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added jpeg and shout (icecastsend has been renamed to shout, there are other libs that do icecast too)

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Original commit message from CVS:
added jpeg and shout
(icecastsend has been renamed to shout, there are other libs that do icecast too)
This commit is contained in:
Thomas Vander Stichele 2001-12-23 15:24:07 +00:00
parent a784168b8c
commit a38b8a35f6
8 changed files with 894 additions and 21 deletions
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30
configure.ac
View file

@ -504,11 +504,13 @@ dnl CPPFLAGS="$CPPFLAGS $GLIB_CFLAGS"
dnl AC_CHECK_HEADER(libdv/dv.h, :, HAVE_LIBDV=no)
dnl CPPFLAGS="$libdvcheck_save_CPPFLAGS"
dnl *** libjpeg ***
dnl *** jpeg ***
dnl FIXME: we could use header checks here as well IMO
translit(dnm, m, l) AM_CONDITIONAL(USE_LIBJPEG, true)
GST_CHECK_FEATURE(LIBJPEG, [libjpeg], jpegenc jpegdec, [
AC_CHECK_LIB(jpeg, jpeg_set_defaults, HAVE_LIBJPEG="yes", HAVE_LIBJPEG="no")
translit(dnm, m, l) AM_CONDITIONAL(USE_JPEG, true)
GST_CHECK_FEATURE(JPEG, [jpeg], jpegenc jpegdec, [
AC_CHECK_LIB(jpeg, jpeg_set_defaults, HAVE_JPEG="yes", HAVE_JPEG="no")
JPEG_LIBS="-ljpeg"
AC_SUBST(JPEG_LIBS)
])
dnl *** mad ***
@ -565,9 +567,10 @@ GST_CHECK_FEATURE(SDL, [SDL plugin], sdlvideosink, [
])
dnl *** shout ***
translit(dnm, m, l) AM_CONDITIONAL(USE_LIBSHOUT, true)
GST_CHECK_FEATURE(LIBSHOUT, [shout plugin], icecastsend, [
GST_CHECK_LIBHEADER(LIBSHOUT, shout, shout_init_connection,, shout/shout.h, LIBSHOUT_LIBS="-lshout")
translit(dnm, m, l) AM_CONDITIONAL(USE_SHOUT, true)
GST_CHECK_FEATURE(SHOUT, [shout plugin], icecastsend, [
GST_CHECK_LIBHEADER(SHOUT, shout, shout_init_connection,, shout/shout.h, SHOUT_LIBS="-lshout")
AC_SUBST(SHOUT_LIBS)
])
dnl for sidplay
@ -861,14 +864,6 @@ if test "x$HAVE_LIBMIKMOD" = xyes; then
AC_DEFINE(HAVE_LIBMIKMOD)
fi
if test "x$HAVE_LIBJPEG" = xyes; then
AC_DEFINE(HAVE_LIBJPEG)
fi
if test "x$HAVE_LIBHERMES" = "xyes"; then
AC_DEFINE(HAVE_LIBHERMES)
fi
if test "x$HAVE_A52DEC" = xyes; then
AC_DEFINE(HAVE_A52DEC)
fi
@ -896,9 +891,7 @@ AM_CONDITIONAL(EXPERIMENTAL, test "$EXPERIMENTAL" = "$xyes")
AM_CONDITIONAL(BROKEN, test "$BROKEN" = "$xyes")
AM_CONDITIONAL(HAVE_LIBMIKMOD, test "x$HAVE_LIBMIKMOD" = "xyes")
AM_CONDITIONAL(HAVE_LIBJPEG, test "x$HAVE_LIBJPEG" = "xyes")
AM_CONDITIONAL(HAVE_LIBSDL, test "x$HAVE_LIBSDL" = "xyes")
AM_CONDITIONAL(HAVE_LIBHERMES, test "x$HAVE_LIBHERMES" = "xyes")
AM_CONDITIONAL(HAVE_NASM, test "x$HAVE_NASM" = "xyes")
AM_CONDITIONAL(HAVE_LIBGLADE_GNOME, test "x$HAVE_LIBGLADE_GNOME" = "xyes")
AM_CONDITIONAL(HAVE_GNOME, test "x$HAVE_GNOME" = "xyes")
@ -913,7 +906,6 @@ AM_CONDITIONAL(HAVE_PDFTOPS, $HAVE_PDFTOPS)
AM_CONDITIONAL(HAVE_XSLTPROC, $HAVE_XSLTPROC)
AM_CONDITIONAL(HAVE_FIG2DEV_PNG, $HAVE_FIG2DEV_PNG)
AM_CONDITIONAL(HAVE_FIG2DEV_PDF, $HAVE_FIG2DEV_PDF)
AM_CONDITIONAL(HAVE_LIBSHOUT, test "x$HAVE_LIBSHOUT" = "xyes")
