diff --git a/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/FragmentedMp4Extractor.java b/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/FragmentedMp4Extractor.java
index 283d7ff53ed..3e44fa70208 100644
--- a/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/FragmentedMp4Extractor.java
+++ b/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/FragmentedMp4Extractor.java
@@ -1479,18 +1479,17 @@ private static void parseSampleGroups(
     sgpd.setPosition(Mp4Box.HEADER_SIZE);
     int sgpdVersion = BoxParser.parseFullBoxVersion(sgpd.readInt());
     sgpd.skipBytes(4); // grouping_type == seig.
-    if (sgpdVersion == 1) {
-      if (sgpd.readUnsignedInt() == 0) {
-        throw ParserException.createForUnsupportedContainerFeature(
-            "Variable length description in sgpd found (unsupported)");
-      }
-    } else if (sgpdVersion >= 2) {
+    long default_length = sgpdVersion >= 1 ? sgpd.readUnsignedInt() : 0;
+    if (sgpdVersion >= 2) {
       sgpd.skipBytes(4); // default_sample_description_index.
     }
     if (sgpd.readUnsignedInt() != 1) { // entry_count.
       throw ParserException.createForUnsupportedContainerFeature(
           "Entry count in sgpd != 1 (unsupported).");
     }
+    if (sgpdVersion >= 1 && default_length == 0) {
+      sgpd.skipBytes(4); // description_length.
+    }
 
     // CencSampleEncryptionInformationGroupEntry
     sgpd.skipBytes(1); // reserved = 0.
diff --git a/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/FragmentedMp4ExtractorNonParameterizedTest.java b/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/FragmentedMp4ExtractorNonParameterizedTest.java
index 4ec50d4ce77..85b05734e0c 100644
--- a/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/FragmentedMp4ExtractorNonParameterizedTest.java
+++ b/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/FragmentedMp4ExtractorNonParameterizedTest.java
@@ -80,6 +80,22 @@ public void sniff_returnsFalseWithoutPeekingLargeStbl() throws Exception {
     assertThat(input.getMaxPeekLimit()).isLessThan(500);
   }
 
+  @Test
+  public void extract_h264WithVariableLengthSgpdBox() throws Exception {
+    FragmentedMp4Extractor extractor =
+        new FragmentedMp4Extractor(SubtitleParser.Factory.UNSUPPORTED);
+    FakeExtractorOutput output =
+        TestUtil.extractAllSamplesFromFile(
+            extractor,
+            ApplicationProvider.getApplicationContext(),
+            "media/mp4/sample_fragmented_variable_length_sgpd.mp4");
+
+    DumpFileAsserts.assertOutput(
+        ApplicationProvider.getApplicationContext(),
+        output,
+        "extractordumps/mp4/fragmented_variable_length_sgpd.mp4");
+  }
+
   private static FakeExtractorInput createInputForSample(String sample) throws IOException {
     return new FakeExtractorInput.Builder()
         .setData(
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/fragmented_variable_length_sgpd.mp4 b/libraries/test_data/src/test/assets/extractordumps/mp4/fragmented_variable_length_sgpd.mp4
new file mode 100644
index 00000000000..460040a4baf
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/fragmented_variable_length_sgpd.mp4
@@ -0,0 +1,1530 @@
+seekMap:
+  isSeekable = true
+  duration = 8010666
+  getPosition(0) = [[timeUs=0, position=781]]
+  getPosition(1) = [[timeUs=0, position=781], [timeUs=1994666, position=17291]]
+  getPosition(4005333) = [[timeUs=4000000, position=33935], [timeUs=6005333, position=50577]]
+  getPosition(8010666) = [[timeUs=6005333, position=50577]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 64237
+  sample count = 376
+  track duration = 8021333
+  format 0:
+    averageBitrate = 64066
+    peakBitrate = 64856
+    id = 1
+    containerMimeType = audio/mp4
+    sampleMimeType = audio/mp4a-latm
+    codecs = mp4a.40.2
+    channelCount = 2
+    sampleRate = 48000
+    language = en
+    metadata = entries=[Mp4AlternateGroup: 1, Mp4Timestamp: creation time=0, modification time=0, timescale=48000]
+    initializationData:
+      data = length 2, hash 560
+  sample 0:
+    time = -10666
+    flags = 1
+    data = length 172, hash 606F9646
+  sample 1:
+    time = 10666
+    flags = 1
+    data = length 163, hash 1F9DB897
+  sample 2:
+    time = 32000
+    flags = 1
+    data = length 161, hash E87618E8
+  sample 3:
+    time = 53333
+    flags = 1
+    data = length 168, hash 33260A03
+  sample 4:
+    time = 74666
+    flags = 1
+    data = length 175, hash F565CFB4
+  sample 5:
+    time = 96000
+    flags = 1
+    data = length 168, hash F92A4871
+  sample 6:
+    time = 117333
+    flags = 1
+    data = length 164, hash ABE0FBD8
+  sample 7:
+    time = 138666
