// 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"
#include "ui/gfx/color_space.h"

namespace media {

class VideoColorSpace;

// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.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 =
      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 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)
// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.media
enum VideoCodecProfile {
  // Keep the values in this enum unique, as they imply format (h.264 vs. VP8,
  // for example), and keep the values for a particular format grouped
  // together for clarity.
  VIDEO_CODEC_PROFILE_UNKNOWN = -1,
  VIDEO_CODEC_PROFILE_MIN = VIDEO_CODEC_PROFILE_UNKNOWN,
  H264PROFILE_MIN = 0,
  H264PROFILE_BASELINE = H264PROFILE_MIN,
  H264PROFILE_MAIN = 1,
  H264PROFILE_EXTENDED = 2,
  H264PROFILE_HIGH = 3,
  H264PROFILE_HIGH10PROFILE = 4,
  H264PROFILE_HIGH422PROFILE = 5,
  H264PROFILE_HIGH444PREDICTIVEPROFILE = 6,
  H264PROFILE_SCALABLEBASELINE = 7,
  H264PROFILE_SCALABLEHIGH = 8,
  H264PROFILE_STEREOHIGH = 9,
  H264PROFILE_MULTIVIEWHIGH = 10,
  H264PROFILE_MAX = H264PROFILE_MULTIVIEWHIGH,
  VP8PROFILE_MIN = 11,
  VP8PROFILE_ANY = VP8PROFILE_MIN,
  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,
  HEVCPROFILE_MAX = HEVCPROFILE_MAIN_STILL_PICTURE,
  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);

// ParseNewStyleVp9CodecID handles parsing of new style vp9 codec IDs per
// proposed VP Codec ISO Media File Format Binding specification:
// https://storage.googleapis.com/downloads.webmproject.org/docs/vp9/vp-codec-iso-media-file-format-binding-20160516-draft.pdf
// ParseLegacyVp9CodecID handles parsing of legacy VP9 codec strings defined
// for WebM.
// TODO(kqyang): Consolidate the two functions once we address crbug.com/667834
MEDIA_EXPORT bool ParseNewStyleVp9CodecID(const std::string& codec_id,
                                          VideoCodecProfile* profile,
                                          uint8_t* level_idc,
                                          VideoColorSpace* color_space);

MEDIA_EXPORT bool ParseLegacyVp9CodecID(const std::string& codec_id,
                                        VideoCodecProfile* profile,
                                        uint8_t* level_idc);

// Handle parsing AVC/H.264 codec ids as outlined in RFC 6381 and ISO-14496-10.
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_