summaryrefslogtreecommitdiffstats
path: root/ext/xvid/gstxvidenc.c
diff options
context:
space:
mode:
Diffstat (limited to 'ext/xvid/gstxvidenc.c')
-rw-r--r--ext/xvid/gstxvidenc.c494
1 files changed, 494 insertions, 0 deletions
diff --git a/ext/xvid/gstxvidenc.c b/ext/xvid/gstxvidenc.c
new file mode 100644
index 00000000..e916bda1
--- /dev/null
+++ b/ext/xvid/gstxvidenc.c
@@ -0,0 +1,494 @@
+/* GStreamer xvid encoder plugin
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#include "gstxvidenc.h"
+#include <gst/video/video.h>
+#include <xvid.h>
+
+/* elementfactory information */
+GstElementDetails gst_xvidenc_details = {
+ "Xvid encoder",
+ "Codec/Video/Encoder",
+ "GPL",
+ "Xvid encoder based on xvidencore",
+ VERSION,
+ "Ronald Bultje <rbultje@ronald.bitfreak.net>",
+ "(C) 2003",
+};
+
+GST_PAD_TEMPLATE_FACTORY(sink_template,
+ "sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_CAPS_NEW("xvidenc_sink",
+ "video/raw",
+ "format", GST_PROPS_LIST(
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('I','4','2','0')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('I','Y','U','V')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('Y','U','Y','2')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('Y','V','1','2')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('Y','V','Y','U')),
+ GST_PROPS_FOURCC(GST_MAKE_FOURCC('U','Y','V','Y'))
+ ),
+ "width", GST_PROPS_INT_RANGE(0, G_MAXINT),
+ "height", GST_PROPS_INT_RANGE(0, G_MAXINT),
+ NULL)
+)
+
+GST_PAD_TEMPLATE_FACTORY(src_template,
+ "src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_CAPS_NEW("xvidenc_sink",
+ "video/xvid",
+ NULL)
+)
+
+
+/* XvidEnc signals and args */
+enum {
+ FRAME_ENCODED,
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0,
+ ARG_BITRATE,
+ ARG_MAXKEYINTERVAL,
+ ARG_BUFSIZE
+};
+
+
+static void gst_xvidenc_class_init (GstXvidEncClass *klass);
+static void gst_xvidenc_init (GstXvidEnc *xvidenc);
+static void gst_xvidenc_chain (GstPad *pad,
+ GstBuffer *buf);
+static GstPadLinkReturn gst_xvidenc_connect (GstPad *pad,
+ GstCaps *vscapslist);
+
+/* properties */
+static void gst_xvidenc_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gst_xvidenc_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static GstElementClass *parent_class = NULL;
+static guint gst_xvidenc_signals[LAST_SIGNAL] = { 0 };
+
+
+GType
+gst_xvidenc_get_type(void)
+{
+ static GType xvidenc_type = 0;
+
+ if (!xvidenc_type)
+ {
+ static const GTypeInfo xvidenc_info = {
+ sizeof(GstXvidEncClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_xvidenc_class_init,
+ NULL,
+ NULL,
+ sizeof(GstXvidEnc),
+ 0,
+ (GInstanceInitFunc) gst_xvidenc_init,
+ };
+ xvidenc_type = g_type_register_static(GST_TYPE_ELEMENT,
+ "GstXvidEnc",
+ &xvidenc_info, 0);
+ }
+ return xvidenc_type;
+}
+
+
+static void
+gst_xvidenc_class_init (GstXvidEncClass *klass)
+{
+ XVID_INIT_PARAM xinit;
+ GstElementClass *gstelement_class;
