Ejemplos de gf_isom_hint_sample_new en C++ (Cpp)

Ejemplo n.º 1

Archivo: hint_track.c Proyecto: noelove/GPAC-old

//Starts a new sample for the hint track. A sample is just a collection of packets
//the transmissionTime is indicated in the media timeScale of the hint track
GF_Err gf_isom_begin_hint_sample(GF_ISOFile *the_file, u32 trackNumber, u32 HintDescriptionIndex, u32 TransmissionTime)
{
	GF_TrackBox *trak;
	u32 descIndex, dataRefIndex;
	GF_HintSample *samp;
	GF_HintSampleEntryBox *entry;
	GF_Err e;

	trak = gf_isom_get_track_from_file(the_file, trackNumber);
	if (!trak || !IsHintTrack(trak)) return GF_BAD_PARAM;

	//assert we're increasing the timing...
	if (trak->Media->information->sampleTable->TimeToSample->w_LastDTS > TransmissionTime) return GF_BAD_PARAM;

	//store the descIndex for this sample
	descIndex = HintDescriptionIndex;
	if (!HintDescriptionIndex) {
		descIndex = trak->Media->information->sampleTable->currentEntryIndex;
	}
	e = Media_GetSampleDesc(trak->Media, descIndex, (GF_SampleEntryBox **) &entry, &dataRefIndex);
	if (e) return e;
	if (!entry || !dataRefIndex) return GF_BAD_PARAM;
	//set the current to this one if no packet is used
	if (entry->hint_sample) return GF_BAD_PARAM;
	trak->Media->information->sampleTable->currentEntryIndex = descIndex;

	//create a new sample based on the protocol type of the hint description entry
	samp = gf_isom_hint_sample_new(entry->type);
	if (!samp) return GF_NOT_SUPPORTED;

	//OK, let's store the time of this sample
	samp->TransmissionTime = TransmissionTime;
	//OK, set our sample in the entry...
	entry->hint_sample = samp;
	return GF_OK;
}

Ejemplo n.º 2

Archivo: hinting.c Proyecto: ARSekkat/gpac

static GF_Err gf_isom_load_next_hint_sample(GF_ISOFile *the_file, u32 trackNumber, GF_TrackBox *trak, GF_HintSampleEntryBox *entry)
{
	GF_BitStream *bs;
	u32 descIdx;
	GF_ISOSample *samp;

	if (!entry->cur_sample) return GF_BAD_PARAM;
	if (entry->cur_sample>trak->Media->information->sampleTable->SampleSize->sampleCount) return GF_EOS;

	samp = gf_isom_get_sample(the_file, trackNumber, entry->cur_sample, &descIdx);
	if (!samp) return GF_IO_ERR;
	entry->cur_sample++;

	if (entry->hint_sample) gf_isom_hint_sample_del(entry->hint_sample);

	bs = gf_bs_new(samp->data, samp->dataLength, GF_BITSTREAM_READ);
	entry->hint_sample = gf_isom_hint_sample_new(entry->type);
	gf_isom_hint_sample_read(entry->hint_sample, bs, samp->dataLength);
	gf_bs_del(bs);
	entry->hint_sample->TransmissionTime = samp->DTS;
	gf_isom_sample_del(&samp);
	entry->hint_sample->sample_cache = gf_list_new();
	return GF_OK;
}