loliball/media
1
0
Fork 0
mirror of https://github.com/androidx/media.git synced 2025-05-05 06:30:24 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add API to get the format from the file extension

Browse Source 
This will allow to use the file extension in DefaultExtractorsFactory.

PiperOrigin-RevId: 314296640
This commit is contained in:
kimvde 2020-06-02 10:58:37 +01:00 committed by Oliver Woodman
parent a5067e6314
commit 1f80cf1558
3 changed files with 256 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

172
library/common/src/main/java/com/google/android/exoplayer2/util/FilenameUtil.java Normal file
View File

@ -0,0 +1,172 @@
/*
* Copyright 2020 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.util;
import androidx.annotation.IntDef;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/** Filename related utility methods. */
public final class FilenameUtil {
/**
* File formats. One of {@link #FILE_FORMAT_UNKNOWN}, {@link #FILE_FORMAT_AC3}, {@link
* #FILE_FORMAT_AC4}, {@link #FILE_FORMAT_ADTS}, {@link #FILE_FORMAT_AMR}, {@link
* #FILE_FORMAT_FLAC}, {@link #FILE_FORMAT_FLV}, {@link #FILE_FORMAT_MATROSKA}, {@link
* #FILE_FORMAT_MP3}, {@link #FILE_FORMAT_MP4}, {@link #FILE_FORMAT_OGG}, {@link #FILE_FORMAT_PS},
* {@link #FILE_FORMAT_TS}, {@link #FILE_FORMAT_WAV} and {@link #FILE_FORMAT_WEBVTT}.
*/
@Documented
@Retention(RetentionPolicy.SOURCE)
@IntDef({
FILE_FORMAT_UNKNOWN,
FILE_FORMAT_AC3,
FILE_FORMAT_AC4,
FILE_FORMAT_ADTS,
FILE_FORMAT_AMR,
FILE_FORMAT_FLAC,
FILE_FORMAT_FLV,
FILE_FORMAT_MATROSKA,
FILE_FORMAT_MP3,
FILE_FORMAT_MP4,
FILE_FORMAT_OGG,
FILE_FORMAT_PS,
FILE_FORMAT_TS,
FILE_FORMAT_WAV,
FILE_FORMAT_WEBVTT
})
public @interface FileFormat {}
/** Unknown file format. */
public static final int FILE_FORMAT_UNKNOWN = -1;
/** File format for AC-3 and E-AC-3. */
public static final int FILE_FORMAT_AC3 = 0;
/** File format for AC-4. */
public static final int FILE_FORMAT_AC4 = 1;
/** File format for ADTS. */
public static final int FILE_FORMAT_ADTS = 2;
/** File format for AMR. */
public static final int FILE_FORMAT_AMR = 3;
/** File format for FLAC. */
public static final int FILE_FORMAT_FLAC = 4;
/** File format for FLV. */
public static final int FILE_FORMAT_FLV = 5;
/** File format for Matroska and WebM. */
public static final int FILE_FORMAT_MATROSKA = 6;
/** File format for MP3. */
public static final int FILE_FORMAT_MP3 = 7;
/** File format for MP4. */
public static final int FILE_FORMAT_MP4 = 8;
/** File format for Ogg. */
public static final int FILE_FORMAT_OGG = 9;
/** File format for MPEG-PS. */
public static final int FILE_FORMAT_PS = 10;
/** File format for MPEG-TS. */
public static final int FILE_FORMAT_TS = 11;
/** File format for WAV. */
public static final int FILE_FORMAT_WAV = 12;
/** File format for WebVTT. */
public static final int FILE_FORMAT_WEBVTT = 13;
private static final String FILE_EXTENSION_AC3 = ".ac3";
private static final String FILE_EXTENSION_EC3 = ".ec3";
private static final String FILE_EXTENSION_AC4 = ".ac4";
private static final String FILE_EXTENSION_ADTS = ".adts";
private static final String FILE_EXTENSION_AAC = ".aac";
private static final String FILE_EXTENSION_AMR = ".amr";
private static final String FILE_EXTENSION_FLAC = ".flac";
private static final String FILE_EXTENSION_FLV = ".flv";
private static final String FILE_EXTENSION_PREFIX_MK = ".mk";
private static final String FILE_EXTENSION_WEBM = ".webm";
private static final String FILE_EXTENSION_PREFIX_OG = ".og";
private static final String FILE_EXTENSION_OPUS = ".opus";
private static final String FILE_EXTENSION_MP3 = ".mp3";
private static final String FILE_EXTENSION_MP4 = ".mp4";
private static final String FILE_EXTENSION_PREFIX_M4 = ".m4";
private static final String FILE_EXTENSION_PREFIX_MP4 = ".mp4";
private static final String FILE_EXTENSION_PREFIX_CMF = ".cmf";
private static final String FILE_EXTENSION_PS = ".ps";
private static final String FILE_EXTENSION_MPEG = ".mpeg";
private static final String FILE_EXTENSION_MPG = ".mpg";
private static final String FILE_EXTENSION_M2P = ".m2p";
private static final String FILE_EXTENSION_TS = ".ts";
private static final String FILE_EXTENSION_PREFIX_TS = ".ts";
private static final String FILE_EXTENSION_WAV = ".wav";
private static final String FILE_EXTENSION_WAVE = ".wave";
private static final String FILE_EXTENSION_VTT = ".vtt";
private static final String FILE_EXTENSION_WEBVTT = ".webvtt";
private FilenameUtil() {}
/**
* Returns the {@link FileFormat} corresponding to the extension of the provided {@code filename}.
*/
@FileFormat
public static int getFormatFromExtension(String filename) {
if (filename.endsWith(FILE_EXTENSION_AC3) || filename.endsWith(FILE_EXTENSION_EC3)) {
return FILE_FORMAT_AC3;
} else if (filename.endsWith(FILE_EXTENSION_AC4)) {
return FILE_FORMAT_AC4;
} else if (filename.endsWith(FILE_EXTENSION_ADTS) || filename.endsWith(FILE_EXTENSION_AAC)) {
return FILE_FORMAT_ADTS;
} else if (filename.endsWith(FILE_EXTENSION_AMR)) {
return FILE_FORMAT_AMR;
} else if (filename.endsWith(FILE_EXTENSION_FLAC)) {
return FILE_FORMAT_FLAC;
} else if (filename.endsWith(FILE_EXTENSION_FLV)) {
return FILE_FORMAT_FLV;
} else if (filename.startsWith(
FILE_EXTENSION_PREFIX_MK,
/* toffset= */ filename.length() - (FILE_EXTENSION_PREFIX_MK.length() + 1))
|| filename.endsWith(FILE_EXTENSION_WEBM)) {
return FILE_FORMAT_MATROSKA;
} else if (filename.endsWith(FILE_EXTENSION_MP3)) {
return FILE_FORMAT_MP3;
} else if (filename.endsWith(FILE_EXTENSION_MP4)
|| filename.startsWith(
FILE_EXTENSION_PREFIX_M4,
/* toffset= */ filename.length() - (FILE_EXTENSION_PREFIX_M4.length() + 1))
|| filename.startsWith(
FILE_EXTENSION_PREFIX_MP4,
/* toffset= */ filename.length() - (FILE_EXTENSION_PREFIX_MP4.length() + 1))
|| filename.startsWith(
FILE_EXTENSION_PREFIX_CMF,
/* toffset= */ filename.length() - (FILE_EXTENSION_PREFIX_CMF.length() + 1))) {
return FILE_FORMAT_MP4;
} else if (filename.startsWith(
FILE_EXTENSION_PREFIX_OG,
/* toffset= */ filename.length() - (FILE_EXTENSION_PREFIX_OG.length() + 1))
|| filename.endsWith(FILE_EXTENSION_OPUS)) {
return FILE_FORMAT_OGG;
} else if (filename.endsWith(FILE_EXTENSION_PS)
|| filename.endsWith(FILE_EXTENSION_MPEG)
|| filename.endsWith(FILE_EXTENSION_MPG)
|| filename.endsWith(FILE_EXTENSION_M2P)) {
return FILE_FORMAT_PS;
} else if (filename.endsWith(FILE_EXTENSION_TS)
|| filename.startsWith(
FILE_EXTENSION_PREFIX_TS,
/* toffset= */ filename.length() - (FILE_EXTENSION_PREFIX_TS.length() + 1))) {
return FILE_FORMAT_TS;
} else if (filename.endsWith(FILE_EXTENSION_WAV) || filename.endsWith(FILE_EXTENSION_WAVE)) {
return FILE_FORMAT_WAV;
} else if (filename.endsWith(FILE_EXTENSION_VTT) || filename.endsWith(FILE_EXTENSION_WEBVTT)) {
return FILE_FORMAT_WEBVTT;
} else {
return FILE_FORMAT_UNKNOWN;
}
}
}

