367 lines
11 KiB
C
367 lines
11 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#include "video-frame.h"
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#define ALIGN_SIZE(size, align) size = (((size) + (align - 1)) & (~(align - 1)))
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/* messy code alarm */
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void video_frame_init(struct video_frame *frame, enum video_format format,
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uint32_t width, uint32_t height)
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{
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size_t size;
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size_t offsets[MAX_AV_PLANES];
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int alignment = base_get_alignment();
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if (!frame)
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return;
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memset(frame, 0, sizeof(struct video_frame));
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memset(offsets, 0, sizeof(offsets));
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switch (format) {
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case VIDEO_FORMAT_NONE:
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return;
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case VIDEO_FORMAT_I420: {
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size = width * height;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t half_width = (width + 1) / 2;
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const uint32_t half_height = (height + 1) / 2;
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const uint32_t quarter_area = half_width * half_height;
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size += quarter_area;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += quarter_area;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->linesize[0] = width;
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frame->linesize[1] = half_width;
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frame->linesize[2] = half_width;
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break;
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}
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case VIDEO_FORMAT_NV12: {
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size = width * height;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t cbcr_width = (width + 1) & (UINT32_MAX - 1);
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size += cbcr_width * ((height + 1) / 2);
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->linesize[0] = width;
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frame->linesize[1] = cbcr_width;
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break;
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}
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case VIDEO_FORMAT_Y800:
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size = width * height;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->linesize[0] = width;
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break;
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case VIDEO_FORMAT_YVYU:
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case VIDEO_FORMAT_YUY2:
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case VIDEO_FORMAT_UYVY: {
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const uint32_t double_width =
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((width + 1) & (UINT32_MAX - 1)) * 2;
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size = double_width * height;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->linesize[0] = double_width;
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break;
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}
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case VIDEO_FORMAT_RGBA:
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case VIDEO_FORMAT_BGRA:
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case VIDEO_FORMAT_BGRX:
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case VIDEO_FORMAT_AYUV:
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size = width * height * 4;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->linesize[0] = width * 4;
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break;
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case VIDEO_FORMAT_I444:
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size = width * height;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size * 3);
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frame->data[1] = (uint8_t *)frame->data[0] + size;
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frame->data[2] = (uint8_t *)frame->data[1] + size;
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frame->linesize[0] = width;
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frame->linesize[1] = width;
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frame->linesize[2] = width;
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break;
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case VIDEO_FORMAT_I412:
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size = width * height * 2;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size * 3);
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frame->data[1] = (uint8_t *)frame->data[0] + size;
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frame->data[2] = (uint8_t *)frame->data[1] + size;
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frame->linesize[0] = width * 2;
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frame->linesize[1] = width * 2;
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frame->linesize[2] = width * 2;
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break;
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case VIDEO_FORMAT_BGR3:
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size = width * height * 3;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->linesize[0] = width * 3;
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break;
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case VIDEO_FORMAT_I422: {
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size = width * height;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t half_width = (width + 1) / 2;
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const uint32_t half_area = half_width * height;
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size += half_area;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += half_area;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->linesize[0] = width;
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frame->linesize[1] = half_width;
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frame->linesize[2] = half_width;
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break;
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}
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case VIDEO_FORMAT_I210: {
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size = width * height * 2;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t half_width = (width + 1) / 2;
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const uint32_t half_area = half_width * height;
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const uint32_t half_area_size = 2 * half_area;
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size += half_area_size;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += half_area_size;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->linesize[0] = width * 2;
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frame->linesize[1] = half_width * 2;
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frame->linesize[2] = half_width * 2;
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break;
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}
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case VIDEO_FORMAT_I40A: {
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size = width * height;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t half_width = (width + 1) / 2;
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const uint32_t half_height = (height + 1) / 2;
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const uint32_t quarter_area = half_width * half_height;
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size += quarter_area;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += quarter_area;
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ALIGN_SIZE(size, alignment);
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offsets[2] = size;
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size += width * height;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->data[3] = (uint8_t *)frame->data[0] + offsets[2];
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frame->linesize[0] = width;
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frame->linesize[1] = half_width;
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frame->linesize[2] = half_width;
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frame->linesize[3] = width;
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break;
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}
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case VIDEO_FORMAT_I42A: {
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size = width * height;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t half_width = (width + 1) / 2;
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const uint32_t half_area = half_width * height;
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size += half_area;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += half_area;
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ALIGN_SIZE(size, alignment);
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offsets[2] = size;
