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adding ffmpeg, but it needs proper handling

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Original commit message from CVS:
adding ffmpeg, but it needs proper handling
This commit is contained in:
Thomas Vander Stichele 2001-12-23 13:25:04 +00:00
commit 428baadc62
6 changed files with 1181 additions and 0 deletions
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11
ext/ffmpeg/Makefile.am Normal file
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plugindir = $(libdir)/gst
plugin_LTLIBRARIES = libgstffmpeg.la
libgstffmpeg_la_SOURCES = gstffmpeg.c gstffmpegenc.c gstffmpegdec.c
## FIXME: these really need a kick in the pants !
## CFLAGS += -I/opt/src/ffmpeg/
## LDFLAGS += -L/opt/src/ffmpeg/libavcodec -lavcodec -L/opt/src/ffmpeg/libav -lav
noinst_HEADERS = gstffmpegenc.h gstffmpegdec.h

44
ext/ffmpeg/gstffmpeg.c Normal file
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/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
/* First, include the header file for the plugin, to bring in the
* object definition and other useful things.
*/
#include "gstffmpegdec.h"
#include "gstffmpegenc.h"
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
avcodec_init ();
avcodec_register_all ();
gst_ffmpegenc_register (plugin);
gst_ffmpegdec_register (plugin);
/* Now we can return the pointer to the newly created Plugin object. */
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"ffmpeg",
plugin_init
};

378
ext/ffmpeg/gstffmpegdec.c Normal file
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/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#include "gstffmpegdec.h"
#include <string.h>
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
/* FILL ME */
};
/* This factory is much simpler, and defines the source pad. */
GST_PADTEMPLATE_FACTORY (gst_ffmpegdec_sink_factory,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"ffmpegdec_sink",
"video/avi",
"format", GST_PROPS_STRING ("strf_vids")
)
)
/* This factory is much simpler, and defines the source pad. */
GST_PADTEMPLATE_FACTORY (gst_ffmpegdec_audio_src_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"ffmpegdec_src",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN (TRUE),
"width", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"rate", GST_PROPS_INT_RANGE (8000, 96000),
"channels", GST_PROPS_INT_RANGE (1, 2)
)
)
/* This factory is much simpler, and defines the source pad. */
GST_PADTEMPLATE_FACTORY (gst_ffmpegdec_video_src_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"ffmpegdec_src",
"video/raw",
"format", GST_PROPS_LIST (
GST_PROPS_FOURCC (GST_STR_FOURCC ("I420"))
),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096)
)
)
static GHashTable *global_plugins;
/* A number of functon prototypes are given so we can refer to them later. */
static void gst_ffmpegdec_class_init (GstFFMpegDecClass *klass);
static void gst_ffmpegdec_init (GstFFMpegDec *ffmpegdec);
static void gst_ffmpegdec_chain_audio (GstPad *pad, GstBuffer *buffer);
static void gst_ffmpegdec_chain_video (GstPad *pad, GstBuffer *buffer);
static void gst_ffmpegdec_set_property (GObject *object, guint prop_id, const GValue *value,
GParamSpec *pspec);
static void gst_ffmpegdec_get_property (GObject *object, guint prop_id, GValue *value,
GParamSpec *pspec);
static GstElementClass *parent_class = NULL;
//static guint gst_ffmpegdec_signals[LAST_SIGNAL] = { 0 };
static void
gst_ffmpegdec_class_init (GstFFMpegDecClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
klass->in_plugin = g_hash_table_lookup (global_plugins,
GINT_TO_POINTER (G_OBJECT_CLASS_TYPE (gobject_class)));
gobject_class->set_property = gst_ffmpegdec_set_property;
gobject_class->get_property = gst_ffmpegdec_get_property;
}
static void
