void quicktime_init_maps(quicktime_t *file)
{
int i, track;
/* get tables for all the different tracks */
file->total_atracks = quicktime_audio_tracks(file);
file->atracks = (quicktime_audio_map_t*)calloc(1, sizeof(quicktime_audio_map_t) * file->total_atracks);
for(i = 0, track = 0; i < file->total_atracks; i++)
{
while(!file->moov.trak[track]->mdia.minf.is_audio)
track++;
quicktime_init_audio_map(&(file->atracks[i]), file->moov.trak[track]);
}
file->total_vtracks = quicktime_video_tracks(file);
file->vtracks = (quicktime_video_map_t*)calloc(1, sizeof(quicktime_video_map_t) * file->total_vtracks);
for(track = 0, i = 0; i < file->total_vtracks; i++)
{
while(!file->moov.trak[track]->mdia.minf.is_video)
track++;
quicktime_init_video_map(&(file->vtracks[i]), file->moov.trak[track]);
}
}
gavl_time_t lqt_gavl_duration(quicktime_t * file)
{
gavl_time_t ret = 0, time;
int i, imax;
int timescale;
int64_t time_scaled;
imax = quicktime_audio_tracks(file);
for(i = 0; i < imax; i++)
{
timescale = quicktime_sample_rate(file, i);
time_scaled = quicktime_audio_length(file, i);
time = gavl_time_unscale(timescale, time_scaled);
if(ret < time)
ret = time;
}
imax = quicktime_video_tracks(file);
for(i = 0; i < imax; i++)
{
timescale = lqt_video_time_scale(file, i);
time_scaled = lqt_video_duration(file, i);
time = gavl_time_unscale(timescale, time_scaled);
if(ret < time)
ret = time;
}
return ret;
}
int lqt_gavl_get_audio_format(quicktime_t * file,
int track,
gavl_audio_format_t * format)
{
int i;
const lqt_channel_t * channel_setup;
if(track >= quicktime_audio_tracks(file) ||
track < 0)
return 0;
format->num_channels = quicktime_track_channels(file, track);
format->samplerate = quicktime_sample_rate(file, track);
format->sample_format =
sampleformat_lqt_2_gavl(lqt_get_sample_format(file, track));
format->interleave_mode = GAVL_INTERLEAVE_ALL;
format->samples_per_frame = 1024; // Meaningless but better than 0
channel_setup = lqt_get_channel_setup(file, track);
if(channel_setup)
{
for(i = 0; i < format->num_channels; i++)
{
format->channel_locations[i] = channel_lqt_2_gavl(channel_setup[i]);
}
}
else
gavl_set_channel_setup(format);
return 1;
}
void lqt_gavl_add_audio_track(quicktime_t * file,
gavl_audio_format_t * format,
lqt_codec_info_t * codec)
{
int track = quicktime_audio_tracks(file);
lqt_add_audio_track(file, format->num_channels, format->samplerate,
16, NULL);
if(codec)
lqt_gavl_set_audio_codec(file, track, format, codec);
}
void lqt_gavl_seek_scaled(quicktime_t * file, gavl_time_t * time, int scale)
{
int imax;
int i;
int64_t video_time_save = -1;
int video_timescale_save = -1;
int64_t time_scaled;
int timescale;
/* We synchronize to the first video track */
imax = quicktime_video_tracks(file);
for(i = 0; i < imax; i++)
{
timescale = lqt_video_time_scale(file, i);
time_scaled = gavl_time_rescale(scale, timescale, *time);
lqt_seek_video(file, i, time_scaled);
if(!i)
{
video_timescale_save = timescale;
video_time_save = time_scaled;
}
}
if(video_time_save >= 0)
*time = gavl_time_unscale(video_timescale_save, video_time_save);
imax = quicktime_audio_tracks(file);
