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#include "config.h"
#include <oggplay/oggplay.h>
#include <stdio.h>
#include <stdlib.h>
#include <sndfile.h>
static int n_frames = 0;
void
dump_video_data (OggPlay * player, int track_num, OggPlayVideoData * video_data,
int frame) {
char fname[256];
FILE * f;
FILE * g;
int i;
unsigned char * ptr;
unsigned char * ptr2;
int y_width;
int y_height;
int uv_width;
int uv_height;
sprintf(fname, "y_frame%d", frame);
f = fopen(fname, "w");
oggplay_get_video_y_size(player, track_num, &y_width, &y_height);
oggplay_get_video_uv_size(player, track_num, &uv_width, &uv_height);
ptr = video_data->y;
for (i = 0; i < y_height; i++) {
fwrite(ptr, 1, y_width, f);
ptr += y_width;
}
fclose(f);
sprintf(fname, "u_frame%d", frame);
f = fopen(fname, "w");
sprintf(fname, "v_frame%d", frame);
g = fopen(fname, "w");
ptr = video_data->u;
ptr2 = video_data->v;
for (i = 0; i < uv_height; i++) {
fwrite(ptr, 1, uv_width, f);
fwrite(ptr2, 1, uv_width, g);
ptr += uv_width;
ptr2 += uv_width;
}
fclose(f);
fclose(g);
}
static SNDFILE * sndfile = NULL;
void
dump_audio_data (OggPlay * player, int track, OggPlayAudioData * data,
int size) {
if (sndfile == NULL) {
SF_INFO sfinfo;
oggplay_get_audio_samplerate(player, track, &(sfinfo.samplerate));
oggplay_get_audio_channels(player, track, &(sfinfo.channels));
sfinfo.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
printf("%d %d %d\n", sfinfo.samplerate, sfinfo.channels, sfinfo.format);
sndfile = sf_open ("audio", SFM_WRITE, &sfinfo);
}
sf_writef_float (sndfile, (float *)data, size);
}
int
dump_streams_callback (OggPlay *player, int num_tracks,
OggPlayCallbackInfo **track_info, void *user) {
int i;
int j;
OggPlayDataHeader ** headers;
OggPlayVideoData * video_data;
OggPlayAudioData * audio_data;
int required;
OggPlayDataType type;
for (i = 0; i < num_tracks; i++) {
type = oggplay_callback_info_get_type(track_info[i]);
headers = oggplay_callback_info_get_headers(track_info[i]);
switch (type) {
case OGGPLAY_INACTIVE:
break;
case OGGPLAY_YUV_VIDEO:
/*
* there should only be one record
*/
video_data = oggplay_callback_info_get_video_data(headers[0]);
dump_video_data(player, i, video_data, n_frames);
break;
case OGGPLAY_FLOATS_AUDIO:
required = oggplay_callback_info_get_required(track_info[i]);
for (j = 0; j < required; j++) {
int size;
size = oggplay_callback_info_get_record_size(headers[j]);
audio_data = oggplay_callback_info_get_audio_data(headers[j]);
dump_audio_data(player, i, audio_data, size);
}
default:
break;
}
}
n_frames++;
return 0;
}
int
main (int argc, char * argv[]) {
OggPlay * player;
OggPlayReader * reader;
int i;
if (argc < 2) {
printf ("please provide a filename\n");
exit (1);
}
reader = oggplay_file_reader_new(argv[1]);
player = oggplay_open_with_reader(reader);
if (player == NULL) {
printf ("could not initialise oggplay with this file\n");
exit (1);
}
printf ("there are %d tracks\n", oggplay_get_num_tracks (player));
for (i = 0; i < oggplay_get_num_tracks (player); i++) {
printf("Track %d is of type %s\n", i,
oggplay_get_track_typename (player, i));
if (oggplay_get_track_type (player, i) == OGGZ_CONTENT_THEORA) {
oggplay_set_callback_num_frames (player, i, 1);
}
if (oggplay_set_track_active(player, i) < 0) {
printf("\tNote: Could not set this track active!\n");
}
}
oggplay_set_data_callback(player, dump_streams_callback, NULL);
oggplay_start_decoding(player);
sf_close(sndfile);
printf("there were %d frames\n", n_frames);
return 0;
}
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