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418 lines
15 KiB
418 lines
15 KiB
/* |
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* ffprobe : Simple Media Prober based on the Libav libraries |
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* Copyright (c) 2007-2010 Stefano Sabatini |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "config.h" |
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#include "libavformat/avformat.h" |
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#include "libavcodec/avcodec.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/dict.h" |
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#include "libavdevice/avdevice.h" |
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#include "cmdutils.h" |
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const char program_name[] = "ffprobe"; |
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const int program_birth_year = 2007; |
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static int do_show_format = 0; |
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static int do_show_packets = 0; |
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static int do_show_streams = 0; |
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static int show_value_unit = 0; |
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static int use_value_prefix = 0; |
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static int use_byte_value_binary_prefix = 0; |
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static int use_value_sexagesimal_format = 0; |
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/* globals */ |
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static const OptionDef options[]; |
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/* FFprobe context */ |
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static const char *input_filename; |
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static AVInputFormat *iformat = NULL; |
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static const char *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" }; |
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static const char *decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" }; |
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static const char *unit_second_str = "s" ; |
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static const char *unit_hertz_str = "Hz" ; |
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static const char *unit_byte_str = "byte" ; |
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static const char *unit_bit_per_second_str = "bit/s"; |
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static char *value_string(char *buf, int buf_size, double val, const char *unit) |
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{ |
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if (unit == unit_second_str && use_value_sexagesimal_format) { |
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double secs; |
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int hours, mins; |
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secs = val; |
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mins = (int)secs / 60; |
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secs = secs - mins * 60; |
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hours = mins / 60; |
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mins %= 60; |
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snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs); |
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} else if (use_value_prefix) { |
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const char *prefix_string; |
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int index; |
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if (unit == unit_byte_str && use_byte_value_binary_prefix) { |
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index = (int) (log(val)/log(2)) / 10; |
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index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) -1); |
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val /= pow(2, index*10); |
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prefix_string = binary_unit_prefixes[index]; |
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} else { |
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index = (int) (log10(val)) / 3; |
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index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) -1); |
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val /= pow(10, index*3); |
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prefix_string = decimal_unit_prefixes[index]; |
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} |
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snprintf(buf, buf_size, "%.3f %s%s", val, prefix_string, show_value_unit ? unit : ""); |
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} else { |
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snprintf(buf, buf_size, "%f %s", val, show_value_unit ? unit : ""); |
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} |
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return buf; |
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} |
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static char *time_value_string(char *buf, int buf_size, int64_t val, const AVRational *time_base) |
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{ |
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if (val == AV_NOPTS_VALUE) { |
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snprintf(buf, buf_size, "N/A"); |
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} else { |
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value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str); |
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} |
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return buf; |
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} |
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static char *ts_value_string (char *buf, int buf_size, int64_t ts) |
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{ |
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if (ts == AV_NOPTS_VALUE) { |
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snprintf(buf, buf_size, "N/A"); |
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} else { |
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snprintf(buf, buf_size, "%"PRId64, ts); |
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} |
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return buf; |
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} |
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static const char *media_type_string(enum AVMediaType media_type) |
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{ |
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switch (media_type) { |
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case AVMEDIA_TYPE_VIDEO: return "video"; |
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case AVMEDIA_TYPE_AUDIO: return "audio"; |
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case AVMEDIA_TYPE_DATA: return "data"; |
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case AVMEDIA_TYPE_SUBTITLE: return "subtitle"; |
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case AVMEDIA_TYPE_ATTACHMENT: return "attachment"; |
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default: return "unknown"; |
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} |
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} |
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static void show_packet(AVFormatContext *fmt_ctx, AVPacket *pkt) |
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{ |
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char val_str[128]; |
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AVStream *st = fmt_ctx->streams[pkt->stream_index]; |
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printf("[PACKET]\n"); |
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printf("codec_type=%s\n" , media_type_string(st->codec->codec_type)); |
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printf("stream_index=%d\n" , pkt->stream_index); |
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printf("pts=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->pts)); |
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printf("pts_time=%s\n" , time_value_string(val_str, sizeof(val_str), pkt->pts, &st->time_base)); |
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printf("dts=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->dts)); |
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printf("dts_time=%s\n" , time_value_string(val_str, sizeof(val_str), pkt->dts, &st->time_base)); |
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printf("duration=%s\n" , ts_value_string (val_str, sizeof(val_str), pkt->duration)); |
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printf("duration_time=%s\n", time_value_string(val_str, sizeof(val_str), pkt->duration, &st->time_base)); |
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printf("size=%s\n" , value_string (val_str, sizeof(val_str), pkt->size, unit_byte_str)); |
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printf("pos=%"PRId64"\n" , pkt->pos); |
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printf("flags=%c\n" , pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_'); |
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printf("[/PACKET]\n"); |
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} |
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static void show_packets(AVFormatContext *fmt_ctx) |
