M4Err Media_AddSample(MediaAtom *mdia, u64 data_offset, M4Sample *sample, u32 StreamDescIndex, u32 syncShadowNumber)
{
M4Err e;
SampleTableAtom *stbl;
u32 sampleNumber, i;
if (!mdia || !sample) return M4BadParam;
stbl = mdia->information->sampleTable;
//get a valid sampleNumber for this new guy
e = stbl_AddDTS(stbl, sample->DTS, &sampleNumber, mdia->mediaHeader->timeScale);
if (e) return e;
//add size
e = stbl_AddSize(stbl->SampleSize, sampleNumber, sample->dataLength);
if (e) return e;
//adds CTS offset
if (sample->CTS_Offset) {
//if we don't have a CTS table, add it...
if (!stbl->CompositionOffset) stbl->CompositionOffset = (CompositionOffsetAtom *) CreateAtom(CompositionOffsetAtomType);
//then add our CTS (the prev samples with no CTS offset will be automatically added...
e = stbl_AddCTS(stbl, sampleNumber, sample->CTS_Offset);
if (e) return e;
} else if (stbl->CompositionOffset) {
e = stbl_AddCTS(stbl, sampleNumber, sample->CTS_Offset);
if (e) return e;
}
//The first non sync sample we see must create a syncTable
if (sample->IsRAP) {
//insert it only if we have a sync table
if (stbl->SyncSample) {
e = stbl_AddRAP(stbl->SyncSample, sampleNumber);
if (e) return e;
}
} else {
//non-sync sample. Create a SyncSample table if needed
if (!stbl->SyncSample) {
stbl->SyncSample = (SyncSampleAtom *) CreateAtom(SyncSampleAtomType);
//all the prev samples are sync
for (i=0; i<stbl->SampleSize->sampleCount; i++) {
if (i+1 != sampleNumber) {
e = stbl_AddRAP(stbl->SyncSample, i+1);
if (e) return e;
}
}
}
}
//and update the chunks
e = stbl_AddChunkOffset(mdia, sampleNumber, StreamDescIndex, data_offset);
if (e) return e;
if (!syncShadowNumber) return M4OK;
if (!stbl->ShadowSync) stbl->ShadowSync = (ShadowSyncAtom *) CreateAtom(ShadowSyncAtomType);
return stbl_AddShadow(mdia->information->sampleTable->ShadowSync, sampleNumber, syncShadowNumber);
}
GF_Err Media_AddSample(GF_MediaBox *mdia, u64 data_offset, GF_ISOSample *sample, u32 StreamDescIndex, u32 syncShadowNumber)
{
GF_Err e;
GF_SampleTableBox *stbl;
u32 sampleNumber, i;
if (!mdia || !sample) return GF_BAD_PARAM;
stbl = mdia->information->sampleTable;
//get a valid sampleNumber for this new guy
e = stbl_AddDTS(stbl, sample->DTS, &sampleNumber, mdia->mediaHeader->timeScale);
if (e) return e;
//add size
e = stbl_AddSize(stbl->SampleSize, sampleNumber, sample->dataLength);
if (e) return e;
//adds CTS offset
if (sample->CTS_Offset) {
//if we don't have a CTS table, add it...
if (!stbl->CompositionOffset) stbl->CompositionOffset = (GF_CompositionOffsetBox *) gf_isom_box_new(GF_ISOM_BOX_TYPE_CTTS);
//then add our CTS (the prev samples with no CTS offset will be automatically added...
e = stbl_AddCTS(stbl, sampleNumber, sample->CTS_Offset);
if (e) return e;
} else if (stbl->CompositionOffset) {
e = stbl_AddCTS(stbl, sampleNumber, sample->CTS_Offset);
if (e) return e;
}
//The first non sync sample we see must create a syncTable
if (sample->IsRAP) {
//insert it only if we have a sync table
if (stbl->SyncSample) {
e = stbl_AddRAP(stbl->SyncSample, sampleNumber);
if (e) return e;
}
} else {
//non-sync sample. Create a SyncSample table if needed
if (!stbl->SyncSample) {
stbl->SyncSample = (GF_SyncSampleBox *) gf_isom_box_new(GF_ISOM_BOX_TYPE_STSS);
//all the prev samples are sync
for (i=0; i<stbl->SampleSize->sampleCount; i++) {
if (i+1 != sampleNumber) {
e = stbl_AddRAP(stbl->SyncSample, i+1);
if (e) return e;
}
}
}
}
if (sample->IsRAP==2) {
e = stbl_AddRedundant(stbl, sampleNumber);
if (e) return e;
}
//and update the chunks
e = stbl_AddChunkOffset(mdia, sampleNumber, StreamDescIndex, data_offset);
if (e) return e;
if (!syncShadowNumber) return GF_OK;
if (!stbl->ShadowSync) stbl->ShadowSync = (GF_ShadowSyncBox *) gf_isom_box_new(GF_ISOM_BOX_TYPE_STSH);
return stbl_AddShadow(mdia->information->sampleTable->ShadowSync, sampleNumber, syncShadowNumber);
}