+ GObjectClass *gobject_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+ /* set up xvid initially (function pointers, CPU flags) */
+ memset(&xinit, 0, sizeof(xinit));
+ xinit.cpu_flags = 0;
+ xvid_init(NULL, 0, &xinit, NULL);
+ if (xinit.api_version != API_VERSION) {
+ g_error("Xvid API version mismatch! %d.%d (that's us) != %d.%d (lib)",
+ (API_VERSION >> 8) & 0xff, API_VERSION & 0xff,
+ (xinit.api_version >> 8) & 0xff, xinit.api_version & 0xff);
+ return;
+ }
+
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BITRATE,
+ g_param_spec_ulong("bitrate","Bitrate",
+ "Target video bitrate",
+ 0,G_MAXULONG,0,G_PARAM_READWRITE));
+
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MAXKEYINTERVAL,
+ g_param_spec_int("max_key_interval","Max. Key Interval",
+ "Maximum number of frames between two keyframes",
+ 0,G_MAXINT,0,G_PARAM_READWRITE));
+
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BUFSIZE,
+ g_param_spec_ulong("buffer_size", "Buffer Size",
+ "Size of the video buffers",
+ 0,G_MAXULONG,0,G_PARAM_READWRITE));
+
+ gobject_class->set_property = gst_xvidenc_set_property;
+ gobject_class->get_property = gst_xvidenc_get_property;
+
+ gst_xvidenc_signals[FRAME_ENCODED] =
+ g_signal_new ("frame_encoded", G_TYPE_FROM_CLASS(klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstXvidEncClass, frame_encoded),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
+}
+
+
+static void
+gst_xvidenc_init (GstXvidEnc *xvidenc)
+{
+ /* create the sink pad */
+ xvidenc->sinkpad = gst_pad_new_from_template(
+ GST_PAD_TEMPLATE_GET(sink_template),
+ "sink");
+ gst_element_add_pad(GST_ELEMENT(xvidenc), xvidenc->sinkpad);
+
+ gst_pad_set_chain_function(xvidenc->sinkpad, gst_xvidenc_chain);
+ gst_pad_set_link_function(xvidenc->sinkpad, gst_xvidenc_connect);
+
+ /* create the src pad */
+ xvidenc->sinkpad = gst_pad_new_from_template(
+ GST_PAD_TEMPLATE_GET(src_template),
+ "src");
+ gst_element_add_pad(GST_ELEMENT(xvidenc), xvidenc->srcpad);
+
+ /* bitrate, etc. */
+ xvidenc->width = xvidenc->height = xvidenc->csp = -1;
+ xvidenc->bitrate = 512 * 1024;
+ xvidenc->max_key_interval = -1; /* default - 2*fps */
+ xvidenc->buffer_size = 512 * 1024;
+
+ /* set xvid handle to NULL */
+ xvidenc->handle = NULL;
+}
+
+
+static gboolean
+gst_xvidenc_setup (GstXvidEnc *xvidenc)
+{
+ XVID_ENC_PARAM xenc;
+ gdouble fps;
+ int ret;
+
+ fps = gst_video_frame_rate(GST_PAD_PEER(xvidenc->sinkpad));
+
+ /* set up xvid codec parameters - grab docs from
+ * xvid.org for more info */
+ memset(&xenc, 0, sizeof(XVID_ENC_PARAM));
+ xenc.width = xvidenc->width;
+ xenc.height = xvidenc->height;
+ xenc.fincr = (int)(fps * 1000);
+ xenc.fbase = 1000;
+ xenc.rc_bitrate = xvidenc->bitrate;
+ xenc.rc_reaction_delay_factor = -1;
+ xenc.rc_averaging_period = -1;
+ xenc.rc_buffer = -1;
+ xenc.min_quantizer = 1;
+ xenc.max_quantizer = 31;
+ xenc.max_key_interval = (xvidenc->max_key_interval == -1) ?
