FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/tests/api/api-seek-test.c
Date: 2024-02-29 09:57:37
Exec Total Coverage
Lines: 115 172 66.9%
Functions: 6 6 100.0%
Branches: 63 100 63.0%

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 * Seek 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 int64_t *pts_array;
33 uint32_t *crc_array;
34 int size_of_array;
35 int number_of_elements;
36
37 25 static int add_crc_to_array(uint32_t crc, int64_t pts)
38 {
39
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 23 times.
25 if (size_of_array <= number_of_elements) {
40
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
2 if (size_of_array == 0)
41 1 size_of_array = 10;
42 2 size_of_array *= 2;
43 2 crc_array = av_realloc_f(crc_array, size_of_array, sizeof(uint32_t));
44 2 pts_array = av_realloc_f(pts_array, size_of_array, sizeof(int64_t));
45
2/4
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
2 if ((crc_array == NULL) || (pts_array == NULL)) {
46 av_log(NULL, AV_LOG_ERROR, "Can't allocate array to store crcs\n");
47 return AVERROR(ENOMEM);
48 }
49 }
50 25 crc_array[number_of_elements] = crc;
51 25 pts_array[number_of_elements] = pts;
52 25 number_of_elements++;
53 25 return 0;
54 }
55
56 19 static int compare_crc_in_array(uint32_t crc, int64_t pts)
57 {
58 int i;
59
1/2
✓ Branch 0 taken 163 times.
✗ Branch 1 not taken.
163 for (i = 0; i < number_of_elements; i++) {
60
2/2
✓ Branch 0 taken 19 times.
✓ Branch 1 taken 144 times.
163 if (pts_array[i] == pts) {
61
1/2
✓ Branch 0 taken 19 times.
✗ Branch 1 not taken.
19 if (crc_array[i] == crc) {
62 19 printf("Comparing 0x%08"PRIx32" %"PRId64" %d is OK\n", crc, pts, i);
63 19 return 0;
64 }
65 else {
66 av_log(NULL, AV_LOG_ERROR, "Incorrect crc of a frame after seeking\n");
67 return -1;
68 }
69 }
70 }
71 av_log(NULL, AV_LOG_ERROR, "Incorrect pts of a frame after seeking\n");
72 return -1;
73 }
74
75 29 static int compute_crc_of_packets(AVFormatContext *fmt_ctx, int video_stream,
76 AVCodecContext *ctx, AVPacket *pkt, AVFrame *fr,
77 uint64_t ts_start, uint64_t ts_end, int no_seeking)
78 {
79 int number_of_written_bytes;
80 int result;
81 int byte_buffer_size;
82 uint8_t *byte_buffer;
83 uint32_t crc;
84
85 29 byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 16);
86 29 byte_buffer = av_malloc(byte_buffer_size);
87
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 29 times.
29 if (!byte_buffer) {
88 av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
89 return AVERROR(ENOMEM);
90 }
91
92
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 1 times.
29 if (!no_seeking) {
93 28 result = av_seek_frame(fmt_ctx, video_stream, ts_start, AVSEEK_FLAG_ANY);
94 28 printf("Seeking to %"PRId64", computing crc for frames with pts < %"PRId64"\n", ts_start, ts_end);
95
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28 times.
28 if (result < 0) {
96 av_log(NULL, AV_LOG_ERROR, "Error in seeking\n");
97 return result;
98 }
99 28 avcodec_flush_buffers(ctx);
100 }
101
102 do {
103 54 result = av_read_frame(fmt_ctx, pkt);
104
3/4
✓ Branch 0 taken 53 times.
✓ Branch 1 taken 1 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 53 times.
54 if (result >= 0 && pkt->stream_index != video_stream) {
105 av_packet_unref(pkt);
106 continue;
107 }
108
109
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 53 times.
54 if (result < 0)
110 1 result = avcodec_send_packet(ctx, NULL);
111 else {
112
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 53 times.
53 if (pkt->pts == AV_NOPTS_VALUE) {
113 av_log(NULL, AV_LOG_ERROR, "Error: frames doesn't have pts values\n");
114 return -1;
115 }
116 53 result = avcodec_send_packet(ctx, pkt);
117 }
118
119 54 av_packet_unref(pkt);
120
121
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 54 times.
54 if (result < 0) {
122 av_log(NULL, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
123 return result;
124 }
125
126
1/2
✓ Branch 0 taken 98 times.
✗ Branch 1 not taken.
98 while (result >= 0) {
127 98 result = avcodec_receive_frame(ctx, fr);
128
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 97 times.
98 if (result == AVERROR_EOF)
129 1 goto finish;
130
2/2
✓ Branch 0 taken 44 times.
✓ Branch 1 taken 53 times.
97 else if (result == AVERROR(EAGAIN)) {
131 44 result = 0;
132 44 break;
133
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 53 times.
53 } else if (result < 0) {
134 av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n");
135 return result;
136 }
137
138 53 number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
139 53 (const uint8_t* const *)fr->data, (const int*) fr->linesize,
140 ctx->pix_fmt, ctx->width, ctx->height, 1);
141
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 53 times.
53 if (number_of_written_bytes < 0) {
142 av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
143 return number_of_written_bytes;
144 }
145
4/4
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 25 times.
✓ Branch 2 taken 9 times.
✓ Branch 3 taken 19 times.
