typedef struct {
CCodec *codec;
+ unsigned int buf_size;
uint8_t *output;
} UtVideoContext;
UtVideoExtra info;
int format;
int begin_ret;
- unsigned int buf_size;
- if(avctx->extradata_size != 4*4)
- {
+ if (avctx->extradata_size != 4*4) {
av_log(avctx, AV_LOG_ERROR, "Extradata size mismatch.\n");
return -1;
}
info.flags = AV_RL32(avctx->extradata + 12);
/* Pick format based on FOURCC */
- switch(avctx->codec_tag)
- {
- case MKTAG('U', 'L', 'Y', '0'):
- avctx->pix_fmt = PIX_FMT_YUV420P;
- format = UTVF_YV12;
- break;
- case MKTAG('U', 'L', 'Y', '2'):
- avctx->pix_fmt = PIX_FMT_YUYV422;
- format = UTVF_YUY2;
- break;
- case MKTAG('U', 'L', 'R', 'G'):
- avctx->pix_fmt = PIX_FMT_BGR24;
- format = UTVF_RGB24_WIN;
- break;
- case MKTAG('U', 'L', 'R', 'A'):
- avctx->pix_fmt = PIX_FMT_RGB32;
- format = UTVF_RGB32_WIN;
- break;
- default:
- av_log(avctx, AV_LOG_ERROR,
- "Not a Ut Video FOURCC: %X\n", avctx->codec_tag);
- return -1;
+ switch (avctx->codec_tag) {
+ case MKTAG('U', 'L', 'Y', '0'):
+ avctx->pix_fmt = PIX_FMT_YUV420P;
+ format = UTVF_YV12;
+ break;
+ case MKTAG('U', 'L', 'Y', '2'):
+ avctx->pix_fmt = PIX_FMT_YUYV422;
+ format = UTVF_YUY2;
+ break;
+ case MKTAG('U', 'L', 'R', 'G'):
+ avctx->pix_fmt = PIX_FMT_BGR24;
+ format = UTVF_RGB24_WIN;
+ break;
+ case MKTAG('U', 'L', 'R', 'A'):
+ avctx->pix_fmt = PIX_FMT_RGB32;
+ format = UTVF_RGB32_WIN;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR,
+ "Not a Ut Video FOURCC: %X\n", avctx->codec_tag);
+ return -1;
}
/* Only allocate the buffer once */
- buf_size = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
- utv->output = (uint8_t *)av_malloc(buf_size * sizeof(uint8_t));
+ utv->buf_size = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
+ utv->output = (uint8_t *)av_malloc(utv->buf_size * sizeof(uint8_t));
- if(utv->output == NULL)
- {
+ if (utv->output == NULL) {
av_log(avctx, AV_LOG_ERROR, "Unable to allocate output buffer.\n");
return -1;
}
CBGROSSWIDTH_WINDOWS, &info, sizeof(UtVideoExtra));
/* Check to see if the decoder initlized properly */
- if(begin_ret != 0)
- {
+ if (begin_ret != 0) {
av_log(avctx, AV_LOG_ERROR,
"Could not initialize decoder: %d\n", begin_ret);
return -1;
utv->codec->DecodeFrame(utv->output, avpkt->data, true);
/* Set the output data depending on the colorspace */
- switch(avctx->pix_fmt)
- {
- case PIX_FMT_YUV420P:
- pic->linesize[0] = w;
- pic->linesize[1] = pic->linesize[2] = w / 2;
- pic->data[0] = utv->output;
- pic->data[2] = utv->output + (w * h);
- pic->data[1] = pic->data[2] + (w * h / 4);
- break;
- case PIX_FMT_YUYV422:
- pic->linesize[0] = w * 2;
- pic->data[0] = utv->output;
- break;
- case PIX_FMT_BGR24:
- case PIX_FMT_RGB32:
- /* Make the linesize negative, since Ut Video uses bottom-up BGR */
- pic->linesize[0] = -1 * w * (avctx->pix_fmt == PIX_FMT_BGR24 ? 3 : 4);
- pic->data[0] = utv->output + utv->buf_size + pic->linesize[0];
- break;
- }
+ switch (avctx->pix_fmt) {
+ case PIX_FMT_YUV420P:
+ pic->linesize[0] = w;
+ pic->linesize[1] = pic->linesize[2] = w / 2;
+ pic->data[0] = utv->output;
+ pic->data[2] = utv->output + (w * h);
+ pic->data[1] = pic->data[2] + (w * h / 4);
+ break;
+ case PIX_FMT_YUYV422:
+ pic->linesize[0] = w * 2;
+ pic->data[0] = utv->output;
+ break;
+ case PIX_FMT_BGR24:
+ case PIX_FMT_RGB32:
+ /* Make the linesize negative, since Ut Video uses bottom-up BGR */
+ pic->linesize[0] = -1 * w * (avctx->pix_fmt == PIX_FMT_BGR24 ? 3 : 4);
+ pic->data[0] = utv->output + utv->buf_size + pic->linesize[0];
+ break;
+ }
*data_size = sizeof(AVFrame);
*(AVFrame *)data = *pic;