for(i = 0; i < imax; i++)
{
timescale = quicktime_sample_rate(file, i);
time_scaled = gavl_time_rescale(scale, timescale, *time);
quicktime_set_audio_position(file, time_scaled, i);
}
imax = lqt_text_tracks(file);
for(i = 0; i < imax; i++)
{
if(lqt_is_chapter_track(file, i))
continue;
timescale = lqt_text_time_scale(file, i);
time_scaled = gavl_time_rescale(scale, timescale, *time);
lqt_set_text_time(file, i, time_scaled);
}
}
int quicktime_has_audio(quicktime_t *file)
{
if(quicktime_audio_tracks(file)) return 1;
return 0;
}
int quicktime_read_info(quicktime_t *file)
{
int result = 0, found_moov = 0;
int i, j, k, m, channel, trak_channel, track;
long start_position = quicktime_position(file);
quicktime_atom_t leaf_atom;
quicktime_trak_t *trak;
char avi_test[4];
/* Check for Microsoft AVI */
quicktime_read_char32(file, avi_test);
if(quicktime_match_32(avi_test, "RIFF"))
{
quicktime_read_char32(file, avi_test);
quicktime_read_char32(file, avi_test);
if(quicktime_match_32(avi_test, "AVI "))
file->use_avi = 1;
}
quicktime_set_position(file, 0);
do
{
result = quicktime_atom_read_header(file, &leaf_atom);
if(!result)
{
if(quicktime_atom_is(&leaf_atom, "mdat")) {
quicktime_read_mdat(file, &(file->mdat), &leaf_atom);
} else if(quicktime_atom_is(&leaf_atom, "moov")) {
quicktime_read_moov(file, &(file->moov), &leaf_atom);
found_moov = 1;
} else {
quicktime_atom_skip(file, &leaf_atom);
}
}
}while(!result && quicktime_position(file) < file->total_length);
/* go back to the original position */
quicktime_set_position(file, start_position);
if(found_moov) {
/* get tables for all the different tracks */
file->total_atracks = quicktime_audio_tracks(file);
file->atracks = (quicktime_audio_map_t*)calloc(1,
sizeof(quicktime_audio_map_t) * file->total_atracks);
for(i = 0, track = 0; i < file->total_atracks; i++) {
while(!file->moov.trak[track]->mdia.minf.is_audio)
track++;
quicktime_init_audio_map(&(file->atracks[i]), file->moov.trak[track]);
}
file->total_vtracks = quicktime_video_tracks(file);
file->vtracks = (quicktime_video_map_t*)calloc(1, sizeof(quicktime_video_map_t) * file->total_vtracks);
for(track = 0, i = 0; i < file->total_vtracks; i++)
{
while(!file->moov.trak[track]->mdia.minf.is_video)
track++;
quicktime_init_video_map(&(file->vtracks[i]), file->moov.trak[track]);
}
/* for all tracks */
for (track = 0; track < file->moov.total_tracks; track++) {
/* check if it's a hint track */
if (!file->moov.trak[track]->mdia.minf.is_hint) {
continue;
}
/* it is, so for each reference */
for (j = 0; j < file->moov.trak[track]->tref.hint.numTracks; j++) {
/* get the reference track id */
long refTrackId = file->moov.trak[track]->tref.hint.trackIds[j];
/* check each audio track */
for(k = 0; k < file->total_atracks; k++) {
if (file->atracks[k].track->tkhd.track_id == refTrackId) {
int m = file->atracks[k].totalHintTracks++;
file->atracks[k].hintTracks[m] = file->moov.trak[track];
file->atracks[k].hintPositions[m] = 0;
file->moov.trak[track]->tref.hint.traks[j] =
file->atracks[k].track;
file->total_hint_tracks++;
break;
}
}
/* check each video track */
for(k = 0; k < file->total_vtracks; k++) {