AM_CONDITIONAL(HAVE_LIBRTP, test "x$HAVE_LIBRTP" = "xyes")
AM_CONDITIONAL(HAVE_ARTS, test "x$HAVE_ARTS" = "xyes")
AM_CONDITIONAL(HAVE_XMMS, test "x$HAVE_XMMS" = "xyes")
@ -1079,9 +1071,11 @@ ext/esd/Makefile
ext/flac/Makefile
ext/gsm/Makefile
ext/hermes/Makefile
ext/jpeg/Makefile
ext/lame/Makefile
ext/mad/Makefile
ext/mpeg2dec/Makefile
ext/shout/Makefile
ext/sdl/Makefile
ext/vorbis/Makefile
gst-libs/Makefile

19
ext/Makefile.am
View file

@ -76,6 +76,13 @@ else
LAME_DIR=
endif
if USE_JPEG
JPEG_DIR=jpeg
else
JPEG_DIR=
endif
if USE_MAD
MAD_DIR=mad
else
@ -94,6 +101,12 @@ else
SDL_DIR=
endif
if USE_SHOUT
SHOUT_DIR=shout
else
SHOUT_DIR=
endif
if USE_VORBIS
VORBIS_DIR=vorbis
else
@ -103,8 +116,8 @@ endif
SUBDIRS=$(A52_DIR) $(AALIB_DIR) $(ALSA_DIR) $(AUDIOFILE_DIR) \
$(AVIFILE_DIR) $(CDPARANOIA_DIR) $(DVDREAD_DIR) $(ESD_DIR) \
$(FESTIVAL_DIR) $(FLAC_DIR) $(GSM_DIR) $(HERMES_DIR) \
$(LAME_DIR) $(MAD_DIR) $(MPEG2DEC_DIR) \
$(SDL_DIR) $(VORBIS_DIR)
$(JPEG_DIR) $(LAME_DIR) $(MAD_DIR) $(MPEG2DEC_DIR) \
$(SDL_DIR) $(SHOUT_DIR) $(VORBIS_DIR)
DIST_SUBDIRS=a52 aalib alsa avifile audiofile cdparanoia dvdread esd \
festival flac gsm hermes lame mad mpeg2dec sdl vorbis
festival flac gsm hermes jpeg lame mad mpeg2dec sdl shout vorbis

11
ext/jpeg/Makefile.am Normal file
View file

@ -0,0 +1,11 @@
plugindir = $(libdir)/gst
plugin_LTLIBRARIES = libgstjpeg.la
libgstjpeg_la_SOURCES = gstjpeg.c gstjpegdec.c gstjpegenc.c
libgstjpeg_la_LIBADD = $(JPEG_LIBS)
libgstjpeg_la_CFLAGS = $(GST_CFLAGS)
## FIXME: check these CFLAGS
## -O3 $(FOMIT_FRAME_POINTER) -funroll-all-loops -finline-functions -ffast-math -DNDEBUG
noinst_HEADERS = gstjpegdec.h gstjpegenc.h

112
ext/jpeg/gstjpeg.c Normal file
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@ -0,0 +1,112 @@
/* 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 "gstjpegdec.h"
#include "gstjpegenc.h"
/* elementfactory information */
extern GstElementDetails gst_jpegdec_details;
extern GstElementDetails gst_jpegenc_details;
GstPadTemplate *jpegdec_src_template, *jpegdec_sink_template;
GstPadTemplate *jpegenc_src_template, *jpegenc_sink_template;
static GstCaps*
jpeg_caps_factory (void)
{
return
gst_caps_new (
"jpeg_jpeg",
"video/jpeg",
NULL);
}
static GstCaps*
raw_caps_factory (void)
{
return
gst_caps_new (
"jpeg_raw",
"video/raw",
gst_props_new (
"format", GST_PROPS_LIST (
GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0'))
),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096),
NULL));
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *dec, *enc;
GstCaps *raw_caps, *jpeg_caps;
/* create an elementfactory for the jpegdec element */
enc = gst_elementfactory_new("jpegenc",GST_TYPE_JPEGENC,
&gst_jpegenc_details);
g_return_val_if_fail(enc != NULL, FALSE);
raw_caps = raw_caps_factory ();
jpeg_caps = jpeg_caps_factory ();
/* register sink pads */
jpegenc_sink_template = gst_padtemplate_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
raw_caps, NULL);