gst_ffmpegdec_newcaps (GstPad *pad, GstCaps *caps)
{
GstFFMpegDec *ffmpegdec = (GstFFMpegDec *)(gst_pad_get_parent (pad));
GstFFMpegDecClass *oclass = (GstFFMpegDecClass*)(G_OBJECT_GET_CLASS (ffmpegdec));
ffmpegdec->context->width = gst_caps_get_int (caps, "width");
ffmpegdec->context->height = gst_caps_get_int (caps, "height");
ffmpegdec->context->pix_fmt = PIX_FMT_YUV420P;
ffmpegdec->context->frame_rate = 23 * FRAME_RATE_BASE;
ffmpegdec->context->bit_rate = 0;
/* FIXME bug in ffmpeg */
if (avcodec_open (ffmpegdec->context, avcodec_find_encoder(CODEC_ID_MPEG1VIDEO)) <0 ) {
g_warning ("ffmpegdec: could not open codec");
}
if (avcodec_open (ffmpegdec->context, oclass->in_plugin) < 0) {
g_warning ("ffmpegdec: could not open codec");
}
}
static void
gst_ffmpegdec_init(GstFFMpegDec *ffmpegdec)
{
GstFFMpegDecClass *oclass = (GstFFMpegDecClass*)(G_OBJECT_GET_CLASS (ffmpegdec));
ffmpegdec->context = g_malloc0 (sizeof (AVCodecContext));
ffmpegdec->sinkpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (gst_ffmpegdec_sink_factory), "sink");
gst_pad_set_newcaps_function (ffmpegdec->sinkpad, gst_ffmpegdec_newcaps);
if (oclass->in_plugin->type == CODEC_TYPE_VIDEO) {
ffmpegdec->srcpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (gst_ffmpegdec_video_src_factory), "src");
gst_pad_set_chain_function (ffmpegdec->sinkpad, gst_ffmpegdec_chain_video);
}
else if (oclass->in_plugin->type == CODEC_TYPE_AUDIO) {
ffmpegdec->srcpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (gst_ffmpegdec_audio_src_factory), "src");
gst_pad_set_chain_function (ffmpegdec->sinkpad, gst_ffmpegdec_chain_audio);
}
gst_element_add_pad (GST_ELEMENT (ffmpegdec), ffmpegdec->sinkpad);
gst_element_add_pad (GST_ELEMENT (ffmpegdec), ffmpegdec->srcpad);
ffmpegdec->picture = g_malloc0 (sizeof (AVPicture));
}
static void
gst_ffmpegdec_chain_audio (GstPad *pad, GstBuffer *inbuf)
{
//GstFFMpegDec *ffmpegdec = (GstFFMpegDec *)(gst_pad_get_parent (pad));
gpointer data;
gint size;
data = GST_BUFFER_DATA (inbuf);
size = GST_BUFFER_SIZE (inbuf);
GST_DEBUG (0, "got buffer %p %d\n", data, size);
gst_buffer_unref (inbuf);
}
static void
gst_ffmpegdec_chain_video (GstPad *pad, GstBuffer *inbuf)
{
GstBuffer *outbuf;
GstFFMpegDec *ffmpegdec = (GstFFMpegDec *)(gst_pad_get_parent (pad));
guchar *data;
gint size, frame_size, len;
gint have_picture;
data = GST_BUFFER_DATA (inbuf);
size = GST_BUFFER_SIZE (inbuf);
do {
ffmpegdec->context->frame_number++;
len = avcodec_decode_video (ffmpegdec->context, ffmpegdec->picture,
&have_picture, data, size);
if (len < 0) {
g_warning ("ffmpegdec: decoding error");
break;
}
if (have_picture) {
guchar *picdata, *picdata2, *outdata, *outdata2;
gint xsize, i, width, height;
width = ffmpegdec->context->width;
height = ffmpegdec->context->height;
if (!GST_PAD_CAPS (ffmpegdec->srcpad)) {
gst_pad_set_caps (ffmpegdec->srcpad,
GST_CAPS_NEW (
"ffmpegdec_src",
"video/raw",
"format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
"width", GST_PROPS_INT (width),
"height", GST_PROPS_INT (height)
));
}
frame_size = width * height;
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = (frame_size*3)>>1;
outdata = GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (inbuf);
picdata = ffmpegdec->picture->data[0];
xsize = ffmpegdec->picture->linesize[0];
for (i=height; i; i--) {
memcpy (outdata, picdata, width);
outdata += width;
picdata += xsize;
}
frame_size >>= 2;
width >>= 1;
height >>= 1;
outdata2 = outdata + frame_size;
picdata = ffmpegdec->picture->data[1];
picdata2 = ffmpegdec->picture->data[2];
xsize = ffmpegdec->picture->linesize[1];
for (i=height; i; i--) {
memcpy (outdata, picdata, width);
memcpy (outdata2, picdata2, width);
outdata += width; outdata2 += width;
picdata += xsize; picdata2 += xsize;
}
gst_pad_push (ffmpegdec->srcpad, outbuf);
