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FFmpeg/libavfilter/vf_uspp.c
Andreas Rheinhardt 790f793844 avutil/common: Don't auto-include mem.h 
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00

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/*
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.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 General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
/**
* @file
* Ultra Slow/Simple Post-processing filter.
*
* Originally written by Michael Niedermayer for the MPlayer project, and
* ported by Arwa Arif for FFmpeg.
*/
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/mem_internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/video_enc_params.h"
#include "libavcodec/avcodec.h"
#include "internal.h"
#include "qp_table.h"
#include "avfilter.h"
#include "video.h"
#define MAX_LEVEL 8 /* quality levels */
#define BLOCK 16
typedef struct USPPContext {
const AVClass *av_class;
int log2_count;
int count;
int hsub, vsub;
int qp;
char *codec_name;
enum AVVideoEncParamsType qscale_type;
int temp_stride[3];
uint8_t *src[3];
uint16_t *temp[3];
int outbuf_size;
uint8_t *outbuf;
AVCodecContext *avctx_enc[BLOCK*BLOCK];
AVCodecContext *avctx_dec[BLOCK*BLOCK];
AVPacket *pkt [BLOCK*BLOCK];
AVFrame *frame [BLOCK*BLOCK];
AVFrame *frame_dec [BLOCK*BLOCK];
int8_t *non_b_qp_table;
int non_b_qp_stride;
int use_bframe_qp;
int quality;
} USPPContext;
#define OFFSET(x) offsetof(USPPContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption uspp_options[] = {
{ "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
{ "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
{ "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
{ "codec", "Codec name", OFFSET(codec_name), AV_OPT_TYPE_STRING, {.str = "snow"}, 0, 0, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(uspp);
DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
{ 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
{ 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
{ 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
{ 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
{ 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
{ 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
{ 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
{ 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
};
static const uint8_t offset[511][2] = {
{ 0, 0},
{ 0, 0}, { 8, 8}, // quality 1
{ 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
{ 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
{ 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
{ 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
{ 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
{ 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
{ 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
{ 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
{ 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
{ 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
{ 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
{ 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
{ 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
{ 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
{ 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
{ 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
{ 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
{ 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
{ 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
{ 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
{ 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
{ 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
{ 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
{ 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
{ 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
{ 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
{ 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
{ 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
{ 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
{ 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
{ 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
{ 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
{ 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
{ 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
{ 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
{ 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
{ 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
{ 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
{ 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
{ 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
{ 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
{ 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
{ 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
{ 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
{ 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
{ 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
{ 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
{ 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
{ 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
{ 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
{ 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
{ 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
{ 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