gst_elementfactory_add_padtemplate (enc, jpegenc_sink_template);
/* register src pads */
jpegenc_src_template = gst_padtemplate_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
jpeg_caps, NULL);
gst_elementfactory_add_padtemplate (enc, jpegenc_src_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (enc));
/* create an elementfactory for the jpegdec element */
dec = gst_elementfactory_new("jpegdec",GST_TYPE_JPEGDEC,
&gst_jpegdec_details);
g_return_val_if_fail(dec != NULL, FALSE);
/* register sink pads */
jpegdec_sink_template = gst_padtemplate_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
jpeg_caps, NULL);
gst_elementfactory_add_padtemplate (dec, jpegdec_sink_template);
/* register src pads */
jpegdec_src_template = gst_padtemplate_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
raw_caps, NULL);
gst_elementfactory_add_padtemplate (dec, jpegdec_src_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (dec));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"jpeg",
plugin_init
};

265
ext/jpeg/gstjpegdec.c Normal file
View file

@ -0,0 +1,265 @@
/* 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 <string.h>
//#define DEBUG_ENABLED
#include "gstjpegdec.h"
extern GstPadTemplate *jpegdec_src_template, *jpegdec_sink_template;
/* elementfactory information */
GstElementDetails gst_jpegdec_details = {
"jpeg image decoder",
"Filter/Decoder/Image",
".jpeg",
VERSION,
"Wim Taymans <wim.taymans@tvd.be>",
"(C) 2000",
};
/* JpegDec signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
/* FILL ME */
};
static void gst_jpegdec_class_init (GstJpegDec *klass);
static void gst_jpegdec_init (GstJpegDec *jpegdec);
static void gst_jpegdec_chain (GstPad *pad, GstBuffer *buf);
static GstElementClass *parent_class = NULL;
//static guint gst_jpegdec_signals[LAST_SIGNAL] = { 0 };
GType
gst_jpegdec_get_type(void) {
static GType jpegdec_type = 0;
if (!jpegdec_type) {
static const GTypeInfo jpegdec_info = {
sizeof(GstJpegDec), NULL,
NULL,
(GClassInitFunc)gst_jpegdec_class_init,
NULL,
NULL,
sizeof(GstJpegDec),
0,
(GInstanceInitFunc)gst_jpegdec_init,
};
jpegdec_type = g_type_register_static(GST_TYPE_ELEMENT, "GstJpegDec", &jpegdec_info, 0);
}
return jpegdec_type;
}
static void
gst_jpegdec_class_init (GstJpegDec *klass)
{
GstElementClass *gstelement_class;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
}
static void
gst_jpegdec_init_source (j_decompress_ptr cinfo)
{
GST_DEBUG (0,"gst_jpegdec_chain: init_source\n");
}
static gboolean
gst_jpegdec_fill_input_buffer (j_decompress_ptr cinfo)
{
GST_DEBUG (0,"gst_jpegdec_chain: fill_input_buffer\n");
return TRUE;
}
static void
gst_jpegdec_skip_input_data (j_decompress_ptr cinfo, glong num_bytes)
{
GST_DEBUG (0,"gst_jpegdec_chain: skip_input_data\n");
}
static gboolean
gst_jpegdec_resync_to_restart (j_decompress_ptr cinfo, gint desired)
{
GST_DEBUG (0,"gst_jpegdec_chain: resync_to_start\n");
return TRUE;
}
static void
gst_jpegdec_term_source (j_decompress_ptr cinfo)
