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gstreamer/ext/xvid/gstxvid.c
Tim-Philipp Müller 4ecc32c468 ext/xvid/gstxvid.c: Fix size calculation for I420/YV12. Fixes #348976. 
Original commit message from CVS:
* ext/xvid/gstxvid.c: (gst_xvid_image_fill):
Fix size calculation for I420/YV12. Fixes #348976.
2006-07-28 10:19:02 +00:00

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/* 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)
{
const gchar *mime = gst_structure_get_name (structure);
gint xvid_cs = -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;
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;
}
} else {
gint depth, bpp, 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;
}
}
return xvid_cs;
}
GstCaps *
gst_xvid_csp_to_caps (gint csp, gint w, gint h)
{
GstStructure *structure = 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;
}
structure = gst_structure_new ("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, 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;
}
structure = gst_structure_new ("video/x-raw-yuv",
"width", G_TYPE_INT, w,
"height", G_TYPE_INT, h, "format", GST_TYPE_FOURCC, fourcc, NULL);
break;
}
}
return gst_caps_new_full (structure, NULL);
}
gint
gst_xvid_image_get_size (gint csp, gint width, gint height)
{
xvid_image_t dummy_im;
return gst_xvid_image_fill (&dummy_im, NULL, csp, width, height);
}
gint
gst_xvid_image_fill (xvid_image_t * im, void *ptr, gint csp,
gint width, gint height)
{
gint stride, h2, size = 0;
im->csp = csp;
switch (csp) {
case XVID_CSP_I420:
case XVID_CSP_YV12:
/* planar */
/* luma */
stride = GST_ROUND_UP_4 (width);
h2 = GST_ROUND_UP_2 (height);
im->stride[0] = stride;
im->plane[0] = ptr;
/* chroma */
im->plane[1] = im->plane[0] + (stride * h2);
size += stride * height;
stride = GST_ROUND_UP_8 (width) / 2;
h2 = GST_ROUND_UP_2 (height) / 2;
im->stride[1] = stride;
im->plane[2] = im->plane[1] + (stride * h2);
im->stride[2] = stride;
size += 2 * (stride * h2);
break;
case XVID_CSP_RGB555:
case XVID_CSP_RGB565:
case XVID_CSP_YUY2:
case XVID_CSP_UYVY:
case XVID_CSP_YVYU:
/* packed */
stride = GST_ROUND_UP_4 (width * 2);
im->plane[0] = ptr;
im->stride[0] = stride;
size = stride * height;
break;
case XVID_CSP_BGR:
stride = GST_ROUND_UP_4 (width * 3);
im->plane[0] = ptr;
im->stride[0] = stride;
size = stride * height * 2;
break;
case XVID_CSP_ABGR:
case XVID_CSP_BGRA:
case XVID_CSP_RGBA:
#ifdef XVID_CSP_ARGB
case XVID_CSP_ARGB:
#endif
stride = width * 4;
im->plane[0] = ptr;
im->stride[0] = stride;
size = stride * height;
break;
}
return size;
}
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_SECONDARY, GST_TYPE_XVIDDEC));
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"xvid",
"XviD plugin library", plugin_init, VERSION, "GPL", GST_PACKAGE_NAME,
GST_PACKAGE_ORIGIN)
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