/
RtpVp8ReaderTest.java
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/
RtpVp8ReaderTest.java
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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.exoplayer2.source.rtsp.reader;
import static com.google.android.exoplayer2.util.Util.getBytesFromHexString;
import static com.google.common.truth.Truth.assertThat;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import com.google.android.exoplayer2.C;
import com.google.android.exoplayer2.Format;
import com.google.android.exoplayer2.source.rtsp.RtpPacket;
import com.google.android.exoplayer2.source.rtsp.RtpPayloadFormat;
import com.google.android.exoplayer2.testutil.FakeExtractorOutput;
import com.google.android.exoplayer2.testutil.FakeTrackOutput;
import com.google.android.exoplayer2.util.MimeTypes;
import com.google.android.exoplayer2.util.ParsableByteArray;
import com.google.android.exoplayer2.util.Util;
import com.google.common.collect.ImmutableMap;
import com.google.common.primitives.Bytes;
import java.util.Arrays;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
/** Unit test for {@link RtpVp8Reader}. */
@RunWith(AndroidJUnit4.class)
public final class RtpVp8ReaderTest {
/** VP9 uses a 90 KHz media clock (RFC7741 Section 4.1). */
private static final long MEDIA_CLOCK_FREQUENCY = 90_000;
private static final byte[] PARTITION_1 = getBytesFromHexString("000102030405060708090A0B0C0D0E");
// 000102030405060708090A
private static final byte[] PARTITION_1_FRAGMENT_1 =
Arrays.copyOf(PARTITION_1, /* newLength= */ 11);
// 0B0C0D0E
private static final byte[] PARTITION_1_FRAGMENT_2 =
Arrays.copyOfRange(PARTITION_1, /* from= */ 11, /* to= */ 15);
private static final long PARTITION_1_RTP_TIMESTAMP = 2599168056L;
private static final RtpPacket PACKET_PARTITION_1_FRAGMENT_1 =
new RtpPacket.Builder()
.setTimestamp(PARTITION_1_RTP_TIMESTAMP)
.setSequenceNumber(40289)
.setMarker(false)
.setPayloadData(Bytes.concat(getBytesFromHexString("10"), PARTITION_1_FRAGMENT_1))
.build();
private static final RtpPacket PACKET_PARTITION_1_FRAGMENT_2 =
new RtpPacket.Builder()
.setTimestamp(PARTITION_1_RTP_TIMESTAMP)
.setSequenceNumber(40290)
.setMarker(false)
.setPayloadData(Bytes.concat(getBytesFromHexString("00"), PARTITION_1_FRAGMENT_2))
.build();
private static final byte[] PARTITION_2 = getBytesFromHexString("0D0C0B0A09080706050403020100");
// 0D0C0B0A090807060504
private static final byte[] PARTITION_2_FRAGMENT_1 =
Arrays.copyOf(PARTITION_2, /* newLength= */ 10);
// 03020100
private static final byte[] PARTITION_2_FRAGMENT_2 =
Arrays.copyOfRange(PARTITION_2, /* from= */ 10, /* to= */ 14);
private static final long PARTITION_2_RTP_TIMESTAMP = 2599168344L;
private static final RtpPacket PACKET_PARTITION_2_FRAGMENT_1 =
new RtpPacket.Builder()
.setTimestamp(PARTITION_2_RTP_TIMESTAMP)
.setSequenceNumber(40291)
.setMarker(false)
.setPayloadData(Bytes.concat(getBytesFromHexString("10"), PARTITION_2_FRAGMENT_1))
.build();
private static final RtpPacket PACKET_PARTITION_2_FRAGMENT_2 =
new RtpPacket.Builder()
.setTimestamp(PARTITION_2_RTP_TIMESTAMP)
.setSequenceNumber(40292)
.setMarker(true)
.setPayloadData(
Bytes.concat(
getBytesFromHexString("80"),
// Optional header.
