mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 01:42:20 +00:00
1d66a122df
It used to be used with preallocated packet buffers with the old encode API, but said API is no more and therefore there is no reason for this to be public any more. So deprecate it and use an internal replacement for the encoders using it as an upper bound for the size of their headers. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
387 lines
12 KiB
C
387 lines
12 KiB
C
/*
|
|
* Copyright (c) 2003 Michael Niedermayer
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* ASUS V1/V2 encoder.
|
|
*/
|
|
|
|
#include "config_components.h"
|
|
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/mem.h"
|
|
#include "libavutil/mem_internal.h"
|
|
|
|
#include "aandcttab.h"
|
|
#include "asv.h"
|
|
#include "avcodec.h"
|
|
#include "codec_internal.h"
|
|
#include "encode.h"
|
|
#include "fdctdsp.h"
|
|
#include "mpeg12data.h"
|
|
#include "pixblockdsp.h"
|
|
#include "put_bits.h"
|
|
|
|
typedef struct ASVEncContext {
|
|
ASVCommonContext c;
|
|
|
|
PutBitContext pb;
|
|
|
|
PixblockDSPContext pdsp;
|
|
FDCTDSPContext fdsp;
|
|
DECLARE_ALIGNED(32, int16_t, block)[6][64];
|
|
int q_intra_matrix[64];
|
|
} ASVEncContext;
|
|
|
|
static inline void asv1_put_level(PutBitContext *pb, int level)
|
|
{
|
|
unsigned int index = level + 3;
|
|
|
|
if (index <= 6) {
|
|
put_bits(pb, ff_asv_level_tab[index][1], ff_asv_level_tab[index][0]);
|
|
} else {
|
|
put_bits(pb, 3, 0); /* Escape code */
|
|
put_sbits(pb, 8, level);
|
|
}
|
|
}
|
|
|
|
static inline void asv2_put_level(ASVEncContext *a, PutBitContext *pb, int level)
|
|
{
|
|
unsigned int index = level + 31;
|
|
|
|
if (index <= 62) {
|
|
put_bits_le(pb, ff_asv2_level_tab[index][1], ff_asv2_level_tab[index][0]);
|
|
} else {
|
|
put_bits_le(pb, 5, 0); /* Escape code */
|
|
if (level < -128 || level > 127) {
|
|
av_log(a->c.avctx, AV_LOG_WARNING, "Clipping level %d, increase qscale\n", level);
|
|
level = av_clip_int8(level);
|
|
}
|
|
put_bits_le(pb, 8, level & 0xFF);
|
|
}
|
|
}
|
|
|
|
static inline void asv1_encode_block(ASVEncContext *a, int16_t block[64])
|
|
{
|
|
int i;
|
|
int nc_count = 0;
|
|
|
|
put_bits(&a->pb, 8, (block[0] + 32) >> 6);
|
|
block[0] = 0;
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
const int index = ff_asv_scantab[4 * i];
|
|
int ccp = 0;
|
|
|
|
if ((block[index + 0] = (block[index + 0] *
|
|
a->q_intra_matrix[index + 0] + (1 << 15)) >> 16))
|
|
ccp |= 8;
|
|
if ((block[index + 8] = (block[index + 8] *
|
|
a->q_intra_matrix[index + 8] + (1 << 15)) >> 16))
|
|
ccp |= 4;
|
|
if ((block[index + 1] = (block[index + 1] *
|
|
a->q_intra_matrix[index + 1] + (1 << 15)) >> 16))
|
|
ccp |= 2;
|
|
if ((block[index + 9] = (block[index + 9] *
