gstreamer1.0-omx: Add raspberry pi optimization patches and config options

Patches from Hong Li <honglh@gmail.com>

Signed-off-by: Khem Raj <raj.khem@gmail.com>

recipes-multimedia/gstreamer/gstreamer1.0-omx/0001-config-files-path.patch

@@ -0,0 +1,137 @@
+--- a/config/bellagio/gstomx.conf
++++ b/config/bellagio/gstomx.conf
+@@ -1,6 +1,6 @@
+ [omxmpeg4videodec]
+ type-name=GstOMXMPEG4VideoDec
+-core-name=/usr/local/lib/libomxil-bellagio.so.0
++core-name=/usr/lib/libomxil-bellagio.so.0
+ component-name=OMX.st.video_decoder.mpeg4
+ rank=256
+ in-port-index=0
+@@ -9,7 +9,7 @@
+ 
+ [omxh264dec]
+ type-name=GstOMXH264Dec
+-core-name=/usr/local/lib/libomxil-bellagio.so.0
++core-name=/usr/lib/libomxil-bellagio.so.0
+ component-name=OMX.st.video_decoder.avc
+ rank=256
+ in-port-index=0
+@@ -18,7 +18,7 @@
+ 
+ [omxmpeg4videoenc]
+ type-name=GstOMXMPEG4VideoEnc
+-core-name=/usr/local/lib/libomxil-bellagio.so.0
++core-name=/usr/lib/libomxil-bellagio.so.0
+ component-name=OMX.st.video_encoder.mpeg4
+ rank=0
+ in-port-index=0
+@@ -27,7 +27,7 @@
+ 
+ [omxaacenc]
+ type-name=GstOMXAACEnc
+-core-name=/usr/local/lib/libomxil-bellagio.so.0
++core-name=/usr/lib/libomxil-bellagio.so.0
+ component-name=OMX.st.audio_encoder.aac
+ rank=0
+ in-port-index=0
+--- a/config/rpi/gstomx.conf
++++ b/config/rpi/gstomx.conf
+@@ -1,6 +1,6 @@
+ [omxmpeg2videodec]
+ type-name=GstOMXMPEG2VideoDec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=257
+ in-port-index=130
+@@ -9,7 +9,7 @@
+ 
+ [omxmpeg4videodec]
+ type-name=GstOMXMPEG4VideoDec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=257
+ in-port-index=130
+@@ -18,7 +18,7 @@
+ 
+ [omxh263dec]
+ type-name=GstOMXH263Dec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=257
+ in-port-index=130
+@@ -27,7 +27,7 @@
+ 
+ [omxh264dec]
+ type-name=GstOMXH264Dec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=257
+ in-port-index=130
+@@ -36,7 +36,7 @@
+ 
+ [omxtheoradec]
+ type-name=GstOMXTheoraDec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=257
+ in-port-index=130
+@@ -45,7 +45,7 @@
+ 
+ [omxvp8dec]
+ type-name=GstOMXVP8Dec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=257
+ in-port-index=130
+@@ -54,7 +54,7 @@
+ 
+ [omxmjpegdec]
+ type-name=GstOMXMJPEGDec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=257
+ in-port-index=130
+@@ -63,7 +63,7 @@
+ 
+ [omxvc1dec]
+ type-name=GstOMXWMVDec
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_decode
+ rank=256
+ in-port-index=130
+@@ -73,7 +73,7 @@
+ 
+ [omxh264enc]
+ type-name=GstOMXH264Enc
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.video_encode
+ rank=257
+ in-port-index=200
+@@ -82,7 +82,7 @@
+ 
+ [omxanalogaudiosink]
+ type-name=GstOMXAnalogAudioSink
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.audio_render
+ rank=256
+ in-port-index=100
+@@ -92,7 +92,7 @@
+ 
+ [omxhdmiaudiosink]
+ type-name=GstOMXHdmiAudioSink
+-core-name=/opt/vc/lib/libopenmaxil.so
++core-name=/usr/lib/libopenmaxil.so
+ component-name=OMX.broadcom.audio_render
+ rank=257
+ in-port-index=100

recipes-multimedia/gstreamer/gstreamer1.0-omx/0002-Don-t-try-to-acquire-buffer-when-src-pad-isn-t-activ.patch

