代码中添加audiodump方法

代码中添加audiodump方法

1. 抓取dump的命令：
   setprop vendor.vidc.dec.log.in 1
   setprop vendor.vidc.dec.log.out 1
   dumpsys | grep -iE ‘audio|media’ > data/vendor/media/audio_dump.txt
   adb shell dumpsys media.audio_flinger
2. 修改代码：

AudioFlinger
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 364e339..aa2f014 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -25,6 +25,10 @@
 #include <sys/syscall.h>
 #include <utils/Log.h>
 
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include <private/media/AudioTrackShared.h>
 
 #include "AudioMixer.h"
@@ -569,6 +573,17 @@ status_t AudioFlinger::PlaybackThread::Track::getNextBuffer(
     } else {
         mAudioTrackServerProxy->tallyUnderrunFrames(0);
     }
+ {
+ char fname[100];
+ sprintf(fname, "/data/misc/audio/%s-session-%d.pcm", mThread.promote()->mThreadName, mSessionId);
+ int tmpFd = ::open(fname, O_CREAT | O_WRONLY | O_APPEND, 0776);
+ if ( tmpFd < 0 ) {
+ ALOGE("Fail to open dumpTrack file");
+ } else {
+ ::write(tmpFd, buffer->raw, buffer->frameCount * TrackBase::mChannelCount * 2);
+ ::close(tmpFd);
+ }
+ }
 
     return status;
 }
------------------------------------------------------------------------
HAL
hardware/qcom/audio/hal/audio_hw.c
+#include <fcntl.h>
#include <errno.h>
#include <pthread.h>
#include <stdint.h>
@@ -1632,6 +1633,18 @@ static ssize_t out_write(struct audio_stream_out *stream, const void *buffer,
            if (out->muted)
                memset((void *)buffer, 0, bytes);
            ALOGVV("%s: writing buffer (%d bytes) to pcm device", __func__, bytes);
+ {
+ int tmpFd = open("/data/misc/audio/dumpTrack_hal.pcm", O_CREAT | O_WRONLY | O_APPEND, 0777);
+ if ( tmpFd < 0 ) {
+ ALOGE("Fail to open dumpTrack_hal file");
+ } else {
+ write(tmpFd, buffer, bytes);
+ close(tmpFd);
+ }
+ }
            ret = pcm_write(out->pcm, (void *)buffer, bytes);