}
size -= len;
data += len;
}
while (size > 0);
gst_buffer_unref (inbuf);
}
static void
gst_ffmpegdec_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstFFMpegDec *ffmpegdec;
/* Get a pointer of the right type. */
ffmpegdec = (GstFFMpegDec *)(object);
/* Check the argument id to see which argument we're setting. */
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* The set function is simply the inverse of the get fuction. */
static void
gst_ffmpegdec_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstFFMpegDec *ffmpegdec;
/* It's not null if we got it, but it might not be ours */
ffmpegdec = (GstFFMpegDec *)(object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
gboolean
gst_ffmpegdec_register (GstPlugin *plugin)
{
GstElementFactory *factory;
GTypeInfo typeinfo = {
sizeof(GstFFMpegDecClass),
NULL,
NULL,
(GClassInitFunc)gst_ffmpegdec_class_init,
NULL,
NULL,
sizeof(GstFFMpegDec),
0,
(GInstanceInitFunc)gst_ffmpegdec_init,
};
GType type;
GstElementDetails *details;
AVCodec *in_plugin;
in_plugin = first_avcodec;
global_plugins = g_hash_table_new (NULL, NULL);
while (in_plugin) {
gchar *type_name;
gchar *codec_type;
if (in_plugin->decode) {
codec_type = "dec";
}
else {
goto next;
}
// construct the type
type_name = g_strdup_printf("ffmpeg%s_%s", codec_type, in_plugin->name);
// if it's already registered, drop it
if (g_type_from_name(type_name)) {
g_free(type_name);
goto next;
}
// create the gtk type now
type = g_type_register_static(GST_TYPE_ELEMENT, type_name , &typeinfo, 0);
// construct the element details struct
details = g_new0 (GstElementDetails,1);
details->longname = g_strdup (in_plugin->name);
details->klass = "Codec/FFMpeg";
details->description = g_strdup (in_plugin->name);
details->version = g_strdup("1.0.0");
details->author = g_strdup("The FFMPEG crew, GStreamer plugin by Wim Taymans <wim.taymans@chello.be>");
details->copyright = g_strdup("(c) 2001");
g_hash_table_insert (global_plugins,
GINT_TO_POINTER (type),
(gpointer) in_plugin);
// register the plugin with gstreamer
factory = gst_elementfactory_new(type_name,type,details);
g_return_val_if_fail(factory != NULL, FALSE);
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_ffmpegdec_sink_factory));
if (in_plugin->type == CODEC_TYPE_VIDEO) {
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_ffmpegdec_video_src_factory));
}
else if (in_plugin->type == CODEC_TYPE_AUDIO) {
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_ffmpegdec_audio_src_factory));
}
/* The very last thing is to register the elementfactory with the plugin. */
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
next:
in_plugin = in_plugin->next;
}
return TRUE;
}

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ext/ffmpeg/gstffmpegdec.h Normal file
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/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifndef __GST_FFMPEGDEC_H__
#define __GST_FFMPEGDEC_H__
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef __GST_FFMPEG_AV_H__
#define __GST_FFMPEG_AV_H__
#include <libavcodec/avcodec.h>
#endif /* __GST_FFMPEG_AV_H__ */
/* This is the definition of the element's object structure. */
typedef struct _GstFFMpegDec GstFFMpegDec;
/* The structure itself is derived from GstElement, as can be seen by the
* fact that there's a complete instance of the GstElement structure at
* the beginning of the object. This allows the element to be cast to
* an Element or even an Object.
*/
struct _GstFFMpegDec {
GstElement element;
/* We need to keep track of our pads, so we do so here. */
GstPad *srcpad;
GstPad *sinkpad;
AVCodecContext *context;
AVPicture *picture;
};
/* The other half of the object is its class. The class also derives from
* the same parent, though it must be the class structure this time.