{
GST_DEBUG (0,"gst_jpegdec_chain: term_source\n");
}
static void
gst_jpegdec_init (GstJpegDec *jpegdec)
{
GST_DEBUG (0,"gst_jpegdec_init: initializing\n");
/* create the sink and src pads */
jpegdec->sinkpad = gst_pad_new_from_template (jpegdec_sink_template, "sink");
gst_element_add_pad(GST_ELEMENT(jpegdec),jpegdec->sinkpad);
gst_pad_set_chain_function(jpegdec->sinkpad,gst_jpegdec_chain);
jpegdec->srcpad = gst_pad_new_from_template (jpegdec_src_template, "src");
gst_element_add_pad(GST_ELEMENT(jpegdec),jpegdec->srcpad);
/* initialize the jpegdec decoder state */
jpegdec->next_time = 0;
// reset the initial video state
jpegdec->format = -1;
jpegdec->width = -1;
jpegdec->height = -1;
jpegdec->line[0] = NULL;
jpegdec->line[1] = NULL;
jpegdec->line[2] = NULL;
/* setup jpeglib */
memset(&jpegdec->cinfo, 0, sizeof(jpegdec->cinfo));
memset(&jpegdec->jerr, 0, sizeof(jpegdec->jerr));
jpegdec->cinfo.err = jpeg_std_error(&jpegdec->jerr);
jpeg_create_decompress(&jpegdec->cinfo);
jpegdec->jsrc.init_source = gst_jpegdec_init_source;
jpegdec->jsrc.fill_input_buffer = gst_jpegdec_fill_input_buffer;
jpegdec->jsrc.skip_input_data = gst_jpegdec_skip_input_data;
jpegdec->jsrc.resync_to_restart = gst_jpegdec_resync_to_restart;
jpegdec->jsrc.term_source = gst_jpegdec_term_source;
jpegdec->cinfo.src = &jpegdec->jsrc;
}
static void
gst_jpegdec_chain (GstPad *pad, GstBuffer *buf)
{
GstJpegDec *jpegdec;
guchar *data, *outdata;
gulong size, outsize;
GstBuffer *outbuf;
//GstMeta *meta;
gint width, height, width2;
guchar *base[3];
gint i,j, k;
gint r_h, r_v;
g_return_if_fail(pad != NULL);
g_return_if_fail(GST_IS_PAD(pad));
g_return_if_fail(buf != NULL);
//g_return_if_fail(GST_IS_BUFFER(buf));
jpegdec = GST_JPEGDEC (GST_OBJECT_PARENT (pad));
if (!GST_PAD_CONNECTED (jpegdec->srcpad)) {
gst_buffer_unref (buf);
return;
}
data = (guchar *)GST_BUFFER_DATA(buf);
size = GST_BUFFER_SIZE(buf);
GST_DEBUG (0,"gst_jpegdec_chain: got buffer of %ld bytes in '%s'\n",size,
GST_OBJECT_NAME (jpegdec));
jpegdec->jsrc.next_input_byte = data;
jpegdec->jsrc.bytes_in_buffer = size;
GST_DEBUG (0,"gst_jpegdec_chain: reading header %08lx\n", *(gulong *)data);
jpeg_read_header(&jpegdec->cinfo, TRUE);
r_h = jpegdec->cinfo.cur_comp_info[0]->h_samp_factor;
r_v = jpegdec->cinfo.cur_comp_info[0]->v_samp_factor;
//g_print ("%d %d\n", r_h, r_v);
//g_print ("%d %d\n", jpegdec->cinfo.cur_comp_info[1]->h_samp_factor, jpegdec->cinfo.cur_comp_info[1]->v_samp_factor);
//g_print ("%d %d\n", jpegdec->cinfo.cur_comp_info[2]->h_samp_factor, jpegdec->cinfo.cur_comp_info[2]->v_samp_factor);
jpegdec->cinfo.do_fancy_upsampling = FALSE;
jpegdec->cinfo.do_block_smoothing = FALSE;
jpegdec->cinfo.out_color_space = JCS_YCbCr;
jpegdec->cinfo.dct_method = JDCT_IFAST;
jpegdec->cinfo.raw_data_out = TRUE;
GST_DEBUG (0,"gst_jpegdec_chain: starting decompress\n");
jpeg_start_decompress(&jpegdec->cinfo);
width = jpegdec->cinfo.output_width;
height = jpegdec->cinfo.output_height;
