Index: media/base/audio_discard_helper.h |
diff --git a/media/base/audio_discard_helper.h b/media/base/audio_discard_helper.h |
index 544c4cfa2e28232ffa59de45856980c7a19c723e..6da956e2280d3946d1ebf26eb855e36c10fc5539 100644 |
--- a/media/base/audio_discard_helper.h |
+++ b/media/base/audio_discard_helper.h |
@@ -30,11 +30,16 @@ class MEDIA_EXPORT AudioDiscardHelper { |
// specify this if the decoder inserts frames which have no corresponding |
// encoded buffer. |
// |
+ // |delayed_discard| indicates that the codec requires two encoded buffers |
+ // before the first decoded output buffer. Used only for vorbis currently. |
+ // |
// For example, most MP3 decoders will output 529 junk frames before the data |
// corresponding to the first encoded buffer is output. These frames are not |
// represented in the encoded data stream and instead are an artifact of how |
// most MP3 decoders work. See http://lame.sourceforge.net/tech-FAQ.txt |
- AudioDiscardHelper(int sample_rate, size_t decoder_delay); |
+ AudioDiscardHelper(int sample_rate, |
+ size_t decoder_delay, |
+ bool delayed_discard); |
~AudioDiscardHelper(); |
// Converts a TimeDelta to a frame count based on the constructed sample rate. |
@@ -90,9 +95,8 @@ class MEDIA_EXPORT AudioDiscardHelper { |
// Certain codecs require two encoded buffers before they'll output the first |
// decoded buffer. In this case DiscardPadding must be carried over from the |
- // previous encoded buffer. Enabled automatically if an encoded buffer is |
- // given to ProcessBuffers() with a NULL decoded buffer. |
- bool delayed_discard_; |
+ // previous encoded buffer. Set during construction. |
+ const bool delayed_discard_; |
DecoderBuffer::DiscardPadding delayed_discard_padding_; |
// When |decoder_delay_| > 0, the number of frames which should be discarded |