ break;
+ case 0x22121100:
+ case 0x22111200:
+ s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV422P : PIX_FMT_YUVJ422P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
+ s->upscale_v = (pix_fmt_id == 0x22121100) + 1;
break;
case 0x22111100:
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV420P : PIX_FMT_YUVJ420P;
+ s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
break;
default:
av_log(s->avctx, AV_LOG_ERROR, "Unhandled pixel format 0x%x\n", pix_fmt_id);
return -1;
}
if (s->ls) {
+ s->upscale_h = s->upscale_v = 0;
if (s->nb_components > 1)
s->avctx->pix_fmt = PIX_FMT_RGB24;
else if (s->bits <= 8)
#undef REFINE_BIT
#undef ZERO_RUN
-static int ljpeg_decode_rgb_scan(MJpegDecodeContext *s, int predictor,
- int point_transform)
+static int ljpeg_decode_rgb_scan(MJpegDecodeContext *s, int nb_components, int predictor, int point_transform)
{
int i, mb_x, mb_y;
uint16_t (*buffer)[4];
int left[3], top[3], topleft[3];
const int linesize = s->linesize[0];
const int mask = (1 << s->bits) - 1;
+ int resync_mb_y = 0;
+ int resync_mb_x = 0;
+
+ s->restart_count = s->restart_interval;
av_fast_malloc(&s->ljpeg_buffer, &s->ljpeg_buffer_size,
(unsigned)s->mb_width * 4 * sizeof(s->ljpeg_buffer[0][0]));
buffer = s->ljpeg_buffer;
for (i = 0; i < 3; i++)
- buffer[0][i] = 1 << (s->bits + point_transform - 1);
+ buffer[0][i] = 1 << (s->bits - 1);
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
- const int modified_predictor = mb_y ? predictor : 1;
- uint8_t *ptr = s->picture_ptr->data[0] + (linesize * mb_y);
+ uint8_t *ptr = s->picture.data[0] + (linesize * mb_y);
if (s->interlaced && s->bottom_field)
ptr += linesize >> 1;
top[i] = left[i] = topleft[i] = buffer[0][i];
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
- if (s->restart_interval && !s->restart_count)
+ int modified_predictor = predictor;
+
+ if (s->restart_interval && !s->restart_count){
s->restart_count = s->restart_interval;
+ resync_mb_x = mb_x;
+ resync_mb_y = mb_y;
+ for(i=0; i<3; i++)
+ top[i] = left[i]= topleft[i]= 1 << (s->bits - 1);
+ }
+ if (mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x || !mb_x)
+ modified_predictor = 1;
- for (i = 0; i < 3; i++) {
- int pred;
+ for (i=0;i<nb_components;i++) {
+ int pred, dc;
topleft[i] = top[i];
top[i] = buffer[mb_x][i];
PREDICT(pred, topleft[i], top[i], left[i], modified_predictor);
+ dc = mjpeg_decode_dc(s, s->dc_index[i]);
+ if(dc == 0xFFFF)
+ return -1;
+
left[i] = buffer[mb_x][i] =
- mask & (pred + (mjpeg_decode_dc(s, s->dc_index[i]) << point_transform));
+ mask & (pred + (dc << point_transform));
}
if (s->restart_interval && !--s->restart_count) {
if (s->rct) {
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
- ptr[4 * mb_x + 1] = buffer[mb_x][0] - ((buffer[mb_x][1] + buffer[mb_x][2] - 0x200) >> 2);
- ptr[4 * mb_x + 0] = buffer[mb_x][1] + ptr[4 * mb_x + 1];
- ptr[4 * mb_x + 2] = buffer[mb_x][2] + ptr[4 * mb_x + 1];
+ ptr[3*mb_x + 1] = buffer[mb_x][0] - ((buffer[mb_x][1] + buffer[mb_x][2] - 0x200) >> 2);
+ ptr[3*mb_x + 0] = buffer[mb_x][1] + ptr[3*mb_x + 1];
+ ptr[3*mb_x + 2] = buffer[mb_x][2] + ptr[3*mb_x + 1];
}
} else if (s->pegasus_rct) {
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
- ptr[4 * mb_x + 1] = buffer[mb_x][0] - ((buffer[mb_x][1] + buffer[mb_x][2]) >> 2);
