LCOV - code coverage report
Current view: top level - src/tests/api - api-band-test.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 89 122 73.0 %
Date: 2017-09-20 05:29:53 Functions: 3 3 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2015 Ludmila Glinskih
       3             :  *
       4             :  * Permission is hereby granted, free of charge, to any person obtaining a copy
       5             :  * of this software and associated documentation files (the "Software"), to deal
       6             :  * in the Software without restriction, including without limitation the rights
       7             :  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       8             :  * copies of the Software, and to permit persons to whom the Software is
       9             :  * furnished to do so, subject to the following conditions:
      10             :  *
      11             :  * The above copyright notice and this permission notice shall be included in
      12             :  * all copies or substantial portions of the Software.
      13             :  *
      14             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      15             :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      16             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      17             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      18             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      19             :  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      20             :  * THE SOFTWARE.
      21             :  */
      22             : 
      23             : /**
      24             :  * draw_horiz_band test.
      25             :  */
      26             : 
      27             : #include "libavutil/adler32.h"
      28             : #include "libavcodec/avcodec.h"
      29             : #include "libavformat/avformat.h"
      30             : #include "libavutil/imgutils.h"
      31             : 
      32             : uint8_t *slice_byte_buffer;
      33             : uint8_t slice_byte_buffer_size;
      34             : int draw_horiz_band_called;
      35             : 
      36        3350 : static void draw_horiz_band(AVCodecContext *ctx, const AVFrame *fr, int offset[4],
      37             :                             int slice_position, int type, int height)
      38             : {
      39             :     int i;
      40             :     const AVPixFmtDescriptor *pix_fmt_desc;
      41             :     int chroma_w, chroma_h;
      42             :     int shift_slice_position;
      43             :     int shift_height;
      44             : 
      45        3350 :     draw_horiz_band_called = 1;
      46             : 
      47        3350 :     pix_fmt_desc = av_pix_fmt_desc_get(ctx->pix_fmt);
      48        3350 :     chroma_w = -((-ctx->width) >> pix_fmt_desc->log2_chroma_w);
      49        3350 :     chroma_h = -((-height) >> pix_fmt_desc->log2_chroma_h);
      50        3350 :     shift_slice_position = -((-slice_position) >> pix_fmt_desc->log2_chroma_h);
      51        3350 :     shift_height = -((-ctx->height) >> pix_fmt_desc->log2_chroma_h);
      52             : 
      53       56750 :     for (i = 0; i < height; i++) {
      54      106800 :         memcpy(slice_byte_buffer + ctx->width * slice_position + i * ctx->width,
      55      106800 :                fr->data[0] + offset[0] + i * fr->linesize[0], ctx->width);
      56             :     }
      57       30050 :     for (i = 0; i < chroma_h; i++) {
      58       53400 :         memcpy(slice_byte_buffer + ctx->width * ctx->height + chroma_w * shift_slice_position + i * chroma_w,
      59       26700 :                fr->data[1] + offset[1] + i * fr->linesize[1], chroma_w);
      60             :     }
      61       30050 :     for (i = 0; i < chroma_h; i++) {
      62       53400 :         memcpy(slice_byte_buffer + ctx->width * ctx->height + chroma_w * shift_height + chroma_w * shift_slice_position + i * chroma_w,
      63       26700 :                fr->data[2] + offset[2] + i * fr->linesize[2], chroma_w);
      64             :     }
      65        3350 : }
      66             : 
      67           1 : static int video_decode(const char *input_filename)
      68             : {
      69           1 :     AVCodec *codec = NULL;
      70           1 :     AVCodecContext *ctx= NULL;
      71           1 :     AVCodecParameters *origin_par = NULL;
      72           1 :     uint8_t *byte_buffer = NULL;
      73           1 :     AVFrame *fr = NULL;
      74             :     AVPacket pkt;
      75           1 :     AVFormatContext *fmt_ctx = NULL;
      76             :     int number_of_written_bytes;
      77             :     int video_stream;
      78           1 :     int got_frame = 0;
      79             :     int byte_buffer_size;
      80             :     int result;
      81           1 :     int end_of_stream = 0;
      82             : 
      83           1 :     draw_horiz_band_called = 0;
      84             : 
      85           1 :     result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL);
      86           1 :     if (result < 0) {
      87           0 :         av_log(NULL, AV_LOG_ERROR, "Can't open file\n");
      88           0 :         return result;
      89             :     }
      90             : 
      91           1 :     result = avformat_find_stream_info(fmt_ctx, NULL);
      92           1 :     if (result < 0) {
      93           0 :         av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n");
      94           0 :         return result;
      95             :     }
      96             : 
      97           1 :     video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
      98           1 :     if (video_stream < 0) {
      99           0 :       av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n");
     100           0 :       return -1;
     101             :     }
     102             : 
     103           1 :     origin_par = fmt_ctx->streams[video_stream]->codecpar;
     104             : 
     105           1 :     codec = avcodec_find_decoder(origin_par->codec_id);
     106           1 :     if (!codec) {
     107           0 :         av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n");
     108           0 :         return -1;
     109             :     }
