feat: order streams in manifest based on command-line order (#1329)

This will force the muxer to order streams in the order given on the command-line. Closes #560 Closes #1280 Closes #1313 --------- Co-authored-by: Joey Parrish <[email protected]> Co-authored-by: Cosmin Stejerean <[email protected]>
shaka-project · Feb 14, 2024 · aad2a12 · aad2a12
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diff --git a/docs/source/options/dash_options.rst b/docs/source/options/dash_options.rst
@@ -99,4 +99,9 @@ DASH options
 --low_latency_dash_mode
 
  If enabled, LL-DASH streaming will be used,
- reducing overall latency by decoupling latency from segment duration.
+ reducing overall latency by decoupling latency from segment duration.
+
+--force_cl_index
+
+ True forces the muxer to order streams in the order given 
+ on the command-line. False uses the previous unordered behavior.
diff --git a/docs/source/options/hls_options.rst b/docs/source/options/hls_options.rst
@@ -80,3 +80,8 @@ HLS options
 
  Optional. Defaults to 0 if not specified. If it is set to 1, indicates the
  stream is HLS only.
+
+--force_cl_index
+
+ True forces the muxer to order streams in the order given 
+ on the command-line. False uses the previous unordered behavior.
diff --git a/include/packager/packager.h b/include/packager/packager.h
@@ -9,6 +9,7 @@
 
 #include <cstdint>
 #include <memory>
+#include <optional>
 #include <string>
 #include <vector>
 
@@ -62,6 +63,7 @@ struct PackagingParams {
  /// Only use a single thread to generate output. This is useful in tests to
  /// avoid non-deterministic outputs.
  bool single_threaded = false;
+
  /// DASH MPD related parameters.
  MpdParams mpd_params;
  /// HLS related parameters.
@@ -80,6 +82,9 @@ struct PackagingParams {
 
 /// Defines a single input/output stream.
 struct StreamDescriptor {
+ /// index of the stream to enforce ordering
+ std::optional<uint32_t> index;
+
  /// Input/source media file path or network stream URL. Required.
  std::string input;
 

diff --git a/packager/app/manifest_flags.cc b/packager/app/manifest_flags.cc
@@ -37,3 +37,8 @@ ABSL_FLAG(std::string,
  "",
  "Same as above, but this applies to text tracks only, and "
  "overrides the default language for text tracks.");
+ABSL_FLAG(bool,
+ force_cl_index,
+ true,
+ "True forces the muxer to order streams in the order given "
+ "on the command-line. False uses the previous unordered behavior.");
diff --git a/packager/app/manifest_flags.h b/packager/app/manifest_flags.h
@@ -16,5 +16,6 @@ ABSL_DECLARE_FLAG(double, time_shift_buffer_depth);
 ABSL_DECLARE_FLAG(uint64_t, preserved_segments_outside_live_window);
 ABSL_DECLARE_FLAG(std::string, default_language);
 ABSL_DECLARE_FLAG(std::string, default_text_language);
+ABSL_DECLARE_FLAG(bool, force_cl_index);
 
 #endif // PACKAGER_APP_MANIFEST_FLAGS_H_
diff --git a/packager/app/packager_main.cc b/packager/app/packager_main.cc
@@ -583,6 +583,14 @@ int PackagerMain(int argc, char** argv) {
  return kArgumentValidationFailed;
  stream_descriptors.push_back(stream_descriptor.value());
  }
+
+ if (absl::GetFlag(FLAGS_force_cl_index)) {
+ int index = 0;
+ for (auto& descriptor : stream_descriptors) {
+ descriptor.index = index++;
+ }
+ }
+
  Packager packager;
  Status status =
  packager.Initialize(packaging_params.value(), stream_descriptors);

diff --git a/packager/app/test/packager_test.py b/packager/app/test/packager_test.py
@@ -474,7 +474,9 @@ def _GetFlags(self,
  segment_duration=1.0,
  use_fake_clock=True,
  allow_codec_switching=False,
- dash_force_segment_list=False):
+ dash_force_segment_list=False,
+ force_cl_index=False):
+
  flags = ['--single_threaded']
 
  if not strip_parameter_set_nalus:
@@ -558,6 +560,9 @@ def _GetFlags(self,
  if allow_codec_switching:
  flags += ['--allow_codec_switching']
 
+ if force_cl_index:
+ flags += ['--force_cl_index']
+
  if ad_cues:
  flags += ['--ad_cues', ad_cues]
 
@@ -1657,6 +1662,49 @@ def testAllowCodecSwitchingWithEncryptionAndTrickplay(self):
  self._CheckTestResults(
  'audio-video-with-codec-switching-encryption-trick-play')
 
