if (is_ac)
huff_sym[0] = 16 * 256;
- return init_vlc_sparse(vlc, 9, nb_codes, huff_size, 1, 1,
- huff_code, 2, 2, huff_sym, 2, 2, use_static);
+ return ff_init_vlc_sparse(vlc, 9, nb_codes, huff_size, 1, 1,
+ huff_code, 2, 2, huff_sym, 2, 2, use_static);
}
static void build_basic_mjpeg_vlc(MJpegDecodeContext *s)
avcodec_get_frame_defaults(&s->picture);
s->avctx = avctx;
- dsputil_init(&s->dsp, avctx);
+ ff_dsputil_init(&s->dsp, avctx);
ff_init_scantable(s->dsp.idct_permutation, &s->scantable, ff_zigzag_direct);
s->buffer_size = 0;
s->buffer = NULL;
build_basic_mjpeg_vlc(s);
-#if FF_API_MJPEG_GLOBAL_OPTS
- if (avctx->flags & CODEC_FLAG_EXTERN_HUFF)
- s->extern_huff = 1;
-#endif
if (s->extern_huff) {
av_log(avctx, AV_LOG_INFO, "mjpeg: using external huffman table\n");
init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size * 8);
len -= n;
/* build VLC and flush previous vlc if present */
- free_vlc(&s->vlcs[class][index]);
+ ff_free_vlc(&s->vlcs[class][index]);
av_log(s->avctx, AV_LOG_DEBUG, "class=%d index=%d nb_codes=%d\n",
class, index, code_max + 1);
if (build_vlc(&s->vlcs[class][index], bits_table, val_table,
return -1;
if (class > 0) {
- free_vlc(&s->vlcs[2][index]);
+ ff_free_vlc(&s->vlcs[2][index]);
if (build_vlc(&s->vlcs[2][index], bits_table, val_table,
code_max + 1, 0, 0) < 0)
return -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;
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) {
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) {
for (i = 0; i < 3; i++) {
for (j = 0; j < 4; j++)
- free_vlc(&s->vlcs[i][j]);
+ ff_free_vlc(&s->vlcs[i][j]);
}
for (i = 0; i < MAX_COMPONENTS; i++) {
av_freep(&s->blocks[i]);