{ 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
{ 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
{ 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
{ 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
{ 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
{ 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
{ 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
{ 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
{ 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
{ 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
{ 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
};
static void store_slice_c(uint8_t *dst, const uint16_t *src,
int dst_stride, int src_stride,
int width, int height, int log2_scale)
{
int y, x;
#define STORE(pos) do { \
temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
if (temp & 0x100) temp = ~(temp >> 31); \
dst[x + y * dst_stride + pos] = temp; \
} while (0)
for (y = 0; y < height; y++) {
const uint8_t *d = dither[y&7];
for (x = 0; x < width; x += 8) {
int temp;
STORE(0);
STORE(1);
STORE(2);
STORE(3);
STORE(4);
STORE(5);
STORE(6);
STORE(7);
}
}
}
static int filter_1phase(AVFilterContext *ctx, void *arg, int i, int nb_jobs)
{
USPPContext *p = ctx->priv;
int ret, x, y;
int width = ctx->inputs[0]->w;
int height = ctx->inputs[0]->h;
const int x1 = offset[i+nb_jobs-1][0];
const int y1 = offset[i+nb_jobs-1][1];
const int x1c = x1 >> p->hsub;
const int y1c = y1 >> p->vsub;
const int BLOCKc = BLOCK >> p->hsub;
int offset;
AVPacket *pkt = p->pkt[i];
av_packet_unref(pkt);
pkt->data = p->outbuf;
pkt->size = p->outbuf_size;
p->frame[i]->linesize[0] = p->temp_stride[0];
p->frame[i]->linesize[1] = p->temp_stride[1];
p->frame[i]->linesize[2] = p->temp_stride[2];
p->frame[i]->height = height + BLOCK;
p->frame[i]->width = width + BLOCK;
p->frame[i]->data[0] = p->src[0] + x1 + y1 * p->frame[i]->linesize[0];
p->frame[i]->data[1] = p->src[1] + x1c + y1c * p->frame[i]->linesize[1];
p->frame[i]->data[2] = p->src[2] + x1c + y1c * p->frame[i]->linesize[2];
p->frame[i]->format = p->avctx_enc[i]->pix_fmt;
p->frame[i]->quality = p->quality;
ret = avcodec_send_frame(p->avctx_enc[i], p->frame[i]);
if (ret < 0) {
av_log(p->avctx_enc[i], AV_LOG_ERROR, "Error sending a frame for encoding\n");
return ret;
}
ret = avcodec_receive_packet(p->avctx_enc[i], pkt);
if (ret < 0) {
av_log(p->avctx_enc[i], AV_LOG_ERROR, "Error receiving a packet from encoding\n");
return ret;
}
if (p->avctx_enc[i]->flags & AV_CODEC_FLAG_RECON_FRAME) {
av_packet_unref(pkt);
ret = avcodec_receive_frame(p->avctx_enc[i], p->frame_dec[i]);
if (ret < 0) {
av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error receiving a frame from encoding\n");
return ret;
}
} else {
ret = avcodec_send_packet(p->avctx_dec[i], pkt);
av_packet_unref(pkt);
if (ret < 0) {
av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error sending a packet for decoding\n");
return ret;
}
ret = avcodec_receive_frame(p->avctx_dec[i], p->frame_dec[i]);
if (ret < 0) {
av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error receiving a frame from decoding\n");
return ret;
}
}
offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec[i]->linesize[0];
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec[i]->data[0][x + y * p->frame_dec[i]->linesize[0] + offset];
if (!p->frame_dec[i]->data[2] || !p->temp[2])
return 0;
offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec[i]->linesize[1];
for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec[i]->data[1][x + y * p->frame_dec[i]->linesize[1] + offset];
p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec[i]->data[2][x + y * p->frame_dec[i]->linesize[2] + offset];
}
}
return 0;
}
static void filter(AVFilterContext *ctx, uint8_t *dst[3], uint8_t *src[3],
int dst_stride[3], int src_stride[3], int width,
int height, uint8_t *qp_store, int qp_stride)
{
USPPContext *p = ctx->priv;
int x, y, i, j;
for (i = 0; i < 3; i++) {
int is_chroma = !!i;
int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
int stride = p->temp_stride[i];
int block = BLOCK >> (is_chroma ? p->hsub : 0);
if (!src[i] || !dst[i])
continue;
for (y = 0; y < h; y++) {
int index = block + block * stride + y * stride;
memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
for (x = 0; x < block; x++) {
p->src[i][index - x - 1] = p->src[i][index + x ];
p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
}
}
for (y = 0; y < block; y++) {
memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
}
memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
}
if (p->qp)
p->quality = p->qp * FF_QP2LAMBDA;
else {
int qpsum=0;
int qpcount = (height>>4) * (height>>4);
for (y = 0; y < (height>>4); y++) {
for (x = 0; x < (width>>4); x++)
qpsum += qp_store[x + y * qp_stride];
}
p->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
}
// init per MB qscale stuff FIXME
ff_filter_execute(ctx, filter_1phase, NULL, NULL, p->count);
for (j = 0; j < 3; j++) {
int is_chroma = !!j;
if (!dst[j])
continue;
store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
8-p->log2_count);
}
}
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUV410P,
AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_NONE
};
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
USPPContext *uspp = ctx->priv;
const int height = inlink->h;
const int width = inlink->w;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
