Implemented HEVC video demuxing and parsing

media/formats/mp4/box_definitions.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/mp4/box_definitions.h"
 
 #include "base/logging.h"
+#include "media/base/video_util.h"
 #include "media/formats/mp4/es_descriptor.h"
 #include "media/formats/mp4/rcheck.h"
 
 namespace media {
 namespace mp4 {
 
 FileType::FileType() {}
 FileType::~FileType() {}
 FourCC FileType::BoxType() const { return FOURCC_FTYP; }
 
@@ skipping 391 matching lines @@
   pps_list.resize(num_pps);
   for (int i = 0; i < num_pps; i++) {
     uint16 pps_length;
     RCHECK(reader->Read2(&pps_length) &&
            reader->ReadVec(&pps_list[i], pps_length));
   }
 
   return true;
 }
 
+#if defined(ENABLE_HEVC_DEMUXING)
+HEVCDecoderConfigurationRecord::HEVCDecoderConfigurationRecord()
+    : configurationVersion(0),
+      general_profile_space(0),
+      general_tier_flag(0),
+      general_profile_idc(0),
+      general_profile_compatibility_flags(0),
+      general_constraint_indicator_flags(0),
+      general_level_idc(0),
+      min_spatial_segmentation_idc(0),
+      parallelismType(0),
+      chromaFormat(0),
+      bitDepthLumaMinus8(0),
+      bitDepthChromaMinus8(0),
+      avgFrameRate(0),
+      constantFrameRate(0),
+      numTemporalLayers(0),
+      temporalIdNested(0),
+      lengthSizeMinusOne(0),
+      numOfArrays(0)
+{
+}
+
+HEVCDecoderConfigurationRecord::~HEVCDecoderConfigurationRecord() {}
+FourCC HEVCDecoderConfigurationRecord::BoxType() const { return FOURCC_HVCC; }
+
+bool HEVCDecoderConfigurationRecord::Parse(BoxReader* reader) {
+  return ParseInternal(reader, reader->log_cb());
+}
+
+bool HEVCDecoderConfigurationRecord::Parse(const uint8* data, int data_size) {
+  BufferReader reader(data, data_size);
+  return ParseInternal(&reader, LogCB());
+}
+
+HEVCDecoderConfigurationRecord::HVCCNALArray::HVCCNALArray()
+  : first_byte(0) { }
+
+HEVCDecoderConfigurationRecord::HVCCNALArray::~HVCCNALArray() { }
+
+bool HEVCDecoderConfigurationRecord::ParseInternal(BufferReader* reader,
+                                                  const LogCB& log_cb) {
+  uint8 profile_indication = 0;
+  uint32 general_constraint_indicator_flags_hi = 0;
+  uint16 general_constraint_indicator_flags_lo = 0;
+  uint8 misc = 0;
+  RCHECK(reader->Read1(&configurationVersion) && configurationVersion == 1 &&
+         reader->Read1(&profile_indication) &&
+         reader->Read4(&general_profile_compatibility_flags) &&
+         reader->Read4(&general_constraint_indicator_flags_hi) &&
+         reader->Read2(&general_constraint_indicator_flags_lo) &&
+         reader->Read1(&general_level_idc) &&
+         reader->Read2(&min_spatial_segmentation_idc) &&
+         reader->Read1(&parallelismType) &&
+         reader->Read1(&chromaFormat) &&
+         reader->Read1(&bitDepthLumaMinus8) &&
+         reader->Read1(&bitDepthChromaMinus8) &&
+         reader->Read2(&avgFrameRate) &&
+         reader->Read1(&misc) &&
+         reader->Read1(&numOfArrays));
+
+  general_profile_space = profile_indication >> 6;
+  general_tier_flag = (profile_indication >> 5) & 1;
+  general_profile_idc = profile_indication & 0x1f;
+
+  general_constraint_indicator_flags = general_constraint_indicator_flags_hi;
+  general_constraint_indicator_flags <<= 16;
+  general_constraint_indicator_flags |= general_constraint_indicator_flags_lo;
+
+  min_spatial_segmentation_idc &= 0xfff;
+  parallelismType &= 3;
+  chromaFormat &= 3;
+  bitDepthLumaMinus8 &= 7;
+  bitDepthChromaMinus8 &= 7;
+
+  constantFrameRate = misc >> 6;
+  numTemporalLayers = (misc >> 3) & 7;
+  temporalIdNested = (misc >> 2) & 1;
+  lengthSizeMinusOne = misc & 3;
+
+  DVLOG(2) << __FUNCTION__ << " numOfArrays=" << (int)numOfArrays;
+  arrays.resize(numOfArrays);
+  for (uint32 j = 0; j < numOfArrays; j++) {
+    RCHECK(reader->Read1(&arrays[j].first_byte));
+    uint16 numNalus = 0;
+    RCHECK(reader->Read2(&numNalus));
+    arrays[j].units.resize(numNalus);
+    for (uint32 i = 0; i < numNalus; ++i) {
+      uint16 naluLength = 0;
+      RCHECK(reader->Read2(&naluLength) &&
+             reader->ReadVec(&arrays[j].units[i], naluLength));
+      DVLOG(4) << __FUNCTION__ << " naluType="
+               << (int)(arrays[j].first_byte & 0x3f)
+               << " size=" << arrays[j].units[i].size();
+    }
+  }
+
+  if (!log_cb.is_null()) {
+    MEDIA_LOG(log_cb) << "Video codec: hevc";
+  }
+
+  return true;
+}
+#endif
+
 PixelAspectRatioBox::PixelAspectRatioBox() : h_spacing(1), v_spacing(1) {}
 PixelAspectRatioBox::~PixelAspectRatioBox() {}
 FourCC PixelAspectRatioBox::BoxType() const { return FOURCC_PASP; }
 