- ptr[4 * mb_x + 0] = buffer[mb_x][1] + ptr[4 * mb_x + 1];
- ptr[4 * mb_x + 2] = buffer[mb_x][2] + ptr[4 * mb_x + 1];
+ ptr[3*mb_x + 1] = buffer[mb_x][0] - ((buffer[mb_x][1] + buffer[mb_x][2]) >> 2);
+ ptr[3*mb_x + 0] = buffer[mb_x][1] + ptr[3*mb_x + 1];
+ ptr[3*mb_x + 2] = buffer[mb_x][2] + ptr[3*mb_x + 1];
}
} else {
- for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
- ptr[4 * mb_x + 0] = buffer[mb_x][2];
- ptr[4 * mb_x + 1] = buffer[mb_x][1];
- ptr[4 * mb_x + 2] = buffer[mb_x][0];
+ for(i=0; i<nb_components; i++) {
+ int c= s->comp_index[i];
+ for(mb_x = 0; mb_x < s->mb_width; mb_x++) {
+ ptr[3*mb_x+2-c] = buffer[mb_x][i];
+ }
}
}
}
int point_transform)
{
int i, mb_x, mb_y;
- const int nb_components = 3;
+ const int nb_components=s->nb_components;
+ int bits= (s->bits+7)&~7;
+ int resync_mb_y = 0;
+ int resync_mb_x = 0;
+
+ point_transform += bits - s->bits;
+
+ av_assert0(nb_components==1 || nb_components==3);
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
- if (s->restart_interval && !s->restart_count)
+ if (s->restart_interval && !s->restart_count){
s->restart_count = s->restart_interval;
+ resync_mb_x = mb_x;
+ resync_mb_y = mb_y;
+ }
- if (mb_x == 0 || mb_y == 0 || s->interlaced) {
+ if(!mb_x || mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x || s->interlaced){
+ int toprow = mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x;
+ int leftcol = !mb_x || mb_y == resync_mb_y && mb_x == resync_mb_x;
for (i = 0; i < nb_components; i++) {
uint8_t *ptr;
+ uint16_t *ptr16;
int n, h, v, x, y, c, j, linesize;
- n = s->nb_blocks[i];
- c = s->comp_index[i];
- h = s->h_scount[i];
- v = s->v_scount[i];
- x = 0;
- y = 0;
- linesize = s->linesize[c];
+ n = s->nb_blocks[i];
+ c = s->comp_index[i];
+ h = s->h_scount[i];
+ v = s->v_scount[i];
+ x = 0;
+ y = 0;
+ linesize= s->linesize[c];
- for (j = 0; j < n; j++) {
- int pred;
- // FIXME optimize this crap
- ptr = s->picture_ptr->data[c] +
- (linesize * (v * mb_y + y)) +
- (h * mb_x + x);
- if (y == 0 && mb_y == 0) {
- if (x == 0 && mb_x == 0)
- pred = 128 << point_transform;
- else
- pred = ptr[-1];
- } else {
- if (x == 0 && mb_x == 0)
- pred = ptr[-linesize];
- else
- PREDICT(pred, ptr[-linesize - 1],
- ptr[-linesize], ptr[-1], predictor);
- }
+ if(bits>8) linesize /= 2;
+
+ for(j=0; j<n; j++) {
+ int pred, dc;
+
+ dc = mjpeg_decode_dc(s, s->dc_index[i]);
+ if(dc == 0xFFFF)
+ return -1;
+ if(bits<=8){
+ ptr = s->picture.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];
+ }else{
+ PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);
+ }
+ }
if (s->interlaced && s->bottom_field)
ptr += linesize >> 1;
- *ptr = pred + (mjpeg_decode_dc(s, s->dc_index[i]) << point_transform);
+ pred &= (-1)<<(8-s->bits);
+ *ptr= pred + (dc << point_transform);
+ }else{
+ ptr16 = s->picture.data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x); //FIXME optimize this crap
+ if(y==0 && toprow){
+ if(x==0 && leftcol){
+ pred= 1 << (bits - 1);
+ }else{
+ pred= ptr16[-1];
+ }
+ }else{
+ if(x==0 && leftcol){
+ pred= ptr16[-linesize];
+ }else{
+ PREDICT(pred, ptr16[-linesize-1], ptr16[-linesize], ptr16[-1], predictor);
+ }
+ }
+ if (s->interlaced && s->bottom_field)
+ ptr16 += linesize >> 1;
+ pred &= (-1)<<(16-s->bits);
+ *ptr16= pred + (dc << point_transform);
+ }
if (++x == h) {
x = 0;
