Make ffprobe show sample_aspect_ratio and display_aspect_ratio only if
[libav.git] / ffprobe.c
CommitLineData
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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
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22#include "config.h"
23
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24#include "libavformat/avformat.h"
25#include "libavcodec/avcodec.h"
26#include "libavcodec/opt.h"
27#include "libavutil/pixdesc.h"
6ce98ea4 28#include "libavdevice/avdevice.h"
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29#include "cmdutils.h"
30
31const char program_name[] = "FFprobe";
32const int program_birth_year = 2007;
33
34static int do_show_format = 0;
35static int do_show_streams = 0;
36
4bfe67da 37static int convert_tags = 0;
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38static int show_value_unit = 0;
39static int use_value_prefix = 0;
40static int use_byte_value_binary_prefix = 0;
41static int use_value_sexagesimal_format = 0;
42
43/* globals */
44static const OptionDef options[];
45
46/* FFprobe context */
47static const char *input_filename;
1be784a2 48static AVInputFormat *iformat = NULL;
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49
50static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
51static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" };
52
53static const char *unit_second_str = "s" ;
54static const char *unit_hertz_str = "Hz" ;
55static const char *unit_byte_str = "byte" ;
56static const char *unit_bit_per_second_str = "bit/s";
57
58static char *value_string(char *buf, int buf_size, double val, const char *unit)
59{
60 if (unit == unit_second_str && use_value_sexagesimal_format) {
61 double secs;
62 int hours, mins;
63 secs = val;
64 mins = (int)secs / 60;
65 secs = secs - mins * 60;
66 hours = mins / 60;
67 mins %= 60;
68 snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
69 } else if (use_value_prefix) {
70 const char *prefix_string;
71 int index;
72
73 if (unit == unit_byte_str && use_byte_value_binary_prefix) {
f1b267dd 74 index = (int) (log(val)/log(2)) / 10;
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75 index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1);
76 val /= pow(2, index*10);
77 prefix_string = binary_unit_prefixes[index];
78 } else {
79 index = (int) (log10(val)) / 3;
80 index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1);
81 val /= pow(10, index*3);
82 prefix_string = decimal_unit_prefixes[index];
83 }
84
85 snprintf(buf, buf_size, "%.3f %s%s", val, prefix_string, show_value_unit ? unit : "");
86 } else {
87 snprintf(buf, buf_size, "%f %s", val, show_value_unit ? unit : "");
88 }
89
90 return buf;
91}
92
93static char *time_value_string(char *buf, int buf_size, int64_t val, const AVRational *time_base)
94{
95 if (val == AV_NOPTS_VALUE) {
96 snprintf(buf, buf_size, "N/A");
97 } else {
98 value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str);
99 }
100
101 return buf;
102}
103
72415b2a 104static const char *media_type_string(enum AVMediaType media_type)
336ce917 105{
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106 switch (media_type) {
107 case AVMEDIA_TYPE_VIDEO: return "video";
108 case AVMEDIA_TYPE_AUDIO: return "audio";
109 case AVMEDIA_TYPE_DATA: return "data";
110 case AVMEDIA_TYPE_SUBTITLE: return "subtitle";
111 case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
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112 default: return "unknown";
113 }
114}
115
116static void show_stream(AVFormatContext *fmt_ctx, int stream_idx)
117{
118 AVStream *stream = fmt_ctx->streams[stream_idx];
119 AVCodecContext *dec_ctx;
120 AVCodec *dec;
121 char val_str[128];
efe8bb09 122 AVMetadataTag *tag = NULL;
336ce917 123 char a, b, c, d;
d21b2278 124 AVRational display_aspect_ratio;
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125
126 printf("[STREAM]\n");
127
128 printf("index=%d\n", stream->index);
129
130 if ((dec_ctx = stream->codec)) {
131 if ((dec = dec_ctx->codec)) {
132 printf("codec_name=%s\n", dec->name);
133 printf("codec_long_name=%s\n", dec->long_name);
134 } else {
135 printf("codec_name=unknown\n");
136 }
137
72415b2a 138 printf("codec_type=%s\n", media_type_string(dec_ctx->codec_type));
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139 printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den);
