blob: 243d3ca632046fddcb92c742cf36549c78f18036 [file] [log] [blame]
/*
* The simplest mpeg encoder (well, it was the simplest!)
* Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
*
* 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
*/
/*
* non linear quantizers with large QPs and VBV with restrictive qmin fixes sponsored by NOA GmbH
*/
/**
* @file
* The simplest mpeg encoder (well, it was the simplest!).
*/
#include <stdint.h>
#include "libavutil/internal.h"
#include "libavutil/intmath.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "dct.h"
#include "idctdsp.h"
#include "mpeg12.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"
#include "h261.h"
#include "h263.h"
#include "h263data.h"
#include "mjpegenc_common.h"
#include "mathops.h"
#include "mpegutils.h"
#include "mjpegenc.h"
#include "speedhqenc.h"
#include "msmpeg4.h"
#include "pixblockdsp.h"
#include "qpeldsp.h"
#include "faandct.h"
#include "thread.h"
#include "aandcttab.h"
#include "flv.h"
#include "mpeg4video.h"
#include "internal.h"
#include "bytestream.h"
#include "wmv2.h"
#include "rv10.h"
#include "packet_internal.h"
#include "libxvid.h"
#include <limits.h>
#include "sp5x.h"
#define QUANT_BIAS_SHIFT 8
#define QMAT_SHIFT_MMX 16
#define QMAT_SHIFT 21
static int encode_picture(MpegEncContext *s, int picture_number);
static int dct_quantize_refine(MpegEncContext *s, int16_t *block, int16_t *weight, int16_t *orig, int n, int qscale);
static int sse_mb(MpegEncContext *s);
static void denoise_dct_c(MpegEncContext *s, int16_t *block);
static int dct_quantize_trellis_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
static uint8_t default_mv_penalty[MAX_FCODE + 1][MAX_DMV * 2 + 1];
static uint8_t default_fcode_tab[MAX_MV * 2 + 1];
const AVOption ff_mpv_generic_options[] = {
FF_MPV_COMMON_OPTS
{ NULL },
};
void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64],
uint16_t (*qmat16)[2][64],
const uint16_t *quant_matrix,
int bias, int qmin, int qmax, int intra)
{
FDCTDSPContext *fdsp = &s->fdsp;
int qscale;
int shift = 0;
for (qscale = qmin; qscale <= qmax; qscale++) {
int i;
int qscale2;
if (s->q_scale_type) qscale2 = ff_mpeg2_non_linear_qscale[qscale];
else qscale2 = qscale << 1;
if (fdsp->fdct == ff_jpeg_fdct_islow_8 ||
#if CONFIG_FAANDCT
fdsp->fdct == ff_faandct ||
#endif /* CONFIG_FAANDCT */
fdsp->fdct == ff_jpeg_fdct_islow_10) {
for (i = 0; i < 64; i++) {
const int j = s->idsp.idct_permutation[i];
int64_t den = (int64_t) qscale2 * quant_matrix[j];
/* 16 <= qscale * quant_matrix[i] <= 7905
* Assume x = ff_aanscales[i] * qscale * quant_matrix[i]
* 19952 <= x <= 249205026
* (1 << 36) / 19952 >= (1 << 36) / (x) >= (1 << 36) / 249205026
* 3444240 >= (1 << 36) / (x) >= 275 */
qmat[qscale][i] = (int)((UINT64_C(2) << QMAT_SHIFT) / den);
}
} else if (fdsp->fdct == ff_fdct_ifast) {
for (i = 0; i < 64; i++) {
const int j = s->idsp.idct_permutation[i];
int64_t den = ff_aanscales[i] * (int64_t) qscale2 * quant_matrix[j];
/* 16 <= qscale * quant_matrix[i] <= 7905
* Assume x = ff_aanscales[i] * qscale * quant_matrix[i]
* 19952 <= x <= 249205026
* (1 << 36) / 19952 >= (1 << 36) / (x) >= (1 << 36) / 249205026
* 3444240 >= (1 << 36) / (x) >= 275 */
qmat[qscale][i] = (int)((UINT64_C(2) << (QMAT_SHIFT + 14)) / den);
}
} else {
for (i = 0; i < 64; i++) {
const int j = s->idsp.idct_permutation[i];
int64_t den = (int64_t) qscale2 * quant_matrix[j];
/* We can safely suppose that 16 <= quant_matrix[i] <= 255
* Assume x = qscale * quant_matrix[i]
* So 16 <= x <= 7905
* so (1 << 19) / 16 >= (1 << 19) / (x) >= (1 << 19) / 7905
* so 32768 >= (1 << 19) / (x) >= 67 */
qmat[qscale][i] = (int)((UINT64_C(2) << QMAT_SHIFT) / den);
//qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) /
// (qscale * quant_matrix[i]);
qmat16[qscale][0][i] = (2 << QMAT_SHIFT_MMX) / den;
if (qmat16[qscale][0][i] == 0 ||
qmat16[qscale][0][i] == 128 * 256)
qmat16[qscale][0][i] = 128 * 256 - 1;
qmat16[qscale][1][i] =
ROUNDED_DIV(bias * (1<<(16 - QUANT_BIAS_SHIFT)),
qmat16[qscale][0][i]);
}
}
for (i = intra; i < 64; i++) {
int64_t max = 8191;
if (fdsp->fdct == ff_fdct_ifast) {
max = (8191LL * ff_aanscales[i]) >> 14;
}
while (((max * qmat[qscale][i]) >> shift) > INT_MAX) {
shift++;
}
}
}
if (shift) {
av_log(s->avctx, AV_LOG_INFO,
"Warning, QMAT_SHIFT is larger than %d, overflows possible\n",
QMAT_SHIFT - shift);
}
}
static inline void update_qscale(MpegEncContext *s)
{
if (s->q_scale_type == 1 && 0) {
int i;
int bestdiff=INT_MAX;
int best = 1;
for (i = 0 ; i<FF_ARRAY_ELEMS(ff_mpeg2_non_linear_qscale); i++) {
int diff = FFABS((ff_mpeg2_non_linear_qscale[i]<<(FF_LAMBDA_SHIFT + 6)) - (int)s->lambda * 139);
if (ff_mpeg2_non_linear_qscale[i] < s->avctx->qmin ||
(ff_mpeg2_non_linear_qscale[i] > s->avctx