LCOV - code coverage report
Current view: top level - libavcodec - rawenc.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 20 30 66.7 %
Date: 2017-12-18 13:19:42 Functions: 2 2 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Raw Video Encoder
       3             :  * Copyright (c) 2001 Fabrice Bellard
       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             : /**
      23             :  * @file
      24             :  * Raw Video Encoder
      25             :  */
      26             : 
      27             : #include "avcodec.h"
      28             : #include "raw.h"
      29             : #include "internal.h"
      30             : #include "libavutil/pixdesc.h"
      31             : #include "libavutil/intreadwrite.h"
      32             : #include "libavutil/imgutils.h"
      33             : #include "libavutil/internal.h"
      34             : 
      35        3691 : static av_cold int raw_encode_init(AVCodecContext *avctx)
      36             : {
      37        3691 :     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
      38             : 
      39             : #if FF_API_CODED_FRAME
      40             : FF_DISABLE_DEPRECATION_WARNINGS
      41        3691 :     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
      42             : FF_ENABLE_DEPRECATION_WARNINGS
      43             : #endif
      44        3691 :     avctx->bits_per_coded_sample = av_get_bits_per_pixel(desc);
      45        3691 :     if(!avctx->codec_tag)
      46        3691 :         avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt);
      47        3691 :     avctx->bit_rate = ff_guess_coded_bitrate(avctx);
      48             : 
      49        3691 :     return 0;
      50             : }
      51             : 
      52       75523 : static int raw_encode(AVCodecContext *avctx, AVPacket *pkt,
      53             :                       const AVFrame *frame, int *got_packet)
      54             : {
      55       75523 :     int ret = av_image_get_buffer_size(frame->format,
      56             :                                        frame->width, frame->height, 1);
      57             : 
      58       75523 :     if (ret < 0)
      59           0 :         return ret;
      60             : 
      61       75523 :     if ((ret = ff_alloc_packet2(avctx, pkt, ret, ret)) < 0)
      62           0 :         return ret;
      63      151046 :     if ((ret = av_image_copy_to_buffer(pkt->data, pkt->size,
      64       75523 :                                        (const uint8_t **)frame->data, frame->linesize,
      65       75523 :                                        frame->format,
      66             :                                        frame->width, frame->height, 1)) < 0)
      67           0 :         return ret;
      68             : 
      69       75523 :     if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 &&
      70           0 :        frame->format   == AV_PIX_FMT_YUYV422) {
      71             :         int x;
      72           0 :         for(x = 1; x < frame->height*frame->width*2; x += 2)
      73           0 :             pkt->data[x] ^= 0x80;
      74       75523 :     } else if (avctx->codec_tag == AV_RL32("b64a") && ret > 0 &&
      75           0 :         frame->format == AV_PIX_FMT_RGBA64BE) {
      76             :         uint64_t v;
      77             :         int x;
      78           0 :         for (x = 0; x < frame->height * frame->width; x++) {
      79           0 :             v = AV_RB64(&pkt->data[8 * x]);
      80           0 :             AV_WB64(&pkt->data[8 * x], v << 48 | v >> 16);
      81             :         }
      82             :     }
      83       75523 :     pkt->flags |= AV_PKT_FLAG_KEY;
      84       75523 :     *got_packet = 1;
      85       75523 :     return 0;
      86             : }
      87             : 
      88             : AVCodec ff_rawvideo_encoder = {
      89             :     .name           = "rawvideo",
      90             :     .long_name      = NULL_IF_CONFIG_SMALL("raw video"),
      91             :     .type           = AVMEDIA_TYPE_VIDEO,
      92             :     .id             = AV_CODEC_ID_RAWVIDEO,
      93             :     .init           = raw_encode_init,
      94             :     .encode2        = raw_encode,
      95             : };

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