70 lines
2.9 KiB
Java
70 lines
2.9 KiB
Java
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package eu.siacs.conversations.utils;
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import android.media.MediaCodecInfo;
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import android.media.MediaFormat;
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import android.util.Log;
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import net.ypresto.androidtranscoder.format.MediaFormatExtraConstants;
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import net.ypresto.androidtranscoder.format.MediaFormatStrategy;
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import net.ypresto.androidtranscoder.format.OutputFormatUnavailableException;
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import eu.siacs.conversations.Config;
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public class Android480pFormatStrategy implements MediaFormatStrategy {
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private static final int LONGER_LENGTH = 854;
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private static final int SHORTER_LENGTH = 480;
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private static final int DEFAULT_VIDEO_BITRATE = 2000 * 1000; // 2000 kbit/s upper range of what YouTube recommends
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private static final int DEFAULT_AUDIO_BITRATE = 96 * 1000;
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private final int mVideoBitrate;
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private final int mAudioBitrate;
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private final int mAudioChannels;
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public Android480pFormatStrategy() {
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mVideoBitrate = DEFAULT_VIDEO_BITRATE;
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mAudioBitrate = DEFAULT_AUDIO_BITRATE;
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mAudioChannels = 2;
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}
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@Override
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public MediaFormat createVideoOutputFormat(MediaFormat inputFormat) {
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int width = inputFormat.getInteger(MediaFormat.KEY_WIDTH);
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int height = inputFormat.getInteger(MediaFormat.KEY_HEIGHT);
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int longer, shorter, outWidth, outHeight;
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if (width >= height) {
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longer = width;
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shorter = height;
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outWidth = LONGER_LENGTH;
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outHeight = SHORTER_LENGTH;
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} else {
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shorter = width;
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longer = height;
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outWidth = SHORTER_LENGTH;
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outHeight = LONGER_LENGTH;
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}
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if (longer * 9 != shorter * 16) {
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throw new OutputFormatUnavailableException("This video is not 16:9, and is not able to transcode. (" + width + "x" + height + ")");
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}
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if (shorter <= SHORTER_LENGTH) {
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Log.d(Config.LOGTAG, "This video is less or equal to 360p, pass-through. (" + width + "x" + height + ")");
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return null;
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}
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MediaFormat format = MediaFormat.createVideoFormat("video/avc", outWidth, outHeight);
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// From Nexus 4 Camera in 720p
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format.setInteger(MediaFormat.KEY_BIT_RATE, mVideoBitrate);
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format.setInteger(MediaFormat.KEY_FRAME_RATE, 30);
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format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 3);
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format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
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return format;
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}
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@Override
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public MediaFormat createAudioOutputFormat(MediaFormat inputFormat) {
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final MediaFormat format = MediaFormat.createAudioFormat(MediaFormatExtraConstants.MIMETYPE_AUDIO_AAC, inputFormat.getInteger(MediaFormat.KEY_SAMPLE_RATE), mAudioChannels);
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format.setInteger(MediaFormat.KEY_AAC_PROFILE, MediaCodecInfo.CodecProfileLevel.AACObjectLC);
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format.setInteger(MediaFormat.KEY_BIT_RATE, mAudioBitrate);
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return format;
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}
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}
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