int main(int argc, char **argv)
{
av_log_set_flags(AV_LOG_SKIP_REPEATED);
av_register_all();
avformat_network_init();
const char *filename = argv[1];
demuxer dmux;
dmux.open_input(filename);
frame_loop(dmux);
return 0;
}
/**
* entry point
*/
int main (int argc, char *argv[]) {
uint16_t width, height, fps = 25, bit_depth = 8;
uint32_t audio_buffer_size, pixel_buffer_size;
char * audio_path;
char * output_dir = "";
size_t audio_frames, video_frames;
SNDFILE *audio_file;
SF_INFO info;
if(argc<5) {
printf("Usage: %s <audio file> <width> <height> <fps> [<ouput dir>]\n", argv[0]);
return (ERROR);
}
audio_path = argv[1];
if(argc>=6) {
output_dir = argv[5];
size_t len = strlen(output_dir);
while(output_dir[len - 1] == '/' && --len) {
output_dir[len] = '\0';
}
if(access(output_dir, W_OK) != 0) {
printf("output_dir '%s' is not accessible\n", output_dir);
return (ERROR);
}
}
if(argc>=4) {
fps = atoi(argv[4]);
}
width = atoi(argv[2]);
height = atoi(argv[3]);
if(width<MINWIDTH || width>MAXWIDTH || height<MINHEIGHT || height>MAXHEIGHT) {
printf("width must be beetween %d and %d, height between %d %d\n", MINWIDTH, MAXWIDTH, MINHEIGHT, MAXHEIGHT );
return (ERROR);
}
if(fps<MINFPS || fps>MAXFPS) {
printf("frames per second must be between %d and %d\n", MINFPS, MAXFPS );
return (ERROR);
}
memset (&info, 0, sizeof (info)) ;
// open soundfile
audio_file = sf_open(audio_path, SFM_READ, &info);
if (audio_file == NULL) {
printf ("failed to open file '%s' : \n%s\n", audio_path, sf_strerror (NULL));
return (ERROR) ;
}
if(info.channels<1) {
puts("no audio channels.");
return (ERROR);
}
// allocate buffer
audio_frames = floor(info.samplerate / fps);
audio_buffer_size = info.channels * audio_frames;
pixel_buffer_size = width * height * BYTES_PER_PIXEL;
if (audio_buffer_size > pixel_buffer_size) {
printf(
"audiobuffer (%d) greater than pixel buffer (%d). can't handle this atm.\n",
audio_buffer_size,
pixel_buffer_size
);
printf("samplerate: %d, channels: %d\n", info.samplerate, info.channels);
return (ERROR);
}
//printf("row_pointers: %lu \npixelbuffer: %lu pixelrow: %lu pixel: %lu\n", sizeof(row_pointers) / sizeof(row_pointers[0]), sizeof(pixelbuffer), sizeof(pixelbuffer[0]), sizeof(pixelbuffer[0][0]));
//output_rows(width, height, row_pointers);
video_frames = ceil(fps * info.frames / (int) info.samplerate);
//printf("video_frames: %u, audioframes: %u, samplerate: %u\n", v_frames, info.frames, (int) info.samplerate);
if(video_frames < 1) {
puts("not enough samples for a video frame");
return(ERROR);
}
s_dimension dimension = {width, height, audio_frames, (short)info.channels, bit_depth};
for(size_t frame=0; frame<video_frames; frame++) {
frame_loop(frame, output_dir, audio_file, dimension);
}
sf_close (audio_file);
return(0);
}
