Add 32-bit FLAC test files, and use them in some tests

The matroska file works without further changes. The FLAC container file works with `lib-flac-decoder` depending on a bundled `libflac` implementation, but not when using `androidx.media3.extractor.flac.FlacExtractor` with a `MediaCodec` FLAC decoder because the media3 extractor doesn't support 32-bit FLAC yet. The fix for that is in a follow-up change. `bear_32bit.flac` was generated from `bear.flac` with `ffmpeg`: ```shell $ ffmpeg \ -i bear.flac \ -c:a flac \ -sample_fmt s32 \ -strict experimental \ bear_32bit.flac ``` `bear-flac-32bit.mka` was generated by re-muxing `bear_32bit.flac`, also with `ffmpeg` (trying to convert `bear-flac-24bit.mka` to 32-bit didn't work, the resulting file was still 24-bit): ```shell $ ffmpeg \ -i ../flac/bear_32bit.flac \ -c:a copy \ bear-flac-32bit.mka ``` Issue: androidx/media#2197 PiperOrigin-RevId: 736552251 (cherry picked from commit dfebe72b6a175ed92420c1946bd06b952d85132d)
2025-04-29 22:36:54 +08:00 · 2025-03-13 10:19:32 -07:00 · 2025-03-13 10:19:32 -07:00 · 5c1e0d964a
commit 5c1e0d964a
parent fa71bf229e
12 changed files with 882 additions and 0 deletions
--- a/libraries/decoder_flac/src/androidTest/java/androidx/media3/decoder/flac/FlacExtractorTest.java
+++ b/libraries/decoder_flac/src/androidTest/java/androidx/media3/decoder/flac/FlacExtractorTest.java
@ -44,6 +44,14 @@ public class FlacExtractorTest {
        /* dumpFilesPrefix= */ "extractordumps/flac/bear_raw");
  }

+  @Test
+  public void sample32bit() throws Exception {
+    ExtractorAsserts.assertAllBehaviors(
+        FlacExtractor::new,
+        /* file= */ "media/flac/bear_32bit.flac",
+        /* dumpFilesPrefix= */ "extractordumps/flac/bear_32bit_raw");
+  }
+
  @Test
  public void sampleWithId3HeaderAndId3Enabled() throws Exception {
    ExtractorAsserts.assertAllBehaviors(
--- a/libraries/decoder_flac/src/androidTest/java/androidx/media3/decoder/flac/FlacPlaybackTest.java
+++ b/libraries/decoder_flac/src/androidTest/java/androidx/media3/decoder/flac/FlacPlaybackTest.java
@ -48,6 +48,7 @@ public class FlacPlaybackTest {

  private static final String BEAR_FLAC_16BIT = "mka/bear-flac-16bit.mka";
  private static final String BEAR_FLAC_24BIT = "mka/bear-flac-24bit.mka";
+  private static final String BEAR_FLAC_32BIT = "mka/bear-flac-32bit.mka";

  @Before
  public void setUp() {
@ -66,6 +67,11 @@ public class FlacPlaybackTest {
    playAndAssertAudioSinkInput(BEAR_FLAC_24BIT);
  }

+  @Test
+  public void test32BitPlayback() throws Exception {
+    playAndAssertAudioSinkInput(BEAR_FLAC_32BIT);
+  }
+
  private static void playAndAssertAudioSinkInput(String fileName) throws Exception {
    CapturingAudioSink audioSink =
        new CapturingAudioSink(
--- a/libraries/exoplayer/src/test/java/androidx/media3/exoplayer/e2etest/MkaPlaybackTest.java
+++ b/libraries/exoplayer/src/test/java/androidx/media3/exoplayer/e2etest/MkaPlaybackTest.java
@ -41,6 +41,7 @@ public final class MkaPlaybackTest {
    return ImmutableList.of(
        "bear-flac-16bit.mka",
        "bear-flac-24bit.mka",
+        "bear-flac-32bit.mka",
        "bear-opus.mka",
        "bear-opus-negative-gain.mka");
  }
--- a/libraries/test_data/src/test/assets/audiosinkdumps/mka/bear-flac-32bit.mka.audiosink.dump
+++ b/libraries/test_data/src/test/assets/audiosinkdumps/mka/bear-flac-32bit.mka.audiosink.dump
@ -0,0 +1,94 @@
+AudioSink:
+  buffer count = 29
+  discontinuity:
+  config:
+    pcmEncoding = 22
+    channelCount = 2
+    sampleRate = 48000
+  buffer #0:
+    time = 1000000000000
+    data = -746929509
+  buffer #1:
+    time = 1000000096000
+    data = 1843221663
+  buffer #2:
+    time = 1000000192000
+    data = -753315018
+  buffer #3:
+    time = 1000000288000
+    data = -987395536
+  buffer #4:
+    time = 1000000384000
+    data = -301290316