* Function pointers for polymophic methods and signals are placed in this
* structure. */
typedef struct _GstFFMpegDecClass GstFFMpegDecClass;
struct _GstFFMpegDecClass {
GstElementClass parent_class;
AVCodec *in_plugin;
};
/* Five standard preprocessing macros are used in the Gtk+ object system.
* The first uses the object's _get_type function to return the GType
* of the object.
*/
#define GST_TYPE_FFMPEGDEC \
(gst_ffmpegdec_get_type())
/* The second is a checking cast to the correct type. If the object passed
* is not the right type, a warning will be generated on stderr.
*/
#define GST_FFMPEGDEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGDEC,GstFFMpegDec))
/* The third is a checking cast of the class instead of the object. */
#define GST_FFMPEGDEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGDEC,GstFFMpegDec))
/* The last two simply check to see if the passed pointer is an object or
* class of the correct type. */
#define GST_IS_FFMPEGDEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGDEC))
#define GST_IS_FFMPEGDEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGDEC))
gboolean gst_ffmpegdec_register (GstPlugin *plugin);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_FFMPEGDEC_H__ */

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/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#include "gstffmpegenc.h"
#include <string.h>
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_WIDTH,
ARG_HEIGHT,
ARG_BIT_RATE,
ARG_FRAME_RATE,
ARG_SAMPLE_RATE,
ARG_GOP_SIZE,
ARG_HQ,
ARG_ME_METHOD,
/* FILL ME */
};
/* This factory is much simpler, and defines the source pad. */
GST_PADTEMPLATE_FACTORY (gst_ffmpegenc_src_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"ffmpegenc_src",
"unknown/unknown",
NULL
)
)
/* This factory is much simpler, and defines the source pad. */
GST_PADTEMPLATE_FACTORY (gst_ffmpegenc_audio_sink_factory,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"ffmpegenc_sink",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_BOOLEAN (TRUE),
"width", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"rate", GST_PROPS_INT_RANGE (8000, 96000),
"channels", GST_PROPS_INT_RANGE (1, 2)
)
)
/* This factory is much simpler, and defines the source pad. */
GST_PADTEMPLATE_FACTORY (gst_ffmpegenc_video_sink_factory,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"ffmpegenc_sink",
"video/raw",
"format", GST_PROPS_LIST (
GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
GST_PROPS_FOURCC (GST_STR_FOURCC ("YUY2"))
),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096)
)
)
#define GST_TYPE_ME_METHOD (gst_ffmpegenc_me_method_get_type())
static GType
gst_ffmpegenc_me_method_get_type (void)
{
static GType ffmpegenc_me_method_type = 0;
static GEnumValue ffmpegenc_me_methods[] = {
{ ME_ZERO, "0", "zero" },
{ ME_FULL, "1", "full" },
{ ME_LOG, "2", "logarithmic" },
{ ME_PHODS, "3", "phods" },
{ 0, NULL, NULL },
};
if (!ffmpegenc_me_method_type) {
ffmpegenc_me_method_type = g_enum_register_static ("GstFFMpegEncMeMethod", ffmpegenc_me_methods);
}
return ffmpegenc_me_method_type;
}
static GHashTable *enc_global_plugins;
/* A number of functon prototypes are given so we can refer to them later. */
static void gst_ffmpegenc_class_init (GstFFMpegEncClass *klass);
static void gst_ffmpegenc_init (GstFFMpegEnc *ffmpegenc);
static void gst_ffmpegenc_chain_audio (GstPad *pad, GstBuffer *buffer);
static void gst_ffmpegenc_chain_video (GstPad *pad, GstBuffer *buffer);
static void gst_ffmpegenc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_ffmpegenc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static GstElementClass *parent_class = NULL;
