gstreamer/gst-libs/gst/vaapi/gstvaapiutils.c

129 lines
3.6 KiB
C
Raw Normal View History

2010-01-25 16:15:01 +00:00
/*
2010-03-16 09:18:57 +00:00
* gstvaapiutils.c - VA-API utilities
2010-01-25 16:15:01 +00:00
*
* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
2010-03-16 09:15:48 +00:00
#include "gstvaapiutils.h"
#include "gstvaapisurface.h"
2010-01-25 16:15:01 +00:00
#include <stdio.h>
#include <stdarg.h>
/* Debug output */
void vaapi_dprintf(const char *format, ...)
{
va_list args;
va_start(args, format);
fprintf(stdout, "[GstVaapi] ");
vfprintf(stdout, format, args);
va_end(args);
}
/* Check VA status for success or print out an error */
int vaapi_check_status(VAStatus status, const char *msg)
{
if (status != VA_STATUS_SUCCESS) {
vaapi_dprintf("%s: %s\n", msg, vaErrorStr(status));
return 0;
}
return 1;
}
/* Return a string representation of a FOURCC */
const char *string_of_FOURCC(guint32 fourcc)
{
static int buf;
static char str[2][5]; // XXX: 2 buffers should be enough for most purposes
buf ^= 1;
str[buf][0] = fourcc;
str[buf][1] = fourcc >> 8;
str[buf][2] = fourcc >> 16;
str[buf][3] = fourcc >> 24;
str[buf][4] = '\0';
return str[buf];
}
/* Return a string representation of a VAProfile */
const char *string_of_VAProfile(VAProfile profile)
{
switch (profile) {
#define PROFILE(profile) \
case VAProfile##profile: return "VAProfile" #profile
PROFILE(MPEG2Simple);
PROFILE(MPEG2Main);
PROFILE(MPEG4Simple);
PROFILE(MPEG4AdvancedSimple);
PROFILE(MPEG4Main);
PROFILE(H264Baseline);
PROFILE(H264Main);
PROFILE(H264High);
PROFILE(VC1Simple);
PROFILE(VC1Main);
PROFILE(VC1Advanced);
#undef PROFILE
default: break;
}
return "<unknown>";
}
/* Return a string representation of a VAEntrypoint */
const char *string_of_VAEntrypoint(VAEntrypoint entrypoint)
{
switch (entrypoint) {
#define ENTRYPOINT(entrypoint) \
case VAEntrypoint##entrypoint: return "VAEntrypoint" #entrypoint
ENTRYPOINT(VLD);
ENTRYPOINT(IZZ);
ENTRYPOINT(IDCT);
ENTRYPOINT(MoComp);
ENTRYPOINT(Deblocking);
#undef ENTRYPOINT
default: break;
}
return "<unknown>";
}
/**
* get_PutSurface_flags_from_GstVaapiSurfaceRenderFlags:
*
* Converts #GstVaapiSurfaceRenderFlags to flags suitable for
* vaPutSurface().
*/
guint get_PutSurface_flags_from_GstVaapiSurfaceRenderFlags(guint flags)
{
const guint va_top_bottom_fields = (VA_TOP_FIELD|VA_BOTTOM_FIELD);
guint va_flags = 0;
if (flags & GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD)
va_flags |= VA_TOP_FIELD;
if (flags & GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD)
va_flags |= VA_BOTTOM_FIELD;
if ((va_flags & va_top_bottom_fields) == va_top_bottom_fields) {
va_flags &= ~va_top_bottom_fields;
va_flags |= VA_FRAME_PICTURE;
}
if (flags & GST_VAAPI_COLOR_STANDARD_ITUR_BT_709)
va_flags |= VA_SRC_BT709;
else if (flags & GST_VAAPI_COLOR_STANDARD_ITUR_BT_601)
va_flags |= VA_SRC_BT601;
return va_flags;
}