getBytesFromHexString("D6AA953961"),
PARTITION_2_FRAGMENT_2))
.build();
private static final long PARTITION_2_PRESENTATION_TIMESTAMP_US =
Util.scaleLargeTimestamp(
(PARTITION_2_RTP_TIMESTAMP - PARTITION_1_RTP_TIMESTAMP),
/* multiplier= */ C.MICROS_PER_SECOND,
/* divisor= */ MEDIA_CLOCK_FREQUENCY);
private FakeExtractorOutput extractorOutput;
@Before
public void setUp() {
extractorOutput =
new FakeExtractorOutput(
(id, type) -> new FakeTrackOutput(/* deduplicateConsecutiveFormats= */ true));
}
@Test
public void consume_validPackets() {
RtpVp8Reader vp8Reader = createVp8Reader();
vp8Reader.createTracks(extractorOutput, /* trackId= */ 0);
vp8Reader.onReceivingFirstPacket(
PACKET_PARTITION_1_FRAGMENT_1.timestamp, PACKET_PARTITION_1_FRAGMENT_1.sequenceNumber);
consume(vp8Reader, PACKET_PARTITION_1_FRAGMENT_1);
consume(vp8Reader, PACKET_PARTITION_1_FRAGMENT_2);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_1);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_2);
FakeTrackOutput trackOutput = extractorOutput.trackOutputs.get(0);
assertThat(trackOutput.getSampleCount()).isEqualTo(2);
assertThat(trackOutput.getSampleData(0)).isEqualTo(PARTITION_1);
assertThat(trackOutput.getSampleTimeUs(0)).isEqualTo(0);
assertThat(trackOutput.getSampleData(1)).isEqualTo(PARTITION_2);
assertThat(trackOutput.getSampleTimeUs(1)).isEqualTo(PARTITION_2_PRESENTATION_TIMESTAMP_US);
}
@Test
public void consume_fragmentedFrameMissingFirstFragment() {
RtpVp8Reader vp8Reader = createVp8Reader();
vp8Reader.createTracks(extractorOutput, /* trackId= */ 0);
// First packet timing information is transmitted over RTSP, not RTP.
vp8Reader.onReceivingFirstPacket(
PACKET_PARTITION_1_FRAGMENT_1.timestamp, PACKET_PARTITION_1_FRAGMENT_1.sequenceNumber);
consume(vp8Reader, PACKET_PARTITION_1_FRAGMENT_2);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_1);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_2);
FakeTrackOutput trackOutput = extractorOutput.trackOutputs.get(0);
assertThat(trackOutput.getSampleCount()).isEqualTo(1);
assertThat(trackOutput.getSampleData(0)).isEqualTo(PARTITION_2);
assertThat(trackOutput.getSampleTimeUs(0)).isEqualTo(PARTITION_2_PRESENTATION_TIMESTAMP_US);
}
@Test
public void consume_fragmentedFrameMissingBoundaryFragment() {
RtpVp8Reader vp8Reader = createVp8Reader();
vp8Reader.createTracks(extractorOutput, /* trackId= */ 0);
vp8Reader.onReceivingFirstPacket(
PACKET_PARTITION_1_FRAGMENT_1.timestamp, PACKET_PARTITION_1_FRAGMENT_1.sequenceNumber);
consume(vp8Reader, PACKET_PARTITION_1_FRAGMENT_1);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_1);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_2);
FakeTrackOutput trackOutput = extractorOutput.trackOutputs.get(0);
assertThat(trackOutput.getSampleCount()).isEqualTo(2);
assertThat(trackOutput.getSampleData(0)).isEqualTo(PARTITION_1_FRAGMENT_1);
assertThat(trackOutput.getSampleTimeUs(0)).isEqualTo(0);
assertThat(trackOutput.getSampleData(1)).isEqualTo(PARTITION_2);
assertThat(trackOutput.getSampleTimeUs(1)).isEqualTo(PARTITION_2_PRESENTATION_TIMESTAMP_US);
}
@Test
public void consume_outOfOrderFragmentedFrame() {
RtpVp8Reader vp8Reader = createVp8Reader();
vp8Reader.createTracks(extractorOutput, /* trackId= */ 0);
vp8Reader.onReceivingFirstPacket(
PACKET_PARTITION_1_FRAGMENT_1.timestamp, PACKET_PARTITION_1_FRAGMENT_1.sequenceNumber);
consume(vp8Reader, PACKET_PARTITION_1_FRAGMENT_1);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_1);
consume(vp8Reader, PACKET_PARTITION_1_FRAGMENT_2);
consume(vp8Reader, PACKET_PARTITION_2_FRAGMENT_2);
FakeTrackOutput trackOutput = extractorOutput.trackOutputs.get(0);
assertThat(trackOutput.getSampleCount()).isEqualTo(2);
assertThat(trackOutput.getSampleData(0)).isEqualTo(PARTITION_1_FRAGMENT_1);
assertThat(trackOutput.getSampleTimeUs(0)).isEqualTo(0);
assertThat(trackOutput.getSampleData(1)).isEqualTo(PARTITION_2);
assertThat(trackOutput.getSampleTimeUs(1)).isEqualTo(PARTITION_2_PRESENTATION_TIMESTAMP_US);
}
private static RtpVp8Reader createVp8Reader() {
return new RtpVp8Reader(
new RtpPayloadFormat(
new Format.Builder().setSampleMimeType(MimeTypes.VIDEO_VP8).build(),
/* rtpPayloadType= */ 96,
/* clockRate= */ (int) MEDIA_CLOCK_FREQUENCY,
/* fmtpParameters= */ ImmutableMap.of()));
}
private static void consume(RtpVp8Reader vp8Reader, RtpPacket rtpPacket) {
vp8Reader.consume(
new ParsableByteArray(rtpPacket.payloadData),
rtpPacket.timestamp,
rtpPacket.sequenceNumber,
rtpPacket.marker);
}
}