+    flags = 1
+    data = length 168, hash F2B763D
+  sample 8:
+    time = 160000
+    flags = 1
+    data = length 160, hash F5EBCB28
+  sample 9:
+    time = 181333
+    flags = 1
+    data = length 166, hash B15FFFF6
+  sample 10:
+    time = 202666
+    flags = 1
+    data = length 175, hash 2BDFE4CB
+  sample 11:
+    time = 224000
+    flags = 1
+    data = length 172, hash 861023B2
+  sample 12:
+    time = 245333
+    flags = 1
+    data = length 172, hash 4E9B7FF3
+  sample 13:
+    time = 266666
+    flags = 1
+    data = length 171, hash EF683ECB
+  sample 14:
+    time = 288000
+    flags = 1
+    data = length 174, hash A575FBBE
+  sample 15:
+    time = 309333
+    flags = 1
+    data = length 173, hash 27FD4F83
+  sample 16:
+    time = 330666
+    flags = 1
+    data = length 170, hash AF82E361
+  sample 17:
+    time = 352000
+    flags = 1
+    data = length 169, hash E4B52096
+  sample 18:
+    time = 373333
+    flags = 1
+    data = length 164, hash A0FF4C93
+  sample 19:
+    time = 394666
+    flags = 1
+    data = length 172, hash 6E1F7612
+  sample 20:
+    time = 416000
+    flags = 1
+    data = length 176, hash 8E1D8E72
+  sample 21:
+    time = 437333
+    flags = 1
+    data = length 183, hash 815CD11
+  sample 22:
+    time = 458666
+    flags = 1
+    data = length 167, hash 735785F0
+  sample 23:
+    time = 480000
+    flags = 1
+    data = length 182, hash 9F6F129
+  sample 24:
+    time = 501333
+    flags = 1
+    data = length 174, hash F7A3A104
+  sample 25:
+    time = 522666
+    flags = 1
+    data = length 159, hash 9A5024C5
+  sample 26:
+    time = 544000
+    flags = 1
+    data = length 182, hash E78F04ED
+  sample 27:
+    time = 565333
+    flags = 1
+    data = length 172, hash A719A8EC
+  sample 28:
+    time = 586666
+    flags = 1
+    data = length 168, hash C8D3B
+  sample 29:
+    time = 608000
+    flags = 1
+    data = length 164, hash C3A2D50E
+  sample 30:
+    time = 629333
+    flags = 1
+    data = length 157, hash ED396AF1
+  sample 31:
+    time = 650666
+    flags = 1
+    data = length 172, hash 3971B10E
+  sample 32:
+    time = 672000
+    flags = 1
+    data = length 163, hash 9B2B2A4B
+  sample 33:
+    time = 693333
+    flags = 1
+    data = length 172, hash 9F386DBB
+  sample 34:
+    time = 714666
+    flags = 1
+    data = length 181, hash 57F11013
+  sample 35:
+    time = 736000
+    flags = 1
+    data = length 159, hash 4AB397F1
+  sample 36:
+    time = 757333
+    flags = 1
+    data = length 185, hash 66992C2E
+  sample 37:
+    time = 778666
+    flags = 1
+    data = length 174, hash E43735E3
+  sample 38:
+    time = 800000
+    flags = 1
+    data = length 170, hash 3D5AB4C6
+  sample 39:
+    time = 821333
+    flags = 1
+    data = length 159, hash 48177636
+  sample 40:
+    time = 842666
+    flags = 1
+    data = length 159, hash EB95B523
+  sample 41:
+    time = 864000
+    flags = 1
+    data = length 170, hash 1407A348
+  sample 42:
+    time = 885333
+    flags = 1
+    data = length 170, hash FFDF0E1A
+  sample 43:
+    time = 906666
+    flags = 1
+    data = length 168, hash FA1D5387
+  sample 44:
+    time = 928000
+    flags = 1
+    data = length 160, hash E460CEFD
+  sample 45:
+    time = 949333
+    flags = 1
+    data = length 176, hash FA8B3F7E
+  sample 46:
+    time = 970666
+    flags = 1
+    data = length 170, hash CD276612
+  sample 47:
+    time = 992000
+    flags = 1
+    data = length 169, hash EA58AAFE
+  sample 48:
+    time = 1013333
+    flags = 1
+    data = length 167, hash 48DF6388
+  sample 49:
+    time = 1034666
+    flags = 1
+    data = length 187, hash ED2878C5
+  sample 50:
+    time = 1056000
+    flags = 1
+    data = length 174, hash 7EDF1163
+  sample 51:
+    time = 1077333
+    flags = 1
+    data = length 169, hash 845CD6DE
+  sample 52:
+    time = 1098666
+    flags = 1
+    data = length 170, hash 9FBD8DCA
+  sample 53:
+    time = 1120000
+    flags = 1
+    data = length 181, hash 64A8A03F
+  sample 54:
+    time = 1141333
+    flags = 1
+    data = length 180, hash 35CABF7B
+  sample 55:
+    time = 1162666
+    flags = 1
+    data = length 166, hash 5B24DC5F
+  sample 56:
+    time = 1184000
+    flags = 1
+    data = length 176, hash 919297CD
+  sample 57:
+    time = 1205333
+    flags = 1
+    data = length 158, hash D1EC6A10
+  sample 58:
+    time = 1226666
+    flags = 1
+    data = length 165, hash 27D276DE
+  sample 59:
+    time = 1248000
+    flags = 1
+    data = length 165, hash F5C92EA3
+  sample 60:
+    time = 1269333
+    flags = 1
+    data = length 169, hash 9EE88D20
+  sample 61:
+    time = 1290666
+    flags = 1
