GF_EXPORT
GF_Err gf_webvtt_dump_iso_track(GF_MediaExporter *dumper, char *szName, u32 track, Bool merge, Bool box_dump)
{
#ifdef GPAC_DISABLE_MEDIA_IMPORT
return GF_NOT_SUPPORTED;
#else
GF_Err e;
u32 i;
u32 count;
u32 timescale;
FILE *out;
u32 di;
u64 duration;
GF_WebVTTParser *parser;
out = szName ? gf_fopen(szName, "wt") : (dumper->dump_file ? dumper->dump_file : stdout);
if (!out) return GF_IO_ERR;// gf_export_message(dumper, GF_IO_ERR, "Error opening %s for writing - check disk access & permissions", szName);
parser = gf_webvtt_parser_new();
parser->user = out;
parser->on_cue_read = gf_webvtt_dump_cue;
if (box_dump)
fprintf(out, "<WebVTTTrack trackID=\"%d\">\n", gf_isom_get_track_id(dumper->file, track) );
e = gf_webvtt_dump_header(out, dumper->file, track, box_dump, 1);
if (e) goto exit;
timescale = gf_isom_get_media_timescale(dumper->file, track);
count = gf_isom_get_sample_count(dumper->file, track);
for (i=0; i<count; i++) {
GF_ISOSample *samp = gf_isom_get_sample(dumper->file, track, i+1, &di);
if (!samp) {
e = gf_isom_last_error(dumper->file);
goto exit;
}
e = gf_webvtt_parse_iso_sample(parser, timescale, samp, merge, box_dump);
if (e) {
goto exit;
}
gf_isom_sample_del(&samp);
}
duration = gf_isom_get_media_duration(dumper->file, track);
gf_webvtt_parser_dump_finalize(parser, duration);
if (box_dump)
fprintf(out, "</WebVTTTrack>\n");
exit:
gf_webvtt_parser_del(parser);
if (szName) gf_fclose(out);
return e;
#endif
}
static void recompute_bitrate_mp4( GF_ISOFile *p_file, int i_track )
{
u32 count, di, timescale, time_wnd, rate;
u64 offset;
Double br;
GF_ESD *esd;
esd = gf_isom_get_esd( p_file, i_track, 1 );
if( !esd )
return;
esd->decoderConfig->avgBitrate = 0;
esd->decoderConfig->maxBitrate = 0;
rate = time_wnd = 0;
timescale = gf_isom_get_media_timescale( p_file, i_track );
count = gf_isom_get_sample_count( p_file, i_track );
for( u32 i = 0; i < count; i++ )
{
GF_ISOSample *samp = gf_isom_get_sample_info( p_file, i_track, i+1, &di, &offset );
if( !samp )
{
x264_cli_log( "mp4", X264_LOG_ERROR, "failure reading back frame %u\n", i );
break;
}
if( esd->decoderConfig->bufferSizeDB < samp->dataLength )
esd->decoderConfig->bufferSizeDB = samp->dataLength;
esd->decoderConfig->avgBitrate += samp->dataLength;
rate += samp->dataLength;
if( samp->DTS > time_wnd + timescale )
{
if( rate > esd->decoderConfig->maxBitrate )
esd->decoderConfig->maxBitrate = rate;
time_wnd = samp->DTS;
rate = 0;
}
gf_isom_sample_del( &samp );
}
br = (Double)(s64)gf_isom_get_media_duration( p_file, i_track );
br /= timescale;
esd->decoderConfig->avgBitrate = (u32)(esd->decoderConfig->avgBitrate / br);
/*move to bps*/
esd->decoderConfig->avgBitrate *= 8;
esd->decoderConfig->maxBitrate *= 8;
gf_isom_change_mpeg4_description( p_file, i_track, 1, esd );
gf_odf_desc_del( (GF_Descriptor*)esd );
}
void gf_media_get_sample_average_infos(GF_ISOFile *file, u32 Track, u32 *avgSize, u32 *MaxSize, u32 *TimeDelta, u32 *maxCTSDelta, u32 *const_duration, u32 *bandwidth)
{
u32 i, count, ts_diff;
u64 prevTS, DTS, tdelta;
Double bw;
GF_ISOSample *samp;
*avgSize = *MaxSize = 0;
*TimeDelta = 0;
*maxCTSDelta = 0;
bw = 0;
prevTS = 0;
DTS = 0;
tdelta = 0;
count = gf_isom_get_sample_count(file, Track);
*const_duration = 0;
for (i=0; i<count; i++) {
samp = gf_isom_get_sample_info(file, Track, i+1, NULL, NULL);
//get the size
*avgSize += samp->dataLength;
if (*MaxSize < samp->dataLength) *MaxSize = samp->dataLength;
ts_diff = (u32) (samp->DTS+samp->CTS_Offset - prevTS);
//get the time
tdelta += ts_diff;
if (i==1) {
*const_duration = ts_diff;
} else if ( (i<count-1) && (*const_duration != ts_diff) ) {
*const_duration = 0;
}
prevTS = samp->DTS+samp->CTS_Offset;
bw += 8*samp->dataLength;
//get the CTS delta
if (samp->CTS_Offset > *maxCTSDelta) *maxCTSDelta = samp->CTS_Offset;
gf_isom_sample_del(&samp);
}
if (count>1) *TimeDelta = (u32) (tdelta/ (count-1) );
else *TimeDelta = (u32) tdelta;
*avgSize /= count;
bw *= gf_isom_get_media_timescale(file, Track);
bw /= (s64) gf_isom_get_media_duration(file, Track);
bw /= 1000;
(*bandwidth) = (u32) (bw+0.5);
//delta is NOT an average, we need to know exactly how many bits are
//needed to encode CTS-DTS for ANY samples
}
GF_Err get_laser_track_size(GF_ISOFile *mp4, u32 *size)
{
GF_Err e = GF_OK;
u32 j;
u32 track_id, trackNum;
*size = 0;
track_id = gf_isom_get_track_id(mp4, 1);
trackNum = gf_isom_get_track_by_id(mp4, track_id);
for (j=0; j<gf_isom_get_sample_count(mp4, trackNum); j++) {
GF_ISOSample *samp = gf_isom_get_sample_info(mp4, trackNum, j+1, NULL, NULL);
*size += samp->dataLength;
gf_isom_sample_del(&samp);
}
return e;
}
static GF_Err TTIn_ChannelGetSLP(GF_InputService *plug, LPNETCHANNEL channel, char **out_data_ptr, u32 *out_data_size, GF_SLHeader *out_sl_hdr, Bool *sl_compressed, GF_Err *out_reception_status, Bool *is_new_data)
{
TTIn *tti = (TTIn *)plug->priv;
*out_reception_status = GF_OK;
*sl_compressed = 0;
*is_new_data = 0;
memset(&tti->sl_hdr, 0, sizeof(GF_SLHeader));
tti->sl_hdr.randomAccessPointFlag = 1;
tti->sl_hdr.compositionTimeStampFlag = 1;
tti->sl_hdr.accessUnitStartFlag = tti->sl_hdr.accessUnitEndFlag = 1;
/*fetching es data*/
if (tti->ch == channel) {
if (tti->samp_num>=gf_isom_get_sample_count(tti->mp4, tti->tt_track)) {
*out_reception_status = GF_EOS;
return GF_OK;
}
if (!tti->samp) {
u32 di;
if (tti->start_range) {
u32 di;
*out_reception_status = gf_isom_get_sample_for_movie_time(tti->mp4, tti->tt_track, tti->start_range, &di, GF_ISOM_SEARCH_SYNC_BACKWARD, &tti->samp, &tti->samp_num);
tti->start_range = 0;
} else {
tti->samp = gf_isom_get_sample(tti->mp4, tti->tt_track, tti->samp_num+1, &di);
}
if (!tti->samp) {
*out_reception_status = GF_CORRUPTED_DATA;
return GF_OK;
}
*is_new_data = 1;
}
tti->sl_hdr.compositionTimeStamp = tti->sl_hdr.decodingTimeStamp = tti->samp->DTS;
*out_data_ptr = tti->samp->data;
*out_data_size = tti->samp->dataLength;
*out_sl_hdr = tti->sl_hdr;
return GF_OK;
}
return GF_STREAM_NOT_FOUND;
}
GF_Err gf_webvtt_dump_iso_track(GF_MediaExporter *dumper, char *szName, u32 track, Bool merge)
{
GF_Err e;
u32 i;
u32 count;
u32 timescale;
FILE *out;
u32 di;
u64 duration;
GF_WebVTTParser *parser;
out = szName ? gf_fopen(szName, "wt") : stdout;
if (!out) return GF_IO_ERR;// gf_export_message(dumper, GF_IO_ERR, "Error opening %s for writing - check disk access & permissions", szName);
parser = gf_webvtt_parser_new();
parser->user = out;
parser->on_cue_read = gf_webvtt_dump_cue;
e = gf_webvtt_dump_header(out, dumper->file, track, 1);
if (e) goto exit;
timescale = gf_isom_get_media_timescale(dumper->file, track);
count = gf_isom_get_sample_count(dumper->file, track);
for (i=0; i<count; i++) {
GF_ISOSample *samp = gf_isom_get_sample(dumper->file, track, i+1, &di);
if (!samp) {
e = gf_isom_last_error(dumper->file);
goto exit;
}
e = gf_webvtt_parse_iso_sample(parser, timescale, samp, merge);
if (e) goto exit;
//gf_webvtt_dump_iso_sample(out, timescale, samp);
}
duration = gf_isom_get_media_duration(dumper->file, track);
gf_webvtt_parser_dump_finalize(parser, duration);
exit:
gf_webvtt_parser_del(parser);
if (szName) gf_fclose(out);
return e;
}
static void process_samples_from_track(GF_ISOFile *movie, u32 track_id, u32 *sample_index)
{
u32 track_number;
u32 sample_count;
/* Error indicator */
GF_Err e;
/* Number of bytes required to finish the current ISO Box reading */
u64 missing_bytes;
track_number = gf_isom_get_track_by_id(movie, track_id);
if (track_number == 0) {
