LCOV - code coverage report
Current view: top level - libavcodec - v408dec.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 27 34 79.4 %
Date: 2017-12-18 13:19:42 Functions: 2 2 100.0 %

          Line data    Source code
       1             : /*
       2             :  * v408 decoder
       3             :  * Copyright (c) 2012 Carl Eugen Hoyos
       4             :  *
       5             :  * This file is part of FFmpeg.
       6             :  *
       7             :  * FFmpeg is free software; you can redistribute it and/or
       8             :  * modify it under the terms of the GNU Lesser General Public
       9             :  * License as published by the Free Software Foundation; either
      10             :  * version 2.1 of the License, or (at your option) any later version.
      11             :  *
      12             :  * FFmpeg is distributed in the hope that it will be useful,
      13             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :  * Lesser General Public License for more details.
      16             :  *
      17             :  * You should have received a copy of the GNU Lesser General Public
      18             :  * License along with FFmpeg; if not, write to the Free Software
      19             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      20             :  */
      21             : 
      22             : #include "avcodec.h"
      23             : #include "internal.h"
      24             : 
      25           8 : static av_cold int v408_decode_init(AVCodecContext *avctx)
      26             : {
      27           8 :     avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
      28             : 
      29           8 :     return 0;
      30             : }
      31             : 
      32         200 : static int v408_decode_frame(AVCodecContext *avctx, void *data,
      33             :                              int *got_frame, AVPacket *avpkt)
      34             : {
      35         200 :     AVFrame *pic = data;
      36         200 :     const uint8_t *src = avpkt->data;
      37             :     uint8_t *y, *u, *v, *a;
      38             :     int i, j, ret;
      39             : 
      40         200 :     if (avpkt->size < 4 * avctx->height * avctx->width) {
      41           0 :         av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
      42           0 :         return AVERROR(EINVAL);
      43             :     }
      44             : 
      45         200 :     if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
      46           0 :         return ret;
      47             : 
      48         200 :     pic->key_frame = 1;
      49         200 :     pic->pict_type = AV_PICTURE_TYPE_I;
      50             : 
      51         200 :     y = pic->data[0];
      52         200 :     u = pic->data[1];
      53         200 :     v = pic->data[2];
      54         200 :     a = pic->data[3];
      55             : 
      56       45100 :     for (i = 0; i < avctx->height; i++) {
      57    15309100 :         for (j = 0; j < avctx->width; j++) {
      58    15264200 :             if (avctx->codec_id==AV_CODEC_ID_AYUV) {
      59           0 :                 v[j] = *src++;
      60           0 :                 u[j] = *src++;
      61           0 :                 y[j] = *src++;
      62           0 :                 a[j] = *src++;
      63             :             } else {
      64    15264200 :                 u[j] = *src++;
      65    15264200 :                 y[j] = *src++;
      66    15264200 :                 v[j] = *src++;
      67    15264200 :                 a[j] = *src++;
      68             :             }
      69             :         }
      70             : 
      71       44900 :         y += pic->linesize[0];
      72       44900 :         u += pic->linesize[1];
      73       44900 :         v += pic->linesize[2];
      74       44900 :         a += pic->linesize[3];
      75             :     }
      76             : 
      77         200 :     *got_frame = 1;
      78             : 
      79         200 :     return avpkt->size;
      80             : }
      81             : 
      82             : #if CONFIG_AYUV_DECODER
      83             : AVCodec ff_ayuv_decoder = {
      84             :     .name         = "ayuv",
      85             :     .long_name    = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
      86             :     .type         = AVMEDIA_TYPE_VIDEO,
      87             :     .id           = AV_CODEC_ID_AYUV,
      88             :     .init         = v408_decode_init,
      89             :     .decode       = v408_decode_frame,
      90             :     .capabilities = AV_CODEC_CAP_DR1,
      91             :     .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
      92             : };
      93             : #endif
      94             : #if CONFIG_V408_DECODER
      95             : AVCodec ff_v408_decoder = {
      96             :     .name         = "v408",
      97             :     .long_name    = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
      98             :     .type         = AVMEDIA_TYPE_VIDEO,
      99             :     .id           = AV_CODEC_ID_V408,
     100             :     .init         = v408_decode_init,
     101             :     .decode       = v408_decode_frame,
     102             :     .capabilities = AV_CODEC_CAP_DR1,
     103             :     .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
     104             : };
     105             : #endif

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