int i;
const AVCodec *enc = avcodec_find_encoder_by_name(uspp->codec_name);
const AVCodec *dec = avcodec_find_decoder_by_name(uspp->codec_name);
if (!enc) {
av_log(ctx, AV_LOG_ERROR, "encoder %s not found.\n", uspp->codec_name);
return AVERROR(EINVAL);
}
if (!dec) {
av_log(ctx, AV_LOG_ERROR, "decoder %s not found.\n", uspp->codec_name);
return AVERROR(EINVAL);
}
uspp->hsub = desc->log2_chroma_w;
uspp->vsub = desc->log2_chroma_h;
uspp->count = 1<<uspp->log2_count;
for (i = 0; i < 3; i++) {
int is_chroma = !!i;
int w = (width + 4 * BLOCK-1) & (~(2 * BLOCK-1));
int h = (height + 4 * BLOCK-1) & (~(2 * BLOCK-1));
if (is_chroma) {
w = AV_CEIL_RSHIFT(w, uspp->hsub);
h = AV_CEIL_RSHIFT(h, uspp->vsub);
}
uspp->temp_stride[i] = w;
if (!(uspp->temp[i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(int16_t))))
return AVERROR(ENOMEM);
if (!(uspp->src [i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(uint8_t))))
return AVERROR(ENOMEM);
}
for (i = 0; i < uspp->count; i++) {
AVCodecContext *avctx_enc, *avctx_dec;
AVDictionary *opts = NULL;
int ret;
if (!(uspp->avctx_enc[i] = avcodec_alloc_context3(NULL)))
return AVERROR(ENOMEM);
avctx_enc = uspp->avctx_enc[i];
avctx_enc->width = width + BLOCK;
avctx_enc->height = height + BLOCK;
avctx_enc->time_base = (AVRational){1,25}; // meaningless
avctx_enc->gop_size = INT_MAX;
avctx_enc->max_b_frames = 0;
avctx_enc->pix_fmt = inlink->format;
avctx_enc->flags = AV_CODEC_FLAG_QSCALE | AV_CODEC_FLAG_LOW_DELAY;
if (enc->capabilities & AV_CODEC_CAP_ENCODER_RECON_FRAME) {
avctx_enc->flags |= AV_CODEC_FLAG_RECON_FRAME;
av_dict_set(&opts, "no_bitstream", "1", 0);
}
avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
avctx_enc->global_quality = 123;
avctx_enc->thread_count = 1; // We do threading in the filter with muiltiple codecs
ret = avcodec_open2(avctx_enc, enc, &opts);
av_dict_free(&opts);
if (ret < 0)
return ret;
av_assert0(avctx_enc->codec);
if (!(enc->capabilities & AV_CODEC_CAP_ENCODER_RECON_FRAME)) {
if (!(uspp->avctx_dec[i] = avcodec_alloc_context3(NULL)))
return AVERROR(ENOMEM);
avctx_dec = uspp->avctx_dec[i];
avctx_dec->width = avctx_enc->width;
avctx_dec->height = avctx_enc->height;
avctx_dec->thread_count = 1;
ret = avcodec_open2(avctx_dec, dec, NULL);
if (ret < 0)
return ret;
}
if (!(uspp->frame[i] = av_frame_alloc()))
return AVERROR(ENOMEM);
if (!(uspp->frame_dec[i] = av_frame_alloc()))
return AVERROR(ENOMEM);
if (!(uspp->pkt[i] = av_packet_alloc()))
return AVERROR(ENOMEM);
}
uspp->outbuf_size = (width + BLOCK) * (height + BLOCK) * 10;
if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
return AVERROR(ENOMEM);
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
USPPContext *uspp = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out = in;
int qp_stride = 0;
int8_t *qp_table = NULL;
int ret = 0;
/* if we are not in a constant user quantizer mode and we don't want to use
* the quantizers from the B-frames (B-frames often have a higher QP), we
* need to save the qp table from the last non B-frame; this is what the
* following code block does */
if (!uspp->qp && (uspp->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &uspp->qscale_type);
if (ret < 0) {
av_frame_free(&in);
return ret;
}
if (!uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
av_freep(&uspp->non_b_qp_table);
uspp->non_b_qp_table = qp_table;
uspp->non_b_qp_stride = qp_stride;
}
}
if (uspp->log2_count && !ctx->is_disabled) {
if (!uspp->use_bframe_qp && uspp->non_b_qp_table) {
qp_table = uspp->non_b_qp_table;
qp_stride = uspp->non_b_qp_stride;
}
if (qp_table || uspp->qp) {
/* get a new frame if in-place is not possible or if the dimensions
* are not multiple of 8 */
if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
const int aligned_w = FFALIGN(inlink->w, 8);
const int aligned_h = FFALIGN(inlink->h, 8);
out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
if (!out) {
av_frame_free(&in);
if (qp_table != uspp->non_b_qp_table)
av_free(qp_table);
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
out->width = in->width;
out->height = in->height;
}
filter(ctx, out->data, in->data, out->linesize, in->linesize,
inlink->w, inlink->h, qp_table, qp_stride);
}
}
if (in != out) {
if (in->data[3])
av_image_copy_plane(out->data[3], out->linesize[3],
in ->data[3], in ->linesize[3],
inlink->w, inlink->h);
av_frame_free(&in);
}
ret = ff_filter_frame(outlink, out);
if (qp_table != uspp->non_b_qp_table)
av_freep(&qp_table);
return ret;
}
static av_cold void uninit(AVFilterContext *ctx)
{
USPPContext *uspp = ctx->priv;
int i;
for (i = 0; i < 3; i++) {
av_freep(&uspp->temp[i]);
av_freep(&uspp->src[i]);
}
for (i = 0; i < uspp->count; i++) {
avcodec_free_context(&uspp->avctx_enc[i]);
avcodec_free_context(&uspp->avctx_dec[i]);
av_frame_free(&uspp->frame[i]);
av_frame_free(&uspp->frame_dec[i]);
av_packet_free(&uspp->pkt[i]);
}
av_freep(&uspp->non_b_qp_table);
av_freep(&uspp->outbuf);
}
static const AVFilterPad uspp_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
.filter_frame = filter_frame,
},
};
const AVFilter ff_vf_uspp = {
.name = "uspp",
.description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
.priv_size = sizeof(USPPContext),
.uninit = uninit,
FILTER_INPUTS(uspp_inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_PIXFMTS_ARRAY(pix_fmts),
.priv_class = &uspp_class,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
};
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