|
|
a->q_intra_matrix[index + 9] + (1 << 15)) >> 16))
|
|
ccp |= 1;
|
|
|
|
if (ccp) {
|
|
for (; nc_count; nc_count--)
|
|
put_bits(&a->pb, 2, 2); /* Skip */
|
|
|
|
put_bits(&a->pb, ff_asv_ccp_tab[ccp][1], ff_asv_ccp_tab[ccp][0]);
|
|
|
|
if (ccp & 8)
|
|
asv1_put_level(&a->pb, block[index + 0]);
|
|
if (ccp & 4)
|
|
asv1_put_level(&a->pb, block[index + 8]);
|
|
if (ccp & 2)
|
|
asv1_put_level(&a->pb, block[index + 1]);
|
|
if (ccp & 1)
|
|
asv1_put_level(&a->pb, block[index + 9]);
|
|
} else {
|
|
nc_count++;
|
|
}
|
|
}
|
|
put_bits(&a->pb, 5, 0xF); /* End of block */
|
|
}
|
|
|
|
static inline void asv2_encode_block(ASVEncContext *a, int16_t block[64])
|
|
{
|
|
int i;
|
|
int count = 0;
|
|
|
|
for (count = 63; count > 3; count--) {
|
|
const int index = ff_asv_scantab[count];
|
|
if ((block[index] * a->q_intra_matrix[index] + (1 << 15)) >> 16)
|
|
break;
|
|
}
|
|
|
|
count >>= 2;
|
|
|
|
put_bits_le(&a->pb, 4, count);
|
|
put_bits_le(&a->pb, 8, (block[0] + 32) >> 6);
|
|
block[0] = 0;
|
|
|
|
for (i = 0; i <= count; i++) {
|
|
const int index = ff_asv_scantab[4 * i];
|
|
int ccp = 0;
|
|
|
|
if ((block[index + 0] = (block[index + 0] *
|
|
a->q_intra_matrix[index + 0] + (1 << 15)) >> 16))
|
|
ccp |= 8;
|
|
if ((block[index + 8] = (block[index + 8] *
|
|
a->q_intra_matrix[index + 8] + (1 << 15)) >> 16))
|
|
ccp |= 4;
|
|
if ((block[index + 1] = (block[index + 1] *
|
|
a->q_intra_matrix[index + 1] + (1 << 15)) >> 16))
|
|
ccp |= 2;
|
|
if ((block[index + 9] = (block[index + 9] *
|
|
a->q_intra_matrix[index + 9] + (1 << 15)) >> 16))
|
|
ccp |= 1;
|
|
|
|
av_assert2(i || ccp < 8);
|
|
if (i)
|
|
put_bits_le(&a->pb, ff_asv_ac_ccp_tab[ccp][1], ff_asv_ac_ccp_tab[ccp][0]);
|
|
else
|
|
put_bits_le(&a->pb, ff_asv_dc_ccp_tab[ccp][1], ff_asv_dc_ccp_tab[ccp][0]);
|
|
|
|
if (ccp) {
|
|
if (ccp & 8)
|
|
asv2_put_level(a, &a->pb, block[index + 0]);
|
|
if (ccp & 4)
|
|
asv2_put_level(a, &a->pb, block[index + 8]);
|
|
if (ccp & 2)
|
|
asv2_put_level(a, &a->pb, block[index + 1]);
|
|
if (ccp & 1)
|
|
asv2_put_level(a, &a->pb, block[index + 9]);
|
|
}
|
|
}
|
|
}
|
|
|
|
#define MAX_MB_SIZE (30 * 16 * 16 * 3 / 2 / 8)
|
|
|
|
static inline int encode_mb(ASVEncContext *a, int16_t block[6][64])
|
|
{
|
|
int i;
|
|
|
|
av_assert0(put_bytes_left(&a->pb, 0) >= MAX_MB_SIZE);
|
|
|
|
if (a->c.avctx->codec_id == AV_CODEC_ID_ASV1) {
|
|
for (i = 0; i < 6; i++)
|
|
asv1_encode_block(a, block[i]);
|
|
} else {
|
|
for (i = 0; i < 6; i++) {
|
|
asv2_encode_block(a, block[i]);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline void dct_get(ASVEncContext *a, const AVFrame *frame,
|
|
int mb_x, int mb_y)
|
|
{
|
|
int16_t (*block)[64] = a->block;
|
|
int linesize = frame->linesize[0];
|
|
int i;
|
|
|
