Introduce Dolby Vision video codec and Demuxer support

media/base/video_codecs.h

 // Copyright 2012 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.
 
 #ifndef MEDIA_BASE_VIDEO_CODECS_H_
 #define MEDIA_BASE_VIDEO_CODECS_H_
 
 #include <stdint.h>
 #include <string>
 #include "media/base/media_export.h"
 #include "media/media_features.h"
 
 namespace media {
 
 enum VideoCodec {
   // These values are histogrammed over time; do not change their ordinal
   // values.  When deleting a codec replace it with a dummy value; when adding a
   // codec, do so at the bottom (and update kVideoCodecMax).
   kUnknownVideoCodec = 0,
   kCodecH264,
   kCodecVC1,
   kCodecMPEG2,
   kCodecMPEG4,
   kCodecTheora,
   kCodecVP8,
   kCodecVP9,
   kCodecHEVC,
+  kCodecDolbyVision,
   // DO NOT ADD RANDOM VIDEO CODECS!
   //
   // The only acceptable time to add a new codec is if there is production code
   // that uses said codec in the same CL.
 
-  kVideoCodecMax = kCodecHEVC  // Must equal the last "real" codec above.
+  kVideoCodecMax = kCodecDolbyVision  // Must equal the last "real" codec above.
 };
 
 // Video codec profiles. Keep in sync with mojo::VideoCodecProfile (see
 // media/mojo/interfaces/media_types.mojom), gpu::VideoCodecProfile (see
 // gpu/config/gpu_info.h), and
 // media/base/android/java/src/org/chromium/media/CodecProfileLevelList.java,
 // as well as PP_VideoDecoder_Profile (translation is performed in
 // content/renderer/pepper/ppb_video_decoder_impl.cc).
 // NOTE: These values are histogrammed over time in UMA so the values must
 // never ever change (add new values to tools/metrics/histograms/histograms.xml)
@@ skipping 21 matching lines @@
   VP8PROFILE_MAX = VP8PROFILE_ANY,
   VP9PROFILE_MIN = 12,
   VP9PROFILE_PROFILE0 = VP9PROFILE_MIN,
   VP9PROFILE_PROFILE1 = 13,
   VP9PROFILE_PROFILE2 = 14,
   VP9PROFILE_PROFILE3 = 15,
   VP9PROFILE_MAX = VP9PROFILE_PROFILE3,
   HEVCPROFILE_MIN = 16,
   HEVCPROFILE_MAIN = HEVCPROFILE_MIN,
   HEVCPROFILE_MAIN10 = 17,
   HEVCPROFILE_MAIN_STILL_PICTURE = 18,

[wolenetz, 2017/02/18 00:01:03]

Was there unintentional deletion of HEVCPROFILE_MAX enum value here?

[erickung1, 2017/02/27 17:33:10]

Done.

-  HEVCPROFILE_MAX = HEVCPROFILE_MAIN_STILL_PICTURE,
-  VIDEO_CODEC_PROFILE_MAX = HEVCPROFILE_MAX,
+  DOLBYVISION_MIN = 19,
+  DOLBYVISION_PROFILE0 = DOLBYVISION_MIN,
+  DOLBYVISION_PROFILE4 = 20,
+  DOLBYVISION_PROFILE5 = 21,
+  DOLBYVISION_PROFILE7 = 22,
+  DOLBYVISION_MAX = DOLBYVISION_PROFILE7,
+  VIDEO_CODEC_PROFILE_MAX = DOLBYVISION_MAX,
 };
 
 struct CodecProfileLevel {
   VideoCodec codec;
   VideoCodecProfile profile;
   int level;
 };
 
 std::string MEDIA_EXPORT GetCodecName(VideoCodec codec);
 std::string MEDIA_EXPORT GetProfileName(VideoCodecProfile profile);
@@ skipping 15 matching lines @@
 MEDIA_EXPORT bool ParseAVCCodecId(const std::string& codec_id,
                                   VideoCodecProfile* profile,
                                   uint8_t* level_idc);
 
 #if BUILDFLAG(ENABLE_HEVC_DEMUXING)
 MEDIA_EXPORT bool ParseHEVCCodecId(const std::string& codec_id,
                                    VideoCodecProfile* profile,
                                    uint8_t* level_idc);
 #endif
 
+#if BUILDFLAG(ENABLE_DOLBY_VISION_DEMUXING)
+MEDIA_EXPORT bool ParseDolbyVisionCodecId(const std::string& codec_id,
+                                          VideoCodecProfile* profile,
+                                          uint8_t* level_id);
+#endif
+
 MEDIA_EXPORT VideoCodec StringToVideoCodec(const std::string& codec_id);
 
 #if BUILDFLAG(ENABLE_MSE_MPEG2TS_STREAM_PARSER)
 // Translate legacy avc1 codec ids (like avc1.66.30 or avc1.77.31) into a new
 // style standard avc1 codec ids like avc1.4D002F. If the input codec is not
 // recognized as a legacy codec id, then returns the input string unchanged.
 std::string TranslateLegacyAvc1CodecIds(const std::string& codec_id);
 #endif
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_VIDEO_CODECS_H_