if (file->vtracks[k].track->tkhd.track_id == refTrackId) {
int m = file->vtracks[k].totalHintTracks++;
file->vtracks[k].hintTracks[m] = file->moov.trak[track];
file->vtracks[k].hintPositions[m] = 0;
file->moov.trak[track]->tref.hint.traks[j] =
file->vtracks[k].track;
file->total_hint_tracks++;
break;
}
}
}
}
}
if(found_moov)
return 0;
else
return 1;
}
void decode_mov(decode_t *decode)
{
quicktime_t *qt_handle=NULL;
unsigned char **p_raw_buffer;
char *p_v_codec=NULL,*p_a_codec=NULL,*p_buffer=NULL,*p_tmp=NULL;
int s_width=0,s_height=0,s_channel=0,s_bits=0,s_buff_size=0,s_audio_size=0,s_video_size=0,s_sample=0;
int s_cont,s_frames;
double s_fps=0;
long s_audio_rate,s_qt_pos;
uint16_t *p_mask1, *p_mask2;
char msgbuf[TC_BUF_MIN];
qt_handle = quicktime_open((char * )decode->name, 1, 0);
if (qt_handle == NULL) {
QT_ABORT("can't open quicktime!");
}
quicktime_set_preload(qt_handle, 10240000);
s_fps = quicktime_frame_rate(qt_handle, 0);
if (decode->format == TC_CODEC_PCM) {
if (quicktime_audio_tracks(qt_handle) == 0) {
QT_ABORT("no audio track in quicktime found!");
}
s_channel = quicktime_track_channels(qt_handle, 0);
s_audio_rate = quicktime_sample_rate(qt_handle, 0);
s_bits = quicktime_audio_bits(qt_handle, 0);
s_audio_size = quicktime_audio_length(qt_handle,0);
p_a_codec = quicktime_audio_compressor(qt_handle, 0);
if (decode->frame_limit[1] < s_audio_size) {
s_audio_size = decode->frame_limit[1] - decode->frame_limit[0];
} else {
s_audio_size -= decode->frame_limit[0];
}
if (decode->verbose) {
tc_log_info(__FILE__, "Audio codec=%s, rate=%ld Hz, bits=%d, channels=%d",
p_a_codec, s_audio_rate, s_bits, s_channel);
}
if ((s_bits != 8) && (s_bits != 16)) {
tc_snprintf(msgbuf, sizeof(msgbuf), "unsupported %d bit rate"
" in quicktime!", s_bits);
QT_ABORT(msgbuf);
}
if (s_channel > 2) {
tc_snprintf(msgbuf, sizeof(msgbuf), "too many audio tracks "
"(%d) found in quicktime!", s_channel);
QT_ABORT(msgbuf);
}
if (strlen(p_a_codec) == 0) {
QT_ABORT("unsupported codec (empty!) in quicktime!");
}
if (quicktime_supported_audio(qt_handle, 0) != 0) {
s_qt_pos = quicktime_audio_position(qt_handle,0);
s_sample = (1.00 * s_channel * s_bits *s_audio_rate)/(s_fps * 8);
s_buff_size = s_sample * sizeof(uint16_t);
p_buffer = tc_malloc(s_buff_size);
if (s_bits == 16)
s_sample /= 2;
if (s_channel == 1) {
p_mask1=(uint16_t *)p_buffer;
quicktime_set_audio_position(qt_handle, s_qt_pos + decode->frame_limit[0], 0);
for (; s_audio_size > 0; s_audio_size -= s_sample) {
if (quicktime_decode_audio(qt_handle, p_mask1, NULL, s_sample, 0) < 0) {
QT_ABORT("error reading quicktime audio frame");
}
QT_WRITE(decode->fd_out, p_buffer, s_buff_size);
}
} else {
s_sample /= 2;
p_mask1 = (uint16_t *)p_buffer;
p_mask2 = tc_malloc(s_sample * sizeof(uint16_t));
s_qt_pos += decode->frame_limit[0];
quicktime_set_audio_position(qt_handle, s_qt_pos, 0);
for (; s_audio_size > 0; s_audio_size -= s_sample) {
if (quicktime_decode_audio(qt_handle, p_mask1, NULL, s_sample, 0) < 0) {
QT_ABORT("error reading quicktime audio frame");
}
quicktime_set_audio_position(qt_handle, s_qt_pos, 0);
