C++ (Cpp) AP4_StcoAtom示例

示例#1

/*----------------------------------------------------------------------
|   AP4_TrakAtom::SetChunkOffsets
+---------------------------------------------------------------------*/
AP4_Result
AP4_TrakAtom::SetChunkOffsets(const AP4_Array<AP4_UI64>& chunk_offsets)
{
    AP4_Atom* atom;
    if ((atom = FindChild("mdia/minf/stbl/stco"))) {
        AP4_StcoAtom* stco = dynamic_cast<AP4_StcoAtom*>(atom);
        if (stco == NULL) return AP4_ERROR_INTERNAL;
        AP4_Cardinal stco_chunk_count   = stco->GetChunkCount();
        AP4_UI32*    stco_chunk_offsets = stco->GetChunkOffsets();
        if (stco_chunk_count > chunk_offsets.ItemCount()) {
            return AP4_ERROR_OUT_OF_RANGE;
        }
        for (unsigned int i=0; i<stco_chunk_count; i++) {
            stco_chunk_offsets[i] = (AP4_UI32)chunk_offsets[i];
        }
        return AP4_SUCCESS;
    } else if ((atom = FindChild("mdia/minf/stbl/co64"))) {
        AP4_Co64Atom* co64 = dynamic_cast<AP4_Co64Atom*>(atom);
        if (co64 == NULL) return AP4_ERROR_INTERNAL;
        AP4_Cardinal co64_chunk_count   = co64->GetChunkCount();
        AP4_UI64*    co64_chunk_offsets = co64->GetChunkOffsets();
        if (co64_chunk_count > chunk_offsets.ItemCount()) {
            return AP4_ERROR_OUT_OF_RANGE;
        }
        for (unsigned int i=0; i<co64_chunk_count; i++) {
            co64_chunk_offsets[i] = chunk_offsets[i];
        }
        return AP4_SUCCESS;
    } else {
        return AP4_ERROR_INVALID_STATE;
    }
}

示例#2

文件： Ap4TrakAtom.cpp 项目： olegloa/wkrj

/*----------------------------------------------------------------------
|   AP4_TrakAtom::GetChunkOffsets
+---------------------------------------------------------------------*/
AP4_Result
AP4_TrakAtom::GetChunkOffsets(AP4_Array<AP4_UI64>& chunk_offsets)
{
    AP4_Atom* atom;
    if ((atom = FindChild("mdia/minf/stbl/stco"))) {
        AP4_StcoAtom* stco = AP4_DYNAMIC_CAST(AP4_StcoAtom, atom);
        if (stco == NULL) return AP4_ERROR_INTERNAL;
        AP4_Cardinal    stco_chunk_count   = stco->GetChunkCount();
        const AP4_UI32* stco_chunk_offsets = stco->GetChunkOffsets();
        chunk_offsets.SetItemCount(stco_chunk_count);
        for (unsigned int i=0; i<stco_chunk_count; i++) {
            chunk_offsets[i] = stco_chunk_offsets[i];
        }
        return AP4_SUCCESS;
    } else if ((atom = FindChild("mdia/minf/stbl/co64"))) {
        AP4_Co64Atom* co64 = AP4_DYNAMIC_CAST(AP4_Co64Atom, atom);
        if (co64 == NULL) return AP4_ERROR_INTERNAL;
        AP4_Cardinal    co64_chunk_count   = co64->GetChunkCount();
        const AP4_UI64* co64_chunk_offsets = co64->GetChunkOffsets();
        chunk_offsets.SetItemCount(co64_chunk_count);
        for (unsigned int i=0; i<co64_chunk_count; i++) {
            chunk_offsets[i] = co64_chunk_offsets[i];
        }
        return AP4_SUCCESS;
    } else {
        return AP4_ERROR_INVALID_STATE;
    }
}

示例#3

/*----------------------------------------------------------------------
|   AP4_TrakAtom::AdjustChunkOffsets
+---------------------------------------------------------------------*/
AP4_Result    
AP4_TrakAtom::AdjustChunkOffsets(AP4_SI64 delta)
{
    AP4_Atom* atom;
    if ((atom = FindChild("mdia/minf/stbl/stco"))) {    
        AP4_StcoAtom* stco = dynamic_cast<AP4_StcoAtom*>(atom);
        return stco->AdjustChunkOffsets((int)delta);
    } else if ((atom = FindChild("mdia/minf/stbl/co64"))) {
        AP4_Co64Atom* co64 = dynamic_cast<AP4_Co64Atom*>(atom);
        return co64->AdjustChunkOffsets(delta);
    } else {
        return AP4_ERROR_INVALID_STATE;
    }
}

示例#4

文件： Ap4TrakAtom.cpp 项目： 334151798/dwindow

/*----------------------------------------------------------------------
|       AP4_TrakAtom::AdjustChunkOffsets
+---------------------------------------------------------------------*/
AP4_Result    
AP4_TrakAtom::AdjustChunkOffsets(AP4_Offset offset)
{
    if (AP4_Atom* atom = FindChild("mdia/minf/stbl/co64")) {
        AP4_Co64Atom* co64 = dynamic_cast<AP4_Co64Atom*>(atom);
        co64->AdjustChunkOffsets(offset);
	}

    AP4_Atom* atom = FindChild("mdia/minf/stbl/stco");
    if (atom != NULL) {
        AP4_StcoAtom* stco = dynamic_cast<AP4_StcoAtom*>(atom);
        stco->AdjustChunkOffsets(offset);
        return AP4_SUCCESS;
    } else {
        return AP4_FAILURE;
    }
}

示例#5

文件： Ap4TrakAtom.cpp 项目： olegloa/wkrj

/*----------------------------------------------------------------------
|   AP4_TrakAtom::SetChunkOffsets
+---------------------------------------------------------------------*/
AP4_Result
AP4_TrakAtom::SetChunkOffsets(const AP4_Array<AP4_UI64>& chunk_offsets)
{
    AP4_Atom* atom;
    if ((atom = FindChild("mdia/minf/stbl/stco"))) {
        AP4_StcoAtom* stco = AP4_DYNAMIC_CAST(AP4_StcoAtom, atom);
        if (stco == NULL) return AP4_ERROR_INTERNAL;
        AP4_Cardinal stco_chunk_count   = stco->GetChunkCount();
        AP4_UI32*    stco_chunk_offsets = stco->GetChunkOffsets();
        if (stco_chunk_count > chunk_offsets.ItemCount()) {
            return AP4_ERROR_OUT_OF_RANGE;
        }
        for (unsigned int i=0; i<stco_chunk_count; i++) {
        	AP4_ASSERT(!(chunk_offsets[i] >> 32));
            stco_chunk_offsets[i] = (AP4_UI32)chunk_offsets[i];
        }
        return AP4_SUCCESS;
    } else if ((atom = FindChild("mdia/minf/stbl/co64"))) {