Bug 495558 - Initialize sydneyaudio/ALSA with host endian format (fixes sound on big endian machines). r=chris.double

--HG--
extra : rebase_source : d2635e23f0e65a7e9db397d54f998610fa2348f6

media/libsydneyaudio/README_MOZILLA

@@ -19,6 +19,7 @@ sydney_os2_base.patch: Bug 448918 - add OS/2 support (this patch should
 sydney_os2_moz.patch:  Bug 448918 - add Mozilla-specific code to
                        sydney_audio_os2.c
 
-
 bug495794_closeAudio.patch fixes a crash when destroying the sa_stream_t after
 a failed attempt to open the stream.
+
+bug495558_alsa_endian.patch adds support for big endian ALSA platforms.

media/libsydneyaudio/bug495558_alsa_endian.patch

@@ -0,0 +1,44 @@
+diff --git a/media/libsydneyaudio/src/sydney_audio_alsa.c b/media/libsydneyaudio/src/sydney_audio_alsa.c
+--- a/media/libsydneyaudio/src/sydney_audio_alsa.c
++++ b/media/libsydneyaudio/src/sydney_audio_alsa.c
+@@ -93,17 +93,17 @@ sa_stream_create_pcm(
+   if (_s == NULL) {
+     return SA_ERROR_INVALID;
+   }
+   *_s = NULL;
+ 
+   if (mode != SA_MODE_WRONLY) {
+     return SA_ERROR_NOT_SUPPORTED;
+   }
+-  if (format != SA_PCM_FORMAT_S16_LE) {
++  if (format != SA_PCM_FORMAT_S16_NE) {
+     return SA_ERROR_NOT_SUPPORTED;
+   }
+ 
+   /*
+    * Allocate the instance and required resources.
+    */
+   if ((s = malloc(sizeof(sa_stream_t))) == NULL) {
+     return SA_ERROR_OOM;
+@@ -137,17 +137,21 @@ sa_stream_open(sa_stream_t *s) {
+   if (snd_pcm_open(&s->output_unit, 
+                    "default", 
+                    SND_PCM_STREAM_PLAYBACK, 
+                    0) < 0) {
+     return SA_ERROR_NO_DEVICE;
+   }
+   
+   if (snd_pcm_set_params(s->output_unit,
++#ifdef SA_LITTLE_ENDIAN
+                          SND_PCM_FORMAT_S16_LE,
++#else
++                         SND_PCM_FORMAT_S16_BE,
++#endif
+                          SND_PCM_ACCESS_RW_INTERLEAVED,
+                          s->n_channels,
+                          s->rate,
+                          1,
+                          500000) < 0) {
+     snd_pcm_close(s->output_unit);
+     s->output_unit = NULL;
+     return SA_ERROR_NOT_SUPPORTED;

media/libsydneyaudio/src/sydney_audio_alsa.c

@@ -98,7 +98,7 @@ sa_stream_create_pcm(
   if (mode != SA_MODE_WRONLY) {
     return SA_ERROR_NOT_SUPPORTED;
   }
-  if (format != SA_PCM_FORMAT_S16_LE) {
+  if (format != SA_PCM_FORMAT_S16_NE) {
     return SA_ERROR_NOT_SUPPORTED;
   }
 
@@ -142,7 +142,11 @@ sa_stream_open(sa_stream_t *s) {
   }
   
   if (snd_pcm_set_params(s->output_unit,
+#ifdef SA_LITTLE_ENDIAN
                          SND_PCM_FORMAT_S16_LE,
+#else
+                         SND_PCM_FORMAT_S16_BE,
+#endif
                          SND_PCM_ACCESS_RW_INTERLEAVED,
                          s->n_channels,
                          s->rate,

media/libsydneyaudio/update.sh

@@ -10,3 +10,4 @@ patch -p4 <include-CoreServices.patch
 patch -p4 <sydney_os2_base.patch
 patch -p4 <sydney_os2_moz.patch
 patch -p3 <bug495794_closeAudio.patch
+patch -p3 < bug495558_alsa_endian.patch