y++;
} else {
for (i = 0; i < nb_components; i++) {
uint8_t *ptr;
- int n, h, v, x, y, c, j, linesize;
+ uint16_t *ptr16;
+ int n, h, v, x, y, c, j, linesize, dc;
n = s->nb_blocks[i];
c = s->comp_index[i];
h = s->h_scount[i];
y = 0;
linesize = s->linesize[c];
+ if(bits>8) linesize /= 2;
+
for (j = 0; j < n; j++) {
int pred;
- // FIXME optimize this crap
- ptr = s->picture_ptr->data[c] +
+ dc = mjpeg_decode_dc(s, s->dc_index[i]);
+ if(dc == 0xFFFF)
+ return -1;
+ if(bits<=8){
+ ptr = s->picture.data[c] +
(linesize * (v * mb_y + y)) +
- (h * mb_x + x);
- PREDICT(pred, ptr[-linesize - 1],
- ptr[-linesize], ptr[-1], predictor);
- *ptr = pred + (mjpeg_decode_dc(s, s->dc_index[i]) << point_transform);
+ (h * mb_x + x); //FIXME optimize this crap
+ PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);
+
+ pred &= (-1)<<(8-s->bits);
+ *ptr = pred + (dc << point_transform);
+ }else{
+ ptr16 = s->picture.data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x); //FIXME optimize this crap
+ PREDICT(pred, ptr16[-linesize-1], ptr16[-linesize], ptr16[-1], predictor);
+
+ pred &= (-1)<<(16-s->bits);
+ *ptr16= pred + (dc << point_transform);
+ }
+
if (++x == h) {
x = 0;
y++;
if (s->restart_interval) {
s->restart_count--;
+ if(s->restart_count == 0 && s->avctx->codec_id == CODEC_ID_THP){
+ align_get_bits(&s->gb);
+ for (i = 0; i < nb_components; i++) /* reset dc */
+ s->last_dc[i] = 1024;
+ }
+
i = 8 + ((-get_bits_count(&s->gb)) & 7);
/* skip RSTn */
if (show_bits(&s->gb, i) == (1 << i) - 1) {
align_get_bits(&s->gb);
while (get_bits_left(&s->gb) >= 8 && show_bits(&s->gb, 8) == 0xFF)
skip_bits(&s->gb, 8);
- if ((get_bits(&s->gb, 8) & 0xF8) == 0xD0) {
+ if (get_bits_left(&s->gb) >= 8 && (get_bits(&s->gb, 8) & 0xF8) == 0xD0) {
for (i = 0; i < nb_components; i++) /* reset dc */
s->last_dc[i] = 1024;
} else
}
static int mjpeg_decode_scan_progressive_ac(MJpegDecodeContext *s, int ss,
- int se, int Ah, int Al,
- const uint8_t *mb_bitmask,
- const AVFrame *reference)
+ int se, int Ah, int Al)
{
int mb_x, mb_y;
int EOBRUN = 0;
int c = s->comp_index[0];
- uint8_t *data = s->picture_ptr->data[c];
- const uint8_t *reference_data = reference ? reference->data[c] : NULL;
+ uint8_t *data = s->picture.data[c];
int linesize = s->linesize[c];
int last_scan = 0;
int16_t *quant_matrix = s->quant_matrixes[s->quant_index[c]];
- GetBitContext mb_bitmask_gb;
-
- if (mb_bitmask)
- init_get_bits(&mb_bitmask_gb, mb_bitmask, s->mb_width * s->mb_height);
if (!Al) {
s->coefs_finished[c] |= (1LL << (se + 1)) - (1LL << ss);
last_scan = !~s->coefs_finished[c];
}
- if (s->interlaced && s->bottom_field) {
- int offset = linesize >> 1;
- data += offset;
- reference_data += offset;
- }
+ if (s->interlaced && s->bottom_field)
+ data += linesize >> 1;
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
- int block_offset = (mb_y * linesize * 8 >> s->avctx->lowres);
- uint8_t *ptr = data + block_offset;
+ uint8_t *ptr = data + (mb_y * linesize * 8 >> s->avctx->lowres);
int block_idx = mb_y * s->block_stride[c];
DCTELEM (*block)[64] = &s->blocks[c][block_idx];
uint8_t *last_nnz = &s->last_nnz[c][block_idx];
for (mb_x = 0; mb_x < s->mb_width; mb_x++, block++, last_nnz++) {
- const int copy_mb = mb_bitmask && !get_bits1(&mb_bitmask_gb);
-
- if (!copy_mb) {
int ret;
if (Ah)