+  buffer #5:
+    time = 1000000480000
+    data = -1165200562
+  buffer #6:
+    time = 1000000576000
+    data = 650616491
+  buffer #7:
+    time = 1000000672000
+    data = -1758005883
+  buffer #8:
+    time = 1000000768000
+    data = -1749269438
+  buffer #9:
+    time = 1000000864000
+    data = -1167887824
+  buffer #10:
+    time = 1000000960000
+    data = -1159777940
+  buffer #11:
+    time = 1000001056000
+    data = 94231483
+  buffer #12:
+    time = 1000001152000
+    data = 1164961407
+  buffer #13:
+    time = 1000001248000
+    data = -667334254
+  buffer #14:
+    time = 1000001344000
+    data = 353133318
+  buffer #15:
+    time = 1000001440000
+    data = -979797234
+  buffer #16:
+    time = 1000001536000
+    data = -420363394
+  buffer #17:
+    time = 1000001632000
+    data = 55072236
+  buffer #18:
+    time = 1000001728000
+    data = 1205528859
+  buffer #19:
+    time = 1000001824000
+    data = 1645315121
+  buffer #20:
+    time = 1000001920000
+    data = -1077485570
+  buffer #21:
+    time = 1000002016000
+    data = 110538032
+  buffer #22:
+    time = 1000002112000
+    data = 902882525
+  buffer #23:
+    time = 1000002208000
+    data = -1559538454
+  buffer #24:
+    time = 1000002304000
+    data = -1297310517
+  buffer #25:
+    time = 1000002400000
+    data = 608958818
+  buffer #26:
+    time = 1000002496000
+    data = 402297267
+  buffer #27:
+    time = 1000002592000
+    data = -546536196
+  buffer #28:
+    time = 1000002688000
+    data = -1541360306
--- a/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.0.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.0.dump
@ -0,0 +1,139 @@
+seekMap:
+  isSeekable = true
+  duration = 2741000
+  getPosition(0) = [[timeUs=0, position=8286]]
+  getPosition(1) = [[timeUs=1, position=8286]]
+  getPosition(1370500) = [[timeUs=1370500, position=83950]]
+  getPosition(2741000) = [[timeUs=2741000, position=163626]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 1052544
+  sample count = 29
+  track duration = 2741000
+  format 0:
+    averageBitrate = 3072000
+    peakBitrate = 3072000
+    containerMimeType = audio/flac
+    sampleMimeType = audio/raw
+    maxInputSize = 36864
+    channelCount = 2
+    sampleRate = 48000
+    pcmEncoding = 22
+    metadata = entries=[VC: ENCODER=Lavf61.7.100]
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 36864, hash BD8DA71B
+  sample 1:
+    time = 96000
+    flags = 1
+    data = length 36864, hash 421F769F
+  sample 2:
+    time = 192000
+    flags = 1
+    data = length 36864, hash AD186736
+  sample 3:
+    time = 288000
+    flags = 1
+    data = length 36864, hash 4D965FB0
+  sample 4:
+    time = 384000
+    flags = 1
+    data = length 36864, hash AE3AFFB4
+  sample 5:
+    time = 480000
+    flags = 1
+    data = length 36864, hash B442274E
+  sample 6:
+    time = 576000
+    flags = 1
+    data = length 36864, hash 9E8889EB
+  sample 7:
+    time = 672000
+    flags = 1
+    data = length 36864, hash CC9ED245
+  sample 8:
+    time = 768000
+    flags = 1
+    data = length 36864, hash CDCA3B02
+  sample 9:
+    time = 864000
+    flags = 1
+    data = length 36864, hash 3E7EF3F0
+  sample 10:
+    time = 960000
+    flags = 1
+    data = length 36864, hash AABD286C
+  sample 11:
+    time = 1056000
+    flags = 1
+    data = length 36864, hash 8848FDFB
+  sample 12:
+    time = 1152000
+    flags = 1
+    data = length 36864, hash FA880EFF
+  sample 13:
+    time = 1248000
+    flags = 1
+    data = length 36864, hash 597D7692
+  sample 14:
+    time = 1344000
+    flags = 1
+    data = length 36864, hash BEFF9B86
+  sample 15:
+    time = 1440000
+    flags = 1
+    data = length 36864, hash 1D2B3E4E
+  sample 16:
+    time = 1536000
+    flags = 1
+    data = length 36864, hash 33A272FE
+  sample 17:
+    time = 1632000
+    flags = 1
+    data = length 36864, hash 756B9E6C
+  sample 18:
+    time = 1728000
+    flags = 1
+    data = length 36864, hash A7C3DC9B
+  sample 19:
+    time = 1824000
+    flags = 1
+    data = length 36864, hash B4C9DEB1
+  sample 20:
+    time = 1920000
+    flags = 1
+    data = length 36864, hash D2F72F7E
+  sample 21:
+    time = 2016000
+    flags = 1
+    data = length 36864, hash 93F6F570
+  sample 22:
+    time = 2112000
+    flags = 1
+    data = length 36864, hash D49823DD
+  sample 23:
+    time = 2208000
+    flags = 1
+    data = length 36864, hash 129FF62A
+  sample 24:
+    time = 2304000
+    flags = 1
+    data = length 36864, hash AC17044B
+  sample 25:
+    time = 2400000
+    flags = 1
+    data = length 36864, hash 92429562
+  sample 26:
+    time = 2496000
+    flags = 1
+    data = length 36864, hash EC7AE33
+  sample 27:
+    time = 2592000
+    flags = 1
+    data = length 36864, hash 98FEA2FC
+  sample 28:
+    time = 2688000
+    flags = 1
+    data = length 20352, hash 89878FCE
+tracksEnded = true
--- a/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.1.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.1.dump
@ -0,0 +1,103 @@
+seekMap:
+  isSeekable = true
+  duration = 2741000
+  getPosition(0) = [[timeUs=0, position=8286]]
+  getPosition(1) = [[timeUs=1, position=8286]]
+  getPosition(1370500) = [[timeUs=1370500, position=83950]]
+  getPosition(2741000) = [[timeUs=2741000, position=163626]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 720768
+  sample count = 20
+  track duration = 2741000
+  format 0:
+    averageBitrate = 3072000
+    peakBitrate = 3072000
+    containerMimeType = audio/flac
+    sampleMimeType = audio/raw
+    maxInputSize = 36864
+    channelCount = 2
+    sampleRate = 48000
+    pcmEncoding = 22
+    metadata = entries=[VC: ENCODER=Lavf61.7.100]
+  sample 0:
+    time = 864000
+    flags = 1
+    data = length 36864, hash 3E7EF3F0
+  sample 1:
+    time = 960000
+    flags = 1
+    data = length 36864, hash AABD286C
+  sample 2:
+    time = 1056000
+    flags = 1
+    data = length 36864, hash 8848FDFB
+  sample 3:
+    time = 1152000
+    flags = 1
+    data = length 36864, hash FA880EFF
+  sample 4:
+    time = 1248000
+    flags = 1
+    data = length 36864, hash 597D7692
+  sample 5:
+    time = 1344000
+    flags = 1
+    data = length 36864, hash BEFF9B86
+  sample 6:
+    time = 1440000
+    flags = 1
+    data = length 36864, hash 1D2B3E4E
+  sample 7:
+    time = 1536000
+    flags = 1
+    data = length 36864, hash 33A272FE
+  sample 8:
+    time = 1632000
+    flags = 1
+    data = length 36864, hash 756B9E6C
+  sample 9:
+    time = 1728000
+    flags = 1
+    data = length 36864, hash A7C3DC9B
+  sample 10:
+    time = 1824000
+    flags = 1
+    data = length 36864, hash B4C9DEB1
+  sample 11:
+    time = 1920000
+    flags = 1
+    data = length 36864, hash D2F72F7E
+  sample 12:
+    time = 2016000
+    flags = 1
+    data = length 36864, hash 93F6F570
+  sample 13:
+    time = 2112000
+    flags = 1
+    data = length 36864, hash D49823DD
+  sample 14:
+    time = 2208000
+    flags = 1
+    data = length 36864, hash 129FF62A
+  sample 15:
+    time = 2304000
+    flags = 1
+    data = length 36864, hash AC17044B
+  sample 16:
+    time = 2400000
+    flags = 1
+    data = length 36864, hash 92429562
+  sample 17:
+    time = 2496000
+    flags = 1
+    data = length 36864, hash EC7AE33
+  sample 18:
+    time = 2592000
+    flags = 1
+    data = length 36864, hash 98FEA2FC
+  sample 19:
+    time = 2688000
+    flags = 1
+    data = length 20352, hash 89878FCE
+tracksEnded = true
--- a/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.2.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.2.dump
@ -0,0 +1,63 @@
+seekMap:
+  isSeekable = true
+  duration = 2741000