fprintf(stdout, "Could not find track ID=%u. Ignore segment.\n", track_id);
return;
}
sample_count = gf_isom_get_sample_count(movie, track_number);
while (*sample_index <= sample_count) {
GF_ISOSample *iso_sample;
u32 sample_description_index;
iso_sample = gf_isom_get_sample(movie, track_number, *sample_index, &sample_description_index);
if (iso_sample) {
fprintf(stdout, "Found sample #%5d/%5d of length %8d, RAP: %d, DTS: "LLD", CTS: "LLD"\n", *sample_index, sample_count, iso_sample->dataLength, iso_sample->IsRAP, iso_sample->DTS, iso_sample->DTS+iso_sample->CTS_Offset);
(*sample_index)++;
/* Release the sample data, once you're done with it*/
gf_isom_sample_del(&iso_sample);
} else {
e = gf_isom_last_error(movie);
if (e == GF_ISOM_INCOMPLETE_FILE) {
missing_bytes = gf_isom_get_missing_bytes(movie, track_number);
fprintf(stdout, "Missing "LLU" bytes on input file\n", missing_bytes);
gf_sleep(1000);
}
}
}
}
GF_EXPORT
GF_RTPHinter *gf_hinter_track_new(GF_ISOFile *file, u32 TrackNum,
u32 Path_MTU, u32 max_ptime, u32 default_rtp_rate, u32 flags, u8 PayloadID,
Bool copy_media, u32 InterleaveGroupID, u8 InterleaveGroupPriority, GF_Err *e)
{
GF_SLConfig my_sl;
u32 descIndex, MinSize, MaxSize, avgTS, streamType, oti, const_dur, nb_ch, maxDTSDelta;
u8 OfficialPayloadID;
u32 TrackMediaSubType, TrackMediaType, hintType, nbEdts, required_rate, force_dts_delta, avc_nalu_size, PL_ID, bandwidth, IV_length, KI_length;
const char *url, *urn;
char *mpeg4mode;
Bool is_crypted, has_mpeg4_mapping;
GF_RTPHinter *tmp;
GF_ESD *esd;
*e = GF_BAD_PARAM;
if (!file || !TrackNum || !gf_isom_get_track_id(file, TrackNum)) return NULL;
if (!gf_isom_get_sample_count(file, TrackNum)) {
*e = GF_OK;
return NULL;
}
*e = GF_NOT_SUPPORTED;
nbEdts = gf_isom_get_edit_segment_count(file, TrackNum);
if (nbEdts>1) {
u64 et, sd, mt;
u8 em;
gf_isom_get_edit_segment(file, TrackNum, 1, &et, &sd, &mt, &em);
if ((nbEdts>2) || (em!=GF_ISOM_EDIT_EMPTY)) {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("[rtp hinter] Cannot hint track whith EditList\n"));
return NULL;
}
}
if (nbEdts) gf_isom_remove_edit_segments(file, TrackNum);
if (!gf_isom_is_track_enabled(file, TrackNum)) return NULL;
/*by default NO PL signaled*/
PL_ID = 0;
OfficialPayloadID = 0;
force_dts_delta = 0;
streamType = oti = 0;
mpeg4mode = NULL;
required_rate = 0;
is_crypted = 0;
IV_length = KI_length = 0;
oti = 0;
nb_ch = 0;
avc_nalu_size = 0;
has_mpeg4_mapping = 1;
TrackMediaType = gf_isom_get_media_type(file, TrackNum);
TrackMediaSubType = gf_isom_get_media_subtype(file, TrackNum, 1);
/*for max compatibility with QT*/
if (!default_rtp_rate) default_rtp_rate = 90000;
/*timed-text is a bit special, we support multiple stream descriptions & co*/
if ( (TrackMediaType==GF_ISOM_MEDIA_TEXT) || (TrackMediaType==GF_ISOM_MEDIA_SUBT)) {
hintType = GF_RTP_PAYT_3GPP_TEXT;
oti = GPAC_OTI_TEXT_MPEG4;
streamType = GF_STREAM_TEXT;
/*fixme - this works cos there's only one PL for text in mpeg4 at the current time*/
PL_ID = 0x10;
} else {
if (gf_isom_get_sample_description_count(file, TrackNum) > 1) return NULL;
TrackMediaSubType = gf_isom_get_media_subtype(file, TrackNum, 1);
switch (TrackMediaSubType) {
case GF_ISOM_SUBTYPE_MPEG4_CRYP:
is_crypted = 1;
case GF_ISOM_SUBTYPE_MPEG4:
esd = gf_isom_get_esd(file, TrackNum, 1);
hintType = GF_RTP_PAYT_MPEG4;
if (esd) {
streamType = esd->decoderConfig->streamType;
oti = esd->decoderConfig->objectTypeIndication;
if (esd->URLString) hintType = 0;
/*AAC*/
if ((streamType==GF_STREAM_AUDIO) && esd->decoderConfig->decoderSpecificInfo
/*(nb: we use mpeg4 for MPEG-2 AAC)*/
&& ((oti==GPAC_OTI_AUDIO_AAC_MPEG4) || (oti==GPAC_OTI_AUDIO_AAC_MPEG4) || (oti==GPAC_OTI_AUDIO_AAC_MPEG2_MP) || (oti==GPAC_OTI_AUDIO_AAC_MPEG2_LCP) || (oti==GPAC_OTI_AUDIO_AAC_MPEG2_SSRP)) ) {
u32 sample_rate;
GF_M4ADecSpecInfo a_cfg;
gf_m4a_get_config(esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength, &a_cfg);
nb_ch = a_cfg.nb_chan;
sample_rate = a_cfg.base_sr;
PL_ID = a_cfg.audioPL;
switch (a_cfg.base_object_type) {
case GF_M4A_AAC_MAIN:
case GF_M4A_AAC_LC:
if (flags & GP_RTP_PCK_USE_LATM_AAC) {
hintType = GF_RTP_PAYT_LATM;
break;
}
case GF_M4A_AAC_SBR:
case GF_M4A_AAC_PS:
case GF_M4A_AAC_LTP:
case GF_M4A_AAC_SCALABLE:
case GF_M4A_ER_AAC_LC:
case GF_M4A_ER_AAC_LTP:
case GF_M4A_ER_AAC_SCALABLE:
mpeg4mode = "AAC";
break;
case GF_M4A_CELP:
case GF_M4A_ER_CELP:
mpeg4mode = "CELP";
break;
}
required_rate = sample_rate;
}
/*MPEG1/2 audio*/
else if ((streamType==GF_STREAM_AUDIO) && ((oti==GPAC_OTI_AUDIO_MPEG2_PART3) || (oti==GPAC_OTI_AUDIO_MPEG1))) {
u32 sample_rate;
if (!is_crypted) {
GF_ISOSample *samp = gf_isom_get_sample(file, TrackNum, 1, NULL);
u32 hdr = GF_4CC((u8)samp->data[0], (u8)samp->data[1], (u8)samp->data[2], (u8)samp->data[3]);
nb_ch = gf_mp3_num_channels(hdr);
sample_rate = gf_mp3_sampling_rate(hdr);
gf_isom_sample_del(&samp);
hintType = GF_RTP_PAYT_MPEG12_AUDIO;
/*use official RTP/AVP payload type*/
OfficialPayloadID = 14;
required_rate = 90000;
}
/*encrypted MP3 must be sent through MPEG-4 generic to signal all ISMACryp stuff*/
else {
u8 bps;
gf_isom_get_audio_info(file, TrackNum, 1, &sample_rate, &nb_ch, &bps);
required_rate = sample_rate;
}
}
/*QCELP audio*/
else if ((streamType==GF_STREAM_AUDIO) && (oti==GPAC_OTI_AUDIO_13K_VOICE)) {
hintType = GF_RTP_PAYT_QCELP;
OfficialPayloadID = 12;
required_rate = 8000;
streamType = GF_STREAM_AUDIO;
nb_ch = 1;
}
/*EVRC/SVM audio*/
else if ((streamType==GF_STREAM_AUDIO) && ((oti==GPAC_OTI_AUDIO_EVRC_VOICE) || (oti==GPAC_OTI_AUDIO_SMV_VOICE)) ) {
hintType = GF_RTP_PAYT_EVRC_SMV;
required_rate = 8000;
streamType = GF_STREAM_AUDIO;
nb_ch = 1;
}
/*visual streams*/
else if (streamType==GF_STREAM_VISUAL) {
if (oti==GPAC_OTI_VIDEO_MPEG4_PART2) {
GF_M4VDecSpecInfo dsi;
gf_m4v_get_config(esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength, &dsi);
PL_ID = dsi.VideoPL;
}
/*MPEG1/2 video*/
if ( ((oti>=GPAC_OTI_VIDEO_MPEG2_SIMPLE) && (oti<=GPAC_OTI_VIDEO_MPEG2_422)) || (oti==GPAC_OTI_VIDEO_MPEG1)) {
if (!is_crypted) {
hintType = GF_RTP_PAYT_MPEG12_VIDEO;
OfficialPayloadID = 32;
}
}
/*for ISMA*/
if (is_crypted) {
/*that's another pain with ISMACryp, even if no B-frames the DTS is signaled...*/
if (oti==GPAC_OTI_VIDEO_MPEG4_PART2) force_dts_delta = 22;
else if (oti==GPAC_OTI_VIDEO_AVC) {
flags &= ~GP_RTP_PCK_USE_MULTI;
force_dts_delta = 22;
}
flags |= GP_RTP_PCK_SIGNAL_RAP | GP_RTP_PCK_SIGNAL_TS;
}
required_rate = default_rtp_rate;
}
/*systems streams*/
else if (gf_isom_has_sync_shadows(file, TrackNum) || gf_isom_has_sample_dependency(file, TrackNum)) {
flags |= GP_RTP_PCK_SYSTEMS_CAROUSEL;
}
gf_odf_desc_del((GF_Descriptor*)esd);
}
break;
case GF_ISOM_SUBTYPE_3GP_H263:
hintType = GF_RTP_PAYT_H263;
required_rate = 90000;
streamType = GF_STREAM_VISUAL;
OfficialPayloadID = 34;
/*not 100% compliant (short header is missing) but should still work*/
oti = GPAC_OTI_VIDEO_MPEG4_PART2;
PL_ID = 0x01;
break;
case GF_ISOM_SUBTYPE_3GP_AMR:
required_rate = 8000;
hintType = GF_RTP_PAYT_AMR;
streamType = GF_STREAM_AUDIO;
has_mpeg4_mapping = 0;
nb_ch = 1;
break;
case GF_ISOM_SUBTYPE_3GP_AMR_WB:
required_rate = 16000;
hintType = GF_RTP_PAYT_AMR_WB;
streamType = GF_STREAM_AUDIO;
has_mpeg4_mapping = 0;
nb_ch = 1;
break;
case GF_ISOM_SUBTYPE_AVC_H264:
case GF_ISOM_SUBTYPE_AVC2_H264:
case GF_ISOM_SUBTYPE_SVC_H264:
{
GF_AVCConfig *avcc = gf_isom_avc_config_get(file, TrackNum, 1);
required_rate = 90000; /* "90 kHz clock rate MUST be used"*/
hintType = GF_RTP_PAYT_H264_AVC;
streamType = GF_STREAM_VISUAL;
