mkvtoolnix/lib/avilib-0.6.10/avimisc.c

145 lines
3.4 KiB
C

/*
* avimisc.c
*
* Copyright (C) Thomas Östreich - June 2001
*
* This file is part of transcode, a linux video stream processing tool
*
* transcode is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* transcode is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "common/os.h"
#include <stdio.h>
#include <stdlib.h>
#if !defined(COMP_MSC)
#include <unistd.h>
#endif
#include <sys/stat.h>
#include <string.h>
#include "avilib.h"
#include "xio.h"
void AVI_info(avi_t *avifile)
{
long frames, rate, mp3rate, chunks, tot_bytes;
int width, height, format, chan, bits;
int j, tracks, tmp;
double fps;
char *codec;
frames = AVI_video_frames(avifile);
width = AVI_video_width(avifile);
height = AVI_video_height(avifile);
fps = AVI_frame_rate(avifile);
codec = AVI_video_compressor(avifile);
printf("[avilib] V: %6.3f fps, codec=%s, frames=%ld, width=%d, height=%d\n", fps, ((strlen(codec)==0)? "RGB": codec), frames, width, height);
tracks=AVI_audio_tracks(avifile);
tmp=AVI_get_audio_track(avifile);
for(j=0; j<tracks; ++j) {
AVI_set_audio_track(avifile, j);
rate = AVI_audio_rate(avifile);
format = AVI_audio_format(avifile);
chan = AVI_audio_channels(avifile);
bits = AVI_audio_bits(avifile);
mp3rate= AVI_audio_mp3rate(avifile);
chunks = AVI_audio_chunks(avifile);
tot_bytes = AVI_audio_bytes(avifile);
if(chan>0) {
printf("[avilib] A: %ld Hz, format=0x%02x, bits=%d, channels=%d, bitrate=%ld kbps,\n", rate, format, bits, chan, mp3rate);
printf("[avilib] %ld chunks, %ld bytes, %s\n", chunks, tot_bytes, (AVI_get_audio_vbr(avifile)?"VBR":"CBR"));
} else
printf("[avilib] A: no audio track found\n");
}
AVI_set_audio_track(avifile, tmp); //reset
}
int AVI_file_check(char *import_file)
{
// check for sane video file
struct stat fbuf;
if(xio_stat(import_file, &fbuf) || import_file==NULL){
fprintf(stderr, "(%s) invalid input file \"%s\"\n", __FILE__,
import_file);
return(1);
}
return(0);
}
char *AVI_codec2str(short cc)
{
switch (cc) {
case 0x1://PCM
return("PCM");
break;
case 0x2://MS ADPCM
return("MS ADPCM");
break;
case 0x11://IMA ADPCM
printf("Audio in ADPCM format\n");
break;
case 0x31://MS GSM 6.10
case 0x32://MSN Audio
printf("Audio in MS GSM 6.10 format\n");
break;
case 0x50://MPEG Layer-1,2
return("MPEG Layer-1/2");
break;
case 0x55://MPEG Layer-3
return("MPEG Layer-3");
break;
case 0x160:
case 0x161://DivX audio
return("DivX WMA");
break;
case 0x401://Intel Music Coder
printf("Audio in IMC format\n");
break;
case 0x2000://AC3
return("AC3");
break;
default:
return("unknown");
}
return("unknown");
}