ret = decode_block_refinement(s, *block, last_nnz, s->ac_index[0],
"error y=%d x=%d\n", mb_y, mb_x);
return -1;
}
- }
if (last_scan) {
- if (copy_mb) {
- mjpeg_copy_block(ptr, reference_data + block_offset,
- linesize, s->avctx->lowres);
- } else {
s->dsp.idct_put(ptr, linesize, *block);
ptr += 8 >> s->avctx->lowres;
- }
}
}
}
&& nb_components == 3 && s->nb_components == 3 && i)
index = 3 - i;
+ if(nb_components == 3 && s->nb_components == 3 && s->avctx->pix_fmt == PIX_FMT_GBR24P)
+ index = (i+2)%3;
+
s->comp_index[i] = index;
s->nb_blocks[i] = s->h_count[index] * s->v_count[index];
if (s->dc_index[i] < 0 || s->ac_index[i] < 0 ||
s->dc_index[i] >= 4 || s->ac_index[i] >= 4)
goto out_of_range;
- if (!s->vlcs[0][s->dc_index[i]].table ||
- !s->vlcs[1][s->ac_index[i]].table)
+ if (!s->vlcs[0][s->dc_index[i]].table || !(s->progressive ? s->vlcs[2][s->ac_index[0]].table : s->vlcs[1][s->ac_index[i]].table))
goto out_of_range;
}
predictor = get_bits(&s->gb, 8); /* JPEG Ss / lossless JPEG predictor /JPEG-LS NEAR */
ilv = get_bits(&s->gb, 8); /* JPEG Se / JPEG-LS ILV */
- prev_shift = get_bits(&s->gb, 4); /* Ah */
- point_transform = get_bits(&s->gb, 4); /* Al */
+ if(s->avctx->codec_tag != AV_RL32("CJPG")){
+ prev_shift = get_bits(&s->gb, 4); /* Ah */
+ point_transform = get_bits(&s->gb, 4); /* Al */
+ }else
+ prev_shift = point_transform = 0;
for (i = 0; i < nb_components; i++)
s->last_dc[i] = 1024;
}
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
- av_log(s->avctx, AV_LOG_DEBUG, "%s %s p:%d >>:%d ilv:%d bits:%d %s\n",
+ av_log(s->avctx, AV_LOG_DEBUG, "%s %s p:%d >>:%d ilv:%d bits:%d skip:%d %s comp:%d\n",
s->lossless ? "lossless" : "sequential DCT", s->rgb ? "RGB" : "",
- predictor, point_transform, ilv, s->bits,
- s->pegasus_rct ? "PRCT" : (s->rct ? "RCT" : ""));
+ predictor, point_transform, ilv, s->bits, s->mjpb_skiptosod,
+ s->pegasus_rct ? "PRCT" : (s->rct ? "RCT" : ""), nb_components);
/* mjpeg-b can have padding bytes between sos and image data, skip them */
skip_bits(&s->gb, 8);
if (s->lossless) {
+ av_assert0(s->picture_ptr == &s->picture);
if (CONFIG_JPEGLS_DECODER && s->ls) {
// for () {
// reset_ls_coding_parameters(s, 0);
return -1;
} else {
if (s->rgb) {
- if (ljpeg_decode_rgb_scan(s, predictor, point_transform) < 0)
+ if (ljpeg_decode_rgb_scan(s, nb_components, predictor, point_transform) < 0)
return -1;
} else {
if (ljpeg_decode_yuv_scan(s, predictor, point_transform) < 0)
}
} else {
if (s->progressive && predictor) {
+ av_assert0(s->picture_ptr == &s->picture);
if (mjpeg_decode_scan_progressive_ac(s, predictor, ilv, prev_shift,
- point_transform,
- mb_bitmask, reference) < 0)
+ point_transform) < 0)
return -1;
} else {
if (mjpeg_decode_scan(s, nb_components, prev_shift, point_transform,
4bytes field_size
4bytes field_size_less_padding
*/
- s->buggy_avid = 1;
-// if (s->first_picture)
-// printf("mjpeg: workarounding buggy AVID\n");
- i = get_bits(&s->gb, 8);
- if (i == 2)
- s->bottom_field = 1;
- else if (i == 1)
- s->bottom_field = 0;
+ s->buggy_avid = 1;
+// if (s->first_picture)
+// printf("mjpeg: workarounding buggy AVID\n");
+ i = get_bits(&s->gb, 8); len--;
+ av_log(s->avctx, AV_LOG_DEBUG, "polarity %d\n", i);
#if 0
skip_bits(&s->gb, 8);
skip_bits(&s->gb, 32);
const uint8_t *buf_ptr;
unsigned int v, v2;
int val;