53 if ((!no_seeking) && (fr->pts > ts_end))
146 9 break;
147 44 crc = av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes);
148 44 printf("%10"PRId64", 0x%08"PRIx32"\n", fr->pts, crc);
149
2/2
✓ Branch 0 taken 25 times.
✓ Branch 1 taken 19 times.
44 if (no_seeking) {
150
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 25 times.
25 if (add_crc_to_array(crc, fr->pts) < 0)
151 return -1;
152 }
153 else {
154
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 19 times.
19 if (compare_crc_in_array(crc, fr->pts) < 0)
155 return -1;
156 }
157 44 av_frame_unref(fr);
158 }
159
4/6
✗ Branch 0 not taken.
✓ Branch 1 taken 53 times.
✓ Branch 2 taken 25 times.
✓ Branch 3 taken 28 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 28 times.
53 } while (result >= 0 && (no_seeking || (fr->pts + fr->duration <= ts_end)));
160
161 28 finish:
162 29 av_freep(&byte_buffer);
163
164 29 return 0;
165 }
166
167 2 static long int read_seek_range(const char *string_with_number)
168 {
169 long int number;
170 2 char *end_of_string = NULL;
171 2 number = strtol(string_with_number, &end_of_string, 10);
172
2/4
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
2 if ((strlen(string_with_number) != end_of_string - string_with_number) || (number < 0)) {
173 av_log(NULL, AV_LOG_ERROR, "Incorrect input ranges of seeking\n");
174 return -1;
175 }
176
2/4
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
2 else if ((number == LONG_MAX) || (number == LONG_MIN)) {
177 if (errno == ERANGE) {
178 av_log(NULL, AV_LOG_ERROR, "Incorrect input ranges of seeking\n");
179 return -1;
180 }
181 }
182 2 return number;
183 }
184
185 1 static int seek_test(const char *input_filename, const char *start, const char *end)
186 {
187 1 const AVCodec *codec = NULL;
188 1 AVCodecContext *ctx= NULL;
189 1 AVCodecParameters *origin_par = NULL;
190 1 AVPacket *pkt = NULL;
191 1 AVFrame *fr = NULL;
192 1 AVFormatContext *fmt_ctx = NULL;
193 int video_stream;
194 int result;
195 int i, j;
196 long int start_ts, end_ts;
197
198 1 size_of_array = 0;
199 1 number_of_elements = 0;
200 1 crc_array = NULL;
201 1 pts_array = NULL;
202
203 1 result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL);
204
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (result < 0) {
205 av_log(NULL, AV_LOG_ERROR, "Can't open file\n");
206 return result;
207 }
208
209 1 result = avformat_find_stream_info(fmt_ctx, NULL);
210
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (result < 0) {
211 av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n");
212 goto end;
213 }
214
215 1 start_ts = read_seek_range(start);
216 1 end_ts = read_seek_range(end);
217
2/4
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 1 times.
1 if ((start_ts < 0) || (end_ts < 0)) {
218 result = -1;
219 goto end;
220 }
221
222 //TODO: add ability to work with audio format
223 1 video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
224
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (video_stream < 0) {
225 av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n");
226 result = video_stream;
227 goto end;
228 }
229
230 1 origin_par = fmt_ctx->streams[video_stream]->codecpar;
231
232 1 codec = avcodec_find_decoder(origin_par->codec_id);
233
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (!codec) {
234 av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n");
235 result = AVERROR_DECODER_NOT_FOUND;
236 goto end;
237 }
238
239 1 ctx = avcodec_alloc_context3(codec);
240
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (!ctx) {
241 av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n");
242 result = AVERROR(ENOMEM);
243 goto end;
244 }
245
246 1 result = avcodec_parameters_to_context(ctx, origin_par);
247
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (result) {
248 av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n");
249 goto end;
250 }
251
252 1 result = avcodec_open2(ctx, codec, NULL);
253
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (result < 0) {
254 av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n");
255 goto end;
256 }
257
258 1 fr = av_frame_alloc();
259
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (!fr) {
260 av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n");
261 result = AVERROR(ENOMEM);
262 goto end;
263 }
264
265 1 pkt = av_packet_alloc();
266
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (!pkt) {
267 av_log(NULL, AV_LOG_ERROR, "Cannot allocate packet\n");
268 result = AVERROR(ENOMEM);
269 goto end;
270 }
271
272 1 result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, pkt, fr, 0, 0, 1);
273
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (result != 0)
274 goto end;
275
276
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 1 times.
9 for (i = start_ts; i < end_ts; i += 100) {
277
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 8 times.
36 for (j = i + 100; j < end_ts; j += 100) {
278 28 result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, pkt, fr, i, j, 0);
279
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28 times.
28 if (result != 0)
280 break;
281 }
282 }
283
284 1 end:
285 1 av_freep(&crc_array);
286 1 av_freep(&pts_array);
287 1 av_packet_free(&pkt);
288 1 av_frame_free(&fr);
289 1 avformat_close_input(&fmt_ctx);
290 1 avcodec_free_context(&ctx);
291 1 return result;
292 }
293
294 1 int main(int argc, char **argv)
295 {
296
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
1 if (argc < 4) {
297 av_log(NULL, AV_LOG_ERROR, "Incorrect input\n");
298 return 1;
299 }
300
301
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
1 if (seek_test(argv[1], argv[2], argv[3]) != 0)
302 return 1;
303
304 1 return 0;
305 }
306