140
141 /* print AVI/FourCC tag */
142 a = dec_ctx->codec_tag & 0xff;
143 b = dec_ctx->codec_tag>>8 & 0xff;
144 c = dec_ctx->codec_tag>>16 & 0xff;
145 d = dec_ctx->codec_tag>>24 & 0xff;
146 printf("codec_tag_string=");
147 if (isprint(a)) printf("%c", a); else printf("[%d]", a);
148 if (isprint(b)) printf("%c", b); else printf("[%d]", b);
149 if (isprint(c)) printf("%c", c); else printf("[%d]", c);
150 if (isprint(d)) printf("%c", d); else printf("[%d]", d);
151 printf("\ncodec_tag=0x%04x\n", dec_ctx->codec_tag);
152
153 switch (dec_ctx->codec_type) {
72415b2a 154 case AVMEDIA_TYPE_VIDEO:
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155 printf("width=%d\n", dec_ctx->width);
156 printf("height=%d\n", dec_ctx->height);
157 printf("has_b_frames=%d\n", dec_ctx->has_b_frames);
8280e2bd 158 if (dec_ctx->sample_aspect_ratio.num) {
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159 printf("sample_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num,
160 dec_ctx->sample_aspect_ratio.den);
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161 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
162 dec_ctx->width*dec_ctx->sample_aspect_ratio.num,
163 dec_ctx->height*dec_ctx->sample_aspect_ratio.den,
164 1024*1024);
165 printf("display_aspect_ratio=%d:%d\n", display_aspect_ratio.num,
166 display_aspect_ratio.den);
8280e2bd 167 }
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168 printf("pix_fmt=%s\n", dec_ctx->pix_fmt != PIX_FMT_NONE ?
169 av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
170 break;
171
72415b2a 172 case AVMEDIA_TYPE_AUDIO:
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173 printf("sample_rate=%s\n", value_string(val_str, sizeof(val_str),
174 dec_ctx->sample_rate,
175 unit_hertz_str));
176 printf("channels=%d\n", dec_ctx->channels);
177 printf("bits_per_sample=%d\n", av_get_bits_per_sample(dec_ctx->codec_id));
178 break;
179 }
180 } else {
181 printf("codec_type=unknown\n");
182 }
183
184 if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS)
185 printf("id=0x%x\n", stream->id);
186 printf("r_frame_rate=%d/%d\n", stream->r_frame_rate.num, stream->r_frame_rate.den);
187 printf("avg_frame_rate=%d/%d\n", stream->avg_frame_rate.num, stream->avg_frame_rate.den);
188 printf("time_base=%d/%d\n", stream->time_base.num, stream->time_base.den);
189 if (stream->language[0])
190 printf("language=%s\n", stream->language);
191 printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), stream->start_time,
192 &stream->time_base));
193 printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), stream->duration,
194 &stream->time_base));
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195 if (stream->nb_frames)
196 printf("nb_frames=%"PRId64"\n", stream->nb_frames);
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197
198 while ((tag = av_metadata_get(stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
b6a41853 199 printf("TAG:%s=%s\n", tag->key, tag->value);
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200
201 printf("[/STREAM]\n");
202}
203
204static void show_format(AVFormatContext *fmt_ctx)
205{
206 AVMetadataTag *tag = NULL;
207 char val_str[128];
208
209 printf("[FORMAT]\n");
210
211 printf("filename=%s\n", fmt_ctx->filename);
212 printf("nb_streams=%d\n", fmt_ctx->nb_streams);
213 printf("format_name=%s\n", fmt_ctx->iformat->name);
214 printf("format_long_name=%s\n", fmt_ctx->iformat->long_name);
215 printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time,
216 &AV_TIME_BASE_Q));
217 printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration,
218 &AV_TIME_BASE_Q));
219 printf("size=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->file_size,
220 unit_byte_str));
221 printf("bit_rate=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate,
222 unit_bit_per_second_str));
223
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224 if (convert_tags)
225 av_metadata_conv(fmt_ctx, NULL, fmt_ctx->iformat->metadata_conv);
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226 while ((tag = av_metadata_get(fmt_ctx->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
227 printf("TAG:%s=%s\n", tag->key, tag->value);
228
229 printf("[/FORMAT]\n");
230}
231
232static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
