gstreamer/ext/xvid/gstxvid.c

307 lines
8 KiB
C
Raw Normal View History

/* GStreamer xvid encoder/decoder 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 <xvid.h>
#include <gst/video/video.h>
#include "gstxviddec.h"
#include "gstxvidenc.h"
gboolean
gst_xvid_init (void)
{
xvid_gbl_init_t xinit;
gint ret;
static gboolean is_init = FALSE;
/* only init once */
if (is_init == TRUE) {
return TRUE;
}
/* set up xvid initially (function pointers, CPU flags) */
gst_xvid_init_struct (xinit);
if ((ret = xvid_global(NULL, XVID_GBL_INIT, &xinit, NULL)) < 0) {
g_warning("Failed to initialize XviD: %s (%d)",
gst_xvid_error(ret), ret);
return FALSE;
}
GST_LOG ("Initted XviD version %d.%d.%d (API %d.%d)",
XVID_VERSION_MAJOR (XVID_VERSION),
XVID_VERSION_MINOR (XVID_VERSION),
XVID_VERSION_PATCH (XVID_VERSION),
XVID_API_MAJOR (XVID_API), XVID_API_MINOR (XVID_API));
is_init = TRUE;
return TRUE;
}
gchar *
gst_xvid_error (int errorcode)
{
gchar *error;
switch (errorcode) {
case XVID_ERR_FAIL:
error = "Operation failed";
break;
case 0:
error = "No error";
break;
case XVID_ERR_MEMORY:
error = "Memory allocation error";
break;
case XVID_ERR_FORMAT:
error = "File format not supported";
break;
case XVID_ERR_VERSION:
error = "Structure version not supported";
break;
default:
error = "Unknown error";
break;
}
return error;
}
gint
gst_xvid_structure_to_csp (GstStructure *structure,
gint w, gint *_stride, gint *_bpp)
{
const gchar *mime = gst_structure_get_name (structure);
gint xvid_cs = -1, stride = -1, bpp = -1;
if (!strcmp (mime, "video/x-raw-yuv")) {
guint32 fourcc;
gst_structure_get_fourcc (structure, "format", &fourcc);
switch (fourcc) {
case GST_MAKE_FOURCC('I','4','2','0'):
xvid_cs = XVID_CSP_I420;
stride = w;
bpp = 12;
break;
case GST_MAKE_FOURCC('Y','U','Y','2'):
xvid_cs = XVID_CSP_YUY2;
stride = w * 2;
bpp = 16;
break;
case GST_MAKE_FOURCC('Y','V','1','2'):
xvid_cs = XVID_CSP_YV12;
stride = w;
bpp = 12;
break;
case GST_MAKE_FOURCC('U','Y','V','Y'):
xvid_cs = XVID_CSP_UYVY;
stride = w * 2;
bpp = 16;
break;
case GST_MAKE_FOURCC('Y','V','Y','U'):
xvid_cs = XVID_CSP_YVYU;
stride = w * 2;
bpp = 16;
break;
}
} else {
gint depth, r_mask;
gst_structure_get_int(structure, "depth", &depth);
gst_structure_get_int(structure, "bpp", &bpp);
gst_structure_get_int(structure, "red_mask", &r_mask);
switch (depth) {
case 15:
xvid_cs = XVID_CSP_RGB555;
break;
case 16:
xvid_cs = XVID_CSP_RGB565;
break;
case 24:
if (bpp == 24) {
xvid_cs = XVID_CSP_BGR;
} else {
switch (r_mask) {
case 0xff000000:
xvid_cs = XVID_CSP_RGBA;
break;
#ifdef XVID_CSP_ARGB
case 0x00ff0000:
xvid_cs = XVID_CSP_ARGB;
break;
#endif
case 0x0000ff00:
xvid_cs = XVID_CSP_BGRA;
break;
case 0x000000ff:
xvid_cs = XVID_CSP_ABGR;
break;
}
}
break;
default:
break;
}
stride = w * bpp / 8;
}
if (_stride)
*_stride = stride;
if (_bpp)
*_bpp = bpp;
return xvid_cs;
}
GstCaps *
