* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
/**
- * @file qdrw.c
+ * @file
* Apple QuickDraw codec.
*/
+#include "libavutil/intreadwrite.h"
#include "avcodec.h"
-#include "mpegvideo.h"
typedef struct QdrawContext{
AVCodecContext *avctx;
AVFrame pic;
- uint8_t palette[256*3];
} QdrawContext;
static int decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
- uint8_t *buf, int buf_size)
+ AVPacket *avpkt)
{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
QdrawContext * const a = avctx->priv_data;
AVFrame * const p= (AVFrame*)&a->pic;
uint8_t* outdata;
int colors;
int i;
+ uint32_t *pal;
+ int r, g, b;
if(p->data[0])
avctx->release_buffer(avctx, p);
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
- p->pict_type= I_TYPE;
+ p->pict_type= FF_I_TYPE;
p->key_frame= 1;
outdata = a->pic.data[0];
return -1;
}
+ pal = (uint32_t*)p->data[1];
for (i = 0; i <= colors; i++) {
unsigned int idx;
idx = AV_RB16(buf); /* color index */
buf += 6;
continue;
}
- a->palette[idx * 3 + 0] = *buf++;
+ r = *buf++;
buf++;
- a->palette[idx * 3 + 1] = *buf++;
+ g = *buf++;
buf++;
- a->palette[idx * 3 + 2] = *buf++;
+ b = *buf++;
buf++;
+ pal[idx] = (r << 16) | (g << 8) | b;
}
+ p->palette_has_changed = 1;
buf += 18; /* skip unneeded data */
for (i = 0; i < avctx->height; i++) {
int size, left, code, pix;
- uint8_t *next;
+ const uint8_t *next;
uint8_t *out;
int tsize = 0;
while (left > 0) {
code = *buf++;
if (code & 0x80 ) { /* run */
- int i;
pix = *buf++;
- if ((out + (257 - code) * 3) > (outdata + a->pic.linesize[0]))
+ if ((out + (257 - code)) > (outdata + a->pic.linesize[0]))
break;
- for (i = 0; i < 257 - code; i++) {
- *out++ = a->palette[pix * 3 + 0];
- *out++ = a->palette[pix * 3 + 1];
- *out++ = a->palette[pix * 3 + 2];
- }
+ memset(out, pix, 257 - code);
+ out += 257 - code;
tsize += 257 - code;
left -= 2;
} else { /* copy */
- int i, pix;
- if ((out + code * 3) > (outdata + a->pic.linesize[0]))
+ if ((out + code) > (outdata + a->pic.linesize[0]))
break;
- for (i = 0; i <= code; i++) {
- pix = *buf++;
- *out++ = a->palette[pix * 3 + 0];
- *out++ = a->palette[pix * 3 + 1];
- *out++ = a->palette[pix * 3 + 2];
- }
+ memcpy(out, buf, code + 1);
+ out += code + 1;
+ buf += code + 1;
left -= 2 + code;
tsize += code + 1;
}
return buf_size;
}
-static int decode_init(AVCodecContext *avctx){
+static av_cold int decode_init(AVCodecContext *avctx){
// QdrawContext * const a = avctx->priv_data;
- if (avcodec_check_dimensions(avctx, avctx->width, avctx->height) < 0) {
- return 1;
- }
+ avctx->pix_fmt= PIX_FMT_PAL8;
+
+ return 0;
+}
+
+static av_cold int decode_end(AVCodecContext *avctx){
+ QdrawContext * const a = avctx->priv_data;
+ AVFrame *pic = &a->pic;
- avctx->pix_fmt= PIX_FMT_RGB24;
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
return 0;
}
AVCodec qdraw_decoder = {
"qdraw",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_QDRAW,
sizeof(QdrawContext),
decode_init,
NULL,
- NULL,
+ decode_end,
decode_frame,
CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Apple QuickDraw"),
};