+ def testForcedCommandlineOrdering(self):
+ streams = [
+ self._GetStream('text', test_file='bear-english.vtt'),
+ self._GetStream('audio', test_file='bear-640x360.mp4'),
+ self._GetStream('video', test_file='bear-640x360-hevc.mp4'),
+ self._GetStream('video', test_file='bear-1280x720.mp4'),
+ self._GetStream('video', test_file='bear-640x360.mp4'),
+ ]
+
+ self.assertPackageSuccess(streams,
+ self._GetFlags(output_dash=True, output_hls=True,
+ force_cl_index=True))
+ self._CheckTestResults('forced-commandline-ordering')
+
+ def testAllowCodecSwitchingWithCommandlineOrdering(self):
+ streams = [
+ self._GetStream('audio', test_file='bear-640x360.mp4'),
+ self._GetStream('video', test_file='bear-640x360-hevc.mp4'),
+ self._GetStream('video', test_file='bear-640x360.mp4'),
+ self._GetStream('video', test_file='bear-1280x720.mp4'),
+ ]
+
+ self.assertPackageSuccess(streams,
+ self._GetFlags(output_dash=True,
+ allow_codec_switching=True,
+ force_cl_index=True))
+ self._CheckTestResults(
+ 'audio-video-with-codec-switching-and-forced-commandline_order')
+
+ def testAudioVideoWithTrickPlayAndCommandlineOrdering(self):
+ streams = [
+ self._GetStream('audio', test_file='bear-640x360.mp4'),
+ self._GetStream('video', test_file='bear-640x360-hevc.mp4'),
+ self._GetStream('video', test_file='bear-640x360.mp4'),
+ self._GetStream('video', test_file='bear-1280x720.mp4',
+ trick_play_factor=1),
+ ]
+
+ self.assertPackageSuccess(streams, self._GetFlags(output_dash=True,
+ force_cl_index=True))
+ self._CheckTestResults(
+ 'audio-video-with-trick-play-and-forced-commandline-order')
+
  def testLiveProfileAndEncryption(self):
  self.assertPackageSuccess(
  self._GetStreams(['audio', 'video'], segmented=True),

diff --git a/packager/app/test/testdata/audio-video-with-accessibilities-and-roles/output.mpd b/packager/app/test/testdata/audio-video-with-accessibilities-and-roles/output.mpd
@@ -2,25 +2,25 @@
 <!--Generated with https:/shaka-project/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-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.736067S">
  <Period id="0">
- <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
- <Representation id="0" bandwidth="973483" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">
- <BaseURL>bear-640x360-video.mp4</BaseURL>
- <SegmentBase indexRange="870-937" timescale="30000">
- <Initialization range="0-869"/>
- </SegmentBase>
- </Representation>
- </AdaptationSet>
- <AdaptationSet id="1" contentType="audio" subsegmentAlignment="true">
+ <AdaptationSet id="0" contentType="audio" subsegmentAlignment="true">
  <Accessibility schemeIdUri="urn:tva:metadata:cs:AudioPurposeCS:2007" value="1"/>
  <Role schemeIdUri="urn:mpeg:dash:role:2011" value="description"/>
- <Representation id="1" bandwidth="133334" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
+ <Representation id="0" bandwidth="133334" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
  <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
  <BaseURL>bear-640x360-audio.mp4</BaseURL>
  <SegmentBase indexRange="804-871" timescale="44100">
  <Initialization range="0-803"/>
  </SegmentBase>
  </Representation>
  </AdaptationSet>
+ <AdaptationSet id="1" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
+ <Representation id="1" bandwidth="973483" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">
+ <BaseURL>bear-640x360-video.mp4</BaseURL>
+ <SegmentBase indexRange="870-937" timescale="30000">
+ <Initialization range="0-869"/>
+ </SegmentBase>
+ </Representation>
+ </AdaptationSet>
  <AdaptationSet id="2" contentType="text" subsegmentAlignment="true">
  <Role schemeIdUri="urn:mpeg:dash:role:2011" value="caption"/>
  <Representation id="2" bandwidth="317" mimeType="text/vtt">