avc_nalu_size = avcc->nal_unit_size;
oti = GPAC_OTI_VIDEO_AVC;
PL_ID = 0x0F;
gf_odf_avc_cfg_del(avcc);
}
break;
case GF_ISOM_SUBTYPE_3GP_QCELP:
required_rate = 8000;
hintType = GF_RTP_PAYT_QCELP;
streamType = GF_STREAM_AUDIO;
oti = GPAC_OTI_AUDIO_13K_VOICE;
OfficialPayloadID = 12;
nb_ch = 1;
break;
case GF_ISOM_SUBTYPE_3GP_EVRC:
case GF_ISOM_SUBTYPE_3GP_SMV:
required_rate = 8000;
hintType = GF_RTP_PAYT_EVRC_SMV;
streamType = GF_STREAM_AUDIO;
oti = (TrackMediaSubType==GF_ISOM_SUBTYPE_3GP_EVRC) ? GPAC_OTI_AUDIO_EVRC_VOICE : GPAC_OTI_AUDIO_SMV_VOICE;
nb_ch = 1;
break;
case GF_ISOM_SUBTYPE_3GP_DIMS:
hintType = GF_RTP_PAYT_3GPP_DIMS;
streamType = GF_STREAM_SCENE;
break;
case GF_ISOM_SUBTYPE_AC3:
hintType = GF_RTP_PAYT_AC3;
streamType = GF_STREAM_AUDIO;
gf_isom_get_audio_info(file, TrackNum, 1, NULL, &nb_ch, NULL);
break;
default:
/*ERROR*/
hintType = 0;
break;
}
}
/*not hintable*/
if (!hintType) return NULL;
/*we only support self-contained files for hinting*/
gf_isom_get_data_reference(file, TrackNum, 1, &url, &urn);
if (url || urn) return NULL;
*e = GF_OUT_OF_MEM;
GF_SAFEALLOC(tmp, GF_RTPHinter);
if (!tmp) return NULL;
/*override hinter type if requested and possible*/
if (has_mpeg4_mapping && (flags & GP_RTP_PCK_FORCE_MPEG4)) {
hintType = GF_RTP_PAYT_MPEG4;
avc_nalu_size = 0;
}
/*use static payload ID if enabled*/
else if (OfficialPayloadID && (flags & GP_RTP_PCK_USE_STATIC_ID) ) {
PayloadID = OfficialPayloadID;
}
tmp->file = file;
tmp->TrackNum = TrackNum;
tmp->avc_nalu_size = avc_nalu_size;
tmp->nb_chan = nb_ch;
/*spatial scalability check*/
tmp->has_ctts = gf_isom_has_time_offset(file, TrackNum);
/*get sample info*/
gf_media_get_sample_average_infos(file, TrackNum, &MinSize, &MaxSize, &avgTS, &maxDTSDelta, &const_dur, &bandwidth);
/*systems carousel: we need at least IDX and RAP signaling*/
if (flags & GP_RTP_PCK_SYSTEMS_CAROUSEL) {
flags |= GP_RTP_PCK_SIGNAL_RAP;
}
/*update flags in MultiSL*/
if (flags & GP_RTP_PCK_USE_MULTI) {
if (MinSize != MaxSize) flags |= GP_RTP_PCK_SIGNAL_SIZE;
if (!const_dur) flags |= GP_RTP_PCK_SIGNAL_TS;
}
if (tmp->has_ctts) flags |= GP_RTP_PCK_SIGNAL_TS;
/*default SL for RTP */
InitSL_RTP(&my_sl);
my_sl.timestampResolution = gf_isom_get_media_timescale(file, TrackNum);
/*override clockrate if set*/
if (required_rate) {
Double sc = required_rate;
sc /= my_sl.timestampResolution;
maxDTSDelta = (u32) (maxDTSDelta*sc);
my_sl.timestampResolution = required_rate;
}
/*switch to RTP TS*/
max_ptime = (u32) (max_ptime * my_sl.timestampResolution / 1000);
my_sl.AUSeqNumLength = gf_get_bit_size(gf_isom_get_sample_count(file, TrackNum));
my_sl.CUDuration = const_dur;
if (gf_isom_has_sync_points(file, TrackNum)) {
my_sl.useRandomAccessPointFlag = 1;
} else {
my_sl.useRandomAccessPointFlag = 0;
my_sl.hasRandomAccessUnitsOnlyFlag = 1;
}
if (is_crypted) {
Bool use_sel_enc;
gf_isom_get_ismacryp_info(file, TrackNum, 1, NULL, NULL, NULL, NULL, NULL, &use_sel_enc, &IV_length, &KI_length);
if (use_sel_enc) flags |= GP_RTP_PCK_SELECTIVE_ENCRYPTION;
}
// in case a different timescale was provided
tmp->OrigTimeScale = gf_isom_get_media_timescale(file, TrackNum);
tmp->rtp_p = gf_rtp_builder_new(hintType, &my_sl, flags, tmp,
MP4T_OnNewPacket, MP4T_OnPacketDone,
/*if copy, no data ref*/
copy_media ? NULL : MP4T_OnDataRef,
MP4T_OnData);
//init the builder
gf_rtp_builder_init(tmp->rtp_p, PayloadID, Path_MTU, max_ptime,
streamType, oti, PL_ID, MinSize, MaxSize, avgTS, maxDTSDelta, IV_length, KI_length, mpeg4mode);
/*ISMA compliance is a pain...*/
if (force_dts_delta) tmp->rtp_p->slMap.DTSDeltaLength = force_dts_delta;
/* Hint Track Setup */
tmp->TrackID = gf_isom_get_track_id(file, TrackNum);
tmp->HintID = tmp->TrackID + 65535;
while (gf_isom_get_track_by_id(file, tmp->HintID)) tmp->HintID++;
tmp->HintTrack = gf_isom_new_track(file, tmp->HintID, GF_ISOM_MEDIA_HINT, my_sl.timestampResolution);
gf_isom_setup_hint_track(file, tmp->HintTrack, GF_ISOM_HINT_RTP);
/*create a hint description*/
gf_isom_new_hint_description(file, tmp->HintTrack, -1, -1, 0, &descIndex);
gf_isom_rtp_set_timescale(file, tmp->HintTrack, descIndex, my_sl.timestampResolution);
if (hintType==GF_RTP_PAYT_MPEG4) {
tmp->rtp_p->slMap.ObjectTypeIndication = oti;
/*set this SL for extraction.*/
gf_isom_set_extraction_slc(file, TrackNum, 1, &my_sl);
}
tmp->bandwidth = bandwidth;
/*set interleaving*/
gf_isom_set_track_group(file, TrackNum, InterleaveGroupID);
if (!copy_media) {
/*if we don't copy data set hint track and media track in the same group*/
gf_isom_set_track_group(file, tmp->HintTrack, InterleaveGroupID);
} else {
gf_isom_set_track_group(file, tmp->HintTrack, InterleaveGroupID + OFFSET_HINT_GROUP_ID);
}
/*use user-secified priority*/
InterleaveGroupPriority*=2;
gf_isom_set_track_priority_in_group(file, TrackNum, InterleaveGroupPriority+1);
gf_isom_set_track_priority_in_group(file, tmp->HintTrack, InterleaveGroupPriority);
#if 0
/*QT FF: not setting these flags = server uses a random offset*/
gf_isom_rtp_set_time_offset(file, tmp->HintTrack, 1, 0);
/*we don't use seq offset for maintainance pruposes*/
gf_isom_rtp_set_time_sequence_offset(file, tmp->HintTrack, 1, 0);
#endif
*e = GF_OK;
return tmp;
}
/*import cubic QTVR to mp4*/
GF_Err gf_sm_load_init_qt(GF_SceneLoader *load)
{
u32 i, di, w, h, tk, nb_samp;
Bool has_qtvr;
GF_ISOSample *samp;
GF_ISOFile *src;
GF_StreamContext *st;
GF_AUContext *au;
GF_Command *com;
M_Background *back;
M_NavigationInfo *ni;
M_Group *gr;
GF_ODUpdate *odU;
GF_SceneGraph *sg;
GF_ObjectDescriptor *od;
GF_ESD *esd;
if (!load->ctx) return GF_NOT_SUPPORTED;
src = gf_isom_open(load->fileName, GF_ISOM_OPEN_READ, NULL);
if (!src) return gf_qt_report(load, GF_URL_ERROR, "Opening file %s failed", load->fileName);
w = h = tk = 0;
nb_samp = 0;
has_qtvr = 0;
for (i=0; i<gf_isom_get_track_count(src); i++) {
switch (gf_isom_get_media_type(src, i+1)) {
case GF_ISOM_MEDIA_VISUAL:
if (gf_isom_get_media_subtype(src, i+1, 1) == GF_4CC('j', 'p', 'e', 'g')) {
GF_GenericSampleDescription *udesc = gf_isom_get_generic_sample_description(src, i+1, 1);
if ((udesc->width>w) || (udesc->height>h)) {
w = udesc->width;
h = udesc->height;
tk = i+1;
nb_samp = gf_isom_get_sample_count(src, i+1);
}
if (udesc->extension_buf) gf_free(udesc->extension_buf);
gf_free(udesc);
}
break;
case GF_4CC('q','t','v','r'):
has_qtvr = 1;
break;
}
}
if (!has_qtvr) {
gf_isom_delete(src);
return gf_qt_report(load, GF_NOT_SUPPORTED, "QTVR not found - no conversion available for this QuickTime movie");
}
if (!tk) {
gf_isom_delete(src);
return gf_qt_report(load, GF_NON_COMPLIANT_BITSTREAM, "No associated visual track with QTVR movie");
}
if (nb_samp!=6) {
gf_isom_delete(src);
return gf_qt_report(load, GF_NOT_SUPPORTED, "Movie %s doesn't look a Cubic QTVR - sorry...", load->fileName);
}
GF_LOG(GF_LOG_INFO, GF_LOG_PARSER, ("QT: Importing Cubic QTVR Movie"));
/*create scene*/
sg = load->ctx->scene_graph;
gr = (M_Group *) gf_node_new(sg, TAG_MPEG4_Group);
gf_node_register((GF_Node *)gr, NULL);
st = gf_sm_stream_new(load->ctx, 1, GF_STREAM_SCENE, 1);
au = gf_sm_stream_au_new(st, 0, 0, 1);
com = gf_sg_command_new(load->ctx->scene_graph, GF_SG_SCENE_REPLACE);
gf_list_add(au->commands, com);
com->node = (GF_Node *)gr;
back = (M_Background *) gf_node_new(sg, TAG_MPEG4_Background);
gf_node_list_add_child( &gr->children, (GF_Node*)back);
gf_node_register((GF_Node *)back, (GF_Node *)gr);
gf_sg_vrml_mf_alloc(&back->leftUrl, GF_SG_VRML_MFURL, 1);
back->leftUrl.vals[0].OD_ID = 2;