|
const uint8_t *ptr_y = frame->data[0] + (mb_y * 16 * linesize) + mb_x * 16;
|
|
const uint8_t *ptr_cb = frame->data[1] + (mb_y * 8 * frame->linesize[1]) + mb_x * 8;
|
|
const uint8_t *ptr_cr = frame->data[2] + (mb_y * 8 * frame->linesize[2]) + mb_x * 8;
|
|
|
|
a->pdsp.get_pixels(block[0], ptr_y, linesize);
|
|
a->pdsp.get_pixels(block[1], ptr_y + 8, linesize);
|
|
a->pdsp.get_pixels(block[2], ptr_y + 8 * linesize, linesize);
|
|
a->pdsp.get_pixels(block[3], ptr_y + 8 * linesize + 8, linesize);
|
|
for (i = 0; i < 4; i++)
|
|
a->fdsp.fdct(block[i]);
|
|
|
|
if (!(a->c.avctx->flags & AV_CODEC_FLAG_GRAY)) {
|
|
a->pdsp.get_pixels(block[4], ptr_cb, frame->linesize[1]);
|
|
a->pdsp.get_pixels(block[5], ptr_cr, frame->linesize[2]);
|
|
for (i = 4; i < 6; i++)
|
|
a->fdsp.fdct(block[i]);
|
|
}
|
|
}
|
|
|
|
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
|
const AVFrame *pict, int *got_packet)
|
|
{
|
|
ASVEncContext *const a = avctx->priv_data;
|
|
const ASVCommonContext *const c = &a->c;
|
|
int size, ret;
|
|
|
|
if (pict->width % 16 || pict->height % 16) {
|
|
AVFrame *clone = av_frame_alloc();
|
|
int i;
|
|
|
|
if (!clone)
|
|
return AVERROR(ENOMEM);
|
|
clone->format = pict->format;
|
|
clone->width = FFALIGN(pict->width, 16);
|
|
clone->height = FFALIGN(pict->height, 16);
|
|
ret = av_frame_get_buffer(clone, 0);
|
|
if (ret < 0) {
|
|
av_frame_free(&clone);
|
|
return ret;
|
|
}
|
|
|
|
ret = av_frame_copy(clone, pict);
|
|
if (ret < 0) {
|
|
av_frame_free(&clone);
|
|
return ret;
|
|
}
|
|
|
|
for (i = 0; i<3; i++) {
|
|
int x, y;
|
|
int w = AV_CEIL_RSHIFT(pict->width, !!i);
|
|
int h = AV_CEIL_RSHIFT(pict->height, !!i);
|
|
int w2 = AV_CEIL_RSHIFT(clone->width, !!i);
|
|
int h2 = AV_CEIL_RSHIFT(clone->height, !!i);
|
|
for (y=0; y<h; y++)
|
|
for (x=w; x<w2; x++)
|
|
clone->data[i][x + y*clone->linesize[i]] =
|
|
clone->data[i][w - 1 + y*clone->linesize[i]];
|
|
for (y=h; y<h2; y++)
|
|
for (x=0; x<w2; x++)
|
|
clone->data[i][x + y*clone->linesize[i]] =
|
|
clone->data[i][x + (h-1)*clone->linesize[i]];
|
|
}
|
|
ret = encode_frame(avctx, pkt, clone, got_packet);
|
|
|
|
av_frame_free(&clone);
|
|
return ret;
|
|
}
|
|
|
|
if ((ret = ff_alloc_packet(avctx, pkt, c->mb_height * c->mb_width * MAX_MB_SIZE +
|
|
FF_INPUT_BUFFER_MIN_SIZE)) < 0)
|
|
return ret;
|
|
|
|
init_put_bits(&a->pb, pkt->data, pkt->size);
|
|
|
|
for (int mb_y = 0; mb_y < c->mb_height2; mb_y++) {
|
|
for (int mb_x = 0; mb_x < c->mb_width2; mb_x++) {
|
|
dct_get(a, pict, mb_x, mb_y);
|
|
encode_mb(a, a->block);
|
|
}
|
|
}
|
|
|
|
if (c->mb_width2 != c->mb_width) {
|
|
int mb_x = c->mb_width2;
|
|
for (int mb_y = 0; mb_y < c->mb_height2; mb_y++) {
|
|
dct_get(a, pict, mb_x, mb_y);
|
|
encode_mb(a, a->block);
|