GST_DEBUG (0,"gst_jpegdec_chain: width %d, height %d\n", width, height);
outbuf = gst_buffer_new();
outsize = GST_BUFFER_SIZE(outbuf) = width*height +
width*height / 2;
outdata = GST_BUFFER_DATA(outbuf) = g_malloc(outsize);
GST_BUFFER_TIMESTAMP(outbuf) = GST_BUFFER_TIMESTAMP(buf);
if (jpegdec->height != height) {
jpegdec->line[0] = g_realloc(jpegdec->line[0], height*sizeof(char*));
jpegdec->line[1] = g_realloc(jpegdec->line[1], height*sizeof(char*));
jpegdec->line[2] = g_realloc(jpegdec->line[2], height*sizeof(char*));
jpegdec->height = height;
gst_pad_set_caps (jpegdec->srcpad, gst_caps_new (
"jpegdec_caps",
"video/raw",
gst_props_new (
"format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')),
"width", GST_PROPS_INT (width),
"height", GST_PROPS_INT (height),
NULL)));
}
/* mind the swap, jpeglib outputs blue chroma first */
base[0] = outdata;
base[1] = base[0]+width*height;
base[2] = base[1]+width*height/4;
width2 = width >> 1;
GST_DEBUG (0,"gst_jpegdec_chain: decompressing %u\n", jpegdec->cinfo.rec_outbuf_height);
for (i = 0; i < height; i += r_v*DCTSIZE) {
for (j=0, k=0; j< (r_v*DCTSIZE); j += r_v, k++) {
jpegdec->line[0][j] = base[0]; base[0] += width;
if (r_v == 2) {
jpegdec->line[0][j+1] = base[0]; base[0] += width;
}
jpegdec->line[1][k] = base[1];
jpegdec->line[2][k] = base[2];
if (r_v == 2 || k&1) {
base[1] += width2; base[2] += width2;
}
}
//g_print ("%d\n", jpegdec->cinfo.output_scanline);
jpeg_read_raw_data(&jpegdec->cinfo, jpegdec->line, r_v*DCTSIZE);
}
GST_DEBUG (0,"gst_jpegdec_chain: decompressing finished\n");
jpeg_finish_decompress(&jpegdec->cinfo);
GST_DEBUG (0,"gst_jpegdec_chain: sending buffer\n");
gst_pad_push(jpegdec->srcpad, outbuf);
gst_buffer_unref(buf);
}

87
ext/jpeg/gstjpegdec.h Normal file
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@ -0,0 +1,87 @@
/* 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_JPEGDEC_H__
#define __GST_JPEGDEC_H__
#include <config.h>
#include <gst/gst.h>
#include <jpeglib.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_JPEGDEC \
(gst_jpegdec_get_type())
#define GST_JPEGDEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_JPEGDEC,GstJpegDec))
#define GST_JPEGDEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_JPEGDEC,GstJpegDec))
#define GST_IS_JPEGDEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_JPEGDEC))
#define GST_IS_JPEGDEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_JPEGDEC))
typedef struct _GstJpegDec GstJpegDec;
typedef struct _GstJpegDecClass GstJpegDecClass;
struct _GstJpegDec {
GstElement element;
/* pads */
GstPad *sinkpad,*srcpad;
int parse_state;
// the timestamp of the next frame
guint64 next_time;
// the interval between frames
guint64 time_interval;
// video state
gint format;
gint width;
gint height;
// the size of the output buffer
gint outsize;
// the jpeg line buffer
guchar **line[3];
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
struct jpeg_source_mgr jsrc;
};
