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Set scaling limit at 320 * 180 for all implementations.

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The MediaCodec decoder on android has trouble decoding video at
so low resolutions. We set the limit a bit higher for all implementations
pending a robust software fallback implementation for MediaCodec.

BUG=webrtc:7206

Review-Url: https://codereview.webrtc.org/2709153002
Cr-Commit-Position: refs/heads/master@{#16798}
This commit is contained in:
kthelgason 2017-02-23 03:22:02 -08:00 committed by Commit bot
parent 7439a93b4c
commit 560ddb7321
1 changed files with 2 additions and 4 deletions
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6
webrtc/video/vie_encoder.cc
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@ -35,14 +35,12 @@ using DegradationPreference = VideoSendStream::DegradationPreference;
// Time interval for logging frame counts.
const int64_t kFrameLogIntervalMs = 60000;
// We will never ask for a resolution lower than this.
#if defined(WEBRTC_ANDROID)
// TODO(kthelgason): Lower this limit when better testing
// on MediaCodec and fallback implementations are in place.
// See https://bugs.chromium.org/p/webrtc/issues/detail?id=7206
const int kMinPixelsPerFrame = 320 * 180;
#else
const int kMinPixelsPerFrame = 120 * 90;
#endif
// The maximum number of frames to drop at beginning of stream
// to try and achieve desired bitrate.