HLS WebVtt End-to-End Tests

Created end-to-end tests for the segmented webvtt text in HLS. The
text stream is longer than both audio and video, so there are more
text segments than video/audio.

Change-Id: Ib860ccd3f2ac0048983fdeebe3847a0b9dcbc160

packager/app/test/packager_test.py

@@ -1371,6 +1371,16 @@ class PackagerFunctionalTest(PackagerAppTest):
     self._AssertStreamInfo(self.output[0], 'is_encrypted: true')
     self._AssertStreamInfo(self.output[1], 'is_encrypted: true')
 
+  def testHlsSegmentedWebVtt(self):
+    streams = self._GetStreams(['audio', 'video'], segmented=True)
+    streams += self._GetStreams(
+        ['text'], test_files=['bear-subtitle-english.vtt'], segmented=True)
+
+    flags = self._GetFlags(output_hls=True)
+
+    self.assertPackageSuccess(streams, flags)
+    self._DiffDir('hls-segmented-webvtt')
+
   def _AssertStreamInfo(self, stream, info):
     stream_info = self.packager.DumpStreamInfo(stream)
     self.assertIn('Found 1 stream(s).', stream_info)

packager/app/test/testdata/hls-segmented-webvtt/output.m3u8

@@ -0,0 +1,9 @@
+#EXTM3U
+## Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>
+
+#EXT-X-MEDIA:TYPE=AUDIO,URI="stream_1.m3u8",GROUP-ID="default-audio-group",NAME="stream_1",AUTOSELECT=YES,CHANNELS="2"
+
+#EXT-X-MEDIA:TYPE=SUBTITLES,URI="stream_0.m3u8",GROUP-ID="default-text-group",NAME="stream_0",AUTOSELECT=YES
+
+#EXT-X-STREAM-INF:BANDWIDTH=1105163,CODECS="avc1.64001e,mp4a.40.2",RESOLUTION=640x360,AUDIO="default-audio-group",SUBTITLES="default-text-group"
+stream_2.m3u8

packager/app/test/testdata/hls-segmented-webvtt/output_text-1.vtt

@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:00.800
+Yup, that's a bear, eh.
+

packager/app/test/testdata/hls-segmented-webvtt/output_text-2.vtt

@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-segmented-webvtt/output_text-3.vtt

@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-segmented-webvtt/output_text-4.vtt

@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-segmented-webvtt/output_text-5.vtt

@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-segmented-webvtt/stream_0.m3u8

@@ -0,0 +1,16 @@
+#EXTM3U
+#EXT-X-VERSION:6
+## Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>
+#EXT-X-TARGETDURATION:2
+#EXT-X-PLAYLIST-TYPE:VOD
+#EXTINF:1.000,
+output_text-1.vtt
+#EXTINF:1.000,
+output_text-2.vtt
+#EXTINF:1.000,
+output_text-3.vtt
+#EXTINF:1.000,
+output_text-4.vtt
+#EXTINF:1.000,
+output_text-5.vtt
+#EXT-X-ENDLIST

packager/app/test/testdata/hls-segmented-webvtt/stream_1.m3u8

@@ -0,0 +1,13 @@
+#EXTM3U
+#EXT-X-VERSION:6
+## Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>
+#EXT-X-TARGETDURATION:2
+#EXT-X-PLAYLIST-TYPE:VOD
+#EXT-X-MAP:URI="output_audio-init.mp4"
+#EXTINF:0.998,
+output_audio-1.m4s
+#EXTINF:0.998,
+output_audio-2.m4s
+#EXTINF:0.766,
+output_audio-3.m4s
+#EXT-X-ENDLIST

packager/app/test/testdata/hls-segmented-webvtt/stream_2.m3u8

@@ -0,0 +1,13 @@
+#EXTM3U
+#EXT-X-VERSION:6
+## Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>
+#EXT-X-TARGETDURATION:2
+#EXT-X-PLAYLIST-TYPE:VOD
+#EXT-X-MAP:URI="output_video-init.mp4"
+#EXTINF:1.001,
+output_video-1.m4s
+#EXTINF:1.001,
+output_video-2.m4s
+#EXTINF:0.734,
+output_video-3.m4s
+#EXT-X-ENDLIST

packager/media/test/data/bear-subtitle-english.vtt

@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:00.800
+Yup, that's a bear, eh.
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.