Error on missing function prototypes with gcc
[libav.git] / ffprobe.c
1 /*
2 * FFprobe : Simple Media Prober based on the FFmpeg libraries
3 * Copyright (c) 2007-2010 Stefano Sabatini
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 #include "config.h"
23
24 #include "libavformat/avformat.h"
25 #include "libavcodec/avcodec.h"
26 #include "libavcodec/opt.h"
27 #include "libavutil/pixdesc.h"
28 #include "libavdevice/avdevice.h"
29 #include "cmdutils.h"
30
31 const char program_name[] = "FFprobe";
32 const int program_birth_year = 2007;
33
34 static int do_show_format = 0;
35 static int do_show_streams = 0;
36
37 static int show_value_unit = 0;
38 static int use_value_prefix = 0;
39 static int use_byte_value_binary_prefix = 0;
40 static int use_value_sexagesimal_format = 0;
41
42 /* globals */
43 static const OptionDef options[];
44
45 /* FFprobe context */
46 static const char *input_filename;
47 static AVInputFormat *iformat = NULL;
48
49 static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
50 static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" };
51
52 static const char *unit_second_str = "s" ;
53 static const char *unit_hertz_str = "Hz" ;
54 static const char *unit_byte_str = "byte" ;
55 static const char *unit_bit_per_second_str = "bit/s";
56
57 static char *value_string(char *buf, int buf_size, double val, const char *unit)
58 {
59 if (unit == unit_second_str && use_value_sexagesimal_format) {
60 double secs;
61 int hours, mins;
62 secs = val;
63 mins = (int)secs / 60;
64 secs = secs - mins * 60;
65 hours = mins / 60;
66 mins %= 60;
67 snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
68 } else if (use_value_prefix) {
69 const char *prefix_string;
70 int index;
71
72 if (unit == unit_byte_str && use_byte_value_binary_prefix) {
73 index = (int) (log(val)/log(2)) / 10;
74 index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1);
75 val /= pow(2, index*10);
76 prefix_string = binary_unit_prefixes[index];
77 } else {
78 index = (int) (log10(val)) / 3;
79 index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1);
80 val /= pow(10, index*3);
81 prefix_string = decimal_unit_prefixes[index];
82 }
83
84 snprintf(buf, buf_size, "%.3f %s%s", val, prefix_string, show_value_unit ? unit : "");
85 } else {
86 snprintf(buf, buf_size, "%f %s", val, show_value_unit ? unit : "");
87 }
88
89 return buf;
90 }
91
92 static char *time_value_string(char *buf, int buf_size, int64_t val, const AVRational *time_base)
93 {
94 if (val == AV_NOPTS_VALUE) {
95 snprintf(buf, buf_size, "N/A");
96 } else {
97 value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str);
98 }
99
100 return buf;
101 }
102
103 static const char *codec_type_string(enum CodecType codec_type)
104 {
105 switch (codec_type) {
106 case CODEC_TYPE_VIDEO: return "video";
107 case CODEC_TYPE_AUDIO: return "audio";
108 case CODEC_TYPE_DATA: return "data";
109 case CODEC_TYPE_SUBTITLE: return "subtitle";
110 case CODEC_TYPE_ATTACHMENT: return "attachment";
111 default: return "unknown";
112 }
113 }
114
115 static void show_stream(AVFormatContext *fmt_ctx, int stream_idx)
116 {
117 AVStream *stream = fmt_ctx->streams[stream_idx];
118 AVCodecContext *dec_ctx;
119 AVCodec *dec;
120 char val_str[128];
121 AVMetadataTag *tag;
122 char a, b, c, d;
123
124 printf("[STREAM]\n");
125
126 printf("index=%d\n", stream->index);
127
128 if ((dec_ctx = stream->codec)) {
129 if ((dec = dec_ctx->codec)) {
130 printf("codec_name=%s\n", dec->name);
131 printf("codec_long_name=%s\n", dec->long_name);
132 } else {
133 printf("codec_name=unknown\n");
134 }
135
136 printf("codec_type=%s\n", codec_type_string(dec_ctx->codec_type));
137 printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den);
138
139 /* print AVI/FourCC tag */
140 a = dec_ctx->codec_tag & 0xff;
141 b = dec_ctx->codec_tag>>8 & 0xff;
142 c = dec_ctx->codec_tag>>16 & 0xff;
143 d = dec_ctx->codec_tag>>24 & 0xff;
144 printf("codec_tag_string=");
145 if (isprint(a)) printf("%c", a); else printf("[%d]", a);
146 if (isprint(b)) printf("%c", b); else printf("[%d]", b);
147 if (isprint(c)) printf("%c", c); else printf("[%d]", c);
148 if (isprint(d)) printf("%c", d); else printf("[%d]", d);
149 printf("\ncodec_tag=0x%04x\n", dec_ctx->codec_tag);
150
151 switch (dec_ctx->codec_type) {
152 case CODEC_TYPE_VIDEO:
153 printf("width=%d\n", dec_ctx->width);
154 printf("height=%d\n", dec_ctx->height);
155 printf("has_b_frames=%d\n", dec_ctx->has_b_frames);
156 printf("sample_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num,
157 dec_ctx->sample_aspect_ratio.den);
158 printf("display_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num,
159 dec_ctx->sample_aspect_ratio.den);
160 printf("pix_fmt=%s\n", dec_ctx->pix_fmt != PIX_FMT_NONE ?