+    data = length 163, hash 5665BADF
+  sample 62:
+    time = 1312000
+    flags = 1
+    data = length 186, hash 19A52CA6
+  sample 63:
+    time = 1333333
+    flags = 1
+    data = length 165, hash 9005AFA4
+  sample 64:
+    time = 1354666
+    flags = 1
+    data = length 174, hash B3FFF871
+  sample 65:
+    time = 1376000
+    flags = 1
+    data = length 168, hash 679B064F
+  sample 66:
+    time = 1397333
+    flags = 1
+    data = length 161, hash C527F2CF
+  sample 67:
+    time = 1418666
+    flags = 1
+    data = length 164, hash 97BDA71
+  sample 68:
+    time = 1440000
+    flags = 1
+    data = length 175, hash B946A6FC
+  sample 69:
+    time = 1461333
+    flags = 1
+    data = length 171, hash EB8C3DAA
+  sample 70:
+    time = 1482666
+    flags = 1
+    data = length 169, hash AF2B68C2
+  sample 71:
+    time = 1504000
+    flags = 1
+    data = length 169, hash 34806889
+  sample 72:
+    time = 1525333
+    flags = 1
+    data = length 179, hash 10F4F845
+  sample 73:
+    time = 1546666
+    flags = 1
+    data = length 178, hash 1C0BB141
+  sample 74:
+    time = 1568000
+    flags = 1
+    data = length 169, hash EBC2F9D3
+  sample 75:
+    time = 1589333
+    flags = 1
+    data = length 173, hash 87114F06
+  sample 76:
+    time = 1610666
+    flags = 1
+    data = length 184, hash 2DCFDAA7
+  sample 77:
+    time = 1632000
+    flags = 1
+    data = length 160, hash 960E95E9
+  sample 78:
+    time = 1653333
+    flags = 1
+    data = length 171, hash 30A7ADC9
+  sample 79:
+    time = 1674666
+    flags = 1
+    data = length 165, hash E258987C
+  sample 80:
+    time = 1696000
+    flags = 1
+    data = length 171, hash B553EC5
+  sample 81:
+    time = 1717333
+    flags = 1
+    data = length 167, hash C256FC27
+  sample 82:
+    time = 1738666
+    flags = 1
+    data = length 164, hash 95C5ED7A
+  sample 83:
+    time = 1760000
+    flags = 1
+    data = length 165, hash 65D52DCA
+  sample 84:
+    time = 1781333
+    flags = 1
+    data = length 167, hash C13D6CCD
+  sample 85:
+    time = 1802666
+    flags = 1
+    data = length 161, hash 2DA3FE8B
+  sample 86:
+    time = 1824000
+    flags = 1
+    data = length 162, hash AF340292
+  sample 87:
+    time = 1845333
+    flags = 1
+    data = length 185, hash 38CC26E7
+  sample 88:
+    time = 1866666
+    flags = 1
+    data = length 163, hash 17095A46
+  sample 89:
+    time = 1888000
+    flags = 1
+    data = length 175, hash 21DD31A8
+  sample 90:
+    time = 1909333
+    flags = 1
+    data = length 169, hash 4DDB17F7
+  sample 91:
+    time = 1930666
+    flags = 1
+    data = length 165, hash 8DA098EB
+  sample 92:
+    time = 1952000
+    flags = 1
+    data = length 179, hash 65FD40BF
+  sample 93:
+    time = 1973333
+    flags = 1
+    data = length 166, hash 805972E8
+  sample 94:
+    time = 1994666
+    flags = 1
+    data = length 163, hash F9B1E7A2
+  sample 95:
+    time = 2016000
+    flags = 1
+    data = length 169, hash AC5E2512
+  sample 96:
+    time = 2037333
+    flags = 1
+    data = length 178, hash 73E030EA
+  sample 97:
+    time = 2058666
+    flags = 1
+    data = length 167, hash 886E4400
+  sample 98:
+    time = 2080000
+    flags = 1
+    data = length 194, hash EA99F334
+  sample 99:
+    time = 2101333
+    flags = 1
+    data = length 177, hash C529C5D3
+  sample 100:
+    time = 2122666
+    flags = 1
+    data = length 188, hash 8969BEAE
+  sample 101:
+    time = 2144000
+    flags = 1
+    data = length 166, hash 76FB52D3
+  sample 102:
+    time = 2165333
+    flags = 1
+    data = length 174, hash 1442EEB6
+  sample 103:
+    time = 2186666
+    flags = 1
+    data = length 167, hash 892B25D2
+  sample 104:
+    time = 2208000
+    flags = 1
+    data = length 174, hash 91988BEC
+  sample 105:
+    time = 2229333
+    flags = 1
+    data = length 170, hash 920E2E7D
+  sample 106:
+    time = 2250666
+    flags = 1
+    data = length 170, hash F5E1CBBA
+  sample 107:
+    time = 2272000
+    flags = 1
+    data = length 174, hash C2558A52
+  sample 108:
+    time = 2293333
+    flags = 1
+    data = length 164, hash D9A3323D
+  sample 109:
+    time = 2314666
+    flags = 1
+    data = length 159, hash 8156AA0
+  sample 110:
+    time = 2336000
+    flags = 1
+    data = length 165, hash B5CA640D
+  sample 111:
+    time = 2357333
+    flags = 1
+    data = length 179, hash 3392A228
+  sample 112:
+    time = 2378666
+    flags = 1
+    data = length 161, hash D9D6FEC8
+  sample 113:
+    time = 2400000
+    flags = 1
+    data = length 175, hash 8F43632
+  sample 114:
+    time = 2421333
+    flags = 1
+    data = length 179, hash 8E946EFB
