mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-09-10 17:41:09 +02:00
![Kieran Kunhya](/assets/img/avatar_default.png)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
234 lines
7.1 KiB
C
234 lines
7.1 KiB
C
/*
|
|
* V210 encoder
|
|
*
|
|
* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
|
|
* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "avcodec.h"
|
|
#include "bytestream.h"
|
|
#include "internal.h"
|
|
#include "v210enc.h"
|
|
|
|
#define CLIP(v) av_clip(v, 4, 1019)
|
|
#define CLIP8(v) av_clip(v, 1, 254)
|
|
|
|
#define WRITE_PIXELS(a, b, c) \
|
|
do { \
|
|
val = CLIP(*a++); \
|
|
val |= (CLIP(*b++) << 10) | \
|
|
(CLIP(*c++) << 20); \
|
|
AV_WL32(dst, val); \
|
|
dst += 4; \
|
|
} while (0)
|
|
|
|
#define WRITE_PIXELS8(a, b, c) \
|
|
do { \
|
|
val = (CLIP8(*a++) << 2); \
|
|
val |= (CLIP8(*b++) << 12) | \
|
|
(CLIP8(*c++) << 22); \
|
|
AV_WL32(dst, val); \
|
|
dst += 4; \
|
|
} while (0)
|
|
|
|
static void v210_planar_pack_8_c(const uint8_t *y, const uint8_t *u,
|
|
const uint8_t *v, uint8_t *dst,
|
|
ptrdiff_t width)
|
|
{
|
|
uint32_t val;
|
|
int i;
|
|
|
|
/* unroll this to match the assembly */
|
|
for (i = 0; i < width - 11; i += 12) {
|
|
WRITE_PIXELS8(u, y, v);
|
|
WRITE_PIXELS8(y, u, y);
|
|
WRITE_PIXELS8(v, y, u);
|
|
WRITE_PIXELS8(y, v, y);
|
|
WRITE_PIXELS8(u, y, v);
|
|
WRITE_PIXELS8(y, u, y);
|
|
WRITE_PIXELS8(v, y, u);
|
|
WRITE_PIXELS8(y, v, y);
|
|
}
|
|
}
|
|
|
|
static void v210_planar_pack_10_c(const uint16_t *y, const uint16_t *u,
|
|
const uint16_t *v, uint8_t *dst,
|
|
ptrdiff_t width)
|
|
{
|
|
uint32_t val;
|
|
int i;
|
|
|
|
for (i = 0; i < width - 5; i += 6) {
|
|
WRITE_PIXELS(u, y, v);
|
|
WRITE_PIXELS(y, u, y);
|
|
WRITE_PIXELS(v, y, u);
|
|
WRITE_PIXELS(y, v, y);
|
|
}
|
|
}
|
|
|
|
static av_cold int encode_init(AVCodecContext *avctx)
|
|
{
|
|
V210EncContext *s = avctx->priv_data;
|
|
|
|
if (avctx->width & 1) {
|
|
av_log(avctx, AV_LOG_ERROR, "v210 needs even width\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
avctx->coded_frame = av_frame_alloc();
|
|
if (!avctx->coded_frame)
|
|
return AVERROR(ENOMEM);
|
|
|
|
avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
|
|
|
|
s->pack_line_8 = v210_planar_pack_8_c;
|
|
s->pack_line_10 = v210_planar_pack_10_c;
|
|
|
|
if (ARCH_X86)
|
|
ff_v210enc_init_x86(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
|
const AVFrame *pic, int *got_packet)
|
|
{
|
|
V210EncContext *s = avctx->priv_data;
|
|
int aligned_width = ((avctx->width + 47) / 48) * 48;
|
|
int stride = aligned_width * 8 / 3;
|
|
int line_padding = stride - ((avctx->width * 8 + 11) / 12) * 4;
|
|
int h, w, ret;
|
|
uint8_t *dst;
|
|
|
|
ret = ff_alloc_packet(pkt, avctx->height * stride);
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
