*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
-
+
/**
* @file cljr.c
* Cirrus Logic AccuPak codec.
*/
-
+
#include "avcodec.h"
#include "mpegvideo.h"
GetBitContext gb;
} CLJRContext;
-static int decode_frame(AVCodecContext *avctx,
+static int decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
CLJRContext * const a = avctx->priv_data;
AVFrame *picture = data;
AVFrame * const p= (AVFrame*)&a->picture;
- uint8_t *bytestream= buf;
- int i, x, y;
-
- *data_size = 0;
-
- /* special case for last picture */
- if (buf_size == 0) {
- return 0;
- }
+ int x, y;
if(p->data[0])
avctx->release_buffer(avctx, p);
p->reference= 0;
if(avctx->get_buffer(avctx, p) < 0){
- fprintf(stderr, "get_buffer() failed\n");
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
p->pict_type= I_TYPE;
init_get_bits(&a->gb, buf, buf_size);
for(y=0; y<avctx->height; y++){
- int offset;
uint8_t *luma= &a->picture.data[0][ y*a->picture.linesize[0] ];
- uint8_t *cb= &a->picture.data[1][ (y>>2)*a->picture.linesize[1] ];
- uint8_t *cr= &a->picture.data[2][ (y>>2)*a->picture.linesize[2] ];
-
+ uint8_t *cb= &a->picture.data[1][ y*a->picture.linesize[1] ];
+ uint8_t *cr= &a->picture.data[2][ y*a->picture.linesize[2] ];
for(x=0; x<avctx->width; x+=4){
- luma[3] = get_bits(&a->gb, 5) << 3;
- luma[2] = get_bits(&a->gb, 5) << 3;
- luma[1] = get_bits(&a->gb, 5) << 3;
- luma[0] = get_bits(&a->gb, 5) << 3;
- luma+= 4;
- *(cb++) = get_bits(&a->gb, 6) << 2;
- *(cr++) = get_bits(&a->gb, 6) << 2;
+ luma[3] = get_bits(&a->gb, 5) << 3;
+ luma[2] = get_bits(&a->gb, 5) << 3;
+ luma[1] = get_bits(&a->gb, 5) << 3;
+ luma[0] = get_bits(&a->gb, 5) << 3;
+ luma+= 4;
+ *(cb++) = get_bits(&a->gb, 6) << 2;
+ *(cr++) = get_bits(&a->gb, 6) << 2;
}
}
*data_size = sizeof(AVPicture);
emms_c();
-
+
return buf_size;
}
p->key_frame= 1;
emms_c();
-
+
align_put_bits(&a->pb);
while(get_bit_count(&a->pb)&31)
put_bits(&a->pb, 8, 0);
-
+
size= get_bit_count(&a->pb)/32;
-
+
return size*4;
}
#endif
}
static int decode_init(AVCodecContext *avctx){
- CLJRContext * const a = avctx->priv_data;
- AVFrame *p= (AVFrame*)&a->picture;
- int i;
-
+
common_init(avctx);
-
- avctx->pix_fmt= PIX_FMT_YUV410P;
- return 0;
-}
+ avctx->pix_fmt= PIX_FMT_YUV411P;
-static int encode_init(AVCodecContext *avctx){
- CLJRContext * const a = avctx->priv_data;
- int i;
-
- common_init(avctx);
-
return 0;
}
-static int decode_end(AVCodecContext *avctx){
- CLJRContext * const a = avctx->priv_data;
+#if 0
+static int encode_init(AVCodecContext *avctx){
- avcodec_default_free_buffers(avctx);
+ common_init(avctx);
return 0;
}
+#endif
AVCodec cljr_decoder = {
"cljr",
sizeof(CLJRContext),
decode_init,
NULL,
- decode_end,
+ NULL,
decode_frame,
CODEC_CAP_DR1,
};