LCOV - code coverage report
Current view: top level - libavcodec - v410enc.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 27 30 90.0 %
Date: 2017-12-16 21:16:39 Functions: 2 2 100.0 %

          Line data    Source code
       1             : /*
       2             :  * v410 encoder
       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           1 : static av_cold int v410_encode_init(AVCodecContext *avctx)
      29             : {
      30           1 :     if (avctx->width & 1) {
      31           0 :         av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n");
      32           0 :         return AVERROR_INVALIDDATA;
      33             :     }
      34             : 
      35           1 :     avctx->bits_per_coded_sample = 32;
      36           1 :     avctx->bit_rate = ff_guess_coded_bitrate(avctx);
      37             : 
      38           1 :     return 0;
      39             : }
      40             : 
      41          50 : static int v410_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
      42             :                              const AVFrame *pic, int *got_packet)
      43             : {
      44             :     uint8_t *dst;
      45             :     uint16_t *y, *u, *v;
      46             :     uint32_t val;
      47             :     int i, j, ret;
      48             : 
      49          50 :     if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4,
      50          50 :                                             avctx->width * avctx->height * 4)) < 0)
      51           0 :         return ret;
      52          50 :     dst = pkt->data;
      53             : 
      54             : #if FF_API_CODED_FRAME
      55             : FF_DISABLE_DEPRECATION_WARNINGS
      56          50 :     avctx->coded_frame->key_frame = 1;
      57          50 :     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
      58             : FF_ENABLE_DEPRECATION_WARNINGS
      59             : #endif
      60             : 
      61          50 :     y = (uint16_t *)pic->data[0];
      62          50 :     u = (uint16_t *)pic->data[1];
      63          50 :     v = (uint16_t *)pic->data[2];
      64             : 
      65       14450 :     for (i = 0; i < avctx->height; i++) {
      66     5083200 :         for (j = 0; j < avctx->width; j++) {
      67     5068800 :             val  = u[j] << 2;
      68     5068800 :             val |= y[j] << 12;
      69     5068800 :             val |= (uint32_t) v[j] << 22;
      70     5068800 :             AV_WL32(dst, val);
      71     5068800 :             dst += 4;
      72             :         }
      73       14400 :         y += pic->linesize[0] >> 1;
      74       14400 :         u += pic->linesize[1] >> 1;
      75       14400 :         v += pic->linesize[2] >> 1;
      76             :     }
      77             : 
      78          50 :     pkt->flags |= AV_PKT_FLAG_KEY;
      79          50 :     *got_packet = 1;
      80          50 :     return 0;
      81             : }
      82             : 
      83             : AVCodec ff_v410_encoder = {
      84             :     .name         = "v410",
      85             :     .long_name    = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"),
      86             :     .type         = AVMEDIA_TYPE_VIDEO,
      87             :     .id           = AV_CODEC_ID_V410,
      88             :     .init         = v410_encode_init,
      89             :     .encode2      = v410_encode_frame,
      90             :     .pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P10, AV_PIX_FMT_NONE },
      91             : };

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