//static guint gst_ffmpegenc_signals[LAST_SIGNAL] = { 0 };
static void
gst_ffmpegenc_class_init (GstFFMpegEncClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
klass->in_plugin = g_hash_table_lookup (enc_global_plugins,
GINT_TO_POINTER (G_OBJECT_CLASS_TYPE (gobject_class)));
if (klass->in_plugin->type == CODEC_TYPE_VIDEO) {
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_WIDTH,
g_param_spec_int ("width","width","width",
0, G_MAXINT, -1, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_HEIGHT,
g_param_spec_int ("height","height","height",
0, G_MAXINT, -1, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_BIT_RATE,
g_param_spec_int ("bit_rate","bit_rate","bit_rate",
0, G_MAXINT, 300000, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_FRAME_RATE,
g_param_spec_int ("frame_rate","frame_rate","frame_rate",
0, G_MAXINT, 25, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_GOP_SIZE,
g_param_spec_int ("gop_size","gop_size","gop_size",
0, G_MAXINT, 15, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_HQ,
g_param_spec_boolean ("hq","hq","hq",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_ME_METHOD,
g_param_spec_enum ("me_method","me_method","me_method",
GST_TYPE_ME_METHOD, ME_LOG, G_PARAM_READWRITE));
}
else if (klass->in_plugin->type == CODEC_TYPE_AUDIO) {
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_BIT_RATE,
g_param_spec_int ("bit_rate","bit_rate","bit_rate",
0, G_MAXINT, 128000, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_SAMPLE_RATE,
g_param_spec_int ("sample_rate","rate","rate",
0, G_MAXINT, -1, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS (klass), ARG_HQ,
g_param_spec_boolean ("hq","hq","hq",
FALSE, G_PARAM_READWRITE));
}
gobject_class->set_property = gst_ffmpegenc_set_property;
gobject_class->get_property = gst_ffmpegenc_get_property;
}
static void
gst_ffmpegenc_newcaps (GstPad *pad, GstCaps *caps)
{
GstFFMpegEnc *ffmpegenc = (GstFFMpegEnc *) gst_pad_get_parent (pad);
GstFFMpegEncClass *oclass = (GstFFMpegEncClass*)(G_OBJECT_GET_CLASS(ffmpegenc));
if (strstr (gst_caps_get_mime (caps), "audio/raw")) {
ffmpegenc->context->sample_rate = gst_caps_get_int (caps, "rate");
ffmpegenc->context->channels = gst_caps_get_int (caps, "channels");
}
else if (strstr (gst_caps_get_mime (caps), "video/raw")) {
ffmpegenc->in_width = gst_caps_get_int (caps, "width");
ffmpegenc->in_height = gst_caps_get_int (caps, "height");
if (ffmpegenc->need_resample) {
ffmpegenc->context->width = ffmpegenc->out_width;
ffmpegenc->context->height = ffmpegenc->out_height;
}
else {
ffmpegenc->context->width = ffmpegenc->in_width;
ffmpegenc->context->height = ffmpegenc->in_height;
}
if (gst_caps_get_fourcc_int (caps, "format") == GST_STR_FOURCC ("I420")) {
ffmpegenc->context->pix_fmt = PIX_FMT_YUV420P;
}
else {
ffmpegenc->context->pix_fmt = PIX_FMT_YUV422;
}
ffmpegenc->resample = img_resample_init (ffmpegenc->context->width, ffmpegenc->context->height,
ffmpegenc->in_width, ffmpegenc->in_height);
}
else {
g_warning ("ffmpegenc: invalid caps %s\n", gst_caps_get_mime (caps));
}
if (avcodec_open (ffmpegenc->context, oclass->in_plugin) < 0) {
g_warning ("ffmpegenc: could not open codec\n");
}
if (oclass->in_plugin->type == CODEC_TYPE_AUDIO) {
ffmpegenc->buffer = g_malloc (ffmpegenc->context->frame_size * 2 *
ffmpegenc->context->channels);
ffmpegenc->buffer_pos = 0;
}
}
static void
gst_ffmpegenc_init(GstFFMpegEnc *ffmpegenc)
{
GstFFMpegEncClass *oclass = (GstFFMpegEncClass*)(G_OBJECT_GET_CLASS (ffmpegenc));
ffmpegenc->context = g_malloc0 (sizeof (AVCodecContext));
if (oclass->in_plugin->type == CODEC_TYPE_VIDEO) {
ffmpegenc->sinkpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (gst_ffmpegenc_video_sink_factory), "sink");