struct _GstJpegDecClass {
GstElementClass parent_class;
};
GType gst_jpegdec_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_JPEGDEC_H__ */

304
ext/jpeg/gstjpegenc.c Normal file
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@ -0,0 +1,304 @@
/* 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 <string.h>
#include "gstjpegenc.h"
/* elementfactory information */
GstElementDetails gst_jpegenc_details = {
"jpeg image encoder",
"Filter/Encoder/Image",
".jpeg",
VERSION,
"Wim Taymans <wim.taymans@tvd.be>",
"(C) 2000",
};
/* JpegEnc signals and args */
enum {
FRAME_ENCODED,
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
/* FILL ME */
};
static void gst_jpegenc_class_init (GstJpegEnc *klass);
static void gst_jpegenc_init (GstJpegEnc *jpegenc);
static void gst_jpegenc_chain (GstPad *pad,GstBuffer *buf);
static GstBuffer *gst_jpegenc_get (GstPad *pad);
static void gst_jpegenc_resync (GstJpegEnc *jpegenc);
static GstElementClass *parent_class = NULL;
static guint gst_jpegenc_signals[LAST_SIGNAL] = { 0 };
GType
gst_jpegenc_get_type (void)
{
static GType jpegenc_type = 0;
if (!jpegenc_type) {
static const GTypeInfo jpegenc_info = {
sizeof(GstJpegEnc), NULL,
NULL,
(GClassInitFunc)gst_jpegenc_class_init,
NULL,
NULL,
sizeof(GstJpegEnc),
0,
(GInstanceInitFunc)gst_jpegenc_init,
};
jpegenc_type = g_type_register_static(GST_TYPE_ELEMENT, "GstJpegEnc", &jpegenc_info, 0);
}
return jpegenc_type;
}
static void
gst_jpegenc_class_init (GstJpegEnc *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
gst_jpegenc_signals[FRAME_ENCODED] =
g_signal_new ("frame_encoded", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstJpegEncClass, frame_encoded), NULL, NULL,
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
}
static void
gst_jpegenc_init_destination (j_compress_ptr cinfo)
{
GST_DEBUG (0,"gst_jpegenc_chain: init_destination\n");
}
static gboolean
gst_jpegenc_flush_destination (j_compress_ptr cinfo)
{
GST_DEBUG (0,"gst_jpegenc_chain: flush_destination: buffer too small !!!\n");
return TRUE;
}
static void gst_jpegenc_term_destination (j_compress_ptr cinfo)
{
GST_DEBUG (0,"gst_jpegenc_chain: term_source\n");
}
static void
gst_jpegenc_init (GstJpegEnc *jpegenc)
{
/* create the sink and src pads */
jpegenc->sinkpad = gst_pad_new("sink",GST_PAD_SINK);
gst_element_add_pad(GST_ELEMENT(jpegenc),jpegenc->sinkpad);
gst_pad_set_chain_function(jpegenc->sinkpad,gst_jpegenc_chain);
gst_pad_set_get_function(jpegenc->sinkpad,gst_jpegenc_get);
jpegenc->srcpad = gst_pad_new("src",GST_PAD_SRC);
gst_element_add_pad(GST_ELEMENT(jpegenc),jpegenc->srcpad);
// reset the initial video state
jpegenc->width = -1;
jpegenc->height = -1;
/* setup jpeglib */
memset(&jpegenc->cinfo, 0, sizeof(jpegenc->cinfo));
memset(&jpegenc->jerr, 0, sizeof(jpegenc->jerr));
jpegenc->cinfo.err = jpeg_std_error(&jpegenc->jerr);
jpeg_create_compress(&jpegenc->cinfo);
GST_DEBUG (0,"gst_jpegenc_init: setting line buffers\n");
jpegenc->line[0] = NULL;
