/**
* Gets the <tt>MediaFormat</tt>s among the specified <tt>mediaFormats</tt> which have the
* specified <tt>encoding</tt> and, optionally, <tt>clockRate</tt>.
*
* @param mediaFormats the <tt>MediaFormat</tt>s from which to filter out only the ones which have
* the specified <tt>encoding</tt> and, optionally, <tt>clockRate</tt>
* @param encoding the well-known encoding (name) of the <tt>MediaFormat</tt>s to be retrieved
* @param clockRate the clock rate of the <tt>MediaFormat</tt>s to be retrieved; {@link
* #CLOCK_RATE_NOT_SPECIFIED} if any clock rate is acceptable
* @return a <tt>List</tt> of the <tt>MediaFormat</tt>s among <tt>mediaFormats</tt> which have the
* specified <tt>encoding</tt> and, optionally, <tt>clockRate</tt>
*/
private List<MediaFormat> getMatchingMediaFormats(
MediaFormat[] mediaFormats, String encoding, double clockRate) {
/*
* XXX Use String#equalsIgnoreCase(String) because some clients transmit
* some of the codecs starting with capital letters.
*/
/*
* As per RFC 3551.4.5.2, because of a mistake in RFC 1890 and for
* backward compatibility, G.722 should always be announced as 8000 even
* though it is wideband. So, if someone is looking for G722/16000,
* then: Forgive them, for they know not what they do!
*/
if ("G722".equalsIgnoreCase(encoding) && (16000 == clockRate)) {
clockRate = 8000;
if (logger.isInfoEnabled()) logger.info("Suppressing erroneous 16000 announcement for G.722");
}
List<MediaFormat> supportedMediaFormats = new ArrayList<MediaFormat>();
for (MediaFormat mediaFormat : mediaFormats) {
if (mediaFormat.getEncoding().equalsIgnoreCase(encoding)
&& ((CLOCK_RATE_NOT_SPECIFIED == clockRate)
|| (mediaFormat.getClockRate() == clockRate))) {
supportedMediaFormats.add(mediaFormat);
}
}
return supportedMediaFormats;
}
static {
bannedYuvCodecs = new ArrayList<String>();
// Banned H264 encoders/decoders
// Crashes
bannedYuvCodecs.add("OMX.SEC.avc.enc");
bannedYuvCodecs.add("OMX.SEC.h263.enc");
// Don't support 3.1 profile used by Jitsi
bannedYuvCodecs.add("OMX.Nvidia.h264.decode");
// bannedYuvCodecs.add("OMX.SEC.avc.dec");
// Banned VP8 encoders/decoders
bannedYuvCodecs.add("OMX.SEC.vp8.dec");
// This one works only for res 176x144
bannedYuvCodecs.add("OMX.google.vpx.encoder");
for (int codecIndex = 0, codecCount = MediaCodecList.getCodecCount();
codecIndex < codecCount;
codecIndex++) {
MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(codecIndex);
logger.info(
"Discovered codec: "
+ codecInfo.getName()
+ "/"
+ Arrays.toString(codecInfo.getSupportedTypes()));
CodecInfo ci = CodecInfo.getCodecInfo(codecInfo);
if (ci != null) {
codecs.add(ci);
ci.setBanned(bannedYuvCodecs.contains(ci.getName()));
}
}
logger.info("Selected H264 encoder: " + getCodecForType(MEDIA_CODEC_TYPE_H264, true));
logger.info("Selected H264 decoder: " + getCodecForType(MEDIA_CODEC_TYPE_H264, false));
logger.info("Selected H263 encoder: " + getCodecForType(MEDIA_CODEC_TYPE_H263, true));
logger.info("Selected H263 decoder: " + getCodecForType(MEDIA_CODEC_TYPE_H263, false));
logger.info("Selected VP8 encoder: " + getCodecForType(MEDIA_CODEC_TYPE_VP8, true));
logger.info("Selected VP8 decoder: " + getCodecForType(MEDIA_CODEC_TYPE_VP8, false));
}