gf_sg_vrml_mf_alloc(&back->frontUrl, GF_SG_VRML_MFURL, 1);
back->frontUrl.vals[0].OD_ID = 3;
gf_sg_vrml_mf_alloc(&back->rightUrl, GF_SG_VRML_MFURL, 1);
back->rightUrl.vals[0].OD_ID = 4;
gf_sg_vrml_mf_alloc(&back->backUrl, GF_SG_VRML_MFURL, 1);
back->backUrl.vals[0].OD_ID = 5;
gf_sg_vrml_mf_alloc(&back->topUrl, GF_SG_VRML_MFURL, 1);
back->topUrl.vals[0].OD_ID = 6;
gf_sg_vrml_mf_alloc(&back->bottomUrl, GF_SG_VRML_MFURL, 1);
back->bottomUrl.vals[0].OD_ID = 7;
ni = (M_NavigationInfo *) gf_node_new(sg, TAG_MPEG4_NavigationInfo);
gf_node_list_add_child(&gr->children, (GF_Node*)ni);
gf_node_register((GF_Node *)ni, (GF_Node *)gr);
gf_sg_vrml_mf_reset(&ni->type, GF_SG_VRML_MFSTRING);
gf_sg_vrml_mf_alloc(&ni->type, GF_SG_VRML_MFSTRING, 1);
ni->type.vals[0] = gf_strdup("QTVR");
/*create ODs*/
st = gf_sm_stream_new(load->ctx, 2, GF_STREAM_OD, 1);
au = gf_sm_stream_au_new(st, 0, 0, 1);
odU = (GF_ODUpdate*) gf_odf_com_new(GF_ODF_OD_UPDATE_TAG);
gf_list_add(au->commands, odU);
for (i=0; i<6; i++) {
GF_MuxInfo *mi;
FILE *img;
char szName[1024];
od = (GF_ObjectDescriptor *) gf_odf_desc_new(GF_ODF_OD_TAG);
od->objectDescriptorID = 2+i;
esd = gf_odf_desc_esd_new(2);
esd->decoderConfig->streamType = GF_STREAM_VISUAL;
esd->decoderConfig->objectTypeIndication = GPAC_OTI_IMAGE_JPEG;
esd->ESID = 3+i;
/*extract image and remember it*/
mi = (GF_MuxInfo *) gf_odf_desc_new(GF_ODF_MUXINFO_TAG);
gf_list_add(esd->extensionDescriptors, mi);
mi->delete_file = 1;
sprintf(szName, "%s_img%d.jpg", load->fileName, esd->ESID);
mi->file_name = gf_strdup(szName);
gf_list_add(od->ESDescriptors, esd);
gf_list_add(odU->objectDescriptors, od);
samp = gf_isom_get_sample(src, tk, i+1, &di);
img = gf_f64_open(mi->file_name, "wb");
fwrite(samp->data, samp->dataLength, 1, img);
fclose(img);
gf_isom_sample_del(&samp);
}
gf_isom_delete(src);
return GF_OK;
}
static GF_Err ISOW_Write(GF_StreamingCache *mc, LPNETCHANNEL ch, char *data, u32 data_size, GF_SLHeader *sl_hdr)
{
ISOMChannel *mch;
GF_ESD *esd;
u32 di, mtype;
u64 DTS, CTS;
ISOMReader *cache = (ISOMReader *)mc->priv;
if (!cache->mov || !cache->service) return GF_BAD_PARAM;
mch = isor_get_channel(cache, ch);
if (!mch) {
Bool mapped;
GF_NetworkCommand com;
com.base.on_channel = ch;
com.base.command_type = GF_NET_CHAN_GET_ESD;
gf_service_command(cache->service, &com, GF_OK);
if (!com.cache_esd.esd) return GF_SERVICE_ERROR;
esd = (GF_ESD *)com.cache_esd.esd;
switch (esd->decoderConfig->streamType) {
case GF_STREAM_OD:
mtype = GF_ISOM_MEDIA_OD;
break;
case GF_STREAM_SCENE:
mtype = GF_ISOM_MEDIA_SCENE;
break;
case GF_STREAM_VISUAL:
mtype = GF_ISOM_MEDIA_VISUAL;
break;
case GF_STREAM_AUDIO:
mtype = GF_ISOM_MEDIA_AUDIO;
break;
case GF_STREAM_MPEG7:
mtype = GF_ISOM_MEDIA_MPEG7;
break;
case GF_STREAM_OCI:
mtype = GF_ISOM_MEDIA_OCI;
break;
case GF_STREAM_IPMP:
mtype = GF_ISOM_MEDIA_IPMP;
break;
case GF_STREAM_MPEGJ:
mtype = GF_ISOM_MEDIA_MPEGJ;
break;
case GF_STREAM_TEXT:
mtype = GF_ISOM_MEDIA_TEXT;
break;
default:
return GF_NOT_SUPPORTED;
}
GF_SAFEALLOC(mch, ISOMChannel);
if (!mch) {
return GF_OUT_OF_MEM;
}
mch->time_scale = esd->slConfig->timestampResolution;
mch->streamType = esd->decoderConfig->streamType;
mch->track = gf_isom_new_track(cache->mov, com.cache_esd.esd->ESID, mtype, mch->time_scale);
mch->is_playing = GF_TRUE;
mch->channel = ch;
mch->owner = cache;
gf_isom_set_track_enabled(cache->mov, mch->track, 1);
/*translate 3GP streams to MP4*/
mapped = GF_FALSE;
if (esd->decoderConfig->objectTypeIndication==GPAC_OTI_MEDIA_GENERIC) {
char szCode[5];
strncpy(szCode, esd->decoderConfig->decoderSpecificInfo->data, 4);
szCode[4]=0;
if (!stricmp(szCode, "samr") || !stricmp(szCode, "amr ") || !stricmp(szCode, "sawb")) {
GF_3GPConfig amrc;
mapped = GF_TRUE;
memset(&amrc, 0, sizeof(GF_3GPConfig));
amrc.frames_per_sample = (u32) esd->decoderConfig->decoderSpecificInfo->data[13];
amrc.type = (!stricmp(szCode, "sawb")) ? GF_ISOM_SUBTYPE_3GP_AMR_WB : GF_ISOM_SUBTYPE_3GP_AMR;
amrc.vendor = GF_VENDOR_GPAC;
gf_isom_3gp_config_new(cache->mov, mch->track, &amrc, NULL, NULL, &di);
} else if (!stricmp(szCode, "h263")) {
GF_3GPConfig h263c;
memset(&h263c, 0, sizeof(GF_3GPConfig));
h263c.type = GF_ISOM_SUBTYPE_3GP_H263;
h263c.vendor = GF_VENDOR_GPAC;
gf_isom_3gp_config_new(cache->mov, mch->track, &h263c, NULL, NULL, &di);
mapped = GF_TRUE;
}
}
if (!mapped) gf_isom_new_mpeg4_description(cache->mov, mch->track, esd, NULL, NULL, &di);
if (com.cache_esd.is_iod_stream) gf_isom_add_track_to_root_od(cache->mov, mch->track);
gf_list_add(cache->channels, mch);
}
/*first sample, cache it*/
if (!mch->cache_sample) {
mch->cache_seed_ts = sl_hdr->decodingTimeStamp;
mch->cache_sample = gf_isom_sample_new();
mch->cache_sample->IsRAP = sl_hdr->randomAccessPointFlag;
mch->cache_sample->dataLength = data_size;
mch->cache_sample->data = (char*)gf_malloc(sizeof(char)*data_size);
memcpy(mch->cache_sample->data, data, sizeof(char)*data_size);
return GF_OK;
}
/*adjust DTS/CTS*/
DTS = sl_hdr->decodingTimeStamp - mch->cache_seed_ts;
if ((mch->streamType==GF_STREAM_VISUAL) && (DTS<=mch->cache_sample->DTS)) {
assert(DTS>mch->prev_dts);
CTS = mch->cache_sample->DTS + mch->cache_sample->CTS_Offset;
mch->cache_sample->CTS_Offset = 0;
/*first time, shift all CTS*/
if (!mch->frame_cts_offset) {
u32 i, count = gf_isom_get_sample_count(cache->mov, mch->track);
mch->frame_cts_offset = (u32) (DTS-mch->prev_dts);
for (i=0; i<count; i++) {
gf_isom_modify_cts_offset(cache->mov, mch->track, i+1, mch->frame_cts_offset);
}
mch->cache_sample->CTS_Offset += mch->frame_cts_offset;
}
mch->cache_sample->DTS = mch->prev_dts + mch->frame_cts_offset;
mch->cache_sample->CTS_Offset += (u32) (CTS-mch->cache_sample->DTS);
}
/*deal with reference picture insertion: if no CTS offset and biggest CTS until now, this is
a reference insertion - we must check that in order to make sure we have strictly increasing DTSs*/
if (mch->max_cts && !mch->cache_sample->CTS_Offset && (mch->cache_sample->DTS+mch->cache_sample->CTS_Offset > mch->max_cts)) {
assert(mch->cache_sample->DTS > mch->prev_dts + mch->frame_cts_offset);
CTS = mch->cache_sample->DTS + mch->cache_sample->CTS_Offset;
mch->cache_sample->DTS = mch->prev_dts + mch->frame_cts_offset;
mch->cache_sample->CTS_Offset = (u32) (CTS-mch->cache_sample->DTS);
}
if (mch->cache_sample->CTS_Offset)
mch->max_cts = mch->cache_sample->DTS+mch->cache_sample->CTS_Offset;
/*add cache*/
gf_isom_add_sample(cache->mov, mch->track, 1, mch->cache_sample);
assert(!mch->prev_dts || (mch->prev_dts < mch->cache_sample->DTS));
mch->prev_dts = mch->cache_sample->DTS;
mch->duration = MAX(mch->max_cts, mch->prev_dts);
gf_isom_sample_del(&mch->cache_sample);
/*store sample*/
mch->cache_sample = gf_isom_sample_new();
mch->cache_sample->IsRAP = sl_hdr->randomAccessPointFlag;
mch->cache_sample->DTS = DTS + mch->frame_cts_offset;
mch->cache_sample->CTS_Offset = (u32) (sl_hdr->compositionTimeStamp - mch->cache_seed_ts - DTS);
mch->cache_sample->dataLength = data_size;
mch->cache_sample->data = (char*)gf_malloc(sizeof(char)*data_size);
memcpy(mch->cache_sample->data, data, sizeof(char)*data_size);
return GF_OK;
}
GF_EXPORT
GF_ISOMRTPStreamer *gf_isom_streamer_new(const char *file_name, const char *ip_dest, u16 port, Bool loop, Bool force_mpeg4, u32 path_mtu, u32 ttl, char *ifce_addr)
{
GF_ISOMRTPStreamer *streamer;
GF_Err e = GF_OK;
const char *opt = NULL;
/*GF_Config *configFile = NULL; */
u32 i, max_ptime, au_sn_len;
u8 payt;
GF_ISOFile *file;
GF_RTPTrack *track, *prev_track;
