2 * Copyright © 2010 Mozilla Foundation
4 * This program is made available under an ISC-style license. See the
5 * accompanying file LICENSE for details.
12 #include "nestegg/nestegg.h"
18 stdio_read(void * p, size_t length, void * file)
23 r = fread(p, length, 1, fp);
24 if (r == 0 && feof(fp))
26 return r == 0 ? -1 : 1;
30 stdio_seek(int64_t offset, int whence, void * file)
33 return fseek(fp, offset, whence);
43 log_callback(nestegg * ctx, unsigned int severity, char const * fmt, ...)
46 char const * sev = NULL;
49 if (severity < NESTEGG_LOG_WARNING)
54 case NESTEGG_LOG_DEBUG:
57 case NESTEGG_LOG_WARNING:
60 case NESTEGG_LOG_CRITICAL:
67 fprintf(stderr, "%p %s ", (void *) ctx, sev);
70 vfprintf(stderr, fmt, ap);
73 fprintf(stderr, "\n");
77 main(int argc, char * argv[])
82 nestegg_audio_params aparams;
84 nestegg_video_params vparams;
86 uint64_t duration, tstamp, pkt_tstamp;
87 unsigned char * codec_data, * ptr;
88 unsigned int cnt, i, j, track, tracks, pkt_cnt, pkt_track;
89 unsigned int data_items = 0;
100 fp = fopen(argv[1], "rb");
107 r = nestegg_init(&ctx, io, log_callback, -1);
111 nestegg_track_count(ctx, &tracks);
112 nestegg_duration(ctx, &duration);
114 fprintf(stderr, "media has %u tracks and duration %fs\n", tracks, duration / 1e9);
117 for (i = 0; i < tracks; ++i) {
118 type = nestegg_track_type(ctx, i);
120 fprintf(stderr, "track %u: type: %d codec: %d", i,
121 type, nestegg_track_codec_id(ctx, i));
123 nestegg_track_codec_data_count(ctx, i, &data_items);
124 for (j = 0; j < data_items; ++j) {
125 nestegg_track_codec_data(ctx, i, j, &codec_data, &length);
127 fprintf(stderr, " (%p, %u)", codec_data, (unsigned int) length);
130 if (type == NESTEGG_TRACK_VIDEO) {
131 nestegg_track_video_params(ctx, i, &vparams);
133 fprintf(stderr, " video: %ux%u (d: %ux%u %ux%ux%ux%u)",
134 vparams.width, vparams.height,
135 vparams.display_width, vparams.display_height,
136 vparams.crop_top, vparams.crop_left, vparams.crop_bottom, vparams.crop_right);
138 } else if (type == NESTEGG_TRACK_AUDIO) {
139 nestegg_track_audio_params(ctx, i, &aparams);
141 fprintf(stderr, " audio: %.2fhz %u bit %u channels",
142 aparams.rate, aparams.depth, aparams.channels);
146 fprintf(stderr, "\n");
150 #if defined(SEEK_TEST)
152 fprintf(stderr, "seek to middle\n");
154 r = nestegg_track_seek(ctx, 0, duration / 2);
157 fprintf(stderr, "middle ");
159 r = nestegg_read_packet(ctx, &pkt);
161 nestegg_packet_track(pkt, &track);
162 nestegg_packet_count(pkt, &cnt);
163 nestegg_packet_tstamp(pkt, &tstamp);
165 fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
167 nestegg_free_packet(pkt);
170 fprintf(stderr, "middle seek failed\n");
176 fprintf(stderr, "seek to ~end\n");
178 r = nestegg_track_seek(ctx, 0, duration - (duration / 10));
181 fprintf(stderr, "end ");
183 r = nestegg_read_packet(ctx, &pkt);
185 nestegg_packet_track(pkt, &track);
186 nestegg_packet_count(pkt, &cnt);
187 nestegg_packet_tstamp(pkt, &tstamp);
189 fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
191 nestegg_free_packet(pkt);
194 fprintf(stderr, "end seek failed\n");
200 fprintf(stderr, "seek to ~start\n");
202 r = nestegg_track_seek(ctx, 0, duration / 10);
205 fprintf(stderr, "start ");
207 r = nestegg_read_packet(ctx, &pkt);
209 nestegg_packet_track(pkt, &track);
210 nestegg_packet_count(pkt, &cnt);
211 nestegg_packet_tstamp(pkt, &tstamp);
213 fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
215 nestegg_free_packet(pkt);
218 fprintf(stderr, "start seek failed\n");
224 while (nestegg_read_packet(ctx, &pkt) > 0) {
225 nestegg_packet_track(pkt, &pkt_track);
226 nestegg_packet_count(pkt, &pkt_cnt);
227 nestegg_packet_tstamp(pkt, &pkt_tstamp);
230 fprintf(stderr, "t %u pts %f frames %u: ", pkt_track, pkt_tstamp / 1e9, pkt_cnt);
233 for (i = 0; i < pkt_cnt; ++i) {
234 nestegg_packet_data(pkt, i, &ptr, &size);
236 fprintf(stderr, "%u ", (unsigned int) size);
240 fprintf(stderr, "\n");
243 nestegg_free_packet(pkt);
246 nestegg_destroy(ctx);