INNER CODE UNIT · Java

selectAudioTrack

microshow/RxFFmpeg · rxffmpeg/src/main/java/io/microshow/rxffmpeg/AudioVideoUtils.java:62

    public static int selectAudioTrack(MediaExtractor extractor) {
        int numTracks = extractor.getTrackCount();
        for (int i = 0; i < numTracks; i++) {
            MediaFormat format = extractor.getTrackFormat(i);
            String mime = format.getString(MediaFormat.KEY_MIME);
            if (mime.startsWith("audio/")) {
//                Log.d(TAG, "Extractor selected track " + i + " (" + mime + "): " + format);
                return i;
            }
        }
        return -1;
    }

    /**
     * 获取视频信息 时长 微秒 us
     *
     * @param url
     * @return

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