gst_pad_set_chain_function (ffmpegenc->sinkpad, gst_ffmpegenc_chain_video);
ffmpegenc->context->bit_rate = 300000;
ffmpegenc->context->gop_size = 15;
ffmpegenc->context->frame_rate = 25;
ffmpegenc->out_width = -1;
ffmpegenc->out_height = -1;
}
else if (oclass->in_plugin->type == CODEC_TYPE_AUDIO) {
ffmpegenc->sinkpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (gst_ffmpegenc_audio_sink_factory), "sink");
gst_pad_set_chain_function (ffmpegenc->sinkpad, gst_ffmpegenc_chain_audio);
ffmpegenc->context->bit_rate = 128000;
ffmpegenc->context->sample_rate = -1;
}
gst_pad_set_newcaps_function (ffmpegenc->sinkpad, gst_ffmpegenc_newcaps);
gst_element_add_pad (GST_ELEMENT (ffmpegenc), ffmpegenc->sinkpad);
ffmpegenc->srcpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (gst_ffmpegenc_src_factory), "src");
gst_element_add_pad (GST_ELEMENT (ffmpegenc), ffmpegenc->srcpad);
/* Initialization of element's private variables. */
ffmpegenc->need_resample = FALSE;
}
static void
gst_ffmpegenc_chain_audio (GstPad *pad, GstBuffer *inbuf)
{
GstBuffer *outbuf;
GstFFMpegEnc *ffmpegenc = (GstFFMpegEnc *)(gst_pad_get_parent (pad));
gpointer data;
gint size;
gint frame_size = ffmpegenc->context->frame_size * ffmpegenc->context->channels * 2;
data = GST_BUFFER_DATA (inbuf);
size = GST_BUFFER_SIZE (inbuf);
GST_DEBUG (0, "got buffer %p %d\n", data, size);
if (ffmpegenc->buffer_pos && (ffmpegenc->buffer_pos + size >= frame_size)) {
memcpy (ffmpegenc->buffer + ffmpegenc->buffer_pos, data, frame_size - ffmpegenc->buffer_pos);
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = frame_size;
GST_BUFFER_DATA (outbuf) = g_malloc (frame_size);
GST_BUFFER_SIZE (outbuf) = avcodec_encode_audio (ffmpegenc->context, GST_BUFFER_DATA (outbuf),
GST_BUFFER_SIZE (outbuf), (const short *)ffmpegenc->buffer);
gst_pad_push (ffmpegenc->srcpad, outbuf);
size -= (frame_size - ffmpegenc->buffer_pos);
data += (frame_size - ffmpegenc->buffer_pos);
ffmpegenc->buffer_pos = 0;
}
while (size >= frame_size) {
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = frame_size;
GST_BUFFER_DATA (outbuf) = g_malloc (frame_size);
GST_BUFFER_SIZE (outbuf) = avcodec_encode_audio (ffmpegenc->context, GST_BUFFER_DATA (outbuf),
GST_BUFFER_SIZE (outbuf), (const short *)data);
gst_pad_push (ffmpegenc->srcpad, outbuf);
size -= frame_size;
data += frame_size;
}
// save leftover
if (size) {
memcpy (ffmpegenc->buffer + ffmpegenc->buffer_pos, data, size);
ffmpegenc->buffer_pos += size;
}
gst_buffer_unref (inbuf);
}
static void
gst_ffmpegenc_chain_video (GstPad *pad, GstBuffer *inbuf)
{
GstBuffer *outbuf;
GstFFMpegEnc *ffmpegenc = (GstFFMpegEnc *)(gst_pad_get_parent (pad));
gpointer data;
gint size, frame_size;
AVPicture picture, rpicture, *toencode;
gboolean free_data = FALSE, free_res = FALSE;
data = GST_BUFFER_DATA (inbuf);
size = GST_BUFFER_SIZE (inbuf);
frame_size = ffmpegenc->in_width * ffmpegenc->in_height;
switch (ffmpegenc->context->pix_fmt) {
case PIX_FMT_YUV422:
{
guchar *temp;
temp = g_malloc ((frame_size * 3) /2 );
size = (frame_size * 3)/2;
img_convert_to_yuv420 (temp, data, PIX_FMT_YUV422,
ffmpegenc->in_width, ffmpegenc->in_height);
data = temp;
free_data = TRUE;
break;
}
default:
break;
}
picture.data[0] = data;
picture.data[1] = picture.data[0] + frame_size;
picture.data[2] = picture.data[1] + (frame_size >> 2);
picture.linesize[0] = ffmpegenc->in_width;
picture.linesize[1] = ffmpegenc->in_width >> 1;
picture.linesize[2] = ffmpegenc->in_width >> 1;
toencode = &picture;
if (ffmpegenc->need_resample) {
gint rframe_size = ffmpegenc->context->width * ffmpegenc->context->height;
