Add live mode detection in WebM MediaSource parser.

media/base/video_decoder_config.cc

 // Copyright (c) 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.
 
 #include "media/base/video_decoder_config.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 
 namespace media {
 
 VideoDecoderConfig::VideoDecoderConfig()
     : codec_(kUnknownVideoCodec),
       profile_(VIDEO_CODEC_PROFILE_UNKNOWN),
       format_(VideoFrame::UNKNOWN),
       is_encrypted_(false) {
 }
 
 VideoDecoderConfig::VideoDecoderConfig(VideoCodec codec,
                                        VideoCodecProfile profile,
                                        VideoFrame::Format format,
                                        const gfx::Size& coded_size,
                                        const gfx::Rect& visible_rect,
                                        const gfx::Size& natural_size,
                                        const uint8* extra_data,
                                        size_t extra_data_size,
-                                       bool is_encrypted) {
+                                       bool is_encrypted,
+                                       bool low_delay) {
   Initialize(codec, profile, format, coded_size, visible_rect, natural_size,
-             extra_data, extra_data_size, is_encrypted, true);
+             extra_data, extra_data_size, is_encrypted, low_delay, true);
 }
 
 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
@@ skipping 15 matching lines @@
 
 void VideoDecoderConfig::Initialize(VideoCodec codec,
                                     VideoCodecProfile profile,
                                     VideoFrame::Format format,
                                     const gfx::Size& coded_size,
                                     const gfx::Rect& visible_rect,
                                     const gfx::Size& natural_size,
                                     const uint8* extra_data,
                                     size_t extra_data_size,
                                     bool is_encrypted,
+                                    bool low_delay,
                                     bool record_stats) {
   CHECK((extra_data_size != 0) == (extra_data != NULL));
 
   if (record_stats) {
     UMA_HISTOGRAM_ENUMERATION("Media.VideoCodec", codec, kVideoCodecMax + 1);
     // Drop UNKNOWN because U_H_E() uses one bucket for all values less than 1.
     if (profile >= 0) {
       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);
     UMA_HISTOGRAM_ENUMERATION(
         "Media.VideoPixelFormat", format, VideoFrame::FORMAT_MAX + 1);
   }
 
   codec_ = codec;
   profile_ = profile;
   format_ = format;
   coded_size_ = coded_size;
   visible_rect_ = visible_rect;
   natural_size_ = natural_size;
   extra_data_.assign(extra_data, extra_data + extra_data_size);
   is_encrypted_ = is_encrypted;
+  low_delay_ = low_delay;
 }
 
 bool VideoDecoderConfig::IsValidConfig() const {
   return codec_ != kUnknownVideoCodec &&
       natural_size_.width() > 0 &&
       natural_size_.height() > 0 &&
       VideoFrame::IsValidConfig(format_, coded_size_, visible_rect_,
           natural_size_);
 }
 
@@ skipping 60 matching lines @@
 
 size_t VideoDecoderConfig::extra_data_size() const {
   return extra_data_.size();
 }
 
 bool VideoDecoderConfig::is_encrypted() const {
   return is_encrypted_;
 }
 
 }  // namespace media