diff --git a/...ata/audio-video-with-codec-switching-and-forced-commandline_order/bear-1280x720-video.mp4 b/...ata/audio-video-with-codec-switching-and-forced-commandline_order/bear-1280x720-video.mp4
diff --git a/...data/audio-video-with-codec-switching-and-forced-commandline_order/bear-640x360-audio.mp4 b/...data/audio-video-with-codec-switching-and-forced-commandline_order/bear-640x360-audio.mp4
diff --git a/...audio-video-with-codec-switching-and-forced-commandline_order/bear-640x360-hevc-video.mp4 b/...audio-video-with-codec-switching-and-forced-commandline_order/bear-640x360-hevc-video.mp4
diff --git a/...data/audio-video-with-codec-switching-and-forced-commandline_order/bear-640x360-video.mp4 b/...data/audio-video-with-codec-switching-and-forced-commandline_order/bear-640x360-video.mp4
diff --git a/...pp/test/testdata/audio-video-with-codec-switching-and-forced-commandline_order/output.mpd b/...pp/test/testdata/audio-video-with-codec-switching-and-forced-commandline_order/output.mpd
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--Generated with https:/shaka-project/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-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.8028S">
+ <Period id="0">
+ <AdaptationSet id="0" contentType="audio" subsegmentAlignment="true">
+ <Representation id="0" bandwidth="133334" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
+ <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
+ <BaseURL>bear-640x360-audio.mp4</BaseURL>
+ <SegmentBase indexRange="804-871" timescale="44100">
+ <Initialization range="0-803"/>
+ </SegmentBase>
+ </Representation>
+ </AdaptationSet>
+ <AdaptationSet id="1" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
+ <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="2"/>
+ <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
+ <Representation id="1" bandwidth="277411" codecs="hev1.1.6.L63.90" mimeType="video/mp4" sar="1:1">
+ <BaseURL>bear-640x360-hevc-video.mp4</BaseURL>
+ <SegmentBase indexRange="1910-1977" timescale="30000">
+ <Initialization range="0-1909"/>
+ </SegmentBase>
+ </Representation>
+ </AdaptationSet>
+ <AdaptationSet id="2" contentType="video" maxWidth="1280" maxHeight="720" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
+ <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="1"/>
+ <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
+ <Representation id="2" bandwidth="973483" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360">
+ <BaseURL>bear-640x360-video.mp4</BaseURL>
+ <SegmentBase indexRange="870-937" timescale="30000">
+ <Initialization range="0-869"/>
+ </SegmentBase>
+ </Representation>
+ <Representation id="3" bandwidth="2627285" codecs="avc1.64001f" mimeType="video/mp4" sar="1:1" width="1280" height="720">
+ <BaseURL>bear-1280x720-video.mp4</BaseURL>
+ <SegmentBase indexRange="869-936" timescale="30000">
+ <Initialization range="0-868"/>
+ </SegmentBase>
+ </Representation>
+ </AdaptationSet>
+ </Period>
+</MPD>
diff --git a/packager/app/test/testdata/audio-video-with-codec-switching-encryption-trick-play/output.mpd b/packager/app/test/testdata/audio-video-with-codec-switching-encryption-trick-play/output.mpd
@@ -2,50 +2,50 @@
 <!--Generated with https:/shaka-project/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" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.8028S">
  <Period id="0">
- <AdaptationSet id="0" contentType="video" maxWidth="1280" maxHeight="720" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
+ <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
  <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>
  <ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b">
  <cenc:pssh>AAAANHBzc2gBAAAAEHfv7MCyTQKs4zweUuL7SwAAAAExMjM0NTY3ODkwMTIzNDU2AAAAAA==</cenc:pssh>
  </ContentProtection>
- <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="2"/>
+ <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="1"/>
  <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
- <Representation id="0" bandwidth="2631545" codecs="avc1.64001f" mimeType="video/mp4" sar="1:1" width="1280" height="720">
- <BaseURL>bear-1280x720-video.mp4</BaseURL>
- <SegmentBase indexRange="1136-1203" timescale="30000">
- <Initialization range="0-1135"/>
- </SegmentBase>
- </Representation>
- <Representation id="3" bandwidth="977743" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360">
- <BaseURL>bear-640x360-video.mp4</BaseURL>
- <SegmentBase indexRange="1138-1205" timescale="30000">
- <Initialization range="0-1137"/>
+ <Representation id="0" bandwidth="281671" codecs="hev1.1.6.L63.90" mimeType="video/mp4" sar="1:1">
+ <BaseURL>bear-640x360-hevc-video.mp4</BaseURL>
+ <SegmentBase indexRange="3222-3289" timescale="30000">
+ <Initialization range="0-3221"/>
  </SegmentBase>
  </Representation>
  </AdaptationSet>
- <AdaptationSet id="1" contentType="video" width="1280" height="720" frameRate="30000/30030" subsegmentAlignment="true" par="16:9">
+ <AdaptationSet id="1" contentType="video" maxWidth="1280" maxHeight="720" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
  <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>
  <ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b">
  <cenc:pssh>AAAANHBzc2gBAAAAEHfv7MCyTQKs4zweUuL7SwAAAAExMjM0NTY3ODkwMTIzNDU2AAAAAA==</cenc:pssh>
  </ContentProtection>
- <EssentialProperty schemeIdUri="http://dashif.org/guidelines/trickmode" value="0"/>
- <Representation id="1" bandwidth="470530" codecs="avc1.64001f" mimeType="video/mp4" sar="1:1" maxPlayoutRate="30" codingDependency="false">
- <BaseURL>bear-1280x720-video-trick_play_factor_1.mp4</BaseURL>
+ <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="0"/>
+ <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
+ <Representation id="1" bandwidth="977743" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360">
+ <BaseURL>bear-640x360-video.mp4</BaseURL>
+ <SegmentBase indexRange="1138-1205" timescale="30000">
+ <Initialization range="0-1137"/>
+ </SegmentBase>
+ </Representation>
+ <Representation id="2" bandwidth="2631545" codecs="avc1.64001f" mimeType="video/mp4" sar="1:1" width="1280" height="720">
+ <BaseURL>bear-1280x720-video.mp4</BaseURL>
  <SegmentBase indexRange="1136-1203" timescale="30000">
  <Initialization range="0-1135"/>
  </SegmentBase>
  </Representation>
  </AdaptationSet>
- <AdaptationSet id="2" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
+ <AdaptationSet id="2" contentType="video" width="1280" height="720" frameRate="30000/30030" subsegmentAlignment="true" par="16:9">
  <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>
  <ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b">
  <cenc:pssh>AAAANHBzc2gBAAAAEHfv7MCyTQKs4zweUuL7SwAAAAExMjM0NTY3ODkwMTIzNDU2AAAAAA==</cenc:pssh>
  </ContentProtection>
- <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="0"/>
- <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
- <Representation id="2" bandwidth="281671" codecs="hev1.1.6.L63.90" mimeType="video/mp4" sar="1:1">
- <BaseURL>bear-640x360-hevc-video.mp4</BaseURL>
- <SegmentBase indexRange="3222-3289" timescale="30000">
- <Initialization range="0-3221"/>
+ <EssentialProperty schemeIdUri="http://dashif.org/guidelines/trickmode" value="1"/>
+ <Representation id="3" bandwidth="470530" codecs="avc1.64001f" mimeType="video/mp4" sar="1:1" maxPlayoutRate="30" codingDependency="false">
+ <BaseURL>bear-1280x720-video-trick_play_factor_1.mp4</BaseURL>
+ <SegmentBase indexRange="1136-1203" timescale="30000">
+ <Initialization range="0-1135"/>
  </SegmentBase>
  </Representation>
  </AdaptationSet>

