Declare intent to use sample-aes later in the stream.

media/formats/mp2t/es_parser_adts.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/formats/mp2t/es_parser_adts.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 192 matching lines @@
         StreamParserBuffer::CopyFrom(adts_frame.data, adts_frame.size,
                                      is_key_frame, DemuxerStream::AUDIO,
                                      kMp2tAudioTrackId);
     stream_parser_buffer->set_timestamp(current_pts);
     stream_parser_buffer->SetDecodeTimestamp(
         DecodeTimestamp::FromPresentationTime(current_pts));
     stream_parser_buffer->set_duration(frame_duration);
 #if BUILDFLAG(ENABLE_HLS_SAMPLE_AES)
     if (use_hls_sample_aes_) {
       const DecryptConfig* base_decrypt_config = get_decrypt_config_cb_.Run();
-      RCHECK(base_decrypt_config);
-      std::vector<SubsampleEntry> subsamples;
-      CalculateSubsamplesForAdtsFrame(adts_frame, &subsamples);
-      std::unique_ptr<DecryptConfig> decrypt_config(
-          new DecryptConfig(base_decrypt_config->key_id(),
-                            base_decrypt_config->iv(), subsamples));
-      stream_parser_buffer->set_decrypt_config(std::move(decrypt_config));
+      if (base_decrypt_config) {
+        std::vector<SubsampleEntry> subsamples;
+        CalculateSubsamplesForAdtsFrame(adts_frame, &subsamples);
+        std::unique_ptr<DecryptConfig> decrypt_config(
+            new DecryptConfig(base_decrypt_config->key_id(),
+                              base_decrypt_config->iv(), subsamples));
+        stream_parser_buffer->set_decrypt_config(std::move(decrypt_config));
+      }
     }
 #endif
     emit_buffer_cb_.Run(stream_parser_buffer);
 
     // Update the PTS of the next frame.
     audio_timestamp_helper_->AddFrames(kSamplesPerAACFrame);
 
     // Skip the current frame.
     SkipAdtsFrame(adts_frame);
   }
@@ skipping 60 matching lines @@
     // Audio config notification.
     last_audio_decoder_config_ = audio_decoder_config;
     new_audio_config_cb_.Run(audio_decoder_config);
   }
 
   return true;
 }
 
 }  // namespace mp2t
 }  // namespace media