mirror of
https://github.com/FFmpeg/FFmpeg.git
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2bc70a7681
This makes the output nicely aligned even in for those cases, and might also avoid some issues with printf implementations that can not handle well very large float values (e.g. msvcrt without MinGW wrapper IIRC). Originally committed as revision 20334 to svn://svn.ffmpeg.org/ffmpeg/trunk
137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2007 Michael Niedermayer
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "libavutil/common.h"
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#include "libavformat/avformat.h"
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#undef exit
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#undef printf
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#undef fprintf
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static char buffer[20];
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static const char *ret_str(int v)
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{
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switch (v) {
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case AVERROR_EOF: return "-EOF";
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case AVERROR(EIO): return "-EIO";
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case AVERROR(ENOMEM): return "-ENOMEM";
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case AVERROR(EINVAL): return "-EINVAL";
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default:
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snprintf(buffer, sizeof(buffer), "%2d", v);
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return buffer;
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}
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}
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static void ts_str(char buffer[60], int64_t ts, AVRational base)
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{
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double tsval;
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if (ts == AV_NOPTS_VALUE) {
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strcpy(buffer, " NOPTS ");
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return;
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}
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tsval = ts * av_q2d(base);
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snprintf(buffer, 60, "%9f", tsval);
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}
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int main(int argc, char **argv)
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{
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const char *filename;
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AVFormatContext *ic;
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int i, ret, stream_id;
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int64_t timestamp;
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AVFormatParameters params, *ap= ¶ms;
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memset(ap, 0, sizeof(params));
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ap->channels=1;
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ap->sample_rate= 22050;
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/* initialize libavcodec, and register all codecs and formats */
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av_register_all();
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if (argc != 2) {
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printf("usage: %s input_file\n"
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"\n", argv[0]);
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exit(1);
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}
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filename = argv[1];
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/* allocate the media context */
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ic = avformat_alloc_context();
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if (!ic) {
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fprintf(stderr, "Memory error\n");
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exit(1);
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}
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ret = av_open_input_file(&ic, filename, NULL, 0, ap);
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if (ret < 0) {
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fprintf(stderr, "cannot open %s\n", filename);
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exit(1);
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}
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ret = av_find_stream_info(ic);
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if (ret < 0) {
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fprintf(stderr, "%s: could not find codec parameters\n", filename);
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exit(1);
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}
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for(i=0; ; i++){
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AVPacket pkt;
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AVStream *av_uninit(st);
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char ts_buf[60];
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memset(&pkt, 0, sizeof(pkt));
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if(ret>=0){
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ret= av_read_frame(ic, &pkt);
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if(ret>=0){
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char dts_buf[60];
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st= ic->streams[pkt.stream_index];
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ts_str(dts_buf, pkt.dts, st->time_base);
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ts_str(ts_buf, pkt.pts, st->time_base);
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printf("ret:%-10s st:%2d flags:%d dts:%s pts:%s pos:%7" PRId64 " size:%6d", ret_str(ret), pkt.stream_index, pkt.flags, dts_buf, ts_buf, pkt.pos, pkt.size);
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} else
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printf("ret:%s", ret_str(ret)); // necessary to avoid trailing whitespace
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printf("\n");
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}
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if(i>25) break;
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stream_id= (i>>1)%(ic->nb_streams+1) - 1;
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timestamp= (i*19362894167LL) % (4*AV_TIME_BASE) - AV_TIME_BASE;
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if(stream_id>=0){
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st= ic->streams[stream_id];
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timestamp= av_rescale_q(timestamp, AV_TIME_BASE_Q, st->time_base);
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}
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//FIXME fully test the new seek API
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if(i&1) ret = avformat_seek_file(ic, stream_id, INT64_MIN, timestamp, timestamp, 0);
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else ret = avformat_seek_file(ic, stream_id, timestamp, timestamp, INT64_MAX, 0);
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ts_str(ts_buf, timestamp, stream_id < 0 ? AV_TIME_BASE_Q : st->time_base);
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printf("ret:%-10s st:%2d flags:%d ts:%s\n", ret_str(ret), stream_id, i&1, ts_buf);
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}
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return 0;
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}
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