diff --git a/packager/app/test/testdata/audio-video-with-codec-switching/output.mpd b/packager/app/test/testdata/audio-video-with-codec-switching/output.mpd
@@ -2,29 +2,29 @@
 <!--Generated with https:/shaka-project/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-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.8028S">
  <Period id="0">
- <AdaptationSet id="0" contentType="video" maxWidth="1280" maxHeight="720" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
+ <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
  <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="1"/>
  <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
- <Representation id="0" bandwidth="2627285" codecs="avc1.64001f" mimeType="video/mp4" sar="1:1" width="1280" height="720">
- <BaseURL>bear-1280x720-video.mp4</BaseURL>
- <SegmentBase indexRange="869-936" timescale="30000">
- <Initialization range="0-868"/>
+ <Representation id="0" bandwidth="277411" codecs="hev1.1.6.L63.90" mimeType="video/mp4" sar="1:1">
+ <BaseURL>bear-640x360-hevc-video.mp4</BaseURL>
+ <SegmentBase indexRange="1910-1977" timescale="30000">
+ <Initialization range="0-1909"/>
  </SegmentBase>
  </Representation>
- <Representation id="2" bandwidth="973483" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360">
+ </AdaptationSet>
+ <AdaptationSet id="1" contentType="video" maxWidth="1280" maxHeight="720" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
+ <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="0"/>
+ <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
+ <Representation id="1" bandwidth="973483" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360">
  <BaseURL>bear-640x360-video.mp4</BaseURL>
  <SegmentBase indexRange="870-937" timescale="30000">
  <Initialization range="0-869"/>
  </SegmentBase>
  </Representation>
- </AdaptationSet>
- <AdaptationSet id="1" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
- <SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="0"/>
- <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
- <Representation id="1" bandwidth="277411" codecs="hev1.1.6.L63.90" mimeType="video/mp4" sar="1:1">
- <BaseURL>bear-640x360-hevc-video.mp4</BaseURL>
- <SegmentBase indexRange="1910-1977" timescale="30000">
- <Initialization range="0-1909"/>
+ <Representation id="2" bandwidth="2627285" codecs="avc1.64001f" mimeType="video/mp4" sar="1:1" width="1280" height="720">
+ <BaseURL>bear-1280x720-video.mp4</BaseURL>
+ <SegmentBase indexRange="869-936" timescale="30000">
+ <Initialization range="0-868"/>
  </SegmentBase>
  </Representation>
  </AdaptationSet>