omx: Add MJPEG decoder support

omx/Makefile.am

@@ -10,6 +10,7 @@ libgstomx_la_SOURCES = \
 	gstomxvideodec.c \
 	gstomxvideoenc.c \
 	gstomxaudioenc.c \
+	gstomxmjpegdec.c \
 	gstomxmpeg4videodec.c \
 	gstomxmpeg2dec.c \
 	gstomxh264dec.c \
@@ -26,6 +27,7 @@ noinst_HEADERS = \
 	gstomxvideodec.h \
 	gstomxvideoenc.h \
 	gstomxaudioenc.h \
+	gstomxmjpegdec.h \
 	gstomxmpeg2dec.h \
 	gstomxmpeg4videodec.h \
 	gstomxh264dec.h \

omx/gstomx.c

@@ -28,6 +28,7 @@
 #include <string.h>
 
 #include "gstomx.h"
+#include "gstomxmjpegdec.h"
 #include "gstomxmpeg2dec.h"
 #include "gstomxmpeg4videodec.h"
 #include "gstomxh264dec.h"
@@ -2326,7 +2327,7 @@ static const GGetTypeFunction types[] = {
   gst_omx_h264_dec_get_type, gst_omx_h263_dec_get_type,
   gst_omx_wmv_dec_get_type, gst_omx_mpeg4_video_enc_get_type,
   gst_omx_h264_enc_get_type, gst_omx_h263_enc_get_type,
-  gst_omx_aac_enc_get_type
+  gst_omx_aac_enc_get_type, gst_omx_mjpeg_dec_get_type,
 #ifdef HAVE_VP8
   , gst_omx_vp8_dec_get_type
 #endif

omx/gstomxmjpegdec.c

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2013, Collabora Ltd.
+ *   Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+
+#include "gstomxmjpegdec.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_omx_mjpeg_dec_debug_category);
+#define GST_CAT_DEFAULT gst_omx_mjpeg_dec_debug_category
+
+/* prototypes */
+static gboolean gst_omx_mjpeg_dec_is_format_change (GstOMXVideoDec * dec,
+    GstOMXPort * port, GstVideoCodecState * state);
+static gboolean gst_omx_mjpeg_dec_set_format (GstOMXVideoDec * dec,
+    GstOMXPort * port, GstVideoCodecState * state);
+
+enum
+{
+  PROP_0
+};
+
+/* class initialization */
+
+#define DEBUG_INIT \
+  GST_DEBUG_CATEGORY_INIT (gst_omx_mjpeg_dec_debug_category, "omxmjpegdec", 0, \
+      "debug category for gst-omx video decoder base class");
+
+G_DEFINE_TYPE_WITH_CODE (GstOMXMJPEGDec, gst_omx_mjpeg_dec,
+    GST_TYPE_OMX_VIDEO_DEC, DEBUG_INIT);
+
+static void
+gst_omx_mjpeg_dec_class_init (GstOMXMJPEGDecClass * klass)
+{
+  GstOMXVideoDecClass *videodec_class = GST_OMX_VIDEO_DEC_CLASS (klass);
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+  videodec_class->is_format_change =
+      GST_DEBUG_FUNCPTR (gst_omx_mjpeg_dec_is_format_change);
+  videodec_class->set_format = GST_DEBUG_FUNCPTR (gst_omx_mjpeg_dec_set_format);
+
+  videodec_class->cdata.default_sink_template_caps = "image/jpeg";
+
+  gst_element_class_set_static_metadata (element_class,
+      "OpenMAX MJPEG Video Decoder",
+      "Codec/Decoder/Video",
+      "Decode MJPEG video streams",
+      "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
+
+  gst_omx_set_default_role (&videodec_class->cdata, "video_decoder.mjpeg");
+}
+
+static void
+gst_omx_mjpeg_dec_init (GstOMXMJPEGDec * self)
+{
+}
+
+static gboolean
+gst_omx_mjpeg_dec_is_format_change (GstOMXVideoDec * dec,
+    GstOMXPort * port, GstVideoCodecState * state)
+{
+  return FALSE;
+}
+
+static gboolean
+gst_omx_mjpeg_dec_set_format (GstOMXVideoDec * dec, GstOMXPort * port,
+    GstVideoCodecState * state)
+{
+  gboolean ret;
+  OMX_PARAM_PORTDEFINITIONTYPE port_def;
+
+  gst_omx_port_get_port_definition (port, &port_def);
+  port_def.format.video.eCompressionFormat = OMX_VIDEO_CodingMJPEG;
+  ret = gst_omx_port_update_port_definition (port, &port_def) == OMX_ErrorNone;
+
+  return ret;
+}

omx/gstomxmjpegdec.h

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2011, Hewlett-Packard Development Company, L.P.
+ *   Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifndef __GST_OMX_MJPEG_DEC_H__
+#define __GST_OMX_MJPEG_DEC_H__
+
+#include <gst/gst.h>
+#include "gstomxvideodec.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_OMX_MJPEG_DEC \
+  (gst_omx_mjpeg_dec_get_type())
+#define GST_OMX_MJPEG_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OMX_MJPEG_DEC,GstOMXMJPEGDec))
+#define GST_OMX_MJPEG_DEC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OMX_MJPEG_DEC,GstOMXMJPEGDecClass))
+#define GST_OMX_MJPEG_DEC_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OMX_MJPEG_DEC,GstOMXMJPEGDecClass))
+#define GST_IS_OMX_MJPEG_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OMX_MJPEG_DEC))
+#define GST_IS_OMX_MJPEG_DEC_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OMX_MJPEG_DEC))
+
+typedef struct _GstOMXMJPEGDec GstOMXMJPEGDec;
+typedef struct _GstOMXMJPEGDecClass GstOMXMJPEGDecClass;
+
+struct _GstOMXMJPEGDec
+{
+  GstOMXVideoDec parent;
+};
+
+struct _GstOMXMJPEGDecClass
+{
+  GstOMXVideoDecClass parent_class;
+};
+
+GType gst_omx_mjpeg_dec_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_OMX_MJPEG_DEC_H__ */
+