Fix bug for direct track with PCM != 16-bit

The AUDIO_FORMAT_PCM_8_BIT format was being converted to
AUDIO_FORMAT_PCM_16_BIT on client side even for direct tracks.
That conversion was incorrect; it should only be done for mixed tracks.

Also remove checks for specific PCM formats in the generic part of
server side of createTrack.  Those format checks should only be done by
the thread.  This will allow direct tracks for PCM 8-bit, PCM 24-bit, etc.

Change-Id: If5b9fd79f8642ed93e2aeabcaf4809b2ed798978

1 files changed, 2 insertions, 4 deletions

diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 755d480..eb00c82 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -541,10 +541,8 @@ sp<IAudioTrack> AudioFlinger::createTrack(
         goto Exit;
     }
 
-    // client is responsible for conversion of 8-bit PCM to 16-bit PCM,
-    // and we don't yet support 8.24 or 32-bit PCM
-    if (!audio_is_valid_format(format) ||
-            (audio_is_linear_pcm(format) && format != AUDIO_FORMAT_PCM_16_BIT)) {
+    // further format checks are performed by createTrack_l() depending on the thread type
+    if (!audio_is_valid_format(format)) {
         ALOGE("createTrack() invalid format %#x", format);
         lStatus = BAD_VALUE;
         goto Exit;