lagertonne/yolobs-studio
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Imported Upstream version 0.13.2+dsfg1

Browse source
This commit is contained in:
Sebastian Ramacher 2016-02-24 00:16:51 +01:00
commit fb3990e9e5
2036 changed files with 287360 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

133
libobs/media-io/video-frame.c Normal file
View file

@ -0,0 +1,133 @@
/******************************************************************************
Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#include "video-frame.h"
#define ALIGN_SIZE(size, align) \
size = (((size)+(align-1)) & (~(align-1)))
/* messy code alarm */
void video_frame_init(struct video_frame *frame, enum video_format format,
uint32_t width, uint32_t height)
{
size_t size;
size_t offsets[MAX_AV_PLANES];
int alignment = base_get_alignment();
if (!frame) return;
memset(frame, 0, sizeof(struct video_frame));
memset(offsets, 0, sizeof(offsets));
switch (format) {
case VIDEO_FORMAT_NONE:
return;
case VIDEO_FORMAT_I420:
size = width * height;
ALIGN_SIZE(size, alignment);
offsets[0] = size;
size += (width/2) * (height/2);
ALIGN_SIZE(size, alignment);
offsets[1] = size;
size += (width/2) * (height/2);
ALIGN_SIZE(size, alignment);
frame->data[0] = bmalloc(size);
frame->data[1] = (uint8_t*)frame->data[0] + offsets[0];
frame->data[2] = (uint8_t*)frame->data[0] + offsets[1];
frame->linesize[0] = width;
frame->linesize[1] = width/2;
frame->linesize[2] = width/2;
break;
case VIDEO_FORMAT_NV12:
size = width * height;
ALIGN_SIZE(size, alignment);
offsets[0] = size;
size += (width/2) * (height/2) * 2;
ALIGN_SIZE(size, alignment);
frame->data[0] = bmalloc(size);
frame->data[1] = (uint8_t*)frame->data[0] + offsets[0];
frame->linesize[0] = width;
frame->linesize[1] = width;
break;
case VIDEO_FORMAT_YVYU:
case VIDEO_FORMAT_YUY2:
case VIDEO_FORMAT_UYVY:
size = width * height * 2;
ALIGN_SIZE(size, alignment);
frame->data[0] = bmalloc(size);
frame->linesize[0] = width*2;
break;
case VIDEO_FORMAT_RGBA:
case VIDEO_FORMAT_BGRA:
case VIDEO_FORMAT_BGRX:
size = width * height * 4;
ALIGN_SIZE(size, alignment);
frame->data[0] = bmalloc(size);
frame->linesize[0] = width*4;
break;
case VIDEO_FORMAT_I444:
size = width * height;
ALIGN_SIZE(size, alignment);
frame->data[0] = bmalloc(size * 3);
frame->data[1] = (uint8_t*)frame->data[0] + size;
frame->data[2] = (uint8_t*)frame->data[1] + size;
frame->linesize[0] = width;
frame->linesize[1] = width;
frame->linesize[2] = width;
break;
}
}
void video_frame_copy(struct video_frame *dst, const struct video_frame *src,
enum video_format format, uint32_t cy)
{
switch (format) {
case VIDEO_FORMAT_NONE:
return;
case VIDEO_FORMAT_I420:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
memcpy(dst->data[1], src->data[1], src->linesize[1] * cy / 2);
memcpy(dst->data[2], src->data[2], src->linesize[2] * cy / 2);
break;
case VIDEO_FORMAT_NV12:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
memcpy(dst->data[1], src->data[1], src->linesize[1] * cy / 2);
break;
case VIDEO_FORMAT_YVYU:
case VIDEO_FORMAT_YUY2:
case VIDEO_FORMAT_UYVY:
case VIDEO_FORMAT_RGBA:
case VIDEO_FORMAT_BGRA:
case VIDEO_FORMAT_BGRX:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
break;
case VIDEO_FORMAT_I444:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
memcpy(dst->data[1], src->data[1], src->linesize[1] * cy);
memcpy(dst->data[2], src->data[2], src->linesize[2] * cy);
break;
}
}