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gstreamer/ext/xvid/gstxvidenc.c
Ronald S. Bultje ab57fbcd54 Adds divx/xvid encoders. divx encoder is based on divx4linux (commercial, closed-source) 
Original commit message from CVS:
Adds divx/xvid encoders.
* divx encoder is based on divx4linux (commercial, closed-source)
* xvid encoder is based on xvidcore (http://www.xvid.org/, GPL - Christian? ;) )

Both use a GstCaps that doesn't conform with what we currently use, I might fix that later on or so. For now, it doesn't matter, it's just a test. We're also missing corresponding decoders (ffmpeg can decoded this too, but that's not the point), these might come later too.
2003-04-21 21:54:27 +00:00

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/* 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
};
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