     110             : 
     111           1 :     ctx = avcodec_alloc_context3(codec);
     112           1 :     if (!ctx) {
     113           0 :         av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n");
     114           0 :         return AVERROR(ENOMEM);
     115             :     }
     116             : 
     117           1 :     result = avcodec_parameters_to_context(ctx, origin_par);
     118           1 :     if (result) {
     119           0 :         av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n");
     120           0 :         return result;
     121             :     }
     122             : 
     123           1 :     ctx->draw_horiz_band = draw_horiz_band;
     124           1 :     ctx->thread_count = 1;
     125             : 
     126           1 :     result = avcodec_open2(ctx, codec, NULL);
     127           1 :     if (result < 0) {
     128           0 :         av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n");
     129           0 :         return result;
     130             :     }
     131             : 
     132           1 :     fr = av_frame_alloc();
     133           1 :     if (!fr) {
     134           0 :         av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n");
     135           0 :         return AVERROR(ENOMEM);
     136             :     }
     137             : 
     138           1 :     if (strcmp(codec->name, "flv") && strcmp(codec->name, "mpeg4") && strcmp(codec->name, "huffyuv")) {
     139           0 :         av_log(NULL, AV_LOG_ERROR, "Wrong codec\n");
     140           0 :         return -1;
     141             :     }
     142             : 
     143           1 :     byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 32);
     144           1 :     byte_buffer = av_malloc(byte_buffer_size);
     145           1 :     if (!byte_buffer) {
     146           0 :         av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
     147           0 :         return AVERROR(ENOMEM);
     148             :     }
     149             : 
     150           1 :     slice_byte_buffer = av_malloc(byte_buffer_size);
     151           1 :     if (!slice_byte_buffer) {
     152           0 :         av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
     153           0 :         return AVERROR(ENOMEM);
     154             :     }
     155           1 :     memset(slice_byte_buffer, 0, byte_buffer_size);
     156           1 :     slice_byte_buffer_size = byte_buffer_size;
     157             : 
     158           1 :     av_init_packet(&pkt);
     159             :     do {
     160         151 :         if (!end_of_stream) {
     161         151 :             if (av_read_frame(fmt_ctx, &pkt) < 0) {
     162           1 :                 end_of_stream = 1;
     163             :             }
     164             :         }
     165         151 :         if (end_of_stream) {
     166           1 :             pkt.data = NULL;
     167           1 :             pkt.size = 0;
     168             :         }
     169         151 :         if (pkt.stream_index == video_stream || end_of_stream) {
     170         151 :             got_frame = 0;
     171         151 :             result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt);
     172         151 :             if (result < 0) {
     173           0 :                 av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n");
     174           0 :                 return result;
     175             :             }
     176         151 :             if (got_frame) {
     177         600 :                 number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
     178         150 :                                         (const uint8_t* const *)fr->data, (const int*) fr->linesize,
     179         450 :                                         ctx->pix_fmt, ctx->width, ctx->height, 1);
     180         150 :                 if (number_of_written_bytes < 0) {
     181           0 :                     av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
     182           0 :                     return number_of_written_bytes;
     183             :                 }
     184         150 :                 if (draw_horiz_band_called == 0) {
     185           0 :                     av_log(NULL, AV_LOG_ERROR, "draw_horiz_band haven't been called!\n");
     186           0 :                     return -1;
     187             :                 }
     188         300 :                 if (av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes) !=
     189         150 :                     av_adler32_update(0, (const uint8_t*)slice_byte_buffer, number_of_written_bytes)) {
     190           0 :                     av_log(NULL, AV_LOG_ERROR, "Decoded frames with and without draw_horiz_band are not the same!\n");
     191           0 :                     return -1;
     192             :                 }
     193             :             }
     194         151 :             av_packet_unref(&pkt);
     195         151 :             av_init_packet(&pkt);
     196             :         }
     197         151 :     } while (!end_of_stream || got_frame);
     198             : 
     199           1 :     av_packet_unref(&pkt);
     200           1 :     av_frame_free(&fr);
     201           1 :     avcodec_close(ctx);
     202           1 :     avformat_close_input(&fmt_ctx);
     203           1 :     avcodec_free_context(&ctx);
     204           1 :     av_freep(&byte_buffer);
     205           1 :     av_freep(&slice_byte_buffer);
     206           1 :     return 0;
     207             : }
     208             : 
     209           1 : int main(int argc, char **argv)
     210             : {
     211           1 :     if (argc < 2)
     212             :     {
     213           0 :         av_log(NULL, AV_LOG_ERROR, "Incorrect input: expected %s <name of a video file>\nNote that test works only for huffyuv, flv and mpeg4 decoders\n", argv[0]);
     214           0 :         return 1;
     215             :     }
     216             : 
     217           1 :     av_register_all();
     218             : 
     219           1 :     if (video_decode(argv[1]) != 0)
     220           0 :         return 1;
     221             : 
     222           1 :     return 0;
     223             : }

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