jpegenc->line[1] = NULL;
jpegenc->line[2] = NULL;
gst_jpegenc_resync(jpegenc);
jpegenc->jdest.init_destination = gst_jpegenc_init_destination;
jpegenc->jdest.empty_output_buffer = gst_jpegenc_flush_destination;
jpegenc->jdest.term_destination = gst_jpegenc_term_destination;
jpegenc->cinfo.dest = &jpegenc->jdest;
}
static void
gst_jpegenc_resync (GstJpegEnc *jpegenc)
{
guint size = 0;
gint width, height;
GST_DEBUG (0,"gst_jpegenc_resync: resync\n");
jpegenc->cinfo.image_width = width = jpegenc->width;
jpegenc->cinfo.image_height = height = jpegenc->height;
jpegenc->cinfo.input_components = 3;
GST_DEBUG (0,"gst_jpegenc_resync: wdith %d, height %d\n", width, height);
jpeg_set_defaults(&jpegenc->cinfo);
jpegenc->cinfo.dct_method = JDCT_FASTEST;
//jpegenc->cinfo.dct_method = JDCT_DEFAULT;
//jpegenc->cinfo.smoothing_factor = 10;
jpeg_set_quality(&jpegenc->cinfo, 85, TRUE);
/*
switch (jpegenc->format) {
case GST_COLORSPACE_RGB24:
size = 3;
GST_DEBUG (0,"gst_jpegenc_resync: setting format to RGB24\n");
jpegenc->cinfo.in_color_space = JCS_RGB;
jpegenc->cinfo.raw_data_in = FALSE;
break;
case GST_COLORSPACE_YUV420P:
size = 2;
jpegenc->cinfo.raw_data_in = TRUE;
jpegenc->cinfo.in_color_space = JCS_YCbCr;
GST_DEBUG (0,"gst_jpegenc_resync: setting format to YUV420P\n");
jpegenc->cinfo.comp_info[0].h_samp_factor = 2;
jpegenc->cinfo.comp_info[0].v_samp_factor = 2;
jpegenc->cinfo.comp_info[1].h_samp_factor = 1;
jpegenc->cinfo.comp_info[1].v_samp_factor = 1;
jpegenc->cinfo.comp_info[2].h_samp_factor = 1;
jpegenc->cinfo.comp_info[2].v_samp_factor = 1;
if (height != -1) {
jpegenc->line[0] = g_realloc(jpegenc->line[0], height*sizeof(char*));
jpegenc->line[1] = g_realloc(jpegenc->line[1], height*sizeof(char*)/2);
jpegenc->line[2] = g_realloc(jpegenc->line[2], height*sizeof(char*)/2);
}
GST_DEBUG (0,"gst_jpegenc_resync: setting format done\n");
break;
default:
printf("gst_jpegenc_resync: unsupported colorspace, using RGB\n");
size = 3;
jpegenc->cinfo.in_color_space = JCS_RGB;
break;
}
*/
jpegenc->bufsize = jpegenc->width*jpegenc->height*size;
jpegenc->row_stride = width * size;
jpeg_suppress_tables(&jpegenc->cinfo, TRUE);
jpegenc->buffer = NULL;
GST_DEBUG (0,"gst_jpegenc_resync: resync done\n");
}
static GstBuffer*
gst_jpegenc_get (GstPad *pad)
{
GstJpegEnc *jpegenc;
GstBuffer *newbuf;
GST_DEBUG (0,"gst_jpegenc_chain: pull buffer\n");
g_return_val_if_fail (pad != NULL, NULL);
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
jpegenc = GST_JPEGENC (GST_OBJECT_PARENT (pad));
if (jpegenc->buffer == NULL || GST_BUFFER_REFCOUNT(jpegenc->buffer) != 1) {
if (jpegenc->buffer) gst_buffer_unref(jpegenc->buffer);
GST_DEBUG (0,"gst_jpegenc_chain: new buffer\n");
newbuf = jpegenc->buffer = gst_buffer_new();
GST_BUFFER_DATA(newbuf) = g_malloc(jpegenc->bufsize);
GST_BUFFER_SIZE(newbuf) = jpegenc->bufsize;
}
gst_buffer_ref(jpegenc->buffer);
return jpegenc->buffer;
}
static void
gst_jpegenc_chain (GstPad *pad, GstBuffer *buf)
