* 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 qpeg.c
+ * @file
* QPEG codec.
*/
#include "avcodec.h"
-#include "mpegvideo.h"
typedef struct QpegContext{
AVCodecContext *avctx;
uint8_t *refdata;
} QpegContext;
-static void qpeg_decode_intra(uint8_t *src, uint8_t *dst, int size,
+static void qpeg_decode_intra(const uint8_t *src, uint8_t *dst, int size,
int stride, int width, int height)
{
int i;
}
}
-static int qpeg_table_h[16] =
+static const int qpeg_table_h[16] =
{ 0x00, 0x20, 0x20, 0x20, 0x18, 0x10, 0x10, 0x20, 0x10, 0x08, 0x18, 0x08, 0x08, 0x18, 0x10, 0x04};
-static int qpeg_table_w[16] =
+static const int qpeg_table_w[16] =
{ 0x00, 0x20, 0x18, 0x08, 0x18, 0x10, 0x20, 0x10, 0x08, 0x10, 0x20, 0x20, 0x08, 0x10, 0x18, 0x04};
/* Decodes delta frames */
-static void qpeg_decode_inter(uint8_t *src, uint8_t *dst, int size,
+static void qpeg_decode_inter(const uint8_t *src, uint8_t *dst, int size,
int stride, int width, int height,
- int delta, uint8_t *ctable, uint8_t *refdata)
+ int delta, const uint8_t *ctable, uint8_t *refdata)
{
int i, j;
int code;
int filled = 0;
int orig_height;
- uint8_t *blkdata;
/* copy prev frame */
for(i = 0; i < height; i++)
memcpy(refdata + (i * width), dst + (i * stride), width);
orig_height = height;
- blkdata = src - 0x86;
height--;
dst = dst + height * stride;
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;
QpegContext * const a = avctx->priv_data;
AVFrame * const p= (AVFrame*)&a->pic;
uint8_t* outdata;
return buf_size;
}
-static int decode_init(AVCodecContext *avctx){
+static av_cold int decode_init(AVCodecContext *avctx){
QpegContext * const a = avctx->priv_data;
+ if (!avctx->palctrl) {
+ av_log(avctx, AV_LOG_FATAL, "Missing required palette via palctrl\n");
+ return -1;
+ }
a->avctx = avctx;
avctx->pix_fmt= PIX_FMT_PAL8;
- a->pic.data[0] = NULL;
a->refdata = av_malloc(avctx->width * avctx->height);
return 0;
}
-static int decode_end(AVCodecContext *avctx){
+static av_cold int decode_end(AVCodecContext *avctx){
QpegContext * const a = avctx->priv_data;
AVFrame * const p= (AVFrame*)&a->pic;
return 0;
}
-AVCodec qpeg_decoder = {
+AVCodec ff_qpeg_decoder = {
"qpeg",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_QPEG,
sizeof(QpegContext),
decode_init,
decode_end,
decode_frame,
CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Q-team QPEG"),
};