/** Try different transcoded formats for concatenation. */
public boolean tryTranscode(
ProcInfo pInfo[], int procID, int type, int trackID, Format candidate) {
if (procID >= pInfo.length) return true;
boolean matched = false;
TrackControl tc = pInfo[procID].tracksByType[type][trackID].tc;
Format supported[] = tc.getSupportedFormats();
for (int i = 0; i < supported.length; i++) {
if (candidate.matches(supported[i])
&& tryTranscode(pInfo, procID + 1, type, trackID, candidate)) {
matched = true;
break;
}
}
return matched;
}
/** Try matching the data formats and find common ones for concatenation. */
public boolean tryMatch(ProcInfo pInfo[], int type, int trackID) {
TrackControl tc = pInfo[0].tracksByType[type][trackID].tc;
Format origFmt = tc.getFormat();
Format newFmt, oldFmt;
Format supported[] = tc.getSupportedFormats();
for (int i = 0; i < supported.length; i++) {
if (supported[i] instanceof AudioFormat) {
// If it's not the original format, then for audio, we'll
// only do linear since it's more accurate to compute the
// audio times.
if (!supported[i].matches(tc.getFormat())
&& !supported[i].getEncoding().equalsIgnoreCase(AudioFormat.LINEAR)) continue;
}
if (tryTranscode(pInfo, 1, type, trackID, supported[i])) {
// We've found the right format to transcode all the
// tracks to. We'll set it on the corresponding
// TrackControl on each processor.
for (int j = 0; j < pInfo.length; j++) {
tc = pInfo[j].tracksByType[type][trackID].tc;
oldFmt = tc.getFormat();
newFmt = supported[i];
// Check if it requires transcoding.
if (!oldFmt.matches(newFmt)) {
if (!transcodeMsg) {
transcodeMsg = true;
System.err.println(TRANSCODE_MSG);
}
System.err.println("- Transcoding: " + pInfo[j].ml);
System.err.println(" " + oldFmt);
System.err.println(" to:");
System.err.println(" " + newFmt);
}
// For video, check if it requires scaling.
if (oldFmt instanceof VideoFormat) {
Dimension newSize = ((VideoFormat) origFmt).getSize();
Dimension oldSize = ((VideoFormat) oldFmt).getSize();
if (oldSize != null && !oldSize.equals(newSize)) {
// It requires scaling.
if (!transcodeMsg) {
transcodeMsg = true;
System.err.println(TRANSCODE_MSG);
}
System.err.println("- Scaling: " + pInfo[j].ml);
System.err.println(" from: " + oldSize.width + " x " + oldSize.height);
System.err.println(" to: " + newSize.width + " x " + newSize.height);
newFmt =
(new VideoFormat(null, newSize, Format.NOT_SPECIFIED, null, Format.NOT_SPECIFIED))
.intersects(newFmt);
}
}
tc.setFormat(newFmt);
}
return true;
}
}
return false;
}