+  getPosition(0) = [[timeUs=0, position=8286]]
+  getPosition(1) = [[timeUs=1, position=8286]]
+  getPosition(1370500) = [[timeUs=1370500, position=83950]]
+  getPosition(2741000) = [[timeUs=2741000, position=163626]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 352128
+  sample count = 10
+  track duration = 2741000
+  format 0:
+    averageBitrate = 3072000
+    peakBitrate = 3072000
+    containerMimeType = audio/flac
+    sampleMimeType = audio/raw
+    maxInputSize = 36864
+    channelCount = 2
+    sampleRate = 48000
+    pcmEncoding = 22
+    metadata = entries=[VC: ENCODER=Lavf61.7.100]
+  sample 0:
+    time = 1824000
+    flags = 1
+    data = length 36864, hash B4C9DEB1
+  sample 1:
+    time = 1920000
+    flags = 1
+    data = length 36864, hash D2F72F7E
+  sample 2:
+    time = 2016000
+    flags = 1
+    data = length 36864, hash 93F6F570
+  sample 3:
+    time = 2112000
+    flags = 1
+    data = length 36864, hash D49823DD
+  sample 4:
+    time = 2208000
+    flags = 1
+    data = length 36864, hash 129FF62A
+  sample 5:
+    time = 2304000
+    flags = 1
+    data = length 36864, hash AC17044B
+  sample 6:
+    time = 2400000
+    flags = 1
+    data = length 36864, hash 92429562
+  sample 7:
+    time = 2496000
+    flags = 1
+    data = length 36864, hash EC7AE33
+  sample 8:
+    time = 2592000
+    flags = 1
+    data = length 36864, hash 98FEA2FC
+  sample 9:
+    time = 2688000
+    flags = 1
+    data = length 20352, hash 89878FCE
+tracksEnded = true
--- a/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.3.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.3.dump
@ -0,0 +1,27 @@
+seekMap:
+  isSeekable = true
+  duration = 2741000
+  getPosition(0) = [[timeUs=0, position=8286]]
+  getPosition(1) = [[timeUs=1, position=8286]]
+  getPosition(1370500) = [[timeUs=1370500, position=83950]]
+  getPosition(2741000) = [[timeUs=2741000, position=163626]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 20352
+  sample count = 1
+  track duration = 2741000
+  format 0:
+    averageBitrate = 3072000
+    peakBitrate = 3072000
+    containerMimeType = audio/flac
+    sampleMimeType = audio/raw
+    maxInputSize = 36864
+    channelCount = 2
+    sampleRate = 48000
+    pcmEncoding = 22
+    metadata = entries=[VC: ENCODER=Lavf61.7.100]
+  sample 0:
+    time = 2688000
+    flags = 1
+    data = length 20352, hash 89878FCE
+tracksEnded = true
--- a/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.unknown_length.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/flac/bear_32bit_raw.unknown_length.dump
@ -0,0 +1,136 @@
+seekMap:
+  isSeekable = false
+  duration = 2741000
+  getPosition(0) = [[timeUs=0, position=0]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 1052544
+  sample count = 29
+  track duration = 2741000
+  format 0:
+    averageBitrate = 3072000
+    peakBitrate = 3072000
+    containerMimeType = audio/flac
+    sampleMimeType = audio/raw
+    maxInputSize = 36864
+    channelCount = 2
+    sampleRate = 48000
+    pcmEncoding = 22
+    metadata = entries=[VC: ENCODER=Lavf61.7.100]
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 36864, hash BD8DA71B
+  sample 1:
+    time = 96000
+    flags = 1
+    data = length 36864, hash 421F769F
+  sample 2:
+    time = 192000
+    flags = 1
+    data = length 36864, hash AD186736
+  sample 3:
+    time = 288000
+    flags = 1
+    data = length 36864, hash 4D965FB0
+  sample 4:
+    time = 384000
+    flags = 1
+    data = length 36864, hash AE3AFFB4
+  sample 5:
+    time = 480000
+    flags = 1
+    data = length 36864, hash B442274E
+  sample 6:
+    time = 576000
+    flags = 1
+    data = length 36864, hash 9E8889EB
+  sample 7:
+    time = 672000
+    flags = 1
+    data = length 36864, hash CC9ED245
+  sample 8:
+    time = 768000
+    flags = 1