rpicture.data[0] = g_malloc ((rframe_size * 3)/2);
rpicture.data[1] = rpicture.data[0] + rframe_size;
rpicture.data[2] = rpicture.data[1] + (rframe_size >> 2);
rpicture.linesize[0] = ffmpegenc->context->width;
rpicture.linesize[1] = ffmpegenc->context->width >> 1;
rpicture.linesize[2] = ffmpegenc->context->width >> 1;
free_res = TRUE;
toencode = &rpicture;
img_resample (ffmpegenc->resample, &rpicture, &picture);
}
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = size;
GST_BUFFER_DATA (outbuf) = g_malloc (size);
GST_BUFFER_SIZE (outbuf) = avcodec_encode_video (ffmpegenc->context, GST_BUFFER_DATA (outbuf),
GST_BUFFER_SIZE (outbuf), toencode);
gst_pad_push (ffmpegenc->srcpad, outbuf);
if (free_data)
g_free (data);
if (free_res)
g_free (rpicture.data[0]);
gst_buffer_unref (inbuf);
}
static void
gst_ffmpegenc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstFFMpegEnc *ffmpegenc;
/* Get a pointer of the right type. */
ffmpegenc = (GstFFMpegEnc *)(object);
/* Check the argument id to see which argument we're setting. */
switch (prop_id) {
case ARG_WIDTH:
ffmpegenc->out_width = g_value_get_int (value);
ffmpegenc->need_resample = (ffmpegenc->out_width != -1);
break;
case ARG_HEIGHT:
ffmpegenc->out_height = g_value_get_int (value);
ffmpegenc->need_resample = (ffmpegenc->out_height != -1);
break;
case ARG_BIT_RATE:
ffmpegenc->context->bit_rate = g_value_get_int (value);
break;
case ARG_FRAME_RATE:
ffmpegenc->context->frame_rate = g_value_get_int (value);
break;
case ARG_SAMPLE_RATE:
ffmpegenc->context->sample_rate = g_value_get_int (value);
break;
case ARG_GOP_SIZE:
ffmpegenc->context->gop_size = g_value_get_int (value);
break;
case ARG_HQ:
ffmpegenc->context->flags &= ~CODEC_FLAG_HQ;
ffmpegenc->context->flags |= (g_value_get_boolean (value)?CODEC_FLAG_HQ:0);
break;
case ARG_ME_METHOD:
motion_estimation_method = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* The set function is simply the inverse of the get fuction. */
static void
gst_ffmpegenc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstFFMpegEnc *ffmpegenc;
/* It's not null if we got it, but it might not be ours */
ffmpegenc = (GstFFMpegEnc *)(object);
switch (prop_id) {
case ARG_WIDTH:
g_value_set_int (value, ffmpegenc->out_width);
break;
case ARG_HEIGHT:
g_value_set_int (value, ffmpegenc->out_height);
break;
case ARG_BIT_RATE:
g_value_set_int (value, ffmpegenc->context->bit_rate);
break;
case ARG_SAMPLE_RATE:
g_value_set_int (value, ffmpegenc->context->sample_rate);
break;
case ARG_FRAME_RATE:
g_value_set_int (value, ffmpegenc->context->frame_rate);
break;
case ARG_GOP_SIZE:
g_value_set_int (value, ffmpegenc->context->gop_size);
break;
case ARG_HQ:
g_value_set_boolean (value, ffmpegenc->context->flags & CODEC_FLAG_HQ);
break;
case ARG_ME_METHOD:
g_value_set_enum (value, motion_estimation_method);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
gboolean
gst_ffmpegenc_register (GstPlugin *plugin)
{
GstElementFactory *factory;
GTypeInfo typeinfo = {
sizeof(GstFFMpegEncClass),
NULL,
NULL,
(GClassInitFunc)gst_ffmpegenc_class_init,
NULL,
NULL,
sizeof(GstFFMpegEnc),
0,
(GInstanceInitFunc)gst_ffmpegenc_init,
};
GType type;
GstElementDetails *details;
AVCodec *in_plugin;
in_plugin = first_avcodec;
enc_global_plugins = g_hash_table_new (NULL, NULL);
while (in_plugin) {
gchar *type_name;
gchar *codec_type;
if (in_plugin->encode) {
codec_type = "enc";
}
else {
goto next;
}
// construct the type
type_name = g_strdup_printf("ffmpeg%s_%s", codec_type, in_plugin->name);
// if it's already registered, drop it
if (g_type_from_name(type_name)) {
g_free(type_name);
goto next;
}
// create the gtk type now
type = g_type_register_static(GST_TYPE_ELEMENT, type_name , &typeinfo, 0);