if (quicktime_decode_audio(qt_handle,p_mask2, NULL,s_sample, 1) < 0) {
QT_ABORT("error reading quicktime audio frame");
}
for (s_cont = s_sample - 1; s_cont >= 0; s_cont--)
p_mask1[s_cont<<1] = p_mask1[s_cont];
for (s_cont = 0; s_cont < s_sample; s_cont++)
p_mask1[1+(s_cont<<1)] = p_mask2[s_cont];
s_qt_pos += s_sample;
QT_WRITE(decode->fd_out, p_buffer, s_buff_size >> 1);
}
free(p_mask2);
}
free(p_buffer);
}
#if !defined(LIBQUICKTIME_000904)
else if ((strcasecmp(p_a_codec, QUICKTIME_RAW) == 0)
void probe_mov(info_t *ipipe)
{
quicktime_t *qt_file=NULL;
char *codec=NULL;
int j, tracks;
/* open movie for video probe */
if(qt_file==NULL)
if(NULL == (qt_file = quicktime_open((char *)ipipe->name,1,0))){
tc_log_error(__FILE__,"can't open quicktime!");
ipipe->error=1;
return;
}
// extract audio parameters
tracks=quicktime_audio_tracks(qt_file);
if(tracks>TC_MAX_AUD_TRACKS) {
tc_log_warn(__FILE__, "only %d of %d audio tracks scanned",
TC_MAX_AUD_TRACKS, tracks);
tracks=TC_MAX_AUD_TRACKS;
}
for(j=0; j<tracks; ++j) {
ipipe->probe_info->track[j].samplerate = quicktime_sample_rate(qt_file, j);
ipipe->probe_info->track[j].chan = quicktime_track_channels(qt_file, j);
ipipe->probe_info->track[j].bits = quicktime_audio_bits(qt_file, j);
codec = quicktime_audio_compressor(qt_file, j);
if(strcasecmp(codec,QUICKTIME_RAW)==0 || strcasecmp(codec,QUICKTIME_TWOS)==0)
ipipe->probe_info->track[j].format = CODEC_PCM;
else if(strcasecmp(codec,QUICKTIME_IMA4)==0)
ipipe->probe_info->track[j].format = CODEC_IMA4;
else
/* XXX not right but works */
ipipe->probe_info->track[j].format = CODEC_PCM;
if (! binary_dump)
tc_log_info(__FILE__, "audio codec=%s", codec);
if(ipipe->probe_info->track[j].chan>0) ++ipipe->probe_info->num_tracks;
}
// read all video parameter from input file
ipipe->probe_info->width = quicktime_video_width(qt_file, 0);
ipipe->probe_info->height = quicktime_video_height(qt_file, 0);
ipipe->probe_info->fps = quicktime_frame_rate(qt_file, 0);
ipipe->probe_info->frames = quicktime_video_length(qt_file, 0);
codec = quicktime_video_compressor(qt_file, 0);
//check for supported codecs
if(codec!=NULL) {
if(strlen(codec)==0) {
ipipe->probe_info->codec=TC_CODEC_RGB;
} else {
if(strcasecmp(codec,QUICKTIME_DV)==0)
ipipe->probe_info->codec=TC_CODEC_DV;
if(strcasecmp(codec,"dvsd")==0)
ipipe->probe_info->codec=TC_CODEC_DV;
if(strcasecmp(codec,"DIV3")==0)
ipipe->probe_info->codec=TC_CODEC_DIVX3;
if(strcasecmp(codec,"DIVX")==0)
ipipe->probe_info->codec=TC_CODEC_DIVX4;
if(strcasecmp(codec,"DX50")==0)
ipipe->probe_info->codec=TC_CODEC_DIVX5;
if(strcasecmp(codec,"MJPG")==0 || strcasecmp(codec,"JPEG")==0)
ipipe->probe_info->codec=TC_CODEC_MJPEG;
if(strcasecmp(codec,"YUV2")==0)
ipipe->probe_info->codec=TC_CODEC_YUV2;
if(strcasecmp(codec,"SVQ1")==0)
ipipe->probe_info->codec=TC_CODEC_SVQ1;
if(strcasecmp(codec,"SVQ3")==0)
ipipe->probe_info->codec=TC_CODEC_SVQ3;
}
} else
ipipe->probe_info->codec=TC_CODEC_UNKNOWN;
if (! binary_dump)
tc_log_info(__FILE__, "video codec=%s", codec);
ipipe->probe_info->magic=TC_MAGIC_MOV;
tc_frc_code_from_value(&(ipipe->probe_info->frc),
ipipe->probe_info->fps);
return;
}