u16 first_port;
u32 nb_tracks;
u32 sess_data_size;
if (!ip_dest) ip_dest = "127.0.0.1";
if (!port) port = 7000;
if (!path_mtu) path_mtu = 1450;
GF_SAFEALLOC(streamer, GF_ISOMRTPStreamer);
streamer->dest_ip = gf_strdup(ip_dest);
payt = 96;
max_ptime = au_sn_len = 0;
file = gf_isom_open(file_name, GF_ISOM_OPEN_READ, NULL);
if (!file) {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("Error opening file %s: %s\n", opt, gf_error_to_string(gf_isom_last_error(NULL))));
return NULL;
}
streamer->isom = file;
streamer->loop = loop;
streamer->force_mpeg4_generic = force_mpeg4;
first_port = port;
sess_data_size = 0;
prev_track = NULL;
nb_tracks = gf_isom_get_track_count(streamer->isom);
for (i=0; i<nb_tracks; i++) {
u32 mediaSize, mediaDuration, flags, MinSize, MaxSize, avgTS, streamType, oti, const_dur, nb_ch, samplerate, maxDTSDelta, TrackMediaSubType, TrackMediaType, bandwidth, IV_length, KI_length, dsi_len;
const char *url, *urn;
char *dsi;
Bool is_crypted;
dsi_len = samplerate = streamType = oti = nb_ch = IV_length = KI_length = 0;
is_crypted = 0;
dsi = NULL;
flags = 0;
/*we only support self-contained files for hinting*/
gf_isom_get_data_reference(streamer->isom, i+1, 1, &url, &urn);
if (url || urn) continue;
TrackMediaType = gf_isom_get_media_type(streamer->isom, i+1);
TrackMediaSubType = gf_isom_get_media_subtype(streamer->isom, i+1, 1);
switch (TrackMediaType) {
case GF_ISOM_MEDIA_TEXT:
break;
case GF_ISOM_MEDIA_VISUAL:
case GF_ISOM_MEDIA_AUDIO:
case GF_ISOM_MEDIA_SUBT:
case GF_ISOM_MEDIA_OD:
case GF_ISOM_MEDIA_SCENE:
if (gf_isom_get_sample_description_count(streamer->isom, i+1) > 1) continue;
break;
default:
continue;
}
GF_SAFEALLOC(track, GF_RTPTrack);
if (prev_track) prev_track->next = track;
else streamer->stream = track;
prev_track = track;
track->track_num = i+1;
track->nb_aus = gf_isom_get_sample_count(streamer->isom, track->track_num);
track->timescale = gf_isom_get_media_timescale(streamer->isom, track->track_num);
mediaDuration = (u32)(gf_isom_get_media_duration(streamer->isom, track->track_num)*1000/track->timescale); // ms
mediaSize = (u32)gf_isom_get_media_data_size(streamer->isom, track->track_num);
sess_data_size += mediaSize;
if (mediaDuration > streamer->duration_ms) streamer->duration_ms = mediaDuration;
track->port = check_next_port(streamer, first_port);
first_port = track->port+2;
/*init packetizer*/
if (streamer->force_mpeg4_generic) flags = GP_RTP_PCK_SIGNAL_RAP | GP_RTP_PCK_FORCE_MPEG4;
switch (TrackMediaSubType) {
case GF_ISOM_SUBTYPE_MPEG4_CRYP:
is_crypted = 1;
case GF_ISOM_SUBTYPE_MPEG4:
{
GF_ESD *esd = gf_isom_get_esd(streamer->isom, track->track_num, 1);
if (esd) {
streamType = esd->decoderConfig->streamType;
oti = esd->decoderConfig->objectTypeIndication;
/*systems streams*/
if (streamType==GF_STREAM_AUDIO) {
gf_isom_get_audio_info(streamer->isom, track->track_num, 1, &samplerate, &nb_ch, NULL);
}
/*systems streams*/
else if (streamType==GF_STREAM_SCENE) {
if (gf_isom_has_sync_shadows(streamer->isom, track->track_num) || gf_isom_has_sample_dependency(streamer->isom, track->track_num))
flags |= GP_RTP_PCK_SYSTEMS_CAROUSEL;
}
if (esd->decoderConfig->decoderSpecificInfo) {
dsi = esd->decoderConfig->decoderSpecificInfo->data;
dsi_len = esd->decoderConfig->decoderSpecificInfo->dataLength;
esd->decoderConfig->decoderSpecificInfo->data = NULL;
esd->decoderConfig->decoderSpecificInfo->dataLength = 0;
}
gf_odf_desc_del((GF_Descriptor*)esd);
}
}
break;
case GF_ISOM_SUBTYPE_AVC_H264:
case GF_ISOM_SUBTYPE_AVC2_H264:
case GF_ISOM_SUBTYPE_SVC_H264:
{
GF_AVCConfig *avcc = gf_isom_avc_config_get(streamer->isom, track->track_num, 1);
track->avc_nalu_size = avcc->nal_unit_size;
gf_odf_avc_cfg_del(avcc);
streamType = GF_STREAM_VISUAL;
oti = GPAC_OTI_VIDEO_AVC;
}
break;
default:
streamType = GF_STREAM_4CC;
oti = TrackMediaSubType;
break;
}
/*get sample info*/
gf_media_get_sample_average_infos(streamer->isom, track->track_num, &MinSize, &MaxSize, &avgTS, &maxDTSDelta, &const_dur, &bandwidth);
if (is_crypted) {
Bool use_sel_enc;
gf_isom_get_ismacryp_info(streamer->isom, track->track_num, 1, NULL, NULL, NULL, NULL, NULL, &use_sel_enc, &IV_length, &KI_length);
if (use_sel_enc) flags |= GP_RTP_PCK_SELECTIVE_ENCRYPTION;
}
track->rtp = gf_rtp_streamer_new_extended(streamType, oti, track->timescale,
(char *) streamer->dest_ip, track->port, path_mtu, ttl, ifce_addr,
flags, dsi, dsi_len,
payt, samplerate, nb_ch,
is_crypted, IV_length, KI_length,
MinSize, MaxSize, avgTS, maxDTSDelta, const_dur, bandwidth, max_ptime, au_sn_len);
if (!track->rtp) {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("Could not initialize RTP streamer: %s\n", gf_error_to_string(e)));
goto exit;
}
payt++;
track->microsec_ts_scale = 1000000;
track->microsec_ts_scale /= gf_isom_get_media_timescale(streamer->isom, track->track_num);
}
return streamer;
exit:
gf_free(streamer);
return NULL;
}
static GF_Err gf_sm_load_run_isom(GF_SceneLoader *load)
{
GF_Err e;
FILE *logs;
u32 i, j, di, nbBifs, nbLaser, nb_samp, samp_done, init_offset;
GF_StreamContext *sc;
GF_ESD *esd;
GF_ODCodec *od_dec;
#ifndef GPAC_DISABLE_BIFS
GF_BifsDecoder *bifs_dec;
#endif
#ifndef GPAC_DISABLE_LASER
GF_LASeRCodec *lsr_dec;
#endif
if (!load || !load->isom) return GF_BAD_PARAM;
nbBifs = nbLaser = 0;
e = GF_OK;
#ifndef GPAC_DISABLE_BIFS
bifs_dec = gf_bifs_decoder_new(load->scene_graph, 1);
gf_bifs_decoder_set_extraction_path(bifs_dec, load->localPath, load->fileName);
#endif
od_dec = gf_odf_codec_new();
logs = NULL;
#ifndef GPAC_DISABLE_LASER
lsr_dec = gf_laser_decoder_new(load->scene_graph);
#endif
esd = NULL;
/*load each stream*/
nb_samp = 0;
for (i=0; i<gf_isom_get_track_count(load->isom); i++) {
u32 type = gf_isom_get_media_type(load->isom, i+1);
switch (type) {
case GF_ISOM_MEDIA_SCENE:
case GF_ISOM_MEDIA_OD:
nb_samp += gf_isom_get_sample_count(load->isom, i+1);
break;
default:
break;
}
}
samp_done = 1;
gf_isom_text_set_streaming_mode(load->isom, 1);
for (i=0; i<gf_isom_get_track_count(load->isom); i++) {
u32 type = gf_isom_get_media_type(load->isom, i+1);
switch (type) {
case GF_ISOM_MEDIA_SCENE:
case GF_ISOM_MEDIA_OD:
break;
default:
continue;
}
esd = gf_isom_get_esd(load->isom, i+1, 1);
if (!esd) continue;
if ((esd->decoderConfig->objectTypeIndication == GPAC_OTI_SCENE_AFX) ||
(esd->decoderConfig->objectTypeIndication == GPAC_OTI_SCENE_SYNTHESIZED_TEXTURE)
) {
nb_samp += gf_isom_get_sample_count(load->isom, i+1);
continue;
}
sc = gf_sm_stream_new(load->ctx, esd->ESID, esd->decoderConfig->streamType, esd->decoderConfig->objectTypeIndication);
sc->streamType = esd->decoderConfig->streamType;
sc->ESID = esd->ESID;
sc->objectType = esd->decoderConfig->objectTypeIndication;
sc->timeScale = gf_isom_get_media_timescale(load->isom, i+1);
/*we still need to reconfig the BIFS*/
if (esd->decoderConfig->streamType==GF_STREAM_SCENE) {
#ifndef GPAC_DISABLE_BIFS
/*BIFS*/
if (esd->decoderConfig->objectTypeIndication<=2) {
if (!esd->dependsOnESID && nbBifs && !i)
mp4_report(load, GF_OK, "several scene namespaces used or improper scene dependencies in file - import may be incorrect");
if (!esd->decoderConfig->decoderSpecificInfo) {
/* Hack for T-DMB non compliant streams */
e = gf_bifs_decoder_configure_stream(bifs_dec, esd->ESID, NULL, 0, esd->decoderConfig->objectTypeIndication);
} else {
e = gf_bifs_decoder_configure_stream(bifs_dec, esd->ESID, esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength, esd->decoderConfig->objectTypeIndication);
}
if (e) goto exit;
