*/
#include "avcodec.h"
+#include "internal.h"
+#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
static av_cold int decode_init(AVCodecContext *avctx)
{
- avctx->pix_fmt = PIX_FMT_YUV420P;
- avctx->coded_frame = avcodec_alloc_frame();
- if (!avctx->coded_frame)
- return AVERROR(ENOMEM);
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
return 0;
}
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
{
int h, w;
- AVFrame *pic = avctx->coded_frame;
+ AVFrame *pic = data;
const uint8_t *src = avpkt->data;
uint8_t *Y1, *Y2, *U, *V;
int ret;
- if (pic->data[0])
- avctx->release_buffer(avctx, pic);
-
if (avpkt->size < avctx->width * avctx->height * 3 / 2 + 16) {
av_log(avctx, AV_LOG_ERROR, "packet too small\n");
return AVERROR_INVALIDDATA;
}
- pic->reference = 0;
- if ((ret = avctx->get_buffer(avctx, pic)) < 0)
+ if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
return ret;
pic->pict_type = AV_PICTURE_TYPE_I;
pic->key_frame = 1;
if (AV_RL32(src) != 0x01000002) {
- av_log_ask_for_sample(avctx, "Unknown frame header %X\n", AV_RL32(src));
+ avpriv_request_sample(avctx, "Frame header %X", AV_RL32(src));
return AVERROR_PATCHWELCOME;
}
src += 16;
V = pic->data[2];
for (h = 0; h < avctx->height; h += 2) {
for (w = 0; w < avctx->width; w += 2) {
- AV_WN16A(Y1 + w, AV_RN16A(src));
- AV_WN16A(Y2 + w, AV_RN16A(src + 2));
+ AV_COPY16(Y1 + w, src);
+ AV_COPY16(Y2 + w, src + 2);
U[w >> 1] = src[4] + 0x80;
V[w >> 1] = src[5] + 0x80;
src += 6;
V += pic->linesize[2];
}
- *data_size = sizeof(AVFrame);
- *(AVFrame*)data = *pic;
+ *got_frame = 1;
return avpkt->size;
}
-static av_cold int decode_close(AVCodecContext *avctx)
-{
- AVFrame *pic = avctx->coded_frame;
- if (pic->data[0])
- avctx->release_buffer(avctx, pic);
- av_freep(&avctx->coded_frame);
-
- return 0;
-}
-
AVCodec ff_dxtory_decoder = {
.name = "dxtory",
.long_name = NULL_IF_CONFIG_SMALL("Dxtory"),
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_DXTORY,
+ .id = AV_CODEC_ID_DXTORY,
.init = decode_init,
- .close = decode_close,
.decode = decode_frame,
.capabilities = CODEC_CAP_DR1,
};