{
GstJpegEnc *jpegenc;
guchar *data, *outdata;
gulong size, outsize;
GstBuffer *outbuf;
// GstMeta *meta;
guint height, width, width2;
guchar *base[3];
gint i,j, k;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
//g_return_if_fail(GST_IS_BUFFER(buf));
//usleep(10000);
jpegenc = GST_JPEGENC (GST_OBJECT_PARENT (pad));
data = GST_BUFFER_DATA(buf);
size = GST_BUFFER_SIZE(buf);
GST_DEBUG (0,"gst_jpegenc_chain: got buffer of %ld bytes in '%s'\n",size,
GST_OBJECT_NAME (jpegenc));
outbuf = gst_buffer_new();
outsize = GST_BUFFER_SIZE(outbuf) = jpegenc->bufsize;
outdata = GST_BUFFER_DATA(outbuf) = g_malloc(outsize);
GST_BUFFER_TIMESTAMP(outbuf) = GST_BUFFER_TIMESTAMP(buf);
width = jpegenc->width;
height = jpegenc->height;
base[0] = data;
base[1] = base[0]+width*height;
base[2] = base[1]+width*height/4;
jpegenc->jdest.next_output_byte = outdata;
jpegenc->jdest.free_in_buffer = outsize;
jpeg_start_compress(&jpegenc->cinfo, TRUE);
width2 = width>>1;
GST_DEBUG (0,"gst_jpegdec_chain: compressing\n");
for (i = 0; i < height; i += 2*DCTSIZE) {
for (j=0, k=0; j<2*DCTSIZE;j+=2, k++) {
jpegenc->line[0][j] = base[0]; base[0] += width;
jpegenc->line[0][j+1] = base[0]; base[0] += width;
jpegenc->line[1][k] = base[1]; base[1] += width2;
jpegenc->line[2][k] = base[2]; base[2] += width2;
}
jpeg_write_raw_data(&jpegenc->cinfo, jpegenc->line, 2*DCTSIZE);
}
jpeg_finish_compress(&jpegenc->cinfo);
GST_DEBUG (0,"gst_jpegdec_chain: compressing done\n");
GST_BUFFER_SIZE(outbuf) = (((outsize - jpegenc->jdest.free_in_buffer)+3)&~3);
gst_pad_push(jpegenc->srcpad, outbuf);
g_signal_emit(G_OBJECT(jpegenc),gst_jpegenc_signals[FRAME_ENCODED], 0);
gst_buffer_unref(buf);
}

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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_JPEGENC_H__
#define __GST_JPEGENC_H__
#include <config.h>
#include <gst/gst.h>
#include <jpeglib.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_JPEGENC \
(gst_jpegenc_get_type())
#define GST_JPEGENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_JPEGENC,GstJpegEnc))
#define GST_JPEGENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_JPEGENC,GstJpegEnc))
#define GST_IS_JPEGENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_JPEGENC))
#define GST_IS_JPEGENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_JPEGENC))
typedef struct _GstJpegEnc GstJpegEnc;
typedef struct _GstJpegEncClass GstJpegEncClass;
struct _GstJpegEnc {
GstElement element;
/* pads */
GstPad *sinkpad,*srcpad;
// video state
gint format;
gint width;
gint height;
// the video buffer
gint bufsize;
GstBuffer *buffer;
guint row_stride;
// the jpeg line buffer
guchar **line[3];
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
struct jpeg_destination_mgr jdest;
};
struct _GstJpegEncClass {
GstElementClass parent_class;
/* signals */
void (*frame_encoded) (GstElement *element);
};
GType gst_jpegenc_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_JPEGENC_H__ */