233{
234 int err, i;
235 AVFormatContext *fmt_ctx;
236
237 fmt_ctx = avformat_alloc_context();
238
1be784a2 239 if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, NULL)) < 0) {
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240 print_error(filename, err);
241 return err;
242 }
243
244 /* fill the streams in the format context */
245 if ((err = av_find_stream_info(fmt_ctx)) < 0) {
246 print_error(filename, err);
247 return err;
248 }
249
250 dump_format(fmt_ctx, 0, filename, 0);
251
252 /* bind a decoder to each input stream */
253 for (i = 0; i < fmt_ctx->nb_streams; i++) {
254 AVStream *stream = fmt_ctx->streams[i];
255 AVCodec *codec;
256
257 if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
258 fprintf(stderr, "Unsupported codec (id=%d) for input stream %d\n",
259 stream->codec->codec_id, stream->index);
260 } else if (avcodec_open(stream->codec, codec) < 0) {
261 fprintf(stderr, "Error while opening codec for input stream %d\n",
262 stream->index);
263 }
264 }
265
266 *fmt_ctx_ptr = fmt_ctx;
267 return 0;
268}
269
270static int probe_file(const char *filename)
271{
272 AVFormatContext *fmt_ctx;
273 int ret, i;
274
275 if ((ret = open_input_file(&fmt_ctx, filename)))
276 return ret;
277
278 if (do_show_streams)
279 for (i = 0; i < fmt_ctx->nb_streams; i++)
280 show_stream(fmt_ctx, i);
281
282 if (do_show_format)
283 show_format(fmt_ctx);
284
285 av_close_input_file(fmt_ctx);
286 return 0;
287}
288
289static void show_usage(void)
290{
291 printf("Simple multimedia streams analyzer\n");
292 printf("usage: ffprobe [OPTIONS] [INPUT_FILE]\n");
293 printf("\n");
294}
295
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296static void opt_format(const char *arg)
297{
298 iformat = av_find_input_format(arg);
299 if (!iformat) {
300 fprintf(stderr, "Unknown input format: %s\n", arg);
301 exit(1);
302 }
303}
304
912dd63e 305static void opt_input_file(const char *arg)
336ce917 306{
c8c0ac6b 307 if (input_filename) {
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308 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
309 arg, input_filename);
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310 exit(1);
311 }
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312 if (!strcmp(arg, "-"))
313 arg = "pipe:";
314 input_filename = arg;
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315}
316
317static void show_help(void)
318{
319 show_usage();
320 show_help_options(options, "Main options:\n", 0, 0);
321 printf("\n");
322}
323
324static void opt_pretty(void)
325{
326 show_value_unit = 1;
327 use_value_prefix = 1;
328 use_byte_value_binary_prefix = 1;
329 use_value_sexagesimal_format = 1;
330}
331
332static const OptionDef options[] = {
333#include "cmdutils_common_opts.h"
4bfe67da 334 { "convert_tags", OPT_BOOL, {(void*)&convert_tags}, "convert tag names to the FFmpeg generic tag names" },
1be784a2 335 { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" },
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336 { "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" },
337 { "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" },
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338 { "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix},
339 "use binary prefixes for byte units" },
340 { "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format},
341 "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
342 { "pretty", 0, {(void*)&opt_pretty},
343 "prettify the format of displayed values, make it more human readable" },
344 { "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" },
818636ec 345 { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },
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346 { NULL, },
347};
348
349int main(int argc, char **argv)
350{
351 av_register_all();
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352#if CONFIG_AVDEVICE
353 avdevice_register_all();
354#endif
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355
356 show_banner();
357 parse_options(argc, argv, options, opt_input_file);
358
359 if (!input_filename) {
360 show_usage();
361 fprintf(stderr, "You have to specify one input file.\n");
362 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffprobe'.\n");
363 exit(1);
364 }
365
366 return probe_file(input_filename);
367}