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{ |
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AVPacket pkt; |
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av_init_packet(&pkt); |
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while (!av_read_frame(fmt_ctx, &pkt)) |
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show_packet(fmt_ctx, &pkt); |
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} |
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static void show_stream(AVFormatContext *fmt_ctx, int stream_idx) |
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{ |
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AVStream *stream = fmt_ctx->streams[stream_idx]; |
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AVCodecContext *dec_ctx; |
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AVCodec *dec; |
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char val_str[128]; |
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AVDictionaryEntry *tag = NULL; |
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AVRational display_aspect_ratio; |
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printf("[STREAM]\n"); |
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printf("index=%d\n", stream->index); |
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if ((dec_ctx = stream->codec)) { |
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if ((dec = dec_ctx->codec)) { |
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printf("codec_name=%s\n", dec->name); |
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printf("codec_long_name=%s\n", dec->long_name); |
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} else { |
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printf("codec_name=unknown\n"); |
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} |
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printf("codec_type=%s\n", media_type_string(dec_ctx->codec_type)); |
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printf("codec_time_base=%d/%d\n", dec_ctx->time_base.num, dec_ctx->time_base.den); |
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/* print AVI/FourCC tag */ |
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av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag); |
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printf("codec_tag_string=%s\n", val_str); |
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printf("codec_tag=0x%04x\n", dec_ctx->codec_tag); |
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switch (dec_ctx->codec_type) { |
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case AVMEDIA_TYPE_VIDEO: |
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printf("width=%d\n", dec_ctx->width); |
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printf("height=%d\n", dec_ctx->height); |
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printf("has_b_frames=%d\n", dec_ctx->has_b_frames); |
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if (dec_ctx->sample_aspect_ratio.num) { |
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printf("sample_aspect_ratio=%d:%d\n", dec_ctx->sample_aspect_ratio.num, |
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dec_ctx->sample_aspect_ratio.den); |
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av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, |
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dec_ctx->width * dec_ctx->sample_aspect_ratio.num, |
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dec_ctx->height * dec_ctx->sample_aspect_ratio.den, |
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1024*1024); |
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printf("display_aspect_ratio=%d:%d\n", display_aspect_ratio.num, |
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display_aspect_ratio.den); |
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} |
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printf("pix_fmt=%s\n", dec_ctx->pix_fmt != PIX_FMT_NONE ? |
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av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown"); |
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break; |
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case AVMEDIA_TYPE_AUDIO: |
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printf("sample_rate=%s\n", value_string(val_str, sizeof(val_str), |
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dec_ctx->sample_rate, |
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unit_hertz_str)); |
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printf("channels=%d\n", dec_ctx->channels); |
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printf("bits_per_sample=%d\n", av_get_bits_per_sample(dec_ctx->codec_id)); |
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break; |
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} |
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} else { |
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printf("codec_type=unknown\n"); |
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} |
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if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) |
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printf("id=0x%x\n", stream->id); |
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printf("r_frame_rate=%d/%d\n", stream->r_frame_rate.num, stream->r_frame_rate.den); |
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printf("avg_frame_rate=%d/%d\n", stream->avg_frame_rate.num, stream->avg_frame_rate.den); |
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printf("time_base=%d/%d\n", stream->time_base.num, stream->time_base.den); |
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printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), stream->start_time, |
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&stream->time_base)); |
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printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), stream->duration, |
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&stream->time_base)); |
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if (stream->nb_frames) |
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printf("nb_frames=%"PRId64"\n", stream->nb_frames); |
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while ((tag = av_dict_get(stream->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) |
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printf("TAG:%s=%s\n", tag->key, tag->value); |
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printf("[/STREAM]\n"); |
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} |
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static void show_format(AVFormatContext *fmt_ctx) |
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{ |
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AVDictionaryEntry *tag = NULL; |
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char val_str[128]; |
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printf("[FORMAT]\n"); |
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printf("filename=%s\n", fmt_ctx->filename); |
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printf("nb_streams=%d\n", fmt_ctx->nb_streams); |
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printf("format_name=%s\n", fmt_ctx->iformat->name); |
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printf("format_long_name=%s\n", fmt_ctx->iformat->long_name); |
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printf("start_time=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->start_time, |
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&AV_TIME_BASE_Q)); |
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printf("duration=%s\n", time_value_string(val_str, sizeof(val_str), fmt_ctx->duration, |
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&AV_TIME_BASE_Q)); |
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printf("size=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->file_size, |
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unit_byte_str)); |
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printf("bit_rate=%s\n", value_string(val_str, sizeof(val_str), fmt_ctx->bit_rate, |
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unit_bit_per_second_str)); |
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while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) |
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printf("TAG:%s=%s\n", tag->key, tag->value); |
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printf("[/FORMAT]\n"); |
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} |
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static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename) |
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{ |
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int err, i; |
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AVFormatContext *fmt_ctx = NULL; |
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AVDictionaryEntry *t; |
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if ((err = avformat_open_input(&fmt_ctx, filename, iformat, &format_opts)) < 0) { |
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print_error(filename, err); |
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return err; |
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} |
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if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { |
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av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); |
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return AVERROR_OPTION_NOT_FOUND; |
