commit eeb2765f6c910c0690780e3b5bd598901accef0a
author Alex Luebs <aluebs@webrtc.org> Mon Nov 20 11:13:56 2017 -0800
committer Commit Bot <commit-bot@chromium.org> Mon Nov 20 20:04:19 2017 +0000
tree 98f0f395fe7e6b14108d8684a3f1ee71e405b94e
parent 64eaa99cfcf74a0c8000755e2f8214c17213a2dc

Implement Opus bandwidth adjustment behind a FieldTrial

Bug: webrtc:8522
Change-Id: I3a32ebfecd27ff74b507c2cee9e16aab17153442
Reviewed-on: https://webrtc-review.googlesource.com/22210
Commit-Queue: Alejandro Luebs <aluebs@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20799}

modules/audio_coding/codecs/opus/opus_unittest.cc

diff --git a/modules/audio_coding/codecs/opus/opus_unittest.cc b/modules/audio_coding/codecs/opus/opus_unittest.cc
index c9e6ad1..be0530b 100644
--- a/modules/audio_coding/codecs/opus/opus_unittest.cc
+++ b/modules/audio_coding/codecs/opus/opus_unittest.cc
@@ -458,6 +458,45 @@
   EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_encoder_));
 }
 
+TEST_P(OpusTest, OpusSetBandwidth) {
+  PrepareSpeechData(channels_, 20, 20);
+
+  int16_t audio_type;
+  std::unique_ptr<int16_t[]> output_data_decode(
+      new int16_t[kOpus20msFrameSamples * channels_]());
+
+  // Test without creating encoder memory.
+  EXPECT_EQ(-1,
+            WebRtcOpus_SetBandwidth(opus_encoder_, OPUS_BANDWIDTH_NARROWBAND));
+  EXPECT_EQ(-1, WebRtcOpus_GetBandwidth(opus_encoder_));
+
+  // Create encoder memory, try with different bandwidths.
+  EXPECT_EQ(0,
+            WebRtcOpus_EncoderCreate(&opus_encoder_, channels_, application_));
+  EXPECT_EQ(0, WebRtcOpus_DecoderCreate(&opus_decoder_, channels_));
+
+  EXPECT_EQ(-1, WebRtcOpus_SetBandwidth(opus_encoder_,
+                                        OPUS_BANDWIDTH_NARROWBAND - 1));
+  EXPECT_EQ(0,
+            WebRtcOpus_SetBandwidth(opus_encoder_, OPUS_BANDWIDTH_NARROWBAND));
+  EncodeDecode(opus_encoder_, speech_data_.GetNextBlock(), opus_decoder_,
+               output_data_decode.get(), &audio_type);
+  EXPECT_EQ(OPUS_BANDWIDTH_NARROWBAND, WebRtcOpus_GetBandwidth(opus_encoder_));
+  EXPECT_EQ(0, WebRtcOpus_SetBandwidth(opus_encoder_, OPUS_BANDWIDTH_FULLBAND));
+  EncodeDecode(opus_encoder_, speech_data_.GetNextBlock(), opus_decoder_,
+               output_data_decode.get(), &audio_type);
+  EXPECT_EQ(OPUS_BANDWIDTH_FULLBAND, WebRtcOpus_GetBandwidth(opus_encoder_));
+  EXPECT_EQ(
+      -1, WebRtcOpus_SetBandwidth(opus_encoder_, OPUS_BANDWIDTH_FULLBAND + 1));
+  EncodeDecode(opus_encoder_, speech_data_.GetNextBlock(), opus_decoder_,
+               output_data_decode.get(), &audio_type);
+  EXPECT_EQ(OPUS_BANDWIDTH_FULLBAND, WebRtcOpus_GetBandwidth(opus_encoder_));
+
+  // Free memory.
+  EXPECT_EQ(0, WebRtcOpus_EncoderFree(opus_encoder_));
+  EXPECT_EQ(0, WebRtcOpus_DecoderFree(opus_decoder_));
+}
+
 TEST_P(OpusTest, OpusForceChannels) {
   // Test without creating encoder memory.
   EXPECT_EQ(-1, WebRtcOpus_SetForceChannels(opus_encoder_, 1));