+  sample 115:
+    time = 2442666
+    flags = 1
+    data = length 154, hash 9563E77D
+  sample 116:
+    time = 2464000
+    flags = 1
+    data = length 181, hash C575F000
+  sample 117:
+    time = 2485333
+    flags = 1
+    data = length 178, hash 93B541B4
+  sample 118:
+    time = 2506666
+    flags = 1
+    data = length 175, hash E57C55F1
+  sample 119:
+    time = 2528000
+    flags = 1
+    data = length 179, hash D076F3F4
+  sample 120:
+    time = 2549333
+    flags = 1
+    data = length 174, hash 7C0E3CFB
+  sample 121:
+    time = 2570666
+    flags = 1
+    data = length 184, hash AC26359D
+  sample 122:
+    time = 2592000
+    flags = 1
+    data = length 177, hash C7A7B641
+  sample 123:
+    time = 2613333
+    flags = 1
+    data = length 175, hash 354ED162
+  sample 124:
+    time = 2634666
+    flags = 1
+    data = length 169, hash F12225C2
+  sample 125:
+    time = 2656000
+    flags = 1
+    data = length 167, hash 49F08C6
+  sample 126:
+    time = 2677333
+    flags = 1
+    data = length 162, hash C67AF2C8
+  sample 127:
+    time = 2698666
+    flags = 1
+    data = length 159, hash F04C3CA1
+  sample 128:
+    time = 2720000
+    flags = 1
+    data = length 173, hash 3F3434E5
+  sample 129:
+    time = 2741333
+    flags = 1
+    data = length 156, hash 845C5F69
+  sample 130:
+    time = 2762666
+    flags = 1
+    data = length 161, hash FD8BB65F
+  sample 131:
+    time = 2784000
+    flags = 1
+    data = length 153, hash F6C79C63
+  sample 132:
+    time = 2805333
+    flags = 1
+    data = length 167, hash EE49B051
+  sample 133:
+    time = 2826666
+    flags = 1
+    data = length 162, hash 71DEF41F
+  sample 134:
+    time = 2848000
+    flags = 1
+    data = length 167, hash 257E8DCA
+  sample 135:
+    time = 2869333
+    flags = 1
+    data = length 174, hash 5A185F3A
+  sample 136:
+    time = 2890666
+    flags = 1
+    data = length 181, hash F2FEC2F0
+  sample 137:
+    time = 2912000
+    flags = 1
+    data = length 185, hash 218242A7
+  sample 138:
+    time = 2933333
+    flags = 1
+    data = length 181, hash 8D67187A
+  sample 139:
+    time = 2954666
+    flags = 1
+    data = length 173, hash 1E3DA0DB
+  sample 140:
+    time = 2976000
+    flags = 1
+    data = length 157, hash F73274A4
+  sample 141:
+    time = 2997333
+    flags = 1
+    data = length 194, hash 7DFA32C8
+  sample 142:
+    time = 3018666
+    flags = 1
+    data = length 175, hash 22108019
+  sample 143:
+    time = 3040000
+    flags = 1
+    data = length 178, hash FEB9BA23
+  sample 144:
+    time = 3061333
+    flags = 1
+    data = length 166, hash B070463
+  sample 145:
+    time = 3082666
+    flags = 1
+    data = length 169, hash 57EDC3BD
+  sample 146:
+    time = 3104000
+    flags = 1
+    data = length 181, hash D2A540C7
+  sample 147:
+    time = 3125333
+    flags = 1
+    data = length 155, hash D1629748
+  sample 148:
+    time = 3146666
+    flags = 1
+    data = length 186, hash C5F4C6AD
+  sample 149:
+    time = 3168000
+    flags = 1
+    data = length 156, hash 97857E74
+  sample 150:
+    time = 3189333
+    flags = 1
+    data = length 202, hash B5F815E3
+  sample 151:
+    time = 3210666
+    flags = 1
+    data = length 178, hash 7820DAA1
+  sample 152:
+    time = 3232000
+    flags = 1
+    data = length 161, hash 14FAA152
+  sample 153:
+    time = 3253333
+    flags = 1
+    data = length 165, hash BBEC43EA
+  sample 154:
+    time = 3274666
+    flags = 1
+    data = length 172, hash B98ED015
+  sample 155:
+    time = 3296000
+    flags = 1
+    data = length 162, hash 5E595366
+  sample 156:
+    time = 3317333
+    flags = 1
+    data = length 172, hash 39601393
+  sample 157:
+    time = 3338666
+    flags = 1
+    data = length 173, hash 150033AA
+  sample 158:
+    time = 3360000
+    flags = 1
+    data = length 152, hash A971F99D
+  sample 159:
+    time = 3381333
+    flags = 1
+    data = length 162, hash 54681025
+  sample 160:
+    time = 3402666
+    flags = 1
+    data = length 168, hash 8C1C19EE
+  sample 161:
+    time = 3424000
+    flags = 1
+    data = length 165, hash A2557EBD
+  sample 162:
+    time = 3445333
+    flags = 1
+    data = length 168, hash D833CD5D
+  sample 163:
+    time = 3466666
+    flags = 1
+    data = length 163, hash 750247C0
+  sample 164:
+    time = 3488000
+    flags = 1
+    data = length 168, hash EFBF636
+  sample 165:
+    time = 3509333
+    flags = 1
+    data = length 189, hash 68CEA5AF
+  sample 166:
+    time = 3530666
+    flags = 1
+    data = length 167, hash DE56A8E7
+  sample 167:
+    time = 3552000
+    flags = 1
+    data = length 177, hash D27991AE
+  sample 168:
+    time = 3573333
+    flags = 1
+    data = length 161, hash 828648C9
+  sample 169:
+    time = 3594666
+    flags = 1
+    data = length 187, hash E231E64D
+  sample 170:
+    time = 3616000
+    flags = 1
+    data = length 157, hash 135FB77A
+  sample 171:
+    time = 3637333
+    flags = 1
+    data = length 168, hash 59E6AD22
+  sample 172:
+    time = 3658666
+    flags = 1
+    data = length 182, hash EA22527D
+  sample 173:
+    time = 3680000
+    flags = 1
+    data = length 165, hash 60971FFE
+  sample 174:
+    time = 3701333
+    flags = 1
+    data = length 168, hash B7B02AD2
+  sample 175:
+    time = 3722666
+    flags = 1
+    data = length 171, hash EBF1904C
+  sample 176:
+    time = 3744000
+    flags = 1
+    data = length 174, hash 759187E
+  sample 177:
+    time = 3765333
+    flags = 1
+    data = length 170, hash A7AA0960
+  sample 178:
+    time = 3786666
+    flags = 1
+    data = length 173, hash DC28BDA
+  sample 179:
+    time = 3808000
+    flags = 1
+    data = length 159, hash 2C7A6206
+  sample 180:
+    time = 3829333
+    flags = 1
+    data = length 176, hash EC1F4AA4
+  sample 181:
+    time = 3850666
+    flags = 1
+    data = length 164, hash 94B7AB68
+  sample 182:
+    time = 3872000
+    flags = 1
+    data = length 178, hash 99C2763F
+  sample 183:
+    time = 3893333
+    flags = 1
+    data = length 162, hash AF49D3A7
+  sample 184:
+    time = 3914666
+    flags = 1
+    data = length 158, hash 3F04BF69
+  sample 185:
+    time = 3936000
+    flags = 1
+    data = length 198, hash 48E7DFD5
+  sample 186:
+    time = 3957333
+    flags = 1
+    data = length 182, hash B883D24F
+  sample 187:
+    time = 3978666
+    flags = 1
+    data = length 188, hash F02C5B3
+  sample 188:
+    time = 4000000
+    flags = 1
+    data = length 155, hash 32307E72
+  sample 189:
+    time = 4021333
+    flags = 1
+    data = length 166, hash BAFDBA39
+  sample 190:
+    time = 4042666
+    flags = 1
+    data = length 160, hash 25701D65
+  sample 191:
+    time = 4064000
+    flags = 1
+    data = length 181, hash 6A4CB4FD
+  sample 192:
+    time = 4085333
+    flags = 1
+    data = length 169, hash DB2A4C7D
+  sample 193:
+    time = 4106666
+    flags = 1
+    data = length 182, hash 274B85F2
+  sample 194:
+    time = 4128000
+    flags = 1
+    data = length 163, hash A594B098
+  sample 195:
+    time = 4149333
+    flags = 1
+    data = length 188, hash 13A19913
+  sample 196:
+    time = 4170666
+    flags = 1
+    data = length 164, hash 722858E1
+  sample 197:
+    time = 4192000
+    flags = 1
+    data = length 170, hash B54283F9
+  sample 198:
+    time = 4213333
+    flags = 1
+    data = length 192, hash DCADA870
+  sample 199:
+    time = 4234666
+    flags = 1
+    data = length 177, hash 11EAD371
+  sample 200:
+    time = 4256000
+    flags = 1
+    data = length 166, hash 71966FD5
+  sample 201:
+    time = 4277333
+    flags = 1
+    data = length 169, hash 36C071C6
+  sample 202:
+    time = 4298666
+    flags = 1
+    data = length 163, hash 58C8BAF6
+  sample 203:
+    time = 4320000
+    flags = 1
+    data = length 166, hash 42D6CA6A
+  sample 204:
+    time = 4341333
+    flags = 1
+    data = length 170, hash 8E1BB65E
+  sample 205:
+    time = 4362666
+    flags = 1
+    data = length 172, hash B071B6B6
+  sample 206:
+    time = 4384000
+    flags = 1
+    data = length 170, hash 266BFE19
+  sample 207:
+    time = 4405333
+    flags = 1
+    data = length 180, hash 170BC158
+  sample 208:
+    time = 4426666
+    flags = 1
+    data = length 172, hash 2B1AF0A3
+  sample 209:
+    time = 4448000
+    flags = 1
+    data = length 163, hash B068746F
+  sample 210:
+    time = 4469333
+    flags = 1
+    data = length 171, hash C8F7D374
+  sample 211:
+    time = 4490666
+    flags = 1
+    data = length 162, hash 29E5B0C
+  sample 212:
+    time = 4512000
+    flags = 1
+    data = length 174, hash 8AC5832A
+  sample 213:
+    time = 4533333
+    flags = 1
+    data = length 166, hash 4EE19A7D
+  sample 214:
+    time = 4554666
+    flags = 1
+    data = length 161, hash 5563574A
+  sample 215:
+    time = 4576000
+    flags = 1
+    data = length 162, hash 87823FF
+  sample 216:
+    time = 4597333
+    flags = 1
+    data = length 166, hash 170CD14E
+  sample 217:
+    time = 4618666
+    flags = 1
+    data = length 179, hash FE2E5FCE
+  sample 218:
+    time = 4640000
+    flags = 1
+    data = length 175, hash 81DC4FF4
+  sample 219:
+    time = 4661333
+    flags = 1
+    data = length 174, hash 48F1E0EE
+  sample 220:
+    time = 4682666
+    flags = 1
+    data = length 176, hash A0099477
+  sample 221:
+    time = 4704000
+    flags = 1
+    data = length 177, hash 50D6F2E9
+  sample 222:
+    time = 4725333
+    flags = 1
+    data = length 172, hash DB542517
+  sample 223:
+    time = 4746666
+    flags = 1
+    data = length 170, hash FD0A0BE4
+  sample 224:
+    time = 4768000
+    flags = 1
+    data = length 182, hash 783C2DC6
+  sample 225:
+    time = 4789333
+    flags = 1
+    data = length 153, hash FE6BB549
+  sample 226:
+    time = 4810666
+    flags = 1
+    data = length 170, hash D0933F6A
+  sample 227:
+    time = 4832000
+    flags = 1
+    data = length 161, hash 3B795608
+  sample 228:
+    time = 4853333
+    flags = 1
+    data = length 167, hash 65ED3D19
+  sample 229:
+    time = 4874666
+    flags = 1
+    data = length 171, hash A267A152
+  sample 230:
+    time = 4896000
+    flags = 1
+    data = length 179, hash 7B183050
+  sample 231:
+    time = 4917333
+    flags = 1
+    data = length 150, hash F9DC2CB3
+  sample 232:
+    time = 4938666
+    flags = 1
+    data = length 169, hash 111F15E
+  sample 233:
+    time = 4960000
+    flags = 1
+    data = length 161, hash A87D9061
+  sample 234:
+    time = 4981333
+    flags = 1
+    data = length 183, hash 7AFA8695
+  sample 235:
+    time = 5002666
+    flags = 1
+    data = length 177, hash 9B03255C
+  sample 236:
+    time = 5024000
+    flags = 1
+    data = length 185, hash EE2F3E6F
+  sample 237:
+    time = 5045333
+    flags = 1
+    data = length 168, hash 79E9EDCE
+  sample 238:
+    time = 5066666
+    flags = 1
+    data = length 177, hash CD48D9FF
+  sample 239:
+    time = 5088000
+    flags = 1
+    data = length 204, hash D8882331
+  sample 240:
+    time = 5109333
+    flags = 1
+    data = length 186, hash 3E8A417A
+  sample 241:
+    time = 5130666
+    flags = 1
+    data = length 171, hash 8474704
+  sample 242:
+    time = 5152000
+    flags = 1
+    data = length 176, hash 38FE2FEA
+  sample 243:
+    time = 5173333
+    flags = 1
+    data = length 182, hash B88B19A4
+  sample 244:
+    time = 5194666
+    flags = 1
+    data = length 171, hash 992529CC
+  sample 245:
+    time = 5216000
+    flags = 1
+    data = length 169, hash 64238D8A
+  sample 246:
+    time = 5237333
+    flags = 1
+    data = length 194, hash 7586032F
+  sample 247:
+    time = 5258666
+    flags = 1
+    data = length 166, hash AEC1E33E
+  sample 248:
+    time = 5280000
+    flags = 1
+    data = length 172, hash F831BEDD
+  sample 249:
+    time = 5301333
+    flags = 1
+    data = length 162, hash EB799853
+  sample 250:
+    time = 5322666
+    flags = 1
+    data = length 168, hash 3BEFF6EA
+  sample 251:
+    time = 5344000
+    flags = 1
+    data = length 168, hash 1989F6BE
+  sample 252:
+    time = 5365333
+    flags = 1
+    data = length 156, hash 5D5FDC92
+  sample 253:
+    time = 5386666
+    flags = 1
+    data = length 191, hash C6FF5D50
+  sample 254:
+    time = 5408000
+    flags = 1
+    data = length 155, hash FEE8CA98
+  sample 255:
+    time = 5429333
+    flags = 1
+    data = length 159, hash 2D47EF30
+  sample 256:
+    time = 5450666
+    flags = 1
+    data = length 159, hash 99AD5247
+  sample 257:
+    time = 5472000
+    flags = 1
+    data = length 167, hash 87CCAF58
+  sample 258:
+    time = 5493333
+    flags = 1
+    data = length 186, hash E4F3ACF2
+  sample 259:
+    time = 5514666
+    flags = 1
+    data = length 172, hash AB222534
+  sample 260:
+    time = 5536000
+    flags = 1
+    data = length 174, hash 68FBD8EB
+  sample 261:
+    time = 5557333
+    flags = 1
+    data = length 172, hash 6C67A846
+  sample 262:
+    time = 5578666
+    flags = 1
+    data = length 179, hash 1D0CA224
+  sample 263:
+    time = 5600000
+    flags = 1
+    data = length 171, hash 4B7F5AB6
+  sample 264:
+    time = 5621333
+    flags = 1
+    data = length 178, hash 32F6F816
+  sample 265:
+    time = 5642666
+    flags = 1
+    data = length 163, hash D5FBB752
+  sample 266:
+    time = 5664000
+    flags = 1
+    data = length 175, hash 82222CCF
+  sample 267:
+    time = 5685333
+    flags = 1
+    data = length 166, hash DCB51A49
+  sample 268:
+    time = 5706666
+    flags = 1
+    data = length 171, hash 990146B2
+  sample 269:
+    time = 5728000
+    flags = 1
+    data = length 163, hash 668EC234
+  sample 270:
+    time = 5749333
+    flags = 1
+    data = length 160, hash BE4633EF
+  sample 271:
+    time = 5770666
+    flags = 1
+    data = length 172, hash 43D115D6
+  sample 272:
+    time = 5792000
+    flags = 1
+    data = length 166, hash 52695342
+  sample 273:
+    time = 5813333
+    flags = 1
+    data = length 156, hash 989D07F9
+  sample 274:
+    time = 5834666
+    flags = 1
+    data = length 180, hash E6B80EBF
+  sample 275:
+    time = 5856000
+    flags = 1
+    data = length 179, hash F94F7112
+  sample 276:
+    time = 5877333
+    flags = 1
+    data = length 175, hash C185F5E0
+  sample 277:
+    time = 5898666
+    flags = 1
+    data = length 167, hash 58923C20
+  sample 278:
+    time = 5920000
+    flags = 1
+    data = length 171, hash 704C1ADB
+  sample 279:
+    time = 5941333
+    flags = 1
+    data = length 165, hash 3E5C7A05
+  sample 280:
+    time = 5962666
+    flags = 1
+    data = length 188, hash 58766D0D
+  sample 281:
+    time = 5984000
+    flags = 1
+    data = length 179, hash C886193F
+  sample 282:
+    time = 6005333
+    flags = 1
+    data = length 187, hash 931CD427
+  sample 283:
+    time = 6026666
+    flags = 1
+    data = length 187, hash 5FD06890
+  sample 284:
+    time = 6048000
+    flags = 1
+    data = length 174, hash F87B4771
+  sample 285:
+    time = 6069333
+    flags = 1
+    data = length 159, hash 27BD2A84
+  sample 286:
+    time = 6090666
+    flags = 1
+    data = length 168, hash DDAFF9E3
+  sample 287:
+    time = 6112000
+    flags = 1
+    data = length 185, hash BE916543
+  sample 288:
+    time = 6133333
+    flags = 1
+    data = length 159, hash C53F10C
+  sample 289:
+    time = 6154666
+    flags = 1
+    data = length 175, hash C9C0D2C7
+  sample 290:
+    time = 6176000
+    flags = 1
+    data = length 184, hash C99D9EC8
+  sample 291:
+    time = 6197333
+    flags = 1
+    data = length 170, hash C349CB9B
+  sample 292:
+    time = 6218666
+    flags = 1
+    data = length 177, hash 3856045C
+  sample 293:
+    time = 6240000
+    flags = 1
+    data = length 171, hash DFA7F7C7
+  sample 294:
+    time = 6261333
+    flags = 1
+    data = length 154, hash 6E4EF65E
+  sample 295:
+    time = 6282666
+    flags = 1
+    data = length 166, hash B9D2690C
+  sample 296:
+    time = 6304000
+    flags = 1
+    data = length 166, hash AB3E1F6D
+  sample 297:
+    time = 6325333
+    flags = 1
+    data = length 159, hash 20CA6B12
+  sample 298:
+    time = 6346666
+    flags = 1
+    data = length 160, hash 39C9E025
+  sample 299:
+    time = 6368000
+    flags = 1
+    data = length 175, hash 9D2F8212
+  sample 300:
+    time = 6389333
+    flags = 1
+    data = length 166, hash 1D37706B
+  sample 301:
+    time = 6410666
+    flags = 1
+    data = length 163, hash 5370A36
+  sample 302:
+    time = 6432000
+    flags = 1
+    data = length 167, hash 151ED105
+  sample 303:
+    time = 6453333
+    flags = 1
+    data = length 165, hash 6BA95349
+  sample 304:
+    time = 6474666
+    flags = 1
+    data = length 168, hash 208061C4
+  sample 305:
+    time = 6496000
+    flags = 1
+    data = length 171, hash 47196B
+  sample 306:
+    time = 6517333
+    flags = 1
+    data = length 173, hash A84A5647
+  sample 307:
+    time = 6538666
+    flags = 1
+    data = length 159, hash EFFE863F
+  sample 308:
+    time = 6560000
+    flags = 1
+    data = length 180, hash 2C3E14BD
+  sample 309:
+    time = 6581333
+    flags = 1
+    data = length 167, hash E32650E3
+  sample 310:
+    time = 6602666
+    flags = 1
+    data = length 181, hash 60928DBD
+  sample 311:
+    time = 6624000
+    flags = 1
+    data = length 182, hash BF86D886
+  sample 312:
+    time = 6645333
+    flags = 1
+    data = length 161, hash 661C82CE
+  sample 313:
+    time = 6666666
+    flags = 1
+    data = length 164, hash 2B56DE78
+  sample 314:
+    time = 6688000
+    flags = 1
+    data = length 173, hash 9F25C44C
+  sample 315:
+    time = 6709333
+    flags = 1
+    data = length 167, hash ECF62146
+  sample 316:
+    time = 6730666
+    flags = 1
+    data = length 160, hash 2894B220
+  sample 317:
+    time = 6752000
+    flags = 1
+    data = length 173, hash D07FA194
+  sample 318:
+    time = 6773333
+    flags = 1
+    data = length 173, hash 8AE2AFF
+  sample 319:
+    time = 6794666
+    flags = 1
+    data = length 167, hash 89488281
+  sample 320:
+    time = 6816000
+    flags = 1
+    data = length 184, hash 2BA44F72
+  sample 321:
+    time = 6837333
+    flags = 1
+    data = length 168, hash 60DD40E
+  sample 322:
+    time = 6858666
+    flags = 1
+    data = length 171, hash 4D146644
+  sample 323:
+    time = 6880000
+    flags = 1
+    data = length 173, hash 94B5056B
+  sample 324:
+    time = 6901333
+    flags = 1
+    data = length 157, hash F128CA2A
+  sample 325:
+    time = 6922666
+    flags = 1
+    data = length 177, hash 678A3280
+  sample 326:
+    time = 6944000
+    flags = 1
+    data = length 173, hash A3C647E8
+  sample 327:
