public static boolean isTranscodeRequired(TranscodeProfile profile, VideoStream stream) {
if (!isSupported(profile.getCodecs(), stream.getCodec())) {
return true;
}
// Check bitrate
if (profile.getMaxBitRate() != null) {
if (profile.getMediaElement().getBitrate() > profile.getMaxBitRate()) {
return true;
}
}
// If direct play is not enabled check stream parameters
if (!profile.isDirectPlayEnabled()) {
// Check bitrate
if (profile.getMediaElement().getBitrate()
> VIDEO_QUALITY_MAX_BITRATE[profile.getQuality()]) {
return true;
}
// Check resolution
if (compareDimensions(
new Dimension(stream.getWidth(), stream.getHeight()),
VIDEO_QUALITY_RESOLUTION[profile.getQuality()])
== 1) {
return true;
}
}
return false;
}
public static boolean processVideo(TranscodeProfile profile) {
// Check variables
if (profile.getMediaElement() == null
|| profile.getCodecs() == null
|| profile.getFormat() == null
|| profile.getQuality() == null) {
return false;
}
// Check this is a video element
if (profile.getMediaElement().getType() != MediaElementType.VIDEO) {
return false;
}
// Variables
String codec = null;
Dimension resolution = null;
boolean transcodeRequired = false;
VideoStream stream = profile.getMediaElement().getVideoStream();
if (stream == null) {
return false;
}
// Check if subtitles require transcode
if (profile.getSubtitleTrack() != null && profile.getSubtitleTranscodes() != null) {
if (profile.getSubtitleTranscodes()[profile.getSubtitleTrack()].isHardcoded()) {
transcodeRequired = true;
}
}
// Test if transcoding is necessary
if (!transcodeRequired) {
transcodeRequired = isTranscodeRequired(profile, stream);
}
// Test that the codec is supported by the given format
if (!transcodeRequired) {
transcodeRequired = !isSupported(getCodecsForFormat(profile.getFormat()), stream.getCodec());
}
if (transcodeRequired) {
// Get suitable codec
for (String test : profile.getCodecs()) {
if (isSupported(getCodecsForFormat(profile.getFormat()), test)
&& isSupported(TRANSCODE_VIDEO_CODECS, test)) {
codec = test;
break;
}
}
// Check we got a suitable codec
if (codec == null) {
return false;
}
// Get suitable resolution (use native resolution if direct play is enabled)
if (!profile.isDirectPlayEnabled()) {
resolution = getVideoResolution(profile);
}
} else {
codec = "copy";
}
// Update profile with video transcode properties
profile.setVideoTranscode(new VideoTranscode(codec, resolution));
return true;
}