@Override public int readSample(int track, SampleHolder sampleHolder) throws IOException { if (sampleHolder.data == null) { sampleHolder.size = 0; return SampleSource.SAMPLE_READ; } if (!ffReadSample(pFormatCtx, sampleHolder)) { return SampleSource.NOTHING_READ; } // Log.d(TAG, "PTS: " + sampleHolder.timeUs); // Log.d(TAG, "frame start: " + sampleHolder.data.getInt(1)); return SampleSource.SAMPLE_READ; }