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FFmpeg/libavcodec/v210enc.c
Devin Heitmueller fb9d4f5c3e avcodec/v210enc: Pass through Active Format Description (AFD) data 
When encoding to V210, make sure the AFD side data makes it through
in the resulting AVPacket.  This is needed so the decklink output
module can put out AFD when in 10-bit mode.

Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
2018-09-09 22:42:26 +02:00

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/*
* 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 FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; 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);
}
}
av_cold void ff_v210enc_init(V210EncContext *s)
{
s->pack_line_8 = v210_planar_pack_8_c;
s->pack_line_10 = v210_planar_pack_10_c;
s->sample_factor_8 = 1;
s->sample_factor_10 = 1;
if (ARCH_X86)
ff_v210enc_init_x86(s);
}
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);
}
#if FF_API_CODED_FRAME
FF_DISABLE_DEPRECATION_WARNINGS
avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
ff_v210enc_init(s);
avctx->bits_per_coded_sample = 20;
avctx->bit_rate = ff_guess_coded_bitrate(avctx) * 16 / 15;
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;
AVFrameSideData *side_data;
int h, w, ret;
uint8_t *dst;
ret = ff_alloc_packet2(avctx, pkt, avctx->height * stride, 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];
const int sample_size = 6 * s->sample_factor_10;
const int sample_w = avctx->width / sample_size;
for (h = 0; h < avctx->height; h++) {
uint32_t val;
w = sample_w * sample_size;
s->pack_line_10(y, u, v, dst, w);
y += w;
u += w >> 1;
v += w >> 1;
dst += sample_w * 16 * s->sample_factor_10;
for (; w < avctx->width - 5; w += 6) {
WRITE_PIXELS(u, y, v);
WRITE_PIXELS(y, u, y);
WRITE_PIXELS(v, y, u);
WRITE_PIXELS(y, v, y);
}
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];
const int sample_size = 12 * s->sample_factor_8;
const int sample_w = avctx->width / sample_size;
for (h = 0; h < avctx->height; h++) {
uint32_t val;
w = sample_w * sample_size;
s->pack_line_8(y, u, v, dst, w);
y += w;
u += w >> 1;
v += w >> 1;
dst += sample_w * 32 * s->sample_factor_8;
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;
}
}
side_data = av_frame_get_side_data(pic, AV_FRAME_DATA_A53_CC);
if (side_data && side_data->size) {
uint8_t *buf = av_packet_new_side_data(pkt, AV_PKT_DATA_A53_CC, side_data->size);
if (!buf)
return AVERROR(ENOMEM);
memcpy(buf, side_data->data, side_data->size);
}
side_data = av_frame_get_side_data(pic, AV_FRAME_DATA_AFD);
if (side_data && side_data->size) {
uint8_t *buf = av_packet_new_side_data(pkt, AV_PKT_DATA_AFD, side_data->size);
if (!buf)
return AVERROR(ENOMEM);
memcpy(buf, side_data->data, side_data->size);
}
pkt->flags |= AV_PKT_FLAG_KEY;
*got_packet = 1;
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,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P, AV_PIX_FMT_NONE },
};
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