+ (2 * xenc.fincr / xenc.fbase) :
+ xvidenc->max_key_interval;
+ xenc.handle = NULL;
+
+ if ((ret = xvid_encore(NULL, XVID_ENC_CREATE,
+ &xenc, NULL)) != XVID_ERR_OK) {
+ gst_element_error(GST_ELEMENT(xvidenc),
+ "Error setting up xvid encoder: %d\n", ret);
+ return FALSE;
+ }
+
+ xvidenc->handle = xenc.handle;
+
+ return TRUE;
+}
+
+
+static void
+gst_xvidenc_chain (GstPad *pad,
+ GstBuffer *buf)
+{
+ GstXvidEnc *xvidenc;
+ GstBuffer *outbuf;
+ XVID_ENC_FRAME xframe;
+ int ret;
+
+ g_return_if_fail(pad != NULL);
+ g_return_if_fail(GST_IS_PAD(pad));
+ g_return_if_fail(buf != NULL);
+
+ xvidenc = GST_XVIDENC(GST_OBJECT_PARENT(pad));
+
+ if (!xvidenc->handle) {
+ if (!gst_xvidenc_setup(xvidenc)) {
+ gst_buffer_unref(buf);
+ return;
+ }
+ }
+
+ outbuf = gst_buffer_new_and_alloc(xvidenc->buffer_size);
+ GST_BUFFER_TIMESTAMP(outbuf) = GST_BUFFER_TIMESTAMP(buf);
+
+ /* encode and so ... */
+ xframe.image = GST_BUFFER_DATA(buf);
+ xframe.bitstream = (void *) GST_BUFFER_DATA(outbuf);
+ xframe.length = GST_BUFFER_MAXSIZE(outbuf);
+ xframe.intra = -1;
+ xframe.quant = 0;
+ xframe.colorspace = xvidenc->csp;
+ xframe.general = XVID_H263QUANT |
+ XVID_INTER4V |
+ XVID_HALFPEL;
+ xframe.motion = PMV_EARLYSTOP16 |
+ PMV_HALFPELREFINE16 |
+ PMV_EXTSEARCH16 |
+ PMV_EARLYSTOP8 |
+ PMV_HALFPELREFINE8;
+
+ if ((ret = xvid_encore(xvidenc->handle, XVID_ENC_ENCODE,
+ &xframe, NULL)) != XVID_ERR_OK) {
+ gst_element_error(GST_ELEMENT(xvidenc),
+ "Error encoding xvid frame: %d\n", ret);
+ gst_buffer_unref(buf);
+ return;
+ }
+
+ GST_BUFFER_SIZE(outbuf) = xframe.length;
+ if (xframe.intra)
+ GST_BUFFER_FLAG_SET(outbuf, GST_BUFFER_KEY_UNIT);
+
+ /* go out, multiply! */
+ gst_pad_push(xvidenc->srcpad, outbuf);
+
+ /* proclaim destiny */
+ g_signal_emit(G_OBJECT(xvidenc),gst_xvidenc_signals[FRAME_ENCODED], 0);
+
+ /* until the final judgement */
+ gst_buffer_unref(buf);
+}
+
+
+static GstPadLinkReturn
+gst_xvidenc_connect (GstPad *pad,
+ GstCaps *vscaps)
+{
+ GstXvidEnc *xvidenc;
+ GstCaps *caps;
+
+ xvidenc = GST_XVIDENC(gst_pad_get_parent (pad));
+
+ /* if there's something old around, remove it */
+ if (xvidenc->handle) {
+ xvid_encore(xvidenc->handle, XVID_ENC_DESTROY, NULL, NULL);
+ xvidenc->handle = NULL;
+ }
+
+ /* we are not going to act on variable caps */
+ if (!GST_CAPS_IS_FIXED(vscaps))
+ return GST_PAD_LINK_DELAYED;
+
+ for (caps = vscaps; caps != NULL; caps = caps->next)
+ {
+ int w,h,d;
+ guint32 fourcc;
+ gint xvid_cs;
+ gst_caps_get_int(caps, "width", &w);
+ gst_caps_get_int(caps, "height", &h);
+ gst_caps_get_fourcc_int(caps, "format", &fourcc);
+
+ switch (fourcc)
+ {
+ case GST_MAKE_FOURCC('I','4','2','0'):
+ case GST_MAKE_FOURCC('I','Y','U','V'):
+ xvid_cs = XVID_CSP_I420;
+ break;
+ case GST_MAKE_FOURCC('Y','U','Y','2'):
+ xvid_cs = XVID_CSP_YUY2;
+ break;
+ case GST_MAKE_FOURCC('Y','V','1','2'):
