void
MediaPictureResamplerTest::writePicture(const char* prefix, int32_t* frameNo,
MediaPicture* picture,
MediaPictureResampler* resampler,
MediaPicture* resampled)
{
char filename[2048];
// resample the image from YUV to RGBA
resampler->resample(resampled, picture);
// write data as PGM file.
snprintf(filename, sizeof(filename), "%s-%06d.png", prefix, *frameNo);
// only write every n'th frame to save disk space
RefPointer<Buffer> buf = resampled->getData(0);
uint8_t* data = (uint8_t*)buf->getBytes(0, buf->getBufferSize());
if (!((*frameNo) % 30)) {
lodepng_encode32_file(filename, data, resampled->getWidth(), resampled->getHeight());
}
(*frameNo)++;
// check the frame metadata
RefPointer<KeyValueBag> md = picture->getMetaData();
if (md) {
int n = md->getNumKeys();
for(int i = 0; i < n; i++) {
const char* key = md->getKey(i);
const char* val = md->getValue(key, KeyValueBag::KVB_NONE);
fprintf(stderr, "%s : %s", key, val);
}
}
}
void
MetaDataTest :: testContainerGetMetaData()
{
Helper h;
h.setupReading("testfile.mp3");
RefPointer<IMetaData> meta = h.container->getMetaData();
VS_TUT_ENSURE("got meta data", meta);
if (meta) {
int32_t numKeys = meta->getNumKeys();
VS_TUT_ENSURE("should be right", numKeys >= 5);
VS_TUT_ENSURE("should be right", numKeys <= 7);
for(int32_t i = 0; i < numKeys; i++)
{
const char* key = meta->getKey(i);
VS_TUT_ENSURE("should be found", key);
VS_TUT_ENSURE("should be found", *key);
const char* value = meta->getValue(key, IMetaData::METADATA_NONE);
VS_TUT_ENSURE("should be found", value);
VS_TUT_ENSURE("should be found", *value);
}
}
}
void
MetaDataTest :: testFLVContainerGetMetaData()
{
Helper h;
return;
h.setupReading("testfile.flv");
RefPointer<IMetaData> meta = h.container->getMetaData();
VS_TUT_ENSURE("got meta data", meta);
if (meta) {
int32_t numKeys = meta->getNumKeys();
if (numKeys > 0) { // using FFmpeg with a patch for FLV meta-data reading
VS_TUT_ENSURE_EQUALS("should be right", numKeys, 11);
for(int32_t i = 0; i < numKeys; i++)
{
const char* key = meta->getKey(i);
VS_TUT_ENSURE("should be found", key);
VS_TUT_ENSURE("should be found", *key);
const char* value = meta->getValue(key, IMetaData::METADATA_NONE);
VS_TUT_ENSURE("should be found", value);
VS_TUT_ENSURE("should be found", *value);
}
}
}
}