| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 "libavutil/mem.h" | ||
| 29 | #include "libavcodec/avcodec.h" | ||
| 30 | #include "libavformat/avformat.h" | ||
| 31 | #include "libavutil/imgutils.h" | ||
| 32 | |||
| 33 | uint8_t *slice_byte_buffer; | ||
| 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 |
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56750 | for (i = 0; i < height; i++) { |
| 54 | 53400 | memcpy(slice_byte_buffer + ctx->width * slice_position + i * ctx->width, | |
| 55 | 53400 | fr->data[0] + offset[0] + i * fr->linesize[0], ctx->width); | |
| 56 | } | ||
| 57 |
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30050 | for (i = 0; i < chroma_h; i++) { |
| 58 | 26700 | 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 |
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30050 | for (i = 0; i < chroma_h; i++) { |
| 62 | 26700 | 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 | const 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 | int byte_buffer_size; | ||
| 79 | int result; | ||
| 80 | |||
| 81 | 1 | draw_horiz_band_called = 0; | |
| 82 | |||
| 83 | 1 | result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL); | |
| 84 |
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1 | if (result < 0) { |
| 85 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't open file\n"); | |
| 86 | ✗ | return result; | |
| 87 | } | ||
| 88 | |||
| 89 | 1 | result = avformat_find_stream_info(fmt_ctx, NULL); | |
| 90 |
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1 | if (result < 0) { |
| 91 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n"); | |
| 92 | ✗ | return result; | |
| 93 | } | ||
| 94 | |||
| 95 | 1 | video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0); | |
| 96 |
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1 | if (video_stream < 0) { |
| 97 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n"); | |
| 98 | ✗ | return -1; | |
| 99 | } | ||
| 100 | |||
| 101 | 1 | origin_par = fmt_ctx->streams[video_stream]->codecpar; | |
| 102 | |||
| 103 | 1 | codec = avcodec_find_decoder(origin_par->codec_id); | |
| 104 |
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1 | if (!codec) { |
| 105 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n"); | |
| 106 | ✗ | return -1; | |
| 107 | } | ||
| 108 | |||
| 109 |
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1 | if (!(codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)) { |
| 110 | ✗ | av_log(NULL, AV_LOG_ERROR, "Codec does not support draw_horiz_band\n"); | |
| 111 | ✗ | return -1; | |
| 112 | } | ||
| 113 | |||
| 114 | 1 | ctx = avcodec_alloc_context3(codec); | |
| 115 |
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1 | if (!ctx) { |
| 116 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n"); | |
| 117 | ✗ | return AVERROR(ENOMEM); | |
| 118 | } | ||
| 119 | |||
| 120 | 1 | result = avcodec_parameters_to_context(ctx, origin_par); | |
| 121 |
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1 | if (result) { |
| 122 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n"); | |
| 123 | ✗ | return result; | |
| 124 | } | ||
| 125 | |||
| 126 | 1 | ctx->draw_horiz_band = draw_horiz_band; | |
| 127 | 1 | ctx->thread_count = 1; | |
| 128 | |||
| 129 | 1 | result = avcodec_open2(ctx, codec, NULL); | |
| 130 |
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1 | if (result < 0) { |
| 131 | ✗ | av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n"); | |
| 132 | ✗ | return result; | |
| 133 | } | ||
| 134 | |||
| 135 | 1 | fr = av_frame_alloc(); | |
| 136 |
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1 | if (!fr) { |
| 137 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n"); | |
| 138 | ✗ | return AVERROR(ENOMEM); | |
| 139 | } | ||
| 140 | |||
| 141 | 1 | pkt = av_packet_alloc(); | |
| 142 |
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1 | if (!pkt) { |
| 143 | ✗ | av_log(NULL, AV_LOG_ERROR, "Cannot allocate packet\n"); | |
| 144 | ✗ | return AVERROR(ENOMEM); | |
| 145 | } | ||
| 146 | |||
| 147 | 1 | byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 32); | |
