<video> decode in hardware!

media/base/video_decoder_config.cc

 // Copyright (c) 2011 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/base/video_decoder_config.h"
 
 #include <cmath>
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "media/base/limits.h"
 
 namespace media {
 
 VideoDecoderConfig::VideoDecoderConfig()
     : codec_(kUnknownVideoCodec),
+      profile_(VIDEO_CODEC_PROFILE_UNKNOWN),
       format_(VideoFrame::INVALID),
       frame_rate_numerator_(0),
       frame_rate_denominator_(0),
       aspect_ratio_numerator_(0),
       aspect_ratio_denominator_(0),
       extra_data_size_(0) {
 }
 
 VideoDecoderConfig::VideoDecoderConfig(VideoCodec codec,
+                                       VideoCodecProfile profile,
                                        VideoFrame::Format format,
                                        const gfx::Size& coded_size,
                                        const gfx::Rect& visible_rect,
                                        int frame_rate_numerator,
                                        int frame_rate_denominator,
                                        int aspect_ratio_numerator,
                                        int aspect_ratio_denominator,
                                        const uint8* extra_data,
                                        size_t extra_data_size) {
-  Initialize(codec, format, coded_size, visible_rect,
+  Initialize(codec, profile, format, coded_size, visible_rect,
              frame_rate_numerator, frame_rate_denominator,
              aspect_ratio_numerator, aspect_ratio_denominator,
              extra_data, extra_data_size);
 }
 
 VideoDecoderConfig::~VideoDecoderConfig() {}
 
 // Some videos just want to watch the world burn, with a height of 0; cap the
 // "infinite" aspect ratio resulting.
 static const int kInfiniteRatio = 99999;
 
 // Common aspect ratios (multiplied by 100 and truncated) used for histogramming
 // video sizes.  These were taken on 20111103 from
 // http://wikipedia.org/wiki/Aspect_ratio_(image)#Previous_and_currently_used_aspect_ratios
 static const int kCommonAspectRatios100[] = {
   100, 115, 133, 137, 143, 150, 155, 160, 166, 175, 177, 185, 200, 210, 220,
   221, 235, 237, 240, 255, 259, 266, 276, 293, 400, 1200, kInfiniteRatio,
 };
 
 template<class T>  // T has int width() & height() methods.
 static void UmaHistogramAspectRatio(const char* name, const T& size) {
   UMA_HISTOGRAM_CUSTOM_ENUMERATION(
       name,
       // Intentionally use integer division to truncate the result.
       size.height() ? (size.width() * 100) / size.height() : kInfiniteRatio,
       base::CustomHistogram::ArrayToCustomRanges(
           kCommonAspectRatios100, arraysize(kCommonAspectRatios100)));
 }
 
-void VideoDecoderConfig::Initialize(VideoCodec codec, VideoFrame::Format format,
+void VideoDecoderConfig::Initialize(VideoCodec codec,
+                                    VideoCodecProfile profile,
+                                    VideoFrame::Format format,
                                     const gfx::Size& coded_size,
                                     const gfx::Rect& visible_rect,
                                     int frame_rate_numerator,
                                     int frame_rate_denominator,
                                     int aspect_ratio_numerator,
                                     int aspect_ratio_denominator,
                                     const uint8* extra_data,
                                     size_t extra_data_size) {
   CHECK((extra_data_size != 0) == (extra_data != NULL));
 
   UMA_HISTOGRAM_ENUMERATION("Media.VideoCodec", codec, kVideoCodecMax + 1);
+  UMA_HISTOGRAM_ENUMERATION("Media.VideoCodecProfile", profile,
+                            VIDEO_CODEC_PROFILE_MAX + 1);
   UMA_HISTOGRAM_COUNTS_10000("Media.VideoCodedWidth", coded_size.width());
   UmaHistogramAspectRatio("Media.VideoCodedAspectRatio", coded_size);
   UMA_HISTOGRAM_COUNTS_10000("Media.VideoVisibleWidth", visible_rect.width());
   UmaHistogramAspectRatio("Media.VideoVisibleAspectRatio", visible_rect);
 
   codec_ = codec;
+  profile_ = profile;
   format_ = format;
   coded_size_ = coded_size;
   visible_rect_ = visible_rect;
   frame_rate_numerator_ = frame_rate_numerator;
   frame_rate_denominator_ = frame_rate_denominator;
   aspect_ratio_numerator_ = aspect_ratio_numerator;
   aspect_ratio_denominator_ = aspect_ratio_denominator;
   extra_data_size_ = extra_data_size;
 
   if (extra_data_size_ > 0) {
@@ skipping 25 matching lines @@
       format_ != VideoFrame::INVALID &&
       frame_rate_numerator_ > 0 &&
       frame_rate_denominator_ > 0 &&
       aspect_ratio_numerator_ > 0 &&
       aspect_ratio_denominator_ > 0 &&
       natural_size_.width() <= limits::kMaxDimension &&
       natural_size_.height() <= limits::kMaxDimension &&
       natural_size_.GetArea() <= limits::kMaxCanvas;
 }
 
+std::string VideoDecoderConfig::AsHumanReadableString() const {
+  std::ostringstream s;
+  s << "codec: " << codec()
+    << " format: " << format()
+    << " coded size: [" << coded_size().width()
+    << "," << coded_size().height() << "]"
+    << " visible rect: [" << visible_rect().x()
+    << "," << visible_rect().y()
+    << "," << visible_rect().width()
+    << "," << visible_rect().height() << "]"
+    << " natural size: [" << natural_size().width()
+    << "," << natural_size().height() << "]"
+    << " frame rate: " << frame_rate_numerator()
+    << "/" << frame_rate_denominator()
+    << " aspect ratio: " << aspect_ratio_numerator()
+    << "/" << aspect_ratio_denominator();
+  return s.str();
+}
+
 VideoCodec VideoDecoderConfig::codec() const {
   return codec_;
 }
 
+VideoCodecProfile VideoDecoderConfig::profile() const {
+  return profile_;
+}
+
 VideoFrame::Format VideoDecoderConfig::format() const {
   return format_;
 }
 
 gfx::Size VideoDecoderConfig::coded_size() const {
   return coded_size_;
 }
 
 gfx::Rect VideoDecoderConfig::visible_rect() const {
   return visible_rect_;
@@ skipping 21 matching lines @@
 
 uint8* VideoDecoderConfig::extra_data() const {
   return extra_data_.get();
 }
 
 size_t VideoDecoderConfig::extra_data_size() const {
   return extra_data_size_;
 }
 
 }  // namespace media