46
library/common/src/test/java/com/google/android/exoplayer2/util/FilenameUtilTest.java Normal file
View File

@ -0,0 +1,46 @@
/*
* Copyright 2020 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.util;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_MATROSKA;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_MP3;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_UNKNOWN;
import static com.google.android.exoplayer2.util.FilenameUtil.getFormatFromExtension;
import static com.google.common.truth.Truth.assertThat;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
/** Tests for {@link FilenameUtilTest}. */
@RunWith(AndroidJUnit4.class)
public class FilenameUtilTest {
@Test
public void getFormatFromExtension_withExtension_returnsExpectedFormat() {
assertThat(getFormatFromExtension("filename.mp3")).isEqualTo(FILE_FORMAT_MP3);
}
@Test
public void getFormatFromExtension_withExtensionPrefix_returnsExpectedFormat() {
assertThat(getFormatFromExtension("filename.mka")).isEqualTo(FILE_FORMAT_MATROSKA);
}
@Test
public void getFormatFromExtension_unknownExtension_returnsUnknownFormat() {
assertThat(getFormatFromExtension("filename.unknown")).isEqualTo(FILE_FORMAT_UNKNOWN);
}
}

60
library/hls/src/main/java/com/google/android/exoplayer2/source/hls/DefaultHlsExtractorFactory.java
View File

