* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <inttypes.h>
+
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
return 0;
}
-static int decode_unk6(GetByteContext *gb, uint8_t *frame, int width, int height)
+static int decode_tdlt(GetByteContext *gb, uint8_t *frame, int width, int height)
{
- return AVERROR_PATCHWELCOME;
+ const uint8_t *frame_end = frame + width * height;
+ int segments = bytestream2_get_le32(gb);
+ int skip, copy;
+
+ while (segments--) {
+ if (bytestream2_get_bytes_left(gb) < 2)
+ return AVERROR_INVALIDDATA;
+ copy = bytestream2_get_byteu(gb) * 2;
+ skip = bytestream2_get_byteu(gb) * 2;
+ if (frame_end - frame < copy + skip ||
+ bytestream2_get_bytes_left(gb) < copy)
+ return AVERROR_INVALIDDATA;
+ frame += skip;
+ bytestream2_get_buffer(gb, frame, copy);
+ frame += copy;
+ }
+
+ return 0;
}
static int decode_blck(GetByteContext *gb, uint8_t *frame, int width, int height)
static const chunk_decoder decoder[8] = {
decode_copy, decode_tsw1, decode_bdlt, decode_wdlt,
- decode_unk6, decode_dsw1, decode_blck, decode_dds1,
+ decode_tdlt, decode_dsw1, decode_blck, decode_dds1,
};
static const char* chunk_name[8] = {
- "COPY", "TSW1", "BDLT", "WDLT", "????", "DSW1", "BLCK", "DDS1"
+ "COPY", "TSW1", "BDLT", "WDLT", "TDLT", "DSW1", "BLCK", "DDS1"
};
static int dfa_decode_frame(AVCodecContext *avctx,
return AVERROR_INVALIDDATA;
}
} else {
- av_log(avctx, AV_LOG_WARNING, "Ignoring unknown chunk type %d\n",
+ av_log(avctx, AV_LOG_WARNING,
+ "Ignoring unknown chunk type %"PRIu32"\n",
chunk_type);
}
buf += chunk_size;
AVCodec ff_dfa_decoder = {
.name = "dfa",
+ .long_name = NULL_IF_CONFIG_SMALL("Chronomaster DFA"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_DFA,
.priv_data_size = sizeof(DfaContext),
.close = dfa_decode_end,
.decode = dfa_decode_frame,
.capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Chronomaster DFA"),
};