| 148 | 1 | byte_buffer = av_malloc(byte_buffer_size); | |
| 149 |
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1 | if (!byte_buffer) { |
| 150 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n"); | |
| 151 | ✗ | return AVERROR(ENOMEM); | |
| 152 | } | ||
| 153 | |||
| 154 | 1 | slice_byte_buffer = av_malloc(byte_buffer_size); | |
| 155 |
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1 | if (!slice_byte_buffer) { |
| 156 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n"); | |
| 157 | ✗ | return AVERROR(ENOMEM); | |
| 158 | } | ||
| 159 | 1 | memset(slice_byte_buffer, 0, byte_buffer_size); | |
| 160 | |||
| 161 | 1 | result = 0; | |
| 162 |
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151 | while (result >= 0) { |
| 163 | 151 | result = av_read_frame(fmt_ctx, pkt); | |
| 164 |
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151 | if (result >= 0 && pkt->stream_index != video_stream) { |
| 165 | ✗ | av_packet_unref(pkt); | |
| 166 | ✗ | continue; | |
| 167 | } | ||
| 168 | |||
| 169 | // pkt will be empty on read error/EOF | ||
| 170 | 151 | result = avcodec_send_packet(ctx, pkt); | |
| 171 | |||
| 172 | 151 | av_packet_unref(pkt); | |
| 173 | |||
| 174 |
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151 | if (result < 0) { |
| 175 | ✗ | av_log(NULL, AV_LOG_ERROR, "Error submitting a packet for decoding\n"); | |
| 176 | ✗ | return result; | |
| 177 | } | ||
| 178 | |||
| 179 |
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301 | while (result >= 0) { |
| 180 | 301 | result = avcodec_receive_frame(ctx, fr); | |
| 181 |
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301 | if (result == AVERROR_EOF) |
| 182 | 1 | goto finish; | |
| 183 |
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300 | else if (result == AVERROR(EAGAIN)) { |
| 184 | 150 | result = 0; | |
| 185 | 150 | break; | |
| 186 |
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150 | } else if (result < 0) { |
| 187 | ✗ | av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n"); | |
| 188 | ✗ | return result; | |
| 189 | } | ||
| 190 | |||
| 191 | 150 | number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size, | |
| 192 | 150 | (const uint8_t* const *)fr->data, (const int*) fr->linesize, | |
| 193 | 150 | ctx->pix_fmt, ctx->width, ctx->height, 1); | |
| 194 |
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150 | if (number_of_written_bytes < 0) { |
| 195 | ✗ | av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n"); | |
| 196 | ✗ | return number_of_written_bytes; | |
| 197 | } | ||
| 198 |
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150 | if (draw_horiz_band_called == 0) { |
| 199 | ✗ | av_log(NULL, AV_LOG_ERROR, "draw_horiz_band haven't been called!\n"); | |
| 200 | ✗ | return -1; | |
| 201 | } | ||
| 202 | 150 | if (av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes) != | |
| 203 |
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150 | av_adler32_update(0, (const uint8_t*)slice_byte_buffer, number_of_written_bytes)) { |
| 204 | ✗ | av_log(NULL, AV_LOG_ERROR, "Decoded frames with and without draw_horiz_band are not the same!\n"); | |
| 205 | ✗ | return -1; | |
| 206 | } | ||
| 207 | 150 | av_frame_unref(fr); | |
| 208 | } | ||
| 209 | } | ||
| 210 | |||
| 211 | ✗ | finish: | |
| 212 | 1 | av_packet_free(&pkt); | |
| 213 | 1 | av_frame_free(&fr); | |
| 214 | 1 | avformat_close_input(&fmt_ctx); | |
| 215 | 1 | avcodec_free_context(&ctx); | |
| 216 | 1 | av_freep(&byte_buffer); | |
| 217 | 1 | av_freep(&slice_byte_buffer); | |
| 218 | 1 | return 0; | |
| 219 | } | ||
| 220 | |||
| 221 | 1 | int main(int argc, char **argv) | |
| 222 | { | ||
| 223 |
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1 | if (argc < 2) |
| 224 | { | ||
| 225 | ✗ | av_log(NULL, AV_LOG_ERROR, "Incorrect input: expected %s <name of a video file>\n", argv[0]); | |
| 226 | ✗ | return 1; | |
| 227 | } | ||
| 228 | |||
| 229 |
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1 | if (video_decode(argv[1]) != 0) |
| 230 | ✗ | return 1; | |
| 231 | |||
| 232 | 1 | return 0; | |
| 233 | } | ||
| 234 |