nbBifs++;
}
#endif
#ifndef GPAC_DISABLE_LASER
/*LASER*/
if (esd->decoderConfig->objectTypeIndication==0x09) {
if (!esd->dependsOnESID && nbBifs && !i)
mp4_report(load, GF_OK, "several scene namespaces used or improper scene dependencies in file - import may be incorrect");
e = gf_laser_decoder_configure_stream(lsr_dec, esd->ESID, esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength);
if (e) goto exit;
nbLaser++;
}
#endif
}
init_offset = 0;
/*dump all AUs*/
for (j=0; j<gf_isom_get_sample_count(load->isom, i+1); j++) {
GF_AUContext *au;
GF_ISOSample *samp = gf_isom_get_sample(load->isom, i+1, j+1, &di);
if (!samp) {
mp4_report(load, gf_isom_last_error(load->isom), "Unable to fetch sample %d from track ID %d - aborting track import", j+1, gf_isom_get_track_id(load->isom, i+1));
break;
}
/*check if track has initial offset*/
if (!j && gf_isom_get_edit_segment_count(load->isom, i+1)) {
u64 EditTime, dur, mtime;
u8 mode;
gf_isom_get_edit_segment(load->isom, i+1, 1, &EditTime, &dur, &mtime, &mode);
if (mode==GF_ISOM_EDIT_EMPTY) {
init_offset = (u32) (dur * sc->timeScale / gf_isom_get_timescale(load->isom) );
}
}
samp->DTS += init_offset;
au = gf_sm_stream_au_new(sc, samp->DTS, ((Double)(s64) samp->DTS) / sc->timeScale, (samp->IsRAP==RAP) ? 1 : 0);
if (esd->decoderConfig->streamType==GF_STREAM_SCENE) {
#ifndef GPAC_DISABLE_BIFS
if (esd->decoderConfig->objectTypeIndication<=2)
e = gf_bifs_decode_command_list(bifs_dec, esd->ESID, samp->data, samp->dataLength, au->commands);
#endif
#ifndef GPAC_DISABLE_LASER
if (esd->decoderConfig->objectTypeIndication==0x09)
e = gf_laser_decode_command_list(lsr_dec, esd->ESID, samp->data, samp->dataLength, au->commands);
#endif
} else {
e = gf_odf_codec_set_au(od_dec, samp->data, samp->dataLength);
if (!e) e = gf_odf_codec_decode(od_dec);
if (!e) {
while (1) {
GF_ODCom *odc = gf_odf_codec_get_com(od_dec);
if (!odc) break;
/*update ESDs if any*/
UpdateODCommand(load->isom, odc);
gf_list_add(au->commands, odc);
}
}
}
gf_isom_sample_del(&samp);
if (e) {
mp4_report(load, gf_isom_last_error(load->isom), "decoding sample %d from track ID %d failed", j+1, gf_isom_get_track_id(load->isom, i+1));
goto exit;
}
samp_done++;
gf_set_progress("MP4 Loading", samp_done, nb_samp);
}
gf_odf_desc_del((GF_Descriptor *) esd);
esd = NULL;
}
gf_isom_text_set_streaming_mode(load->isom, 0);
exit:
#ifndef GPAC_DISABLE_BIFS
gf_bifs_decoder_del(bifs_dec);
#endif
gf_odf_codec_del(od_dec);
#ifndef GPAC_DISABLE_LASER
gf_laser_decoder_del(lsr_dec);
#endif
if (esd) gf_odf_desc_del((GF_Descriptor *) esd);
if (logs) gf_fclose(logs);
return e;
}
int main(int argc, char **argv)
{
/* The ISO progressive reader */
GF_ISOFile *movie;
/* Error indicator */
GF_Err e;
/* Number of bytes required to finish the current ISO Box reading */
u64 missing_bytes;
/* Return value for the program */
int ret = 0;
/* Maximum index of the segments*/
u32 seg_max = argc-2;
/* Number of the segment being processed*/
u32 seg_curr = 0;
u32 track_id = 1;
u32 sample_index = 1;
/* Usage */
if (argc < 2) {
fprintf(stdout, "Usage: %s filename0 [filename1 filename2 ...]\n", argv[0]);
return 1;
}
#if defined(DEBUG) || defined(_DEBUG)
/* Enables GPAC memory tracking in debug mode only */
gf_sys_init(GF_TRUE);
gf_log_set_tool_level(GF_LOG_CONTAINER, GF_LOG_INFO);
gf_log_set_tool_level(GF_LOG_MEMORY, GF_LOG_INFO);
#endif
/* First or init segment */
fprintf(stdout, "Process segment %5d/%5d: %s\n", seg_curr, seg_max, argv[seg_curr+1]);
e = gf_isom_open_progressive(argv[seg_curr+1], 0, 0, &movie, &missing_bytes);
if ((e != GF_OK && e != GF_ISOM_INCOMPLETE_FILE) || movie == NULL) {
fprintf(stdout, "Could not open file %s for reading (%s).\n", argv[seg_curr+1], gf_error_to_string(e));
return 1;
}
process_samples_from_track(movie, track_id, &sample_index);
seg_curr++;
/* Process segments */
while (seg_curr <= seg_max) {
fprintf(stdout, "Process segment %5d/%5d: %s\n", seg_curr, seg_max, argv[seg_curr+1]);
/* Open the segment */
e = gf_isom_open_segment(movie, argv[seg_curr+1], 0, 0, GF_FALSE);
if (e != GF_OK) {
fprintf(stdout, "Could not open segment %s for reading (%s).\n", argv[seg_curr+1], gf_error_to_string(e));
ret = 1;
goto exit;
}
/* Process the segment */
process_samples_from_track(movie, track_id, &sample_index);
/* Release the segment */
gf_isom_release_segment(movie, 1);
seg_curr++;
}
exit:
fprintf(stdout, "Total nb Samples: %d\n", gf_isom_get_sample_count(movie, gf_isom_get_track_by_id(movie, track_id) ) );
gf_isom_release_segment(movie, 1);
gf_isom_close(movie);
#if defined(DEBUG) || defined(_DEBUG)
/* Closes GPAC memory tracking in debug mode only */
gf_sys_close();
#endif
return ret;
}
GF_EXPORT
GF_Err gf_hinter_track_process(GF_RTPHinter *tkHint)
{
GF_Err e;
u32 i, descIndex, duration;
u64 ts;
u8 PadBits;
Double ft;
GF_ISOSample *samp;
tkHint->HintSample = tkHint->RTPTime = 0;
tkHint->TotalSample = gf_isom_get_sample_count(tkHint->file, tkHint->TrackNum);
ft = tkHint->rtp_p->sl_config.timestampResolution;
ft /= tkHint->OrigTimeScale;
e = GF_OK;
for (i=0; i<tkHint->TotalSample; i++) {
samp = gf_isom_get_sample(tkHint->file, tkHint->TrackNum, i+1, &descIndex);
if (!samp) return GF_IO_ERR;
//setup SL
tkHint->CurrentSample = i + 1;
/*keep same AU indicator if sync shadow - TODO FIXME: this assumes shadows are placed interleaved with
the track content which is the case for GPAC scene carousel generation, but may not always be true*/
if (samp->IsRAP==2) {
tkHint->rtp_p->sl_header.AU_sequenceNumber -= 1;
samp->IsRAP = 1;
}
ts = (u64) (ft * (s64) (samp->DTS+samp->CTS_Offset));
tkHint->rtp_p->sl_header.compositionTimeStamp = ts;
ts = (u64) (ft * (s64)(samp->DTS));
tkHint->rtp_p->sl_header.decodingTimeStamp = ts;
tkHint->rtp_p->sl_header.randomAccessPointFlag = samp->IsRAP;
tkHint->base_offset_in_sample = 0;
/*crypted*/
if (tkHint->rtp_p->slMap.IV_length) {
GF_ISMASample *s = gf_isom_get_ismacryp_sample(tkHint->file, tkHint->TrackNum, samp, descIndex);
/*one byte take for selective_enc flag*/
if (s->flags & GF_ISOM_ISMA_USE_SEL_ENC) tkHint->base_offset_in_sample += 1;
if (s->flags & GF_ISOM_ISMA_IS_ENCRYPTED) tkHint->base_offset_in_sample += s->IV_length + s->KI_length;
gf_free(samp->data);
samp->data = s->data;
samp->dataLength = s->dataLength;
gp_rtp_builder_set_cryp_info(tkHint->rtp_p, s->IV, (char*)s->key_indicator, (s->flags & GF_ISOM_ISMA_IS_ENCRYPTED) ? 1 : 0);
s->data = NULL;
s->dataLength = 0;
gf_isom_ismacryp_delete_sample(s);
}
if (tkHint->rtp_p->sl_config.usePaddingFlag) {
gf_isom_get_sample_padding_bits(tkHint->file, tkHint->TrackNum, i+1, &PadBits);
tkHint->rtp_p->sl_header.paddingBits = PadBits;
} else {
tkHint->rtp_p->sl_header.paddingBits = 0;
}
duration = gf_isom_get_sample_duration(tkHint->file, tkHint->TrackNum, i+1);
ts = (u32) (ft * (s64) (duration));
/*unpack nal units*/
if (tkHint->avc_nalu_size) {
u32 v, size;
u32 remain = samp->dataLength;
char *ptr = samp->data;
tkHint->rtp_p->sl_header.accessUnitStartFlag = 1;
tkHint->rtp_p->sl_header.accessUnitEndFlag = 0;
while (remain) {
size = 0;
v = tkHint->avc_nalu_size;
while (v) {
size |= (u8) *ptr;
ptr++;
remain--;
v-=1;
if (v) size<<=8;
}
tkHint->base_offset_in_sample = samp->dataLength-remain;
remain -= size;
tkHint->rtp_p->sl_header.accessUnitEndFlag = remain ? 0 : 1;
e = gf_rtp_builder_process(tkHint->rtp_p, ptr, size, (u8) !remain, samp->dataLength, duration, (u8) (descIndex + GF_RTP_TX3G_SIDX_OFFSET) );
ptr += size;
tkHint->rtp_p->sl_header.accessUnitStartFlag = 0;
}
