コード例 #1
0
ファイル: M4_HintTrack.c プロジェクト: DmitrySigaev/DSMedia
//stores the hint sample in the file
//set IsRandomAccessPoint if you want to indicate that this is a random access point 
//in the stream
M4Err M4H_EndHintSample(M4File *the_file, u32 trackNumber, u8 IsRandomAccessPoint)
{
	TrackAtom *trak;
	HintSampleEntryAtom *entry;
	u32 dataRefIndex;
	M4Err e;
	BitStream *bs;
	M4Sample *samp;

	trak = GetTrackFromFile(the_file, trackNumber);
	if (!trak || !IsHintTrack(trak)) return M4BadParam;

	e = Media_GetSampleDesc(trak->Media, trak->Media->information->sampleTable->currentEntryIndex, (SampleEntryAtom **) &entry, &dataRefIndex);
	if (e) return e;
	if (!entry->w_sample) return M4BadParam;

	//first of all, we need to adjust the offset for data referenced IN THIS hint sample
	//and get some PckSize
	e = AdjustHintInfo(entry, trak->Media->information->sampleTable->SampleSize->sampleCount + 1);
	if (e) return e;	
	
	//ok, let's write the sample
	bs = NewBitStream(NULL, 0, BS_WRITE);
	e = Write_HintSample(entry->w_sample, bs);
	if (e) {
		DeleteBitStream(bs);
		return e;
	}
	BS_CutBuffer(bs);

	samp = M4_NewSample();
	samp->CTS_Offset = 0;
	samp->IsRAP = IsRandomAccessPoint;
	samp->DTS = entry->w_sample->TransmissionTime;
	//get the sample
	BS_GetContent(bs, (unsigned char **) &samp->data, &samp->dataLength);
	DeleteBitStream(bs);

	//finally add the sample 
	e = M4_AddSample(the_file, trackNumber, trak->Media->information->sampleTable->currentEntryIndex, samp);
	M4_DeleteSample(&samp);

	//and delete the sample in our entry ...
	Del_HintSample(entry->w_sample);
	entry->w_sample = NULL;
	return e;
}
コード例 #2
0
ファイル: hint_track.c プロジェクト: noelove/GPAC-old
//stores the hint sample in the file
//set IsRandomAccessPoint if you want to indicate that this is a random access point 
//in the stream
GF_Err gf_isom_end_hint_sample(GF_ISOFile *the_file, u32 trackNumber, u8 IsRandomAccessPoint)
{
	GF_TrackBox *trak;
	GF_HintSampleEntryBox *entry;
	u32 dataRefIndex;
	GF_Err e;
	GF_BitStream *bs;
	GF_ISOSample *samp;

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

	e = Media_GetSampleDesc(trak->Media, trak->Media->information->sampleTable->currentEntryIndex, (GF_SampleEntryBox **) &entry, &dataRefIndex);
	if (e) return e;
	if (!entry->hint_sample) return GF_BAD_PARAM;

	//first of all, we need to adjust the offset for data referenced IN THIS hint sample
	//and get some PckSize
	e = AdjustHintInfo(entry, trak->Media->information->sampleTable->SampleSize->sampleCount + 1);
	if (e) return e;	
	
	//ok, let's write the sample
	bs = gf_bs_new(NULL, 0, GF_BITSTREAM_WRITE);
	e = gf_isom_hint_sample_write(entry->hint_sample, bs);
	if (e) {
		gf_bs_del(bs);
		return e;
	}
	samp = gf_isom_sample_new();
	samp->CTS_Offset = 0;
	samp->IsRAP = IsRandomAccessPoint;
	samp->DTS = entry->hint_sample->TransmissionTime;
	//get the sample
	gf_bs_get_content(bs, &samp->data, &samp->dataLength);
	gf_bs_del(bs);

	//finally add the sample 
	e = gf_isom_add_sample(the_file, trackNumber, trak->Media->information->sampleTable->currentEntryIndex, samp);
	gf_isom_sample_del(&samp);

	//and delete the sample in our entry ...
	gf_isom_hint_sample_del(entry->hint_sample);
	entry->hint_sample = NULL;
	return e;
}