|
}
|
|
}
|
|
|
|
if (c->mb_height2 != c->mb_height) {
|
|
int mb_y = c->mb_height2;
|
|
for (int mb_x = 0; mb_x < c->mb_width; mb_x++) {
|
|
dct_get(a, pict, mb_x, mb_y);
|
|
encode_mb(a, a->block);
|
|
}
|
|
}
|
|
|
|
if (avctx->codec_id == AV_CODEC_ID_ASV1)
|
|
flush_put_bits(&a->pb);
|
|
else
|
|
flush_put_bits_le(&a->pb);
|
|
AV_WN32(put_bits_ptr(&a->pb), 0);
|
|
size = (put_bytes_output(&a->pb) + 3) / 4;
|
|
|
|
if (avctx->codec_id == AV_CODEC_ID_ASV1) {
|
|
c->bbdsp.bswap_buf((uint32_t *) pkt->data,
|
|
(uint32_t *) pkt->data, size);
|
|
}
|
|
|
|
pkt->size = size * 4;
|
|
*got_packet = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int encode_init(AVCodecContext *avctx)
|
|
{
|
|
ASVEncContext *const a = avctx->priv_data;
|
|
int i;
|
|
const int scale = avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2;
|
|
int inv_qscale;
|
|
|
|
ff_asv_common_init(avctx);
|
|
ff_fdctdsp_init(&a->fdsp, avctx);
|
|
ff_pixblockdsp_init(&a->pdsp, avctx);
|
|
|
|
if (avctx->global_quality <= 0)
|
|
avctx->global_quality = 4 * FF_QUALITY_SCALE;
|
|
|
|
inv_qscale = (32 * scale * FF_QUALITY_SCALE +
|
|
avctx->global_quality / 2) / avctx->global_quality;
|
|
|
|
avctx->extradata = av_mallocz(8);
|
|
if (!avctx->extradata)
|
|
return AVERROR(ENOMEM);
|
|
avctx->extradata_size = 8;
|
|
AV_WLA(32, avctx->extradata, inv_qscale);
|
|
((uint32_t *) avctx->extradata)[1] = av_le2ne32(AV_RL32("ASUS"));
|
|
|
|
for (i = 0; i < 64; i++) {
|
|
if (a->fdsp.fdct == ff_fdct_ifast) {
|
|
int q = 32LL * scale * ff_mpeg1_default_intra_matrix[i] * ff_aanscales[i];
|
|
a->q_intra_matrix[i] = (((int64_t)inv_qscale << 30) + q / 2) / q;
|
|
} else {
|
|
int q = 32 * scale * ff_mpeg1_default_intra_matrix[i];
|
|
a->q_intra_matrix[i] = ((inv_qscale << 16) + q / 2) / q;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_ASV1_ENCODER
|
|
const FFCodec ff_asv1_encoder = {
|
|
.p.name = "asv1",
|
|
CODEC_LONG_NAME("ASUS V1"),
|
|
.p.type = AVMEDIA_TYPE_VIDEO,
|
|
.p.id = AV_CODEC_ID_ASV1,
|
|
.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
|
|
.priv_data_size = sizeof(ASVEncContext),
|
|
.init = encode_init,
|
|
FF_CODEC_ENCODE_CB(encode_frame),
|
|
.p.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
|
|
AV_PIX_FMT_NONE },
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_ASV2_ENCODER
|
|
const FFCodec ff_asv2_encoder = {
|
|
.p.name = "asv2",
|
|
CODEC_LONG_NAME("ASUS V2"),
|
|
.p.type = AVMEDIA_TYPE_VIDEO,
|
|
.p.id = AV_CODEC_ID_ASV2,
|
|
.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
|
|
.priv_data_size = sizeof(ASVEncContext),
|
|
.init = encode_init,
|
|
FF_CODEC_ENCODE_CB(encode_frame),
|
|
.p.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
|
|
AV_PIX_FMT_NONE },
|
|
};
|
|
#endif
|