} else {
e = gf_rtp_builder_process(tkHint->rtp_p, samp->data, samp->dataLength, 1, samp->dataLength, duration, (u8) (descIndex + GF_RTP_TX3G_SIDX_OFFSET) );
}
tkHint->rtp_p->sl_header.packetSequenceNumber += 1;
//signal some progress
gf_set_progress("Hinting", tkHint->CurrentSample, tkHint->TotalSample);
tkHint->rtp_p->sl_header.AU_sequenceNumber += 1;
gf_isom_sample_del(&samp);
if (e) return e;
}
//flush
gf_rtp_builder_process(tkHint->rtp_p, NULL, 0, 1, 0, 0, 0);
gf_isom_end_hint_sample(tkHint->file, tkHint->HintTrack, (u8) tkHint->SampleIsRAP);
return GF_OK;
}
void bifs_to_vid(GF_ISOFile *file, char *szConfigFile, u32 width, u32 height, char *rad_name, u32 dump_type, char *out_dir, Double fps, s32 frameID, s32 dump_time)
{
GF_User user;
BIFSVID b2v;
u16 es_id;
Bool first_dump, needs_raw;
u32 i, j, di, count, timescale, frameNum;
u32 duration, cur_time;
GF_VideoSurface fb;
GF_Err e;
char old_driv[1024];
const char *test;
char config_path[GF_MAX_PATH];
avi_t *avi_out;
Bool reset_fps;
GF_ESD *esd;
char comp[5];
char *conv_buf;
memset(&user, 0, sizeof(GF_User));
if (szConfigFile && strlen(szConfigFile)) {
user.config = gf_cfg_init(config_path, NULL);
} else {
user.config = gf_cfg_init(NULL, NULL);
}
if (!user.config) {
fprintf(stdout, "Error: Configuration File \"%s\" not found in %s\n", GPAC_CFG_FILE, config_path);
return;
}
avi_out = NULL;
conv_buf = NULL;
esd = NULL;
needs_raw = 0;
test = gf_cfg_get_key(user.config, "General", "ModulesDirectory");
user.modules = gf_modules_new((const unsigned char *) test, user.config);
strcpy(old_driv, "raw_out");
if (!gf_modules_get_count(user.modules)) {
printf("Error: no modules found\n");
goto err_exit;
}
/*switch driver to raw_driver*/
test = gf_cfg_get_key(user.config, "Video", "DriverName");
if (test) strcpy(old_driv, test);
test = gf_cfg_get_key(user.config, "Compositor", "RendererName");
/*since we only support RGB24 for MP42AVI force using RAW out with 2D driver*/
if (test && strstr(test, "2D")) {
gf_cfg_set_key(user.config, "Video", "DriverName", "Raw Video Output");
needs_raw = 1;
}
needs_raw = 0;
user.init_flags = GF_TERM_NO_AUDIO | GF_TERM_FORCE_3D;
b2v.sr = gf_sc_new(&user, 0, NULL);
gf_sc_set_option(b2v.sr, GF_OPT_VISIBLE, 0);
b2v.sg = gf_sg_new();
gf_sg_set_scene_time_callback(b2v.sg, get_scene_time, &b2v);
gf_sg_set_init_callback(b2v.sg, node_init, &b2v);
gf_sg_set_modified_callback(b2v.sg, node_modif, &b2v);
/*load config*/
gf_sc_set_option(b2v.sr, GF_OPT_RELOAD_CONFIG, 1);
b2v.bifs = gf_bifs_decoder_new(b2v.sg, 0);
if (needs_raw) {
test = gf_cfg_get_key(user.config, "Video", "DriverName");
if (stricmp(test, "raw_out") && stricmp(test, "Raw Video Output")) {
printf("couldn't load raw output driver (%s used)\n", test);
goto err_exit;
}
}
strcpy(config_path, "");
if (out_dir) {
strcat(config_path, out_dir);
if (config_path[strlen(config_path)-1] != '\\') strcat(config_path, "\\");
}
strcat(config_path, rad_name);
strcat(config_path, "_bifs");
if (!dump_type) {
strcat(config_path, ".avi");
avi_out = AVI_open_output_file(config_path);
comp[0] = comp[1] = comp[2] = comp[3] = comp[4] = 0;
if (!avi_out) goto err_exit;
}
for (i=0; i<gf_isom_get_track_count(file); i++) {
esd = gf_isom_get_esd(file, i+1, 1);
if (!esd) continue;
if (!esd->dependsOnESID && (esd->decoderConfig->streamType == GF_STREAM_SCENE)) break;
gf_odf_desc_del((GF_Descriptor *) esd);
esd = NULL;
}
if (!esd) {
printf("no bifs track found\n");
goto err_exit;
}
b2v.duration = gf_isom_get_media_duration(file, i+1);
timescale = gf_isom_get_media_timescale(file, i+1);
es_id = (u16) gf_isom_get_track_id(file, i+1);
e = gf_bifs_decoder_configure_stream(b2v.bifs, es_id, esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength, esd->decoderConfig->objectTypeIndication);
if (e) {
printf("BIFS init error %s\n", gf_error_to_string(e));
gf_odf_desc_del((GF_Descriptor *) esd);
esd = NULL;
goto err_exit;
}
if (dump_time>=0) dump_time = dump_time *1000 / timescale;
gf_sc_set_scene(b2v.sr, b2v.sg);
count = gf_isom_get_sample_count(file, i+1);
reset_fps = 0;
if (!fps) {
fps = (Float) (count * timescale);
fps /= (Double) (s64) b2v.duration;
printf("Estimated BIFS FrameRate %g\n", fps);
reset_fps = 1;
}
if (!width || !height) {
gf_sg_get_scene_size_info(b2v.sg, &width, &height);
}
/*we work in RGB24, and we must make sure the pitch is %4*/
if ((width*3)%4) {
printf("Adjusting width (%d) to have a stride multiple of 4\n", width);
while ((width*3)%4) width--;
}
gf_sc_set_size(b2v.sr, width, height);
gf_sc_draw_frame(b2v.sr);
gf_sc_get_screen_buffer(b2v.sr, &fb);
width = fb.width;
height = fb.height;
if (avi_out) {
AVI_set_video(avi_out, width, height, fps, comp);
conv_buf = gf_malloc(sizeof(char) * width * height * 3);
}
printf("Dumping at BIFS resolution %d x %d\n\n", width, height);
gf_sc_release_screen_buffer(b2v.sr, &fb);
cur_time = 0;
duration = (u32)(timescale / fps);
if (reset_fps) fps = 0;
frameNum = 1;
first_dump = 1;
for (j=0; j<count; j++) {
GF_ISOSample *samp = gf_isom_get_sample(file, i+1, j+1, &di);
b2v.cts = samp->DTS + samp->CTS_Offset;
/*apply command*/
gf_bifs_decode_au(b2v.bifs, es_id, samp->data, samp->dataLength, ((Double)(s64)b2v.cts)/1000.0);
gf_isom_sample_del(&samp);
if ((frameID>=0) && (j<(u32)frameID)) continue;
if ((dump_time>=0) && ((u32) dump_time>b2v.cts)) continue;
/*render frame*/
gf_sc_draw_frame(b2v.sr);
/*needed for background2D !!*/
if (first_dump) {
gf_sc_draw_frame(b2v.sr);
first_dump = 0;
}
if (fps) {
if (cur_time > b2v.cts) continue;
while (1) {
printf("dumped frame time %f (frame %d - sample %d)\r", ((Float)cur_time)/timescale, frameNum, j+1);
dump_frame(b2v, conv_buf, config_path, dump_type, avi_out, frameNum);
frameNum++;
cur_time += duration;
if (cur_time > b2v.cts) break;
}
} else {
dump_frame(b2v, conv_buf, config_path, dump_type, avi_out, (frameID>=0) ? frameID : frameNum);
if (frameID>=0 || dump_time>=0) break;
frameNum++;
printf("dumped frame %d / %d\r", j+1, count);
}
}
gf_odf_desc_del((GF_Descriptor *) esd);
/*destroy everything*/
gf_bifs_decoder_del(b2v.bifs);
gf_sg_del(b2v.sg);
gf_sc_set_scene(b2v.sr, NULL);
gf_sc_del(b2v.sr);
err_exit:
if (avi_out) AVI_close(avi_out);
if (conv_buf) gf_free(conv_buf);
if (user.modules) gf_modules_del(user.modules);
if (needs_raw) gf_cfg_set_key(user.config, "Video", "DriverName", old_driv);
gf_cfg_del(user.config);
}
GF_EXPORT
GF_Err gf_hinter_finalize(GF_ISOFile *file, u32 IOD_Profile, u32 bandwidth)
{
u32 i, sceneT, odT, descIndex, size, size64;
GF_InitialObjectDescriptor *iod;
GF_SLConfig slc;
GF_ESD *esd;
GF_ISOSample *samp;
Bool remove_ocr;
char *buffer;
char buf64[5000], sdpLine[2300];
gf_isom_sdp_clean(file);
if (bandwidth) {
sprintf(buf64, "b=AS:%d", bandwidth);
gf_isom_sdp_add_line(file, buf64);
}
//xtended attribute for copyright
sprintf(buf64, "a=x-copyright: %s", "MP4/3GP File hinted with GPAC " GPAC_FULL_VERSION " (C)2000-2005 - http://gpac.sourceforge.net");
gf_isom_sdp_add_line(file, buf64);
if (IOD_Profile == GF_SDP_IOD_NONE) return GF_OK;
odT = sceneT = 0;
for (i=0; i<gf_isom_get_track_count(file); i++) {
if (!gf_isom_is_track_in_root_od(file, i+1)) continue;
switch (gf_isom_get_media_type(file,i+1)) {
case GF_ISOM_MEDIA_OD:
odT = i+1;
break;
case GF_ISOM_MEDIA_SCENE:
sceneT = i+1;
break;
}
}
remove_ocr = 0;
if (IOD_Profile == GF_SDP_IOD_ISMA_STRICT) {
IOD_Profile = GF_SDP_IOD_ISMA;
remove_ocr = 1;
}
/*if we want ISMA like iods, we need at least BIFS */
if ( (IOD_Profile == GF_SDP_IOD_ISMA) && !sceneT ) return GF_BAD_PARAM;