// construct the element details struct
details = g_new0 (GstElementDetails,1);
details->longname = g_strdup (in_plugin->name);
details->klass = "Codec/FFMpeg";
details->description = g_strdup (in_plugin->name);
details->version = g_strdup("1.0.0");
details->author = g_strdup("The FFMPEG crew, GStreamer plugin by Wim Taymans <wim.taymans@chello.be>");
details->copyright = g_strdup("(c) 2001");
g_hash_table_insert (enc_global_plugins,
GINT_TO_POINTER (type),
(gpointer) in_plugin);
// register the plugin with gstreamer
factory = gst_elementfactory_new(type_name,type,details);
g_return_val_if_fail(factory != NULL, FALSE);
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_ffmpegenc_src_factory));
if (in_plugin->type == CODEC_TYPE_VIDEO) {
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_ffmpegenc_video_sink_factory));
}
else if (in_plugin->type == CODEC_TYPE_AUDIO) {
gst_elementfactory_add_padtemplate (factory,
GST_PADTEMPLATE_GET (gst_ffmpegenc_audio_sink_factory));
}
/* The very last thing is to register the elementfactory with the plugin. */
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
next:
in_plugin = in_plugin->next;
}
return TRUE;
}

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ext/ffmpeg/gstffmpegenc.h Normal file
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/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifndef __GST_FFMPEGENC_H__
#define __GST_FFMPEGENC_H__
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef __GST_FFMPEG_AV_H__
#define __GST_FFMPEG_AV_H__
#include <libavcodec/avcodec.h>
#endif /* __GST_FFMPEG_AV_H__ */
/* This is the definition of the element's object structure. */
typedef struct _GstFFMpegEnc GstFFMpegEnc;
/* The structure itself is derived from GstElement, as can be seen by the
* fact that there's a complete instance of the GstElement structure at
* the beginning of the object. This allows the element to be cast to
* an Element or even an Object.
*/
struct _GstFFMpegEnc {
GstElement element;
/* We need to keep track of our pads, so we do so here. */
GstPad *srcpad;
GstPad *sinkpad;
gboolean need_resample;
gint in_width, in_height;
gint out_width, out_height;
guchar *buffer;
gint buffer_pos;
AVCodecContext *context;
ImgReSampleContext *resample;
};
/* The other half of the object is its class. The class also derives from
* the same parent, though it must be the class structure this time.
* Function pointers for polymophic methods and signals are placed in this
* structure. */
typedef struct _GstFFMpegEncClass GstFFMpegEncClass;
struct _GstFFMpegEncClass {
GstElementClass parent_class;
AVCodec *in_plugin;
};
/* Five standard preprocessing macros are used in the Gtk+ object system.
* The first uses the object's _get_type function to return the GType
* of the object.
*/
#define GST_TYPE_FFMPEGENC \
(gst_ffmpegenc_get_type())
/* The second is a checking cast to the correct type. If the object passed
* is not the right type, a warning will be generated on stderr.
*/
#define GST_FFMPEGENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGENC,GstFFMpegEnc))
/* The third is a checking cast of the class instead of the object. */
#define GST_FFMPEGENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGENC,GstFFMpegEnc))
/* The last two simply check to see if the passed pointer is an object or
* class of the correct type. */
#define GST_IS_FFMPEGENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGENC))
#define GST_IS_FFMPEGENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGENC))
gboolean gst_ffmpegenc_register (GstPlugin *plugin);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_FFMPEGENC_H__ */