|
|
return ret;
|
|
}
|
|
dst = pkt->data;
|
|
|
|
if (pic->format == AV_PIX_FMT_YUV422P10) {
|
|
const uint16_t *y = (const uint16_t *)pic->data[0];
|
|
const uint16_t *u = (const uint16_t *)pic->data[1];
|
|
const uint16_t *v = (const uint16_t *)pic->data[2];
|
|
for (h = 0; h < avctx->height; h++) {
|
|
uint32_t val;
|
|
w = (avctx->width / 6) * 6;
|
|
s->pack_line_10(y, u, v, dst, w);
|
|
|
|
y += w;
|
|
u += w >> 1;
|
|
v += w >> 1;
|
|
dst += (w / 6) * 16;
|
|
if (w < avctx->width - 1) {
|
|
WRITE_PIXELS(u, y, v);
|
|
|
|
val = CLIP(*y++);
|
|
if (w == avctx->width - 2) {
|
|
AV_WL32(dst, val);
|
|
dst += 4;
|
|
}
|
|
}
|
|
if (w < avctx->width - 3) {
|
|
val |= (CLIP(*u++) << 10) | (CLIP(*y++) << 20);
|
|
AV_WL32(dst, val);
|
|
dst += 4;
|
|
|
|
val = CLIP(*v++) | (CLIP(*y++) << 10);
|
|
AV_WL32(dst, val);
|
|
dst += 4;
|
|
}
|
|
|
|
memset(dst, 0, line_padding);
|
|
dst += line_padding;
|
|
y += pic->linesize[0] / 2 - avctx->width;
|
|
u += pic->linesize[1] / 2 - avctx->width / 2;
|
|
v += pic->linesize[2] / 2 - avctx->width / 2;
|
|
}
|
|
} else if(pic->format == AV_PIX_FMT_YUV422P) {
|
|
const uint8_t *y = pic->data[0];
|
|
const uint8_t *u = pic->data[1];
|
|
const uint8_t *v = pic->data[2];
|
|
for (h = 0; h < avctx->height; h++) {
|
|
uint32_t val;
|
|
w = (avctx->width / 12) * 12;
|
|
s->pack_line_8(y, u, v, dst, w);
|
|
|
|
y += w;
|
|
u += w >> 1;
|
|
v += w >> 1;
|
|
dst += (w / 12) * 32;
|
|
|
|
for (; w < avctx->width - 5; w += 6) {
|
|
WRITE_PIXELS8(u, y, v);
|
|
WRITE_PIXELS8(y, u, y);
|
|
WRITE_PIXELS8(v, y, u);
|
|
WRITE_PIXELS8(y, v, y);
|
|
}
|
|
if (w < avctx->width - 1) {
|
|
WRITE_PIXELS8(u, y, v);
|
|
|
|
val = CLIP8(*y++) << 2;
|
|
if (w == avctx->width - 2) {
|
|
AV_WL32(dst, val);
|
|
dst += 4;
|
|
}
|
|
}
|
|
if (w < avctx->width - 3) {
|
|
val |= (CLIP8(*u++) << 12) | (CLIP8(*y++) << 22);
|
|
AV_WL32(dst, val);
|
|
dst += 4;
|
|
|
|
val = (CLIP8(*v++) << 2) | (CLIP8(*y++) << 12);
|
|
AV_WL32(dst, val);
|
|
dst += 4;
|
|
}
|
|
memset(dst, 0, line_padding);
|
|
dst += line_padding;
|
|
|
|
y += pic->linesize[0] - avctx->width;
|
|
u += pic->linesize[1] - avctx->width / 2;
|
|
v += pic->linesize[2] - avctx->width / 2;
|
|
}
|
|
}
|
|
|
|
pkt->flags |= AV_PKT_FLAG_KEY;
|
|
*got_packet = 1;
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int encode_close(AVCodecContext *avctx)
|
|
{
|
|
av_freep(&avctx->coded_frame);
|
|
|
|
return 0;
|
|
}
|
|
|
|
AVCodec ff_v210_encoder = {
|
|
.name = "v210",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_V210,
|
|
.priv_data_size = sizeof(V210EncContext),
|
|
.init = encode_init,
|
|
.encode2 = encode_frame,
|
|
.close = encode_close,
|
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P, AV_PIX_FMT_NONE },
|
|
};
|