+    time = 6965333
+    flags = 1
+    data = length 161, hash 135CDACB
+  sample 328:
+    time = 6986666
+    flags = 1
+    data = length 170, hash 574C87F1
+  sample 329:
+    time = 7008000
+    flags = 1
+    data = length 165, hash E1DCD3B5
+  sample 330:
+    time = 7029333
+    flags = 1
+    data = length 154, hash 9B9937D9
+  sample 331:
+    time = 7050666
+    flags = 1
+    data = length 183, hash 72C85716
+  sample 332:
+    time = 7072000
+    flags = 1
+    data = length 175, hash 2C1123FA
+  sample 333:
+    time = 7093333
+    flags = 1
+    data = length 181, hash 65C95CED
+  sample 334:
+    time = 7114666
+    flags = 1
+    data = length 162, hash AA397C61
+  sample 335:
+    time = 7136000
+    flags = 1
+    data = length 168, hash 29FF4314
+  sample 336:
+    time = 7157333
+    flags = 1
+    data = length 166, hash 312732D1
+  sample 337:
+    time = 7178666
+    flags = 1
+    data = length 190, hash F53922A9
+  sample 338:
+    time = 7200000
+    flags = 1
+    data = length 174, hash 7A33F241
+  sample 339:
+    time = 7221333
+    flags = 1
+    data = length 173, hash EC5DF9C4
+  sample 340:
+    time = 7242666
+    flags = 1
+    data = length 167, hash 58849B44
+  sample 341:
+    time = 7264000
+    flags = 1
+    data = length 168, hash E807AD20
+  sample 342:
+    time = 7285333
+    flags = 1
+    data = length 179, hash 85BB5E00
+  sample 343:
+    time = 7306666
+    flags = 1
+    data = length 170, hash D60F937D
+  sample 344:
+    time = 7328000
+    flags = 1
+    data = length 181, hash 12A9D8EF
+  sample 345:
+    time = 7349333
+    flags = 1
+    data = length 171, hash 8AA7E1B0
+  sample 346:
+    time = 7370666
+    flags = 1
+    data = length 169, hash E3760583
+  sample 347:
+    time = 7392000
+    flags = 1
+    data = length 181, hash 6B0075E2
+  sample 348:
+    time = 7413333
+    flags = 1
+    data = length 175, hash 74513962
+  sample 349:
+    time = 7434666
+    flags = 1
+    data = length 181, hash 960824B5
+  sample 350:
+    time = 7456000
+    flags = 1
+    data = length 171, hash 263869DA
+  sample 351:
+    time = 7477333
+    flags = 1
+    data = length 161, hash 8C46D624
+  sample 352:
+    time = 7498666
+    flags = 1
+    data = length 169, hash 1451B16D
+  sample 353:
+    time = 7520000
+    flags = 1
+    data = length 154, hash 7628D5E9
+  sample 354:
+    time = 7541333
+    flags = 1
+    data = length 176, hash 6D875427
+  sample 355:
+    time = 7562666
+    flags = 1
+    data = length 196, hash 5CA30BB3
+  sample 356:
+    time = 7584000
+    flags = 1
+    data = length 167, hash A9B1E4E
+  sample 357:
+    time = 7605333
+    flags = 1
+    data = length 165, hash E4980930
+  sample 358:
+    time = 7626666
+    flags = 1
+    data = length 174, hash CD4F2E37
+  sample 359:
+    time = 7648000
+    flags = 1
+    data = length 168, hash FFF10F7
+  sample 360:
+    time = 7669333
+    flags = 1
+    data = length 168, hash 7A97DECD
+  sample 361:
+    time = 7690666
+    flags = 1
+    data = length 167, hash B8B47D4C
+  sample 362:
+    time = 7712000
+    flags = 1
+    data = length 174, hash 18279BAC
+  sample 363:
+    time = 7733333
+    flags = 1
+    data = length 176, hash D43DE64A
+  sample 364:
+    time = 7754666
+    flags = 1
+    data = length 177, hash 175E74E6
+  sample 365:
+    time = 7776000
+    flags = 1
+    data = length 171, hash AAD5EB42
+  sample 366:
+    time = 7797333
+    flags = 1
+    data = length 176, hash 8FA35FBC
+  sample 367:
+    time = 7818666
+    flags = 1
+    data = length 162, hash 8726C5B7
+  sample 368:
+    time = 7840000
+    flags = 1
+    data = length 166, hash FD4F2FEE
+  sample 369:
+    time = 7861333
+    flags = 1
+    data = length 166, hash 3568DDA5
+  sample 370:
+    time = 7882666
+    flags = 1
+    data = length 171, hash 76D36F8C
+  sample 371:
+    time = 7904000
+    flags = 1
+    data = length 170, hash BE669868
+  sample 372:
+    time = 7925333
+    flags = 1
+    data = length 188, hash 2E2111D8
+  sample 373:
+    time = 7946666
+    flags = 1
+    data = length 179, hash D8B73981
+  sample 374:
+    time = 7968000
+    flags = 1
+    data = length 164, hash CA72E084
+  sample 375:
+    time = 7989333
+    flags = 1
+    data = length 168, hash 4554826B
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/media/mp4/sample_fragmented_variable_length_sgpd.mp4 b/libraries/test_data/src/test/assets/media/mp4/sample_fragmented_variable_length_sgpd.mp4
new file mode 100644
index 00000000000..a0d20e91310
Binary files /dev/null and b/libraries/test_data/src/test/assets/media/mp4/sample_fragmented_variable_length_sgpd.mp4 differ