/*
* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
+#include "internal.h"
#include "libavutil/bswap.h"
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
static av_cold int decode_init(AVCodecContext *avctx)
{
- if(avctx->width & 1){
+ if (avctx->width & 1) {
av_log(avctx, AV_LOG_ERROR, "v210x needs even width\n");
- return -1;
+ return AVERROR(EINVAL);
}
- avctx->pix_fmt = PIX_FMT_YUV422P16;
- avctx->bits_per_raw_sample= 10;
-
- avctx->coded_frame= avcodec_alloc_frame();
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
+ avctx->bits_per_raw_sample = 10;
return 0;
}
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+ AVPacket *avpkt)
{
- int y=0;
- int width= avctx->width;
- AVFrame *pic= avctx->coded_frame;
- const uint32_t *src= (const uint32_t *)avpkt->data;
+ const uint32_t *src = (const uint32_t *)avpkt->data;
+ AVFrame *pic = data;
+ int width = avctx->width;
+ int y = 0;
uint16_t *ydst, *udst, *vdst, *yend;
+ int ret;
- if(pic->data[0])
- avctx->release_buffer(avctx, pic);
-
- if(avpkt->size < avctx->width * avctx->height * 8 / 3){
+ if (avpkt->size < avctx->width * avctx->height * 8 / 3) {
av_log(avctx, AV_LOG_ERROR, "Packet too small\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if(avpkt->size > avctx->width * avctx->height * 8 / 3){
- av_log(avctx, AV_LOG_ERROR, "Probably padded data, need sample!\n");
+ if (avpkt->size > avctx->width * avctx->height * 8 / 3) {
+ avpriv_request_sample(avctx, "(Probably) padded data");
}
- pic->reference= 0;
- if(avctx->get_buffer(avctx, pic) < 0)
- return -1;
-
- ydst= (uint16_t *)pic->data[0];
- udst= (uint16_t *)pic->data[1];
- vdst= (uint16_t *)pic->data[2];
- yend= ydst + width;
- pic->pict_type= FF_I_TYPE;
- pic->key_frame= 1;
-
- for(;;){
- uint32_t v= be2me_32(*src++);
- *udst++= (v>>16) & 0xFFC0;
- *ydst++= (v>>6 ) & 0xFFC0;
- *vdst++= (v<<4 ) & 0xFFC0;
-
- v= be2me_32(*src++);
- *ydst++= (v>>16) & 0xFFC0;
-
- if(ydst >= yend){
- ydst+= pic->linesize[0]/2 - width;
- udst+= pic->linesize[1]/2 - width/2;
- vdst+= pic->linesize[2]/2 - width/2;
- yend= ydst + width;
- if(++y >= avctx->height)
+ if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
+ return ret;
+
+ ydst = (uint16_t *)pic->data[0];
+ udst = (uint16_t *)pic->data[1];
+ vdst = (uint16_t *)pic->data[2];
+ yend = ydst + width;
+ pic->pict_type = AV_PICTURE_TYPE_I;
+ pic->key_frame = 1;
+
+ for (;;) {
+ uint32_t v = av_be2ne32(*src++);
+ *udst++ = (v >> 16) & 0xFFC0;
+ *ydst++ = (v >> 6 ) & 0xFFC0;
+ *vdst++ = (v << 4 ) & 0xFFC0;
+
+ v = av_be2ne32(*src++);
+ *ydst++ = (v >> 16) & 0xFFC0;
+
+ if (ydst >= yend) {
+ ydst += pic->linesize[0] / 2 - width;
+ udst += pic->linesize[1] / 2 - width / 2;
+ vdst += pic->linesize[2] / 2 - width / 2;
+ yend = ydst + width;
+ if (++y >= avctx->height)
break;
}
- *udst++= (v>>6 ) & 0xFFC0;
- *ydst++= (v<<4 ) & 0xFFC0;
+ *udst++ = (v >> 6 ) & 0xFFC0;
+ *ydst++ = (v << 4 ) & 0xFFC0;
- v= be2me_32(*src++);
- *vdst++= (v>>16) & 0xFFC0;
- *ydst++= (v>>6 ) & 0xFFC0;
+ v = av_be2ne32(*src++);
+ *vdst++ = (v >> 16) & 0xFFC0;
+ *ydst++ = (v >> 6 ) & 0xFFC0;
- if(ydst >= yend){
- ydst+= pic->linesize[0]/2 - width;
- udst+= pic->linesize[1]/2 - width/2;
- vdst+= pic->linesize[2]/2 - width/2;
- yend= ydst + width;
- if(++y >= avctx->height)
+ if (ydst >= yend) {
+ ydst += pic->linesize[0] / 2 - width;
+ udst += pic->linesize[1] / 2 - width / 2;
+ vdst += pic->linesize[2] / 2 - width / 2;
+ yend = ydst + width;
+ if (++y >= avctx->height)
break;
}
- *udst++= (v<<4 ) & 0xFFC0;
-
- v= be2me_32(*src++);
- *ydst++= (v>>16) & 0xFFC0;
- *vdst++= (v>>6 ) & 0xFFC0;
- *ydst++= (v<<4 ) & 0xFFC0;
- if(ydst >= yend){
- ydst+= pic->linesize[0]/2 - width;
- udst+= pic->linesize[1]/2 - width/2;
- vdst+= pic->linesize[2]/2 - width/2;
- yend= ydst + width;
- if(++y >= avctx->height)
+ *udst++ = (v << 4 ) & 0xFFC0;
+
+ v = av_be2ne32(*src++);
+ *ydst++ = (v >> 16) & 0xFFC0;
+ *vdst++ = (v >> 6 ) & 0xFFC0;
+ *ydst++ = (v << 4 ) & 0xFFC0;
+ if (ydst >= yend) {
+ ydst += pic->linesize[0] / 2 - width;
+ udst += pic->linesize[1] / 2 - width / 2;
+ vdst += pic->linesize[2] / 2 - width / 2;
+ yend = ydst + width;
+ if (++y >= avctx->height)
break;
}
}
- *data_size=sizeof(AVFrame);
- *(AVFrame*)data= *avctx->coded_frame;
+ *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 v210x_decoder = {
- "v210x",
- CODEC_TYPE_VIDEO,
- CODEC_ID_V210X,
- 0,
- decode_init,
- NULL,
- decode_close,
- decode_frame,
- CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
+AVCodec ff_v210x_decoder = {
+ .name = "v210x",
+ .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_V210X,
+ .init = decode_init,
+ .decode = decode_frame,
+ .capabilities = CODEC_CAP_DR1,
};
projects / ffmpeg / blobdiff