161 av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
162 break;
163
164 case CODEC_TYPE_AUDIO:
165 printf("sample_rate=%s\n", value_string(val_str, sizeof(val_str),
166 dec_ctx->sample_rate,
167 unit_hertz_str));
168 printf("channels=%d\n", dec_ctx->channels);
169 printf("bits_per_sample=%d\n", av_get_bits_per_sample(dec_ctx->codec_id));
170 break;
171 }
172 } else {
173 printf("codec_type=unknown\n");
174 }
175
176 if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS)
177 printf("id=0x%x\n", stream->id);
178 printf("r_frame_rate=%d/%d\n", stream->r_frame_rate.num, stream->r_frame_rate.den);
179 printf("avg_frame_rate=%d/%d\n", stream->avg_frame_rate.num, stream->avg_frame_rate.den);
180 printf("time_base=%d/%d\n", stream->time_base.num, stream->time_base.den);
181 if (stream->language[0])
182 printf("language=%s\n", stream->language);
183 printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), stream->start_time,
184 &stream->time_base));
185 printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), stream->duration,
186 &stream->time_base));
187
188 while ((tag = av_metadata_get(stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
189 printf("TAG:%s=%s\n", tag->key, tag->value);
190
191 printf("[/STREAM]\n");
192 }
193
194 static void show_format(AVFormatContext *fmt_ctx)
195 {
196 AVMetadataTag *tag = NULL;
197 char val_str[128];
198
199 printf("[FORMAT]\n");
200
201 printf("filename=%s\n", fmt_ctx->filename);
202 printf("nb_streams=%d\n", fmt_ctx->nb_streams);
203 printf("format_name=%s\n", fmt_ctx->iformat->name);
204 printf("format_long_name=%s\n", fmt_ctx->iformat->long_name);
205 printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time,
206 &AV_TIME_BASE_Q));
207 printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration,
208 &AV_TIME_BASE_Q));
209 printf("size=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->file_size,
210 unit_byte_str));
211 printf("bit_rate=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate,
212 unit_bit_per_second_str));
213
214 while ((tag = av_metadata_get(fmt_ctx->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
215 printf("TAG:%s=%s\n", tag->key, tag->value);
216
217 printf("[/FORMAT]\n");
218 }
219
220 static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
221 {
222 int err, i;
223 AVFormatContext *fmt_ctx;
224
225 fmt_ctx = avformat_alloc_context();
226
227 if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, NULL)) < 0) {
228 print_error(filename, err);
229 return err;
230 }
231
232 /* fill the streams in the format context */
233 if ((err = av_find_stream_info(fmt_ctx)) < 0) {
234 print_error(filename, err);
235 return err;
236 }
237
238 dump_format(fmt_ctx, 0, filename, 0);
239
240 /* bind a decoder to each input stream */
241 for (i = 0; i < fmt_ctx->nb_streams; i++) {
242 AVStream *stream = fmt_ctx->streams[i];
243 AVCodec *codec;
244
245 if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
246 fprintf(stderr, "Unsupported codec (id=%d) for input stream %d\n",
247 stream->codec->codec_id, stream->index);
248 } else if (avcodec_open(stream->codec, codec) < 0) {
249 fprintf(stderr, "Error while opening codec for input stream %d\n",
250 stream->index);
251 }
252 }
253
254 *fmt_ctx_ptr = fmt_ctx;
255 return 0;
256 }
257
258 static int probe_file(const char *filename)
259 {
260 AVFormatContext *fmt_ctx;
261 int ret, i;
262
263 if ((ret = open_input_file(&fmt_ctx, filename)))
264 return ret;
265
266 if (do_show_streams)
267 for (i = 0; i < fmt_ctx->nb_streams; i++)
268 show_stream(fmt_ctx, i);
269
270 if (do_show_format)
271 show_format(fmt_ctx);
272
273 av_close_input_file(fmt_ctx);
274 return 0;
275 }
276
277 static void show_usage(void)
278 {
279 printf("Simple multimedia streams analyzer\n");
280 printf("usage: ffprobe [OPTIONS] [INPUT_FILE]\n");
281 printf("\n");
282 }
283
284 static void opt_format(const char *arg)
285 {
286 iformat = av_find_input_format(arg);
287 if (!iformat) {
288 fprintf(stderr, "Unknown input format: %s\n", arg);
289 exit(1);
290 }
291 }
292
293 static void opt_input_file(const char *arg)
294 {
295 if (input_filename) {
296 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
297 arg, input_filename);
298 exit(1);
299 }
300 if (!strcmp(arg, "-"))
301 arg = "pipe:";
302 input_filename = arg;
303 }
304
305 static void show_help(void)
306 {
307 show_usage();
308 show_help_options(options, "Main options:\n", 0, 0);
309 printf("\n");
310 }
311
312 static void opt_pretty(void)
313 {
314 show_value_unit = 1;
315 use_value_prefix = 1;
316 use_byte_value_binary_prefix = 1;
317 use_value_sexagesimal_format = 1;
318 }
319
320 static const OptionDef options[] = {
321 #include "cmdutils_common_opts.h"
322 { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" },
323 { "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" },
324 { "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" },
325 { "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix},
326 "use binary prefixes for byte units" },
327 { "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format},
328 "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
329 { "pretty", 0, {(void*)&opt_pretty},
330 "prettify the format of displayed values, make it more human readable" },
331 { "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" },
332 { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },
333 { NULL, },
334 };
335
336 int main(int argc, char **argv)
337 {
338 av_register_all();
339 #if CONFIG_AVDEVICE
340 avdevice_register_all();
341 #endif
342
343 show_banner();
344 parse_options(argc, argv, options, opt_input_file);
345
346 if (!input_filename) {
347 show_usage();
348 fprintf(stderr, "You have to specify one input file.\n");
349 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffprobe'.\n");
350 exit(1);
351 }
352
353 return probe_file(input_filename);
354 }