@ -15,6 +15,15 @@
*/
package com.google.android.exoplayer2.source.hls;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_AC3;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_AC4;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_ADTS;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_MP3;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_MP4;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_TS;
import static com.google.android.exoplayer2.util.FilenameUtil.FILE_FORMAT_WEBVTT;
import static com.google.android.exoplayer2.util.FilenameUtil.getFormatFromExtension;
import android.net.Uri;
import android.text.TextUtils;
import androidx.annotation.Nullable;
@ -30,6 +39,7 @@ import com.google.android.exoplayer2.extractor.ts.DefaultTsPayloadReaderFactory;
import com.google.android.exoplayer2.extractor.ts.TsExtractor;
import com.google.android.exoplayer2.metadata.Metadata;
import com.google.android.exoplayer2.util.Assertions;
import com.google.android.exoplayer2.util.FilenameUtil;
import com.google.android.exoplayer2.util.MimeTypes;
import com.google.android.exoplayer2.util.TimestampAdjuster;
import java.io.EOFException;
@ -43,20 +53,6 @@ import java.util.Map;
*/
public final class DefaultHlsExtractorFactory implements HlsExtractorFactory {
public static final String AAC_FILE_EXTENSION = ".aac";
public static final String AC3_FILE_EXTENSION = ".ac3";
public static final String EC3_FILE_EXTENSION = ".ec3";
public static final String AC4_FILE_EXTENSION = ".ac4";
public static final String MP3_FILE_EXTENSION = ".mp3";
public static final String MP4_FILE_EXTENSION = ".mp4";
public static final String M4_FILE_EXTENSION_PREFIX = ".m4";
public static final String MP4_FILE_EXTENSION_PREFIX = ".mp4";
public static final String CMF_FILE_EXTENSION_PREFIX = ".cmf";
public static final String TS_FILE_EXTENSION = ".ts";
public static final String TS_FILE_EXTENSION_PREFIX = ".ts";
public static final String VTT_FILE_EXTENSION = ".vtt";
public static final String WEBVTT_FILE_EXTENSION = ".webvtt";
@DefaultTsPayloadReaderFactory.Flags private final int payloadReaderFactoryFlags;
private final boolean exposeCea608WhenMissingDeclarations;
@ -196,37 +192,35 @@ public final class DefaultHlsExtractorFactory implements HlsExtractorFactory {
Format format,
@Nullable List<Format> muxedCaptionFormats,
TimestampAdjuster timestampAdjuster) {
String lastPathSegment = uri.getLastPathSegment();
if (lastPathSegment == null) {
lastPathSegment = "";
}
if (MimeTypes.TEXT_VTT.equals(format.sampleMimeType)
|| lastPathSegment.endsWith(WEBVTT_FILE_EXTENSION)
|| lastPathSegment.endsWith(VTT_FILE_EXTENSION)) {
if (MimeTypes.TEXT_VTT.equals(format.sampleMimeType)) {
return new WebvttExtractor(format.language, timestampAdjuster);
} else if (lastPathSegment.endsWith(AAC_FILE_EXTENSION)) {
}
String filename = uri.getLastPathSegment();
if (filename == null) {
return null;
}
@FilenameUtil.FileFormat int fileFormat = getFormatFromExtension(filename);
switch (fileFormat) {
case FILE_FORMAT_WEBVTT:
return new WebvttExtractor(format.language, timestampAdjuster);
case FILE_FORMAT_ADTS:
return new AdtsExtractor();
} else if (lastPathSegment.endsWith(AC3_FILE_EXTENSION)
|| lastPathSegment.endsWith(EC3_FILE_EXTENSION)) {
case FILE_FORMAT_AC3:
return new Ac3Extractor();
} else if (lastPathSegment.endsWith(AC4_FILE_EXTENSION)) {
case FILE_FORMAT_AC4:
return new Ac4Extractor();
} else if (lastPathSegment.endsWith(MP3_FILE_EXTENSION)) {
case FILE_FORMAT_MP3:
return new Mp3Extractor(/* flags= */ 0, /* forcedFirstSampleTimestampUs= */ 0);
} else if (lastPathSegment.endsWith(MP4_FILE_EXTENSION)
|| lastPathSegment.startsWith(M4_FILE_EXTENSION_PREFIX, lastPathSegment.length() - 4)
|| lastPathSegment.startsWith(MP4_FILE_EXTENSION_PREFIX, lastPathSegment.length() - 5)
|| lastPathSegment.startsWith(CMF_FILE_EXTENSION_PREFIX, lastPathSegment.length() - 5)) {
case FILE_FORMAT_MP4:
return createFragmentedMp4Extractor(timestampAdjuster, format, muxedCaptionFormats);
} else if (lastPathSegment.endsWith(TS_FILE_EXTENSION)
|| lastPathSegment.startsWith(TS_FILE_EXTENSION_PREFIX, lastPathSegment.length() - 4)) {
case FILE_FORMAT_TS:
return createTsExtractor(
payloadReaderFactoryFlags,
exposeCea608WhenMissingDeclarations,
format,
muxedCaptionFormats,
timestampAdjuster);
} else {
default:
return null;
}
}