/*do NOT change PLs, we assume they are correct*/
iod = (GF_InitialObjectDescriptor *) gf_isom_get_root_od(file);
if (!iod) return GF_NOT_SUPPORTED;
/*rewrite an IOD with good SL config - embbed data if possible*/
if (IOD_Profile == GF_SDP_IOD_ISMA) {
Bool is_ok = 1;
while (gf_list_count(iod->ESDescriptors)) {
esd = (GF_ESD*)gf_list_get(iod->ESDescriptors, 0);
gf_odf_desc_del((GF_Descriptor *) esd);
gf_list_rem(iod->ESDescriptors, 0);
}
/*get OD esd, and embbed stream data if possible*/
if (odT) {
esd = gf_isom_get_esd(file, odT, 1);
if (gf_isom_get_sample_count(file, odT)==1) {
samp = gf_isom_get_sample(file, odT, 1, &descIndex);
if (gf_hinter_can_embbed_data(samp->data, samp->dataLength, GF_STREAM_OD)) {
InitSL_NULL(&slc);
slc.predefined = 0;
slc.hasRandomAccessUnitsOnlyFlag = 1;
slc.timeScale = slc.timestampResolution = gf_isom_get_media_timescale(file, odT);
slc.OCRResolution = 1000;
slc.startCTS = samp->DTS+samp->CTS_Offset;
slc.startDTS = samp->DTS;
//set the SL for future extraction
gf_isom_set_extraction_slc(file, odT, 1, &slc);
size64 = gf_base64_encode(samp->data, samp->dataLength, buf64, 2000);
buf64[size64] = 0;
sprintf(sdpLine, "data:application/mpeg4-od-au;base64,%s", buf64);
esd->decoderConfig->avgBitrate = 0;
esd->decoderConfig->bufferSizeDB = samp->dataLength;
esd->decoderConfig->maxBitrate = 0;
size64 = strlen(sdpLine)+1;
esd->URLString = (char*)gf_malloc(sizeof(char) * size64);
strcpy(esd->URLString, sdpLine);
} else {
GF_LOG(GF_LOG_WARNING, GF_LOG_RTP, ("[rtp hinter] OD sample too large to be embedded in IOD - ISMA disabled\n"));
is_ok = 0;
}
gf_isom_sample_del(&samp);
}
if (remove_ocr) esd->OCRESID = 0;
else if (esd->OCRESID == esd->ESID) esd->OCRESID = 0;
//OK, add this to our IOD
gf_list_add(iod->ESDescriptors, esd);
}
esd = gf_isom_get_esd(file, sceneT, 1);
if (gf_isom_get_sample_count(file, sceneT)==1) {
samp = gf_isom_get_sample(file, sceneT, 1, &descIndex);
if (gf_hinter_can_embbed_data(samp->data, samp->dataLength, GF_STREAM_SCENE)) {
slc.timeScale = slc.timestampResolution = gf_isom_get_media_timescale(file, sceneT);
slc.OCRResolution = 1000;
slc.startCTS = samp->DTS+samp->CTS_Offset;
slc.startDTS = samp->DTS;
//set the SL for future extraction
gf_isom_set_extraction_slc(file, sceneT, 1, &slc);
//encode in Base64 the sample
size64 = gf_base64_encode(samp->data, samp->dataLength, buf64, 2000);
buf64[size64] = 0;
sprintf(sdpLine, "data:application/mpeg4-bifs-au;base64,%s", buf64);
esd->decoderConfig->avgBitrate = 0;
esd->decoderConfig->bufferSizeDB = samp->dataLength;
esd->decoderConfig->maxBitrate = 0;
esd->URLString = (char*)gf_malloc(sizeof(char) * (strlen(sdpLine)+1));
strcpy(esd->URLString, sdpLine);
} else {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("[rtp hinter] Scene description sample too large to be embedded in IOD - ISMA disabled\n"));
is_ok = 0;
}
gf_isom_sample_del(&samp);
}
if (remove_ocr) esd->OCRESID = 0;
else if (esd->OCRESID == esd->ESID) esd->OCRESID = 0;
gf_list_add(iod->ESDescriptors, esd);
if (is_ok) {
u32 has_a, has_v, has_i_a, has_i_v;
has_a = has_v = has_i_a = has_i_v = 0;
for (i=0; i<gf_isom_get_track_count(file); i++) {
esd = gf_isom_get_esd(file, i+1, 1);
if (!esd) continue;
if (esd->decoderConfig->streamType==GF_STREAM_VISUAL) {
if (esd->decoderConfig->objectTypeIndication==GPAC_OTI_VIDEO_MPEG4_PART2) has_i_v ++;
else has_v++;
} else if (esd->decoderConfig->streamType==GF_STREAM_AUDIO) {
if (esd->decoderConfig->objectTypeIndication==GPAC_OTI_AUDIO_AAC_MPEG4) has_i_a ++;
else has_a++;
}
gf_odf_desc_del((GF_Descriptor *)esd);
}
/*only 1 MPEG-4 visual max and 1 MPEG-4 audio max for ISMA compliancy*/
if (!has_v && !has_a && (has_i_v<=1) && (has_i_a<=1)) {
sprintf(sdpLine, "a=isma-compliance:1,1.0,1");
gf_isom_sdp_add_line(file, sdpLine);
}
}
}
//encode the IOD
buffer = NULL;
size = 0;
gf_odf_desc_write((GF_Descriptor *) iod, &buffer, &size);
gf_odf_desc_del((GF_Descriptor *)iod);
//encode in Base64 the iod
size64 = gf_base64_encode(buffer, size, buf64, 2000);
buf64[size64] = 0;
gf_free(buffer);
sprintf(sdpLine, "a=mpeg4-iod:\"data:application/mpeg4-iod;base64,%s\"", buf64);
gf_isom_sdp_add_line(file, sdpLine);
return GF_OK;
}
static u32 iso_progressive_read_thread(void *param)
{
ISOProgressiveReader *reader = (ISOProgressiveReader *)param;
u32 track_number;
GF_ISOSample *iso_sample;
u32 samples_processed;
u32 sample_index;
u32 sample_count;
samples_processed = 0;
sample_count = 0;
track_number = 0;
/* samples are numbered starting from 1 */
sample_index = 1;
while (reader->do_run == GF_TRUE) {
/* we can only parse if there is a movie */
if (reader->movie) {
/* block the data input until we are done in the parsing */
gf_mx_p(reader->mutex);
/* get the track number we want */
if (track_number == 0) {
track_number = gf_isom_get_track_by_id(reader->movie, reader->track_id);
}
/* only if we have the track number can we try to get the sample data */
if (track_number != 0) {
u32 new_sample_count;
u32 di; /*descriptor index*/
/* let's see how many samples we have since the last parsed */
new_sample_count = gf_isom_get_sample_count(reader->movie, track_number);
if (new_sample_count > sample_count) {
/* New samples have been added to the file */
fprintf(stdout, "Found %d new samples (total: %d)\n", new_sample_count - sample_count, new_sample_count);
if (sample_count == 0) {
sample_count = new_sample_count;
}
}
if (sample_count == 0) {
/*let the reader push new data */
gf_mx_v(reader->mutex);
//gf_sleep(1000);
} else {
/* let's analyze the samples we have parsed so far one by one */
iso_sample = gf_isom_get_sample(reader->movie, track_number, sample_index, &di);
if (iso_sample) {
/* if you want the sample description data, you can call:
GF_Descriptor *desc = gf_isom_get_decoder_config(reader->movie, reader->track_handle, di);
*/
samples_processed++;
/*here we dump some sample info: samp->data, samp->dataLength, samp->isRAP, samp->DTS, samp->CTS_Offset */
fprintf(stdout, "Found sample #%5d (#%5d) of length %8d, RAP: %d, DTS: "LLD", CTS: "LLD"\r", sample_index, samples_processed, iso_sample->dataLength, iso_sample->IsRAP, iso_sample->DTS, iso_sample->DTS+iso_sample->CTS_Offset);
sample_index++;
/*release the sample data, once you're done with it*/
gf_isom_sample_del(&iso_sample);
/* once we have read all the samples, we can release some data and force a reparse of the input buffer */
if (sample_index > sample_count) {
u64 new_buffer_start;
u64 missing_bytes;
fprintf(stdout, "\nReleasing unnecessary buffers\n");
/* release internal structures associated with the samples read so far */
gf_isom_reset_tables(reader->movie, GF_TRUE);
#if 1
/* release the associated input data as well */
gf_isom_reset_data_offset(reader->movie, &new_buffer_start);
if (new_buffer_start) {
u32 offset = (u32)new_buffer_start;
memmove(reader->data, reader->data+offset, reader->data_size-offset);
reader->valid_data_size -= offset;
}
sprintf(reader->data_url, "gmem://%d@%p", reader->valid_data_size, reader->data);
gf_isom_refresh_fragmented(reader->movie, &missing_bytes, reader->data_url);
#endif
/* update the sample count and sample index */
sample_count = new_sample_count - sample_count;
assert(sample_count == 0);
sample_index = 1;
}
} else {
GF_Err e = gf_isom_last_error(reader->movie);
fprintf(stdout, "Could not get sample %s\r", gf_error_to_string(e));
}
/* and finally, let the data reader push more data */
gf_mx_v(reader->mutex);
}
}
} else {
//gf_sleep(1);
}
}
return 0;
}