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size += width * height;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->data[3] = (uint8_t *)frame->data[0] + offsets[2];
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frame->linesize[0] = width;
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frame->linesize[1] = half_width;
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frame->linesize[2] = half_width;
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frame->linesize[3] = width;
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break;
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}
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case VIDEO_FORMAT_YUVA:
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size = width * height;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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size += width * height;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += width * height;
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ALIGN_SIZE(size, alignment);
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offsets[2] = size;
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size += width * height;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->data[3] = (uint8_t *)frame->data[0] + offsets[2];
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frame->linesize[0] = width;
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frame->linesize[1] = width;
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frame->linesize[2] = width;
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frame->linesize[3] = width;
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break;
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case VIDEO_FORMAT_YA2L: {
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const uint32_t linesize = width * 2;
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const uint32_t plane_size = linesize * height;
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size = plane_size;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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size += plane_size;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += plane_size;
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ALIGN_SIZE(size, alignment);
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offsets[2] = size;
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size += plane_size;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->data[3] = (uint8_t *)frame->data[0] + offsets[2];
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frame->linesize[0] = linesize;
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frame->linesize[1] = linesize;
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frame->linesize[2] = linesize;
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frame->linesize[3] = linesize;
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break;
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}
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case VIDEO_FORMAT_I010: {
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size = width * height * 2;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t half_width = (width + 1) / 2;
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const uint32_t half_height = (height + 1) / 2;
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const uint32_t quarter_area = half_width * half_height;
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size += quarter_area * 2;
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ALIGN_SIZE(size, alignment);
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offsets[1] = size;
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size += quarter_area * 2;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
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frame->linesize[0] = width * 2;
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frame->linesize[1] = half_width * 2;
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frame->linesize[2] = half_width * 2;
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break;
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}
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case VIDEO_FORMAT_P010: {
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size = width * height * 2;
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ALIGN_SIZE(size, alignment);
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offsets[0] = size;
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const uint32_t cbcr_width = (width + 1) & (UINT32_MAX - 1);
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size += cbcr_width * ((height + 1) / 2) * 2;
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ALIGN_SIZE(size, alignment);
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frame->data[0] = bmalloc(size);
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frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
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frame->linesize[0] = width * 2;
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frame->linesize[1] = cbcr_width * 2;
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break;
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}
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}
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}
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void video_frame_copy(struct video_frame *dst, const struct video_frame *src,
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enum video_format format, uint32_t cy)
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{
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switch (format) {
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case VIDEO_FORMAT_NONE:
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return;
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case VIDEO_FORMAT_I420:
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case VIDEO_FORMAT_I010:
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memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
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memcpy(dst->data[1], src->data[1], src->linesize[1] * cy / 2);
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memcpy(dst->data[2], src->data[2], src->linesize[2] * cy / 2);
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break;
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case VIDEO_FORMAT_NV12:
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case VIDEO_FORMAT_P010:
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memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
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memcpy(dst->data[1], src->data[1], src->linesize[1] * cy / 2);
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break;
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case VIDEO_FORMAT_Y800:
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case VIDEO_FORMAT_YVYU:
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case VIDEO_FORMAT_YUY2:
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case VIDEO_FORMAT_UYVY:
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case VIDEO_FORMAT_RGBA:
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case VIDEO_FORMAT_BGRA:
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case VIDEO_FORMAT_BGRX:
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case VIDEO_FORMAT_BGR3:
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case VIDEO_FORMAT_AYUV:
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memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
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break;
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case VIDEO_FORMAT_I444:
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case VIDEO_FORMAT_I422:
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case VIDEO_FORMAT_I210:
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case VIDEO_FORMAT_I412:
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memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
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memcpy(dst->data[1], src->data[1], src->linesize[1] * cy);
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memcpy(dst->data[2], src->data[2], src->linesize[2] * cy);
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break;
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case VIDEO_FORMAT_I40A:
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memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
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memcpy(dst->data[1], src->data[1], src->linesize[1] * cy / 2);
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memcpy(dst->data[2], src->data[2], src->linesize[2] * cy / 2);
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memcpy(dst->data[3], src->data[3], src->linesize[3] * cy);
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break;
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case VIDEO_FORMAT_I42A:
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case VIDEO_FORMAT_YUVA:
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case VIDEO_FORMAT_YA2L:
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memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
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memcpy(dst->data[1], src->data[1], src->linesize[1] * cy);
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memcpy(dst->data[2], src->data[2], src->linesize[2] * cy);
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memcpy(dst->data[3], src->data[3], src->linesize[3] * cy);
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break;
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}
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}
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