M4Err UpdateSample(MediaAtom *mdia, u32 sampleNumber, u32 size, u32 CTS, u64 offset, u8 isRap)
{
u32 i;
SampleTableAtom *stbl = mdia->information->sampleTable;
//set size, offset, RAP, CTS ...
stbl_SetSampleSize(stbl->SampleSize, sampleNumber, size);
stbl_SetChunkOffset(mdia, sampleNumber, offset);
//do we have a CTS?
if (stbl->CompositionOffset) {
stbl_SetSampleCTS(stbl, sampleNumber, CTS);
} else {
//do we need one ??
if (CTS) {
stbl->CompositionOffset = (CompositionOffsetAtom *) CreateAtom(CompositionOffsetAtomType);
stbl_AddCTS(stbl, sampleNumber, CTS);
}
}
//do we have a sync ???
if (stbl->SyncSample) {
stbl_SetSampleRAP(stbl->SyncSample, sampleNumber, isRap);
} else {
//do we need one
if (! isRap) {
stbl->SyncSample = (SyncSampleAtom *) CreateAtom(SyncSampleAtomType);
//what a pain: all the sample we had have to be sync ...
for (i=0; i<stbl->SampleSize->sampleCount; i++) {
if (i+1 != sampleNumber) stbl_AddRAP(stbl->SyncSample, i+1);
}
}
}
return M4OK;
}
GF_Err Media_UpdateSample(GF_MediaBox *mdia, u32 sampleNumber, GF_ISOSample *sample, Bool data_only)
{
GF_Err e;
u32 drefIndex, chunkNum, descIndex;
u64 newOffset, DTS;
u8 isEdited;
GF_DataEntryURLBox *Dentry;
GF_SampleTableBox *stbl;
if (!mdia || !sample || !sampleNumber || !mdia->mediaTrack->moov->mov->editFileMap)
return GF_BAD_PARAM;
stbl = mdia->information->sampleTable;
if (!data_only) {
//check we have the sampe dts
e = stbl_GetSampleDTS(stbl->TimeToSample, sampleNumber, &DTS);
if (e) return e;
if (DTS != sample->DTS) return GF_BAD_PARAM;
}
//get our infos
stbl_GetSampleInfos(stbl, sampleNumber, &newOffset, &chunkNum, &descIndex, &isEdited);
//then check the data ref
e = Media_GetSampleDesc(mdia, descIndex, NULL, &drefIndex);
if (e) return e;
Dentry = (GF_DataEntryURLBox*)gf_list_get(mdia->information->dataInformation->dref->other_boxes, drefIndex - 1);
if (!Dentry) return GF_ISOM_INVALID_FILE;
if (Dentry->flags != 1) return GF_BAD_PARAM;
//MEDIA DATA EDIT: write this new sample to the edit temp file
newOffset = gf_isom_datamap_get_offset(mdia->mediaTrack->moov->mov->editFileMap);
if (sample->dataLength) {
e = gf_isom_datamap_add_data(mdia->mediaTrack->moov->mov->editFileMap, sample->data, sample->dataLength);
if (e) return e;
}
if (data_only) {
stbl_SetSampleSize(stbl->SampleSize, sampleNumber, sample->dataLength);
return stbl_SetChunkOffset(mdia, sampleNumber, newOffset);
}
return UpdateSample(mdia, sampleNumber, sample->dataLength, sample->CTS_Offset, newOffset, sample->IsRAP);
}
GF_Err UpdateSample(GF_MediaBox *mdia, u32 sampleNumber, u32 size, u32 CTS, u64 offset, u8 isRap)
{
u32 i;
GF_SampleTableBox *stbl = mdia->information->sampleTable;
//set size, offset, RAP, CTS ...
stbl_SetSampleSize(stbl->SampleSize, sampleNumber, size);
stbl_SetChunkOffset(mdia, sampleNumber, offset);
//do we have a CTS?
if (stbl->CompositionOffset) {
stbl_SetSampleCTS(stbl, sampleNumber, CTS);
} else {
//do we need one ??
if (CTS) {
stbl->CompositionOffset = (GF_CompositionOffsetBox *) gf_isom_box_new(GF_ISOM_BOX_TYPE_CTTS);
stbl_AddCTS(stbl, sampleNumber, CTS);
}
}
//do we have a sync ???
if (stbl->SyncSample) {
stbl_SetSampleRAP(stbl->SyncSample, sampleNumber, isRap);
} else {
//do we need one
if (! isRap) {
stbl->SyncSample = (GF_SyncSampleBox *) gf_isom_box_new(GF_ISOM_BOX_TYPE_STSS);
//what a pain: all the sample we had have to be sync ...
for (i=0; i<stbl->SampleSize->sampleCount; i++) {
if (i+1 != sampleNumber) stbl_AddRAP(stbl->SyncSample, i+1);
}
}
}
if (isRap==2) {
stbl_SetRedundant(stbl, sampleNumber);
}
return GF_OK;
}