LCOV - code coverage report
Current view: top level - libavcodec - v410dec.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 27 34 79.4 %
Date: 2017-12-17 04:34:43 Functions: 2 2 100.0 %

          Line data    Source code
       1             : /*
       2             :  * v410 decoder
       3             :  *
       4             :  * Copyright (c) 2011 Derek Buitenhuis
       5             :  *
       6             :  * This file is part of FFmpeg.
       7             :  *
       8             :  * FFmpeg is free software; you can redistribute it and/or
       9             :  * modify it under the terms of the GNU Lesser General Public
      10             :  * License as published by the Free Software Foundation; either
      11             :  * version 2.1 of the License, or (at your option) any later version.
      12             :  *
      13             :  * FFmpeg is distributed in the hope that it will be useful,
      14             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      16             :  * Lesser General Public License for more details.
      17             :  *
      18             :  * You should have received a copy of the GNU Lesser General Public
      19             :  * License along with FFmpeg; if not, write to the Free Software
      20             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      21             :  */
      22             : 
      23             : #include "libavutil/common.h"
      24             : #include "libavutil/intreadwrite.h"
      25             : #include "avcodec.h"
      26             : #include "internal.h"
      27             : 
      28           2 : static av_cold int v410_decode_init(AVCodecContext *avctx)
      29             : {
      30           2 :     avctx->pix_fmt             = AV_PIX_FMT_YUV444P10;
      31           2 :     avctx->bits_per_raw_sample = 10;
      32             : 
      33           2 :     if (avctx->width & 1) {
      34           0 :         if (avctx->err_recognition & AV_EF_EXPLODE) {
      35           0 :             av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n");
      36           0 :             return AVERROR_INVALIDDATA;
      37             :         } else {
      38           0 :             av_log(avctx, AV_LOG_WARNING, "v410 requires width to be even, continuing anyway.\n");
      39             :         }
      40             :     }
      41             : 
      42           2 :     return 0;
      43             : }
      44             : 
      45           1 : static int v410_decode_frame(AVCodecContext *avctx, void *data,
      46             :                              int *got_frame, AVPacket *avpkt)
      47             : {
      48           1 :     AVFrame *pic = data;
      49           1 :     uint8_t *src = avpkt->data;
      50             :     uint16_t *y, *u, *v;
      51             :     uint32_t val;
      52             :     int i, j, ret;
      53             : 
      54           1 :     if (avpkt->size < 4 * avctx->height * avctx->width) {
      55           0 :         av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
      56           0 :         return AVERROR(EINVAL);
      57             :     }
      58             : 
      59           1 :     if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
      60           0 :         return ret;
      61             : 
      62           1 :     pic->key_frame = 1;
      63           1 :     pic->pict_type = AV_PICTURE_TYPE_I;
      64             : 
      65           1 :     y = (uint16_t *)pic->data[0];
      66           1 :     u = (uint16_t *)pic->data[1];
      67           1 :     v = (uint16_t *)pic->data[2];
      68             : 
      69         257 :     for (i = 0; i < avctx->height; i++) {
      70       65792 :         for (j = 0; j < avctx->width; j++) {
      71       65536 :             val = AV_RL32(src);
      72             : 
      73       65536 :             u[j] = (val >>  2) & 0x3FF;
      74       65536 :             y[j] = (val >> 12) & 0x3FF;
      75       65536 :             v[j] = (val >> 22);
      76             : 
      77       65536 :             src += 4;
      78             :         }
      79             : 
      80         256 :         y += pic->linesize[0] >> 1;
      81         256 :         u += pic->linesize[1] >> 1;
      82         256 :         v += pic->linesize[2] >> 1;
      83             :     }
      84             : 
      85           1 :     *got_frame = 1;
      86             : 
      87           1 :     return avpkt->size;
      88             : }
      89             : 
      90             : AVCodec ff_v410_decoder = {
      91             :     .name         = "v410",
      92             :     .long_name    = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"),
      93             :     .type         = AVMEDIA_TYPE_VIDEO,
      94             :     .id           = AV_CODEC_ID_V410,
      95             :     .init         = v410_decode_init,
      96             :     .decode       = v410_decode_frame,
      97             :     .capabilities = AV_CODEC_CAP_DR1,
      98             : };

Generated by: LCOV version 1.13