Support HLS MPEG2 TS with SAMPLE-AES encryption.

media/BUILD.gn

 # 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
@@ skipping 20 matching lines @@
     if (!link_pulseaudio) {
       defines += [ "DLOPEN_PULSEAUDIO" ]
     }
   }
   if (use_cras) {
     defines += [ "USE_CRAS" ]
   }
   if (proprietary_codecs && enable_hevc_demuxing) {
     defines += [ "ENABLE_HEVC_DEMUXING" ]
   }
+  if (proprietary_codecs && enable_hls_sample_aes) {
+    defines += [ "ENABLE_HLS_SAMPLE_AES" ]
+  }
 }
 
 config("media_implementation") {
   defines = [ "MEDIA_IMPLEMENTATION" ]
 }
 
 config("media_dependent_config") {
   defines = []
   if (!media_use_libvpx) {
     defines += [ "MEDIA_DISABLE_LIBVPX" ]
@@ skipping 303 matching lines @@
       "formats/mp4/hevc.h",
     ]
     if (media_use_ffmpeg) {
       sources += [
         "filters/ffmpeg_h265_to_annex_b_bitstream_converter.cc",
         "filters/ffmpeg_h265_to_annex_b_bitstream_converter.h",
       ]
     }
   }
 
+  if (proprietary_codecs && enable_hls_sample_aes) {
+    sources += [
+      "formats/mp2t/ts_section_cat.cc",
+      "formats/mp2t/ts_section_cat.h",
+      "formats/mp2t/ts_section_cets_ecm.cc",
+      "formats/mp2t/ts_section_cets_ecm.h",
+      "formats/mp2t/ts_section_cets_pssh.cc",
+      "formats/mp2t/ts_section_cets_pssh.h",
+    ]
+  }
+
   if (current_cpu == "arm" && arm_use_neon) {
     defines += [ "USE_NEON" ]
   }
 
   if (media_use_libvpx) {
     sources += [
       "filters/vpx_video_decoder.cc",
       "filters/vpx_video_decoder.h",
     ]
     deps += [ "//third_party/libvpx_new" ]
@@ skipping 99 matching lines @@
       "mfuuid.lib",
     ]
   }
 
   if (proprietary_codecs) {
     sources += [
       "cdm/cenc_utils.cc",
       "cdm/cenc_utils.h",
       "filters/h264_to_annex_b_bitstream_converter.cc",
       "filters/h264_to_annex_b_bitstream_converter.h",
+      "formats/mp2t/descriptors.cc",
+      "formats/mp2t/descriptors.h",
       "formats/mp2t/es_adapter_video.cc",
       "formats/mp2t/es_adapter_video.h",
       "formats/mp2t/es_parser.cc",
       "formats/mp2t/es_parser.h",
       "formats/mp2t/es_parser_adts.cc",
       "formats/mp2t/es_parser_adts.h",
       "formats/mp2t/es_parser_h264.cc",
       "formats/mp2t/es_parser_h264.h",
       "formats/mp2t/es_parser_mpeg1audio.cc",
       "formats/mp2t/es_parser_mpeg1audio.h",
@@ skipping 270 matching lines @@
     ]
     if (media_use_ffmpeg) {
       sources += [
         "filters/ffmpeg_aac_bitstream_converter_unittest.cc",
         "filters/ffmpeg_h264_to_annex_b_bitstream_converter_unittest.cc",
       ]
     }
     if (enable_hevc_demuxing) {
       sources += [ "filters/h265_parser_unittest.cc" ]
     }
+    if (enable_hls_sample_aes) {
+      deps += [ "//third_party/boringssl" ]

[ddorwin, 2015/12/10 20:10:58]

Is there a reason to use boringssl directly instead of //crypto? The latter
helps ensure we don't use crypto incorrectly.

[dougsteed, 2015/12/14 22:51:45]

Yes. The code in //crypto doesn't support CBC mode without padding. Since this
is just for a unit test I didn't think it worth the effort to make a change in
//crypto.

+    }
   }
 
   if (is_mac || is_ios) {
     deps += [ "//media/base/mac" ]
   }
 
   if (is_mac) {
     sources +=
         [ "capture/video/mac/video_capture_device_factory_mac_unittest.mm" ]
   }
@@ skipping 113 matching lines @@
       "//media/base:test_support",
       "//media/test:pipeline_integration_tests",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/ffmpeg",
       "//ui/gfx:test_support",
       "//ui/gfx/geometry",
     ]
   }
 }