Put the zero length check in place of code that was never used
during decoding, as zero-length slices were generally refused
in decode_frame().
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
slice_size = slice_data_end - slice_data_start;
if (!slice_size) {
slice_size = slice_data_end - slice_data_start;
if (!slice_size) {
- for (j = sstart; j < send; j++) {
- for (i = 0; i < width * step; i += step)
- dest[i] = 0x80;
- dest += stride;
- }
- continue;
+ av_log(c->avctx, AV_LOG_ERROR, "Plane has more than one symbol "
+ "yet a slice has a length of zero.\n");
+ goto fail;
}
memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
}
memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
for (j = 0; j < c->slices; j++) {
slice_end = bytestream2_get_le32u(&gb);
slice_size = slice_end - slice_start;
for (j = 0; j < c->slices; j++) {
slice_end = bytestream2_get_le32u(&gb);
slice_size = slice_end - slice_start;
- if (slice_end <= 0 || slice_size <= 0 ||
+ if (slice_end < 0 || slice_size < 0 ||
bytestream2_get_bytes_left(&gb) < slice_end) {
av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n");
return AVERROR_INVALIDDATA;
bytestream2_get_bytes_left(&gb) < slice_end) {
av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n");
return AVERROR_INVALIDDATA;