+ xvid_cs = XVID_CSP_YV12;
+ break;
+ case GST_MAKE_FOURCC('U','Y','V','Y'):
+ xvid_cs = XVID_CSP_UYVY;
+ break;
+ case GST_MAKE_FOURCC('Y','V','Y','U'):
+ xvid_cs = XVID_CSP_YVYU;
+ break;
+ case GST_MAKE_FOURCC('R','G','B',' '):
+ gst_caps_get_int(caps, "depth", &d);
+ switch (d) {
+ case 15:
+ xvid_cs = XVID_CSP_RGB555;
+ break;
+ case 16:
+ xvid_cs = XVID_CSP_RGB565;
+ break;
+ case 24:
+ xvid_cs = XVID_CSP_RGB24;
+ break;
+ case 32:
+ xvid_cs = XVID_CSP_RGB32;
+ break;
+ default:
+ goto trynext;
+ }
+ break;
+ default:
+ goto trynext;
+ }
+
+ /* grmbl, we only know the peer pad *after*
+ * linking, so we accept here, get the fps on
+ * the first cycle and set it all up then */
+ xvidenc->csp = xvid_cs;
+ xvidenc->width = w;
+ xvidenc->height = h;
+ return gst_pad_try_set_caps(xvidenc->srcpad,
+ GST_CAPS_NEW("xvidenc_src_caps",
+ "video/xvid",
+ "width", GST_PROPS_INT(w),
+ "height", GST_PROPS_INT(h)));
+
+trynext:
+ continue;
+ }
+
+ /* if we got here - it's not good */
+ return GST_PAD_LINK_REFUSED;
+}
+
+
+static void
+gst_xvidenc_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GstXvidEnc *xvidenc;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_XVIDENC (object));
+ xvidenc = GST_XVIDENC(object);
+
+ switch (prop_id)
+ {
+ case ARG_BITRATE:
+ xvidenc->bitrate = g_value_get_ulong(value);
+ break;
+ case ARG_BUFSIZE:
+ xvidenc->buffer_size = g_value_get_ulong(value);
+ break;
+ case ARG_MAXKEYINTERVAL:
+ xvidenc->max_key_interval = g_value_get_int(value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+static void
+gst_xvidenc_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GstXvidEnc *xvidenc;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_XVIDENC (object));
+ xvidenc = GST_XVIDENC(object);
+
+ switch (prop_id) {
+ case ARG_BITRATE:
+ g_value_set_ulong(value, xvidenc->bitrate);
+ break;
+ case ARG_BUFSIZE:
+ g_value_set_ulong(value, xvidenc->buffer_size);
+ break;
+ case ARG_MAXKEYINTERVAL:
+ g_value_set_int(value, xvidenc->max_key_interval);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+static gboolean
+plugin_init (GModule *module,
+ GstPlugin *plugin)
+{
+ GstElementFactory *factory;
+
+ if (!gst_library_load("gstvideo"))
+ return FALSE;
+
+ /* create an elementfactory for the v4lmjpegsrcparse element */
+ factory = gst_element_factory_new("xvidenc", GST_TYPE_XVIDENC,
+ &gst_xvidenc_details);
+ g_return_val_if_fail(factory != NULL, FALSE);
+
+ /* add pad templates */
+ gst_element_factory_add_pad_template(factory,
+ GST_PAD_TEMPLATE_GET(sink_template));
+ gst_element_factory_add_pad_template(factory,
+ GST_PAD_TEMPLATE_GET(src_template));
+
+ gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+ return TRUE;
+}
+
+
+GstPluginDesc plugin_desc = {
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "xvidenc",
+ plugin_init
+};