 bool PixelAspectRatioBox::Parse(BoxReader* reader) {
   RCHECK(reader->Read4(&h_spacing) &&
          reader->Read4(&v_spacing));
   return true;
 }
 
@@ skipping 24 matching lines @@
 
   if (format == FOURCC_ENCV) {
     // Continue scanning until a recognized protection scheme is found, or until
     // we run out of protection schemes.
     while (sinf.type.type != FOURCC_CENC) {
       if (!reader->ReadChild(&sinf))
         return false;
     }
   }
 
-  if (IsFormatValid())
-    RCHECK(reader->ReadChild(&avcc));
+  VideoCodec codec = kUnknownVideoCodec;
+  VideoCodecProfile profile = VIDEO_CODEC_PROFILE_UNKNOWN;
+  if ((format == FOURCC_AVC1 || format == FOURCC_AVC3) ||
+      (format == FOURCC_ENCV && (sinf.format.format == FOURCC_AVC1 ||
+                                 sinf.format.format == FOURCC_AVC3))) {
+    DVLOG(2) << __FUNCTION__
+             << " reading AVCDecoderConfigurationRecord (avcC)";
+    RCHECK(reader->ReadChild(&avcConfig));
+    codec = kCodecH264;
+    profile = H264PROFILE_MAIN;
+#if defined(ENABLE_HEVC_DEMUXING)
+  } else if ((format == FOURCC_HEV1 || format == FOURCC_HVC1) ||
+             (format == FOURCC_ENCV && (sinf.format.format == FOURCC_HEV1 ||
+                                        sinf.format.format == FOURCC_HVC1))) {
+    DVLOG(2) << __FUNCTION__
+             << " parsing HEVCDecoderConfigurationRecord (hvcC)";
+    RCHECK(reader->ReadChild(&hevcConfig));
+    codec = kCodecHEVC;
+#endif
+  } else {
+    // Unknown/unsupported format
+    MEDIA_LOG(reader->log_cb()) << __FUNCTION__ << " unsupported video format "
+                                << FourCCToString(format);
+    return false;
+  }
 
+  // TODO(strobe): Recover correct crop box
+  gfx::Size coded_size(width, height);
+  gfx::Rect visible_rect(coded_size);
+  gfx::Size natural_size = GetNaturalSize(visible_rect.size(),
+                                          pixel_aspect.h_spacing,
+                                          pixel_aspect.v_spacing);
+  bool is_encrypted = sinf.info.track_encryption.is_encrypted;
+  video_decoder_config_.Initialize(
+      codec, profile, VideoFrame::YV12,
+      coded_size, visible_rect, natural_size,
+      // No decoder-specific buffer needed.
+      // Decoder parameters (SPS/PPS) are embedded in the video stream.
+      NULL, 0, is_encrypted, false);
   return true;
 }
 
-bool VideoSampleEntry::IsFormatValid() const {
-  return format == FOURCC_AVC1 || format == FOURCC_AVC3 ||
-      (format == FOURCC_ENCV && (sinf.format.format == FOURCC_AVC1 ||
-                                 sinf.format.format == FOURCC_AVC3));
+VideoDecoderConfig VideoSampleEntry::GetVideoDecoderConfig() const {
+  return video_decoder_config_;
 }
 
 ElementaryStreamDescriptor::ElementaryStreamDescriptor()
     : object_type(kForbidden) {}
 
 ElementaryStreamDescriptor::~ElementaryStreamDescriptor() {}
 
 FourCC ElementaryStreamDescriptor::BoxType() const {
   return FOURCC_ESDS;
 }
@@ skipping 467 matching lines @@
 SampleDependsOn IndependentAndDisposableSamples::sample_depends_on(
     size_t i) const {
   if (i >= sample_depends_on_.size())
     return kSampleDependsOnUnknown;
 
   return sample_depends_on_[i];
 }
 
 }  // namespace mp4
 }  // namespace media