@@ -0,0 +1,47 @@
+From 2e111e52f96f0b942abda120c30a876629bd73fc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Enrique=20Oca=C3=B1a=20Gonz=C3=A1lez?= <eocanha@igalia.com>
+Date: Mon, 25 May 2015 14:53:35 +0200
+Subject: [PATCH] Don't try to acquire buffer when src pad isn't active
+
+This solves a race condition when setting the pipeline from PAUSE to
+NULL while the decoder loop is still running. Without this patch, the
+thread which interacts with the decode sink pad gets blocked here:
+
+  gst_element_change_state()
+  gst_element_change_state_func()
+  gst_element_pads_activate() --> Deactivating pads
+  activate_pads()
+  gst_pad_set_active()
+  gst_pad_activate_mode()
+  post_activate()
+  GST_PAD_STREAM_LOCK()
+
+while gst_omx_port_acquire_buffer() gets stalled forever in
+gst_omx_component_wait_message() waiting for a message that will never
+arrive:
+
+  gst_omx_video_dec_loop()
+  gst_omx_port_acquire_buffer()
+  gst_omx_component_wait_message()
+---
+ omx/gstomxvideodec.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/omx/gstomxvideodec.c b/omx/gstomxvideodec.c
+index cd24944..57a61dd 100644
+--- a/omx/gstomxvideodec.c
++++ b/omx/gstomxvideodec.c
+@@ -1247,6 +1247,11 @@ gst_omx_video_dec_loop (GstOMXVideoDec * self)
+   GstClockTimeDiff deadline;
+   OMX_ERRORTYPE err;
+ 
++  if (!gst_pad_is_active(GST_VIDEO_DECODER_SRC_PAD (self))) {
++    GST_DEBUG_OBJECT (self, "Src pad not active, not acquiring buffer and flushing instead");
++      goto flushing;
++  }
++
+ #if defined (USE_OMX_TARGET_RPI) && defined (HAVE_GST_GL)
+   port = self->eglimage ? self->egl_out_port : self->dec_out_port;
+ #else
+-- 
+1.8.3.2

recipes-multimedia/gstreamer/gstreamer1.0-omx/0003-fix-decoder-flushing.patch

@@ -0,0 +1,15 @@
+diff --git a/omx/gstomx.c b/omx/gstomx.c
+index 69696c4..c382019 100644
+--- a/omx/gstomx.c
++++ b/omx/gstomx.c
+@@ -1508,8 +1508,8 @@ gst_omx_port_set_flushing (GstOMXPort * port, GstClockTime timeout,
+     last_error = OMX_ErrorNone;
+     gst_omx_component_handle_messages (comp);
+     while (signalled && last_error == OMX_ErrorNone && !port->flushed
+-        && port->buffers
+-        && port->buffers->len > g_queue_get_length (&port->pending_buffers)) {
++     /* && port->buffers
++        && port->buffers->len > g_queue_get_length (&port->pending_buffers) */) {
+       signalled = gst_omx_component_wait_message (comp, timeout);
+       if (signalled)
+         gst_omx_component_handle_messages (comp);

recipes-multimedia/gstreamer/gstreamer1.0-omx_%.bbappend

@@ -0,0 +1,19 @@
+#
+# Need to make this conditional to gstreamer1
+#
+SRC_URI_append_rpi = " \
+             file://0001-config-files-path.patch \
+             file://0002-Don-t-try-to-acquire-buffer-when-src-pad-isn-t-activ.patch \
+             file://0003-fix-decoder-flushing.patch \
+"
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/gstreamer1.0-omx:"
+
+GSTREAMER_1_0_OMX_TARGET_rpi = "rpi"
+GSTREAMER_1_0_OMX_CORE_NAME_rpi = "${libdir}/libopenmaxil.so"
+
+
+# How to make this RPI specific?
+EXTRA_OECONF_append_rpi  = " CFLAGS="$CFLAGS -I${STAGING_DIR_TARGET}/usr/include/IL -I${STAGING_DIR_TARGET}/usr/include/interface/vcos/pthreads -I${STAGING_DIR_TARGET}/usr/include/interface/vmcs_host/linux""
+#examples only build with GL but not GLES, so disable it for RPI
+EXTRA_OECONF_append_rpi = " --disable-examples"