Adding check for creating captions with dash_only and hls_only. (#761)

Fix the problems in the previous CL for #651.

docs/source/tutorials/dash_hls_example.rst

@@ -16,8 +16,8 @@ playlists as well as DASH manifests.
 
     $ packager \
       'in=h264_baseline_360p_600.mp4,stream=audio,init_segment=audio/init.mp4,segment_template=audio/$Number$.m4s' \
-      'in=input_text.vtt,stream=text,init_segment=text/init.mp4,segment_template=text/$Number$.m4s,dash_only=true' \
+      'in=input_text.vtt,stream=text,init_segment=text/init.mp4,segment_template=text/$Number$.m4s,dash_only=1' \
-      'in=input_text.vtt,stream=text,segment_template=text/$Number$.vtt,hls_only=true' \
+      'in=input_text.vtt,stream=text,segment_template=text/$Number$.vtt,hls_only=1' \
       'in=h264_baseline_360p_600.mp4,stream=video,init_segment=h264_360p/init.mp4,segment_template=h264_360p/$Number$.m4s' \
       'in=h264_main_480p_1000.mp4,stream=video,init_segment=h264_480p/init.mp4,segment_template=h264_480p/$Number$.m4s' \
       'in=h264_main_720p_3000.mp4,stream=video,init_segment=h264_720p/init.mp4,segment_template=h264_720p/$Number$.m4s' \

packager/app/test/packager_test.py

@@ -719,6 +719,29 @@ class PackagerFunctionalTest(PackagerAppTest):
     # order of trick play factors gets the same mpd.
     self._CheckTestResults('audio-video-with-two-trick-play')
 
+  def testDashOnlyAndHlsOnlyWithCaptions(self):
+    audio_video_streams = self._GetStreams(['audio', 'video'], segmented=True)
+    dash_text_stream = self._GetStreams(['text'],
+                                        test_files=['bear-english.vtt'],
+                                        output_format='mp4',
+                                        segmented=True,
+                                        dash_only=True)
+    hls_text_stream = self._GetStreams(['text'],
+                                       test_files=['bear-english.vtt'],
+                                       segmented=True,
+                                       hls_only=True)
+    streams = audio_video_streams + dash_text_stream + hls_text_stream
+    self.assertPackageSuccess(streams, self._GetFlags(output_dash=True,
+                                                      output_hls=True))
+    # Mpd cannot be validated right now since we don't generate deterministic
+    # mpd with multiple inputs due to thread racing.
+    # TODO(b/73349711): Generate deterministic mpd or at least validate mpd
+    #                   schema.
+    self._CheckTestResults(
+        'hls-only-dash-only-captions',
+        diff_files_policy=DiffFilesPolicy(
+            allowed_diff_files=['output.mpd'], exact=False))
+
   def testDashOnlyAndHlsOnly(self):
     streams = [
         self._GetStream('video', hls_only=True),

packager/app/test/testdata/hls-only-dash-only-captions/bear-english-text-1.vtt

@@ -0,0 +1,8 @@
+WEBVTT
+
+STYLE
+::cue { color:lime }
+
+00:00:00.000 --> 00:00:00.800
+Yup, that's a bear, eh.
+

packager/app/test/testdata/hls-only-dash-only-captions/bear-english-text-2.vtt

@@ -0,0 +1,8 @@
+WEBVTT
+
+STYLE
+::cue { color:lime }
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-only-dash-only-captions/bear-english-text-3.vtt

@@ -0,0 +1,8 @@
+WEBVTT
+
+STYLE
+::cue { color:lime }
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-only-dash-only-captions/bear-english-text-4.vtt

@@ -0,0 +1,8 @@
+WEBVTT
+
+STYLE
+::cue { color:lime }
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-only-dash-only-captions/bear-english-text-5.vtt

@@ -0,0 +1,8 @@
+WEBVTT
+
+STYLE
+::cue { color:lime }
+
+00:00:01.000 --> 00:00:04.700
+He 's... um... doing bear-like stuff.
+

packager/app/test/testdata/hls-only-dash-only-captions/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_2.m3u8",GROUP-ID="default-audio-group",NAME="stream_2",AUTOSELECT=YES,CHANNELS="2"
+
+#EXT-X-MEDIA:TYPE=SUBTITLES,URI="stream_1.m3u8",GROUP-ID="default-text-group",NAME="stream_1",AUTOSELECT=YES
+
+#EXT-X-STREAM-INF:BANDWIDTH=1108051,AVERAGE-BANDWIDTH=1005999,CODECS="avc1.64001e,mp4a.40.2",RESOLUTION=640x360,FRAME-RATE=29.970,AUDIO="default-audio-group",SUBTITLES="default-text-group"
+stream_3.m3u8

