src/mp4container.cpp

/*
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is MPEG4IP.
 *
 * The Initial Developer of the Original Code is Cisco Systems Inc.
 * Portions created by Cisco Systems Inc. are
 * Copyright (C) Cisco Systems Inc. 2001.  All Rights Reserved.
 *
 * Contributor(s):
 *      Dave Mackie     dmackie@cisco.com
 */

#include "src/impl.h"

namespace mp4v2 {
namespace impl {

///////////////////////////////////////////////////////////////////////////////

MP4Container::~MP4Container()
{
    for (uint32_t i = 0; i < m_pProperties.Size(); i++) {
        delete m_pProperties[i];
    }
}

void MP4Container::AddProperty(MP4Property* pProperty)
{
    ASSERT(pProperty);
    m_pProperties.Add(pProperty);
}

bool MP4Container::FindProperty(const char *name,
                                MP4Property** ppProperty, uint32_t* pIndex)
{
    if (pIndex) {
        *pIndex = 0;    // set the default answer for index
    }

    uint32_t numProperties = m_pProperties.Size();

    for (uint32_t i = 0; i < numProperties; i++) {
        if (m_pProperties[i]->FindProperty(name, ppProperty, pIndex)) {
            return true;
        }
    }
    return false;
}

void MP4Container::FindIntegerProperty(const char* name,
                                       MP4Property** ppProperty, uint32_t* pIndex)
{
    if (!FindProperty(name, ppProperty, pIndex)) {
        throw new Exception("no such property", __FILE__, __LINE__, __FUNCTION__);
    }

    switch ((*ppProperty)->GetType()) {
    case Integer8Property:
    case Integer16Property:
    case Integer24Property:
    case Integer32Property:
    case Integer64Property:
        break;
    default:
        throw new Exception("type mismatch", __FILE__, __LINE__, __FUNCTION__);
    }
}

uint64_t MP4Container::GetIntegerProperty(const char* name)
{
    MP4Property* pProperty;
    uint32_t index;

    FindIntegerProperty(name, &pProperty, &index);

    return ((MP4IntegerProperty*)pProperty)->GetValue(index);
}

void MP4Container::SetIntegerProperty(const char* name, uint64_t value)
{
    MP4Property* pProperty = NULL;
    uint32_t index = 0;

    FindIntegerProperty(name, &pProperty, &index);

    ((MP4IntegerProperty*)pProperty)->SetValue(value, index);
}

void MP4Container::FindFloatProperty(const char* name,
                                     MP4Property** ppProperty, uint32_t* pIndex)
{
    if (!FindProperty(name, ppProperty, pIndex)) {
        throw new Exception("no such property", __FILE__, __LINE__, __FUNCTION__);
    }
    if ((*ppProperty)->GetType() != Float32Property) {
        throw new Exception("type mismatch", __FILE__, __LINE__, __FUNCTION__);
    }
}

float MP4Container::GetFloatProperty(const char* name)
{
    MP4Property* pProperty;
    uint32_t index;

    FindFloatProperty(name, &pProperty, &index);

    return ((MP4Float32Property*)pProperty)->GetValue(index);
}

void MP4Container::SetFloatProperty(const char* name, float value)
{
    MP4Property* pProperty;
    uint32_t index;

    FindFloatProperty(name, &pProperty, &index);

    ((MP4Float32Property*)pProperty)->SetValue(value, index);
}

void MP4Container::FindStringProperty(const char* name,
                                      MP4Property** ppProperty, uint32_t* pIndex)
{
    if (!FindProperty(name, ppProperty, pIndex)) {
        throw new Exception("no such property", __FILE__, __LINE__, __FUNCTION__);
    }
    if ((*ppProperty)->GetType() != StringProperty) {
        throw new Exception("type mismatch", __FILE__, __LINE__, __FUNCTION__);
    }
}

const char* MP4Container::GetStringProperty(const char* name)
{
    MP4Property* pProperty;
    uint32_t index;

    FindStringProperty(name, &pProperty, &index);

    return ((MP4StringProperty*)pProperty)->GetValue(index);
}

void MP4Container::SetStringProperty(const char* name, const char* value)
{
    MP4Property* pProperty;
    uint32_t index;

    FindStringProperty(name, &pProperty, &index);

    ((MP4StringProperty*)pProperty)->SetValue(value, index);
}

void MP4Container::FindBytesProperty(const char* name,
                                     MP4Property** ppProperty, uint32_t* pIndex)
{
    if (!FindProperty(name, ppProperty, pIndex)) {
        throw new Exception("no such property", __FILE__, __LINE__, __FUNCTION__);
    }
    if ((*ppProperty)->GetType() != BytesProperty) {
        throw new Exception("type mismatch", __FILE__, __LINE__, __FUNCTION__);
    }
}

void MP4Container::GetBytesProperty(const char* name,
                                    uint8_t** ppValue, uint32_t* pValueSize)
{
    MP4Property* pProperty;
    uint32_t index;

    FindBytesProperty(name, &pProperty, &index);

    ((MP4BytesProperty*)pProperty)->GetValue(ppValue, pValueSize, index);
}

void MP4Container::SetBytesProperty(const char* name,
                                    const uint8_t* pValue, uint32_t valueSize)
{
    MP4Property* pProperty;
    uint32_t index;

    FindBytesProperty(name, &pProperty, &index);

    ((MP4BytesProperty*)pProperty)->SetValue(pValue, valueSize, index);
}

void MP4Container::Read(MP4File& file)
{
    uint32_t numProperties = m_pProperties.Size();

    for (uint32_t i = 0; i < numProperties; i++) {
        m_pProperties[i]->Read(file);
    }
}

void MP4Container::Write(MP4File& file)
{
    uint32_t numProperties = m_pProperties.Size();

    if (numProperties == 0) {
        WARNING(numProperties == 0);
        return;
    }

    for (uint32_t i = 0; i < numProperties; i++) {
        m_pProperties[i]->Write(file);
    }
}

void MP4Container::Dump(uint8_t indent, bool dumpImplicits)
{
    uint32_t numProperties = m_pProperties.Size();

    for (uint32_t i = 0; i < numProperties; i++) {
        m_pProperties[i]->Dump(indent, dumpImplicits);
    }
}

///////////////////////////////////////////////////////////////////////////////

}
} // namespace mp4v2::impl