-#ifdef DEBUG
int skipped = 0;
-#endif
buf_ptr = *pbuf_ptr;
while (buf_ptr < buf_end) {
val = *buf_ptr++;
goto found;
}
-#ifdef DEBUG
skipped++;
-#endif
}
val = -1;
found:
int start_code;
start_code = find_marker(buf_ptr, buf_end);
- if ((buf_end - *buf_ptr) > s->buffer_size) {
- av_free(s->buffer);
- s->buffer_size = buf_end - *buf_ptr;
- s->buffer = av_malloc(s->buffer_size + FF_INPUT_BUFFER_PADDING_SIZE);
- av_log(s->avctx, AV_LOG_DEBUG,
- "buffer too small, expanding to %d bytes\n", s->buffer_size);
- }
+ av_fast_padded_malloc(&s->buffer, &s->buffer_size, buf_end - *buf_ptr);
+ if (!s->buffer)
+ return AVERROR(ENOMEM);
/* unescape buffer of SOS, use special treatment for JPEG-LS */
if (start_code == SOS && !s->ls) {
const uint8_t *unescaped_buf_ptr;
int unescaped_buf_size;
int start_code;
+ int i, index;
AVFrame *picture = data;
s->got_picture = 0; // picture from previous image can not be reused
return -1;
break;
case EOI:
- s->cur_scan = 0;
- if ((s->buggy_avid && !s->interlaced) || s->restart_interval)
- break;
eoi_parser:
+ s->cur_scan = 0;
if (!s->got_picture) {
av_log(avctx, AV_LOG_WARNING,
"Found EOI before any SOF, ignoring\n");
break;
- }
+ }
if (s->interlaced) {
s->bottom_field ^= 1;
/* if not bottom field, do not output image yet */
if (s->bottom_field == !s->interlace_polarity)
- goto not_the_end;
- }
+ break;
+ }
*picture = *s->picture_ptr;
*data_size = sizeof(AVFrame);
if (ff_mjpeg_decode_sos(s, NULL, NULL) < 0 &&
(avctx->err_recognition & AV_EF_EXPLODE))
return AVERROR_INVALIDDATA;
- /* buggy avid puts EOI every 10-20th frame */
- /* if restart period is over process EOI */
- if ((s->buggy_avid && !s->interlaced) || s->restart_interval)
- goto eoi_parser;
break;
case DRI:
mjpeg_decode_dri(s);
// break;
}
-not_the_end:
/* eof process start code */
buf_ptr += (get_bits_count(&s->gb) + 7) / 8;
av_log(avctx, AV_LOG_DEBUG,
av_log(avctx, AV_LOG_FATAL, "No JPEG data found in image\n");
return -1;
the_end:
+ if (s->upscale_h) {
+ uint8_t *line = s->picture_ptr->data[s->upscale_h];
+ av_assert0(avctx->pix_fmt == PIX_FMT_YUVJ444P ||
+ avctx->pix_fmt == PIX_FMT_YUV444P ||
+ avctx->pix_fmt == PIX_FMT_YUVJ440P ||
+ avctx->pix_fmt == PIX_FMT_YUV440P);
+ for (i = 0; i < s->chroma_height; i++) {
+ for (index = s->width - 1; index; index--)
+ line[index] = (line[index / 2] + line[(index + 1) / 2]) >> 1;
+ line += s->linesize[s->upscale_h];
+ }
+ }
+ if (s->upscale_v) {
+ uint8_t *dst = &((uint8_t *)s->picture_ptr->data[s->upscale_v])[(s->height - 1) * s->linesize[s->upscale_v]];
+ av_assert0(avctx->pix_fmt == PIX_FMT_YUVJ444P ||
+ avctx->pix_fmt == PIX_FMT_YUV444P ||
+ avctx->pix_fmt == PIX_FMT_YUVJ422P ||
+ avctx->pix_fmt == PIX_FMT_YUV422P);
+ for (i = s->height - 1; i; i--) {
+ uint8_t *src1 = &((uint8_t *)s->picture_ptr->data[s->upscale_v])[i / 2 * s->linesize[s->upscale_v]];
+ uint8_t *src2 = &((uint8_t *)s->picture_ptr->data[s->upscale_v])[(i + 1) / 2 * s->linesize[s->upscale_v]];
+ if (src1 == src2) {
+ memcpy(dst, src1, s->width);
+ } else {
+ for (index = 0; index < s->width; index++)
+ dst[index] = (src1[index] + src2[index]) >> 1;
+ }
+ dst -= s->linesize[s->upscale_v];
+ }
+ }
av_log(avctx, AV_LOG_DEBUG, "mjpeg decode frame unused %td bytes\n",
buf_end - buf_ptr);
// return buf_end - buf_ptr;
projects / ffmpeg / blobdiff