packager/app/test/testdata/hls-only-dash-only-captions/output.mpd

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
+<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" profiles="urn:mpeg:dash:profile:isoff-live:2011" minBufferTime="PT2S" type="dynamic" publishTime="some_time" availabilityStartTime="some_time" minimumUpdatePeriod="PT5S" timeShiftBufferDepth="PT1800S">
+  <Period id="0" start="PT0S">
+    <AdaptationSet id="0" contentType="text" segmentAlignment="true">
+      <Role schemeIdUri="urn:mpeg:dash:role:2011" value="subtitle"/>
+      <Representation id="0" bandwidth="2024" codecs="wvtt" mimeType="application/mp4">
+        <SegmentTemplate timescale="1000" initialization="bear-english-text-init.mp4" media="bear-english-text-$Number$.m4s" startNumber="1">
+          <SegmentTimeline>
+            <S t="0" d="1000" r="4"/>
+          </SegmentTimeline>
+        </SegmentTemplate>
+      </Representation>
+    </AdaptationSet>
+    <AdaptationSet id="1" contentType="video" width="640" height="360" frameRate="30000/1001" segmentAlignment="true" par="16:9">
+      <Representation id="1" bandwidth="974122" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">
+        <SegmentTemplate timescale="30000" initialization="bear-640x360-video-init.mp4" media="bear-640x360-video-$Number$.m4s" startNumber="1">
+          <SegmentTimeline>
+            <S t="0" d="30030" r="1"/>
+            <S t="60060" d="22022"/>
+          </SegmentTimeline>
+        </SegmentTemplate>
+      </Representation>
+    </AdaptationSet>
+    <AdaptationSet id="2" contentType="audio" segmentAlignment="true">
+      <Representation id="2" bandwidth="133929" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
+        <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
+        <SegmentTemplate timescale="44100" initialization="bear-640x360-audio-init.mp4" media="bear-640x360-audio-$Number$.m4s" startNumber="1">
+          <SegmentTimeline>
+            <S t="0" d="45056"/>
+            <S t="45056" d="44032"/>
+            <S t="89088" d="31744"/>
+          </SegmentTimeline>
+        </SegmentTemplate>
+      </Representation>
+    </AdaptationSet>
+  </Period>
+</MPD>

packager/app/test/testdata/hls-only-dash-only-captions/stream_1.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,
+bear-english-text-1.vtt
+#EXTINF:1.000,
+bear-english-text-2.vtt
+#EXTINF:1.000,
+bear-english-text-3.vtt
+#EXTINF:1.000,
+bear-english-text-4.vtt
+#EXTINF:1.000,
+bear-english-text-5.vtt
+#EXT-X-ENDLIST

packager/app/test/testdata/hls-only-dash-only-captions/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="bear-640x360-audio-init.mp4"
+#EXTINF:1.022,
+bear-640x360-audio-1.m4s
+#EXTINF:0.998,
+bear-640x360-audio-2.m4s
+#EXTINF:0.720,
+bear-640x360-audio-3.m4s
+#EXT-X-ENDLIST

packager/app/test/testdata/hls-only-dash-only-captions/stream_3.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="bear-640x360-video-init.mp4"
+#EXTINF:1.001,
+bear-640x360-video-1.m4s
+#EXTINF:1.001,
+bear-640x360-video-2.m4s
+#EXTINF:0.734,
+bear-640x360-video-3.m4s
+#EXT-X-ENDLIST

packager/packager.cc

@@ -602,7 +602,7 @@ Status CreateTextJobs(
               ToMuxerListenerData(stream));
 
       // Check input to ensure that output is possible.
-      if (hls_listener) {
+      if (hls_listener && !stream.dash_only) {
         if (input_container == CONTAINER_TTML) {
           return Status(error::INVALID_ARGUMENT,
                         "HLS does not support TTML in xml format.");
@@ -614,14 +614,15 @@ Status CreateTextJobs(
         }
       }
 
-      if (mpd_notifier && !stream.segment_template.empty()) {
+      if (mpd_notifier && !stream.segment_template.empty() &&
+          !stream.hls_only) {
         return Status(error::INVALID_ARGUMENT,
                       "Cannot create text output for MPD with segment output.");
       }
 
       // If we are outputting to HLS, then create the HLS test pipeline that
       // will create segmented text output.
-      if (hls_listener) {
+      if (hls_listener && !stream.dash_only) {
         RETURN_IF_ERROR(CreateHlsTextJob(stream, packaging_params,
                                          std::move(hls_listener), sync_points,
                                          job_manager));