本文整理汇总了C++中BMediaTrack::SetQuality方法的典型用法代码示例。如果您正苦于以下问题：C++ BMediaTrack::SetQuality方法的具体用法？C++ BMediaTrack::SetQuality怎么用？C++ BMediaTrack::SetQuality使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BMediaTrack的用法示例。
在下文中一共展示了BMediaTrack::SetQuality方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: sizeof
status_t
MediaConverterApp::_ConvertFile(BMediaFile* inFile, BMediaFile* outFile,
media_codec_info* audioCodec, media_codec_info* videoCodec,
int32 audioQuality, int32 videoQuality,
bigtime_t startDuration, bigtime_t endDuration)
{
BMediaTrack* inVidTrack = NULL;
BMediaTrack* inAudTrack = NULL;
BMediaTrack* outVidTrack = NULL;
BMediaTrack* outAudTrack = NULL;
media_format inFormat;
media_format outAudFormat;
media_format outVidFormat;
media_raw_audio_format* raf = NULL;
media_raw_video_format* rvf = NULL;
int32 width = -1;
int32 height = -1;
uint8* videoBuffer = NULL;
uint8* audioBuffer = NULL;
// gather the necessary format information and construct output tracks
int64 videoFrameCount = 0;
int64 audioFrameCount = 0;
status_t ret = B_OK;
int32 tracks = inFile->CountTracks();
for (int32 i = 0; i < tracks && (!outAudTrack || !outVidTrack); i++) {
BMediaTrack* inTrack = inFile->TrackAt(i);
memset(&inFormat, 0, sizeof(media_format));
inTrack->EncodedFormat(&inFormat);
if (inFormat.IsAudio() && (audioCodec != NULL)) {
inAudTrack = inTrack;
memset(&outAudFormat, 0, sizeof(media_format));
outAudFormat.type = B_MEDIA_RAW_AUDIO;
raf = &(outAudFormat.u.raw_audio);
inTrack->DecodedFormat(&outAudFormat);
audioBuffer = new uint8[raf->buffer_size];
// audioFrameSize = (raf->format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
// audioFrameSize = (raf->format & 0xf) * raf->channel_count;
outAudTrack = outFile->CreateTrack(&outAudFormat, audioCodec);
if (outAudTrack != NULL) {
if (outAudTrack->SetQuality(audioQuality / 100.0f) != B_OK
&& fWin->Lock()) {
fWin->SetAudioQualityLabel(
B_TRANSLATE("Audio quality not supported"));
fWin->Unlock();
}
}
} else if (inFormat.IsVideo() && (videoCodec != NULL)) {
inVidTrack = inTrack;
width = (int32)inFormat.Width();
height = (int32)inFormat.Height();
// construct desired decoded video format
memset(&outVidFormat, 0, sizeof(outVidFormat));
outVidFormat.type = B_MEDIA_RAW_VIDEO;
rvf = &(outVidFormat.u.raw_video);
rvf->last_active = (uint32)(height - 1);
rvf->orientation = B_VIDEO_TOP_LEFT_RIGHT;
rvf->display.format = B_RGB32;
rvf->display.bytes_per_row = 4 * width;
rvf->display.line_width = width;
rvf->display.line_count = height;
inVidTrack->DecodedFormat(&outVidFormat);
if (rvf->display.format == B_RGBA32) {
printf("fixing color space (B_RGBA32 -> B_RGB32)");
rvf->display.format = B_RGB32;
}
// Transfer the display aspect ratio.
if (inFormat.type == B_MEDIA_ENCODED_VIDEO) {
rvf->pixel_width_aspect
= inFormat.u.encoded_video.output.pixel_width_aspect;
rvf->pixel_height_aspect
= inFormat.u.encoded_video.output.pixel_height_aspect;
} else {
rvf->pixel_width_aspect
= inFormat.u.raw_video.pixel_width_aspect;
rvf->pixel_height_aspect
= inFormat.u.raw_video.pixel_height_aspect;
}
videoBuffer = new (std::nothrow) uint8[height
* rvf->display.bytes_per_row];
outVidTrack = outFile->CreateTrack(&outVidFormat, videoCodec);
if (outVidTrack != NULL) {
// DLM Added to use 3ivx Parameter View
const char* videoQualitySupport = NULL;
BView* encoderView = outVidTrack->GetParameterView();
if (encoderView) {
//.........这里部分代码省略.........