gst_xvid_csp_to_caps (gint csp, gint w, gint h, gdouble fps)
{
GstCaps *caps = NULL;
switch (csp) {
case XVID_CSP_RGB555:
case XVID_CSP_RGB565:
case XVID_CSP_BGR:
case XVID_CSP_ABGR:
case XVID_CSP_BGRA:
#ifdef XVID_CSP_ARGB
case XVID_CSP_ARGB:
#endif
case XVID_CSP_RGBA: {
gint r_mask = 0, b_mask = 0, g_mask = 0,
endianness = 0, bpp = 0, depth = 0;
switch (csp) {
case XVID_CSP_RGB555:
r_mask = GST_VIDEO_RED_MASK_15_INT;
g_mask = GST_VIDEO_GREEN_MASK_15_INT;
b_mask = GST_VIDEO_BLUE_MASK_15_INT;
endianness = G_BYTE_ORDER; depth = 15; bpp = 16;
break;
case XVID_CSP_RGB565:
r_mask = GST_VIDEO_RED_MASK_16_INT;
g_mask = GST_VIDEO_GREEN_MASK_16_INT;
b_mask = GST_VIDEO_BLUE_MASK_16_INT;
endianness = G_BYTE_ORDER; depth = 16; bpp = 16;
break;
case XVID_CSP_BGR:
r_mask = 0x0000ff; g_mask = 0x00ff00; b_mask = 0xff0000;
endianness = G_BIG_ENDIAN; depth = 24; bpp = 24;
break;
case XVID_CSP_ABGR:
r_mask = 0x000000ff; g_mask = 0x0000ff00; b_mask = 0x00ff0000;
endianness = G_BIG_ENDIAN; depth = 24; bpp = 32;
break;
case XVID_CSP_BGRA:
r_mask = 0x0000ff00; g_mask = 0x00ff0000; b_mask = 0xff000000;
endianness = G_BIG_ENDIAN; depth = 24; bpp = 32;
break;
#ifdef XVID_CSP_ARGB
case XVID_CSP_ARGB:
r_mask = 0x00ff0000; g_mask = 0x0000ff00; b_mask = 0x000000ff;
endianness = G_BIG_ENDIAN; depth = 24; bpp = 32;
break;
#endif
case XVID_CSP_RGBA:
r_mask = 0xff000000; g_mask = 0x00ff0000; b_mask = 0x0000ff00;
endianness = G_BIG_ENDIAN; depth = 24; bpp = 32;
break;
}
caps = gst_caps_new_simple ("video/x-raw-rgb",
"width", G_TYPE_INT, w,
"height", G_TYPE_INT, h,
"depth", G_TYPE_INT, depth,
"bpp", G_TYPE_INT, bpp,
"endianness", G_TYPE_INT, endianness,
"red_mask", G_TYPE_INT, r_mask,
"green_mask", G_TYPE_INT, g_mask,
"blue_mask", G_TYPE_INT, b_mask,
"framerate", G_TYPE_DOUBLE, fps,
NULL);
break;
}
case XVID_CSP_YUY2:
case XVID_CSP_YVYU:
case XVID_CSP_UYVY:
case XVID_CSP_I420:
case XVID_CSP_YV12: {
guint32 fourcc = 0;
switch (csp) {
case XVID_CSP_YUY2:
fourcc = GST_MAKE_FOURCC ('Y','U','Y','2');
break;
case XVID_CSP_YVYU:
fourcc = GST_MAKE_FOURCC ('Y','V','Y','U');
break;
case XVID_CSP_UYVY:
fourcc = GST_MAKE_FOURCC ('U','Y','V','Y');
break;
case XVID_CSP_I420:
fourcc = GST_MAKE_FOURCC ('I','4','2','0');
break;
case XVID_CSP_YV12:
fourcc = GST_MAKE_FOURCC ('Y','V','1','2');
break;
}
caps = gst_caps_new_simple ("video/x-raw-yuv",
"width", G_TYPE_INT, w,
"height", G_TYPE_INT, h,
"format", GST_TYPE_FOURCC, fourcc,
"framerate", G_TYPE_DOUBLE, fps,
NULL);
break;
}
}
return caps;
}
static gboolean
plugin_init (GstPlugin *plugin)
{
return (gst_element_register (plugin, "xvidenc",
GST_RANK_NONE, GST_TYPE_XVIDENC) &&
gst_element_register (plugin, "xviddec",
GST_RANK_NONE, GST_TYPE_XVIDDEC));
}
GST_PLUGIN_DEFINE (
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"xvid",
"XviD plugin library",
plugin_init,
VERSION,
"GPL",
GST_PACKAGE,
GST_ORIGIN
)