+    data = length 36864, hash CDCA3B02
+  sample 9:
+    time = 864000
+    flags = 1
+    data = length 36864, hash 3E7EF3F0
+  sample 10:
+    time = 960000
+    flags = 1
+    data = length 36864, hash AABD286C
+  sample 11:
+    time = 1056000
+    flags = 1
+    data = length 36864, hash 8848FDFB
+  sample 12:
+    time = 1152000
+    flags = 1
+    data = length 36864, hash FA880EFF
+  sample 13:
+    time = 1248000
+    flags = 1
+    data = length 36864, hash 597D7692
+  sample 14:
+    time = 1344000
+    flags = 1
+    data = length 36864, hash BEFF9B86
+  sample 15:
+    time = 1440000
+    flags = 1
+    data = length 36864, hash 1D2B3E4E
+  sample 16:
+    time = 1536000
+    flags = 1
+    data = length 36864, hash 33A272FE
+  sample 17:
+    time = 1632000
+    flags = 1
+    data = length 36864, hash 756B9E6C
+  sample 18:
+    time = 1728000
+    flags = 1
+    data = length 36864, hash A7C3DC9B
+  sample 19:
+    time = 1824000
+    flags = 1
+    data = length 36864, hash B4C9DEB1
+  sample 20:
+    time = 1920000
+    flags = 1
+    data = length 36864, hash D2F72F7E
+  sample 21:
+    time = 2016000
+    flags = 1
+    data = length 36864, hash 93F6F570
+  sample 22:
+    time = 2112000
+    flags = 1
+    data = length 36864, hash D49823DD
+  sample 23:
+    time = 2208000
+    flags = 1
+    data = length 36864, hash 129FF62A
+  sample 24:
+    time = 2304000
+    flags = 1
+    data = length 36864, hash AC17044B
+  sample 25:
+    time = 2400000
+    flags = 1
+    data = length 36864, hash 92429562
+  sample 26:
+    time = 2496000
+    flags = 1
+    data = length 36864, hash EC7AE33
+  sample 27:
+    time = 2592000
+    flags = 1
+    data = length 36864, hash 98FEA2FC
+  sample 28:
+    time = 2688000
+    flags = 1
+    data = length 20352, hash 89878FCE
+tracksEnded = true
--- a/libraries/test_data/src/test/assets/media/flac/bear_32bit.flac
+++ b/libraries/test_data/src/test/assets/media/flac/bear_32bit.flac
--- a/libraries/test_data/src/test/assets/media/mka/bear-flac-32bit.mka
+++ b/libraries/test_data/src/test/assets/media/mka/bear-flac-32bit.mka
--- a/libraries/test_data/src/test/assets/playbackdumps/mka/bear-flac-32bit.mka.dump
+++ b/libraries/test_data/src/test/assets/playbackdumps/mka/bear-flac-32bit.mka.dump
@ -0,0 +1,305 @@
+MediaCodecAdapter (exotest.audio.flac):
+  inputBuffers:
+    count = 30
+    input buffer #0:
+      timeUs = 1000000000000
+      contents = length 5806, hash E8370E2C
+    input buffer #1:
+      timeUs = 1000000096000
+      contents = length 5831, hash 4F0743B0
+    input buffer #2:
+      timeUs = 1000000192000
+      contents = length 5901, hash D725EF12
+    input buffer #3:
+      timeUs = 1000000288000
+      contents = length 5731, hash 14B1EFE
+    input buffer #4:
+      timeUs = 1000000384000
+      contents = length 5924, hash 481A7FC1
+    input buffer #5:
+      timeUs = 1000000480000
+      contents = length 5900, hash 4D715F5C
+    input buffer #6:
+      timeUs = 1000000576000
+      contents = length 5977, hash 59E98D91
+    input buffer #7:
+      timeUs = 1000000672000
+      contents = length 5888, hash 9B855417
+    input buffer #8:
+      timeUs = 1000000768000
+      contents = length 5880, hash F853FBB8
+    input buffer #9:
+      timeUs = 1000000864000
+      contents = length 5829, hash BFD59D6F
+    input buffer #10:
+      timeUs = 1000000960000
+      contents = length 5908, hash B38E101B
+    input buffer #11:
+      timeUs = 1000001056000
+      contents = length 6223, hash BD01CA3C
+    input buffer #12:
+      timeUs = 1000001152000
+      contents = length 6040, hash ABBAE87B
+    input buffer #13:
+      timeUs = 1000001248000
+      contents = length 5974, hash 9A589524
+    input buffer #14:
+      timeUs = 1000001344000
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