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} |
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/* fill the streams in the format context */ |
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if ((err = av_find_stream_info(fmt_ctx)) < 0) { |
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print_error(filename, err); |
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return err; |
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} |
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av_dump_format(fmt_ctx, 0, filename, 0); |
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/* bind a decoder to each input stream */ |
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for (i = 0; i < fmt_ctx->nb_streams; i++) { |
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AVStream *stream = fmt_ctx->streams[i]; |
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AVCodec *codec; |
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if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) { |
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fprintf(stderr, "Unsupported codec with id %d for input stream %d\n", |
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stream->codec->codec_id, stream->index); |
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} else if (avcodec_open2(stream->codec, codec, NULL) < 0) { |
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fprintf(stderr, "Error while opening codec for input stream %d\n", |
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stream->index); |
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} |
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} |
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*fmt_ctx_ptr = fmt_ctx; |
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return 0; |
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} |
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static int probe_file(const char *filename) |
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{ |
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AVFormatContext *fmt_ctx; |
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int ret, i; |
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if ((ret = open_input_file(&fmt_ctx, filename))) |
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return ret; |
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if (do_show_packets) |
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show_packets(fmt_ctx); |
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if (do_show_streams) |
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for (i = 0; i < fmt_ctx->nb_streams; i++) |
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show_stream(fmt_ctx, i); |
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if (do_show_format) |
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show_format(fmt_ctx); |
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av_close_input_file(fmt_ctx); |
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return 0; |
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} |
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static void show_usage(void) |
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{ |
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printf("Simple multimedia streams analyzer\n"); |
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printf("usage: ffprobe [OPTIONS] [INPUT_FILE]\n"); |
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printf("\n"); |
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} |
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static int opt_format(const char *opt, const char *arg) |
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{ |
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iformat = av_find_input_format(arg); |
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if (!iformat) { |
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fprintf(stderr, "Unknown input format: %s\n", arg); |
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return AVERROR(EINVAL); |
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} |
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return 0; |
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} |
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static void opt_input_file(const char *arg) |
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{ |
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if (input_filename) { |
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fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n", |
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arg, input_filename); |
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exit(1); |
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} |
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if (!strcmp(arg, "-")) |
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arg = "pipe:"; |
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input_filename = arg; |
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} |
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static void show_help(void) |
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{ |
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av_log_set_callback(log_callback_help); |
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show_usage(); |
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show_help_options(options, "Main options:\n", 0, 0); |
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printf("\n"); |
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av_opt_show2(avformat_opts, NULL, |
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AV_OPT_FLAG_DECODING_PARAM, 0); |
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} |
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static void opt_pretty(void) |
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{ |
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show_value_unit = 1; |
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use_value_prefix = 1; |
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use_byte_value_binary_prefix = 1; |
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use_value_sexagesimal_format = 1; |
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} |
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static const OptionDef options[] = { |
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#include "cmdutils_common_opts.h" |
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{ "f", HAS_ARG, {(void*)opt_format}, "force format", "format" }, |
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{ "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" }, |
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{ "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" }, |
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{ "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix}, |
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"use binary prefixes for byte units" }, |
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{ "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format}, |
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"use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" }, |
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{ "pretty", 0, {(void*)&opt_pretty}, |
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"prettify the format of displayed values, make it more human readable" }, |
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{ "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" }, |
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{ "show_packets", OPT_BOOL, {(void*)&do_show_packets}, "show packets info" }, |
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{ "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" }, |
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{ "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" }, |
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{ NULL, }, |
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}; |
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int main(int argc, char **argv) |
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{ |
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int ret; |
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av_register_all(); |
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init_opts(); |
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#if CONFIG_AVDEVICE |
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avdevice_register_all(); |
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#endif |
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avformat_opts = avformat_alloc_context(); |
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show_banner(); |
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parse_options(argc, argv, options, opt_input_file); |
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if (!input_filename) { |
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show_usage(); |
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fprintf(stderr, "You have to specify one input file.\n"); |
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fprintf(stderr, "Use -h to get full help or, even better, run 'man ffprobe'.\n"); |
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exit(1); |
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} |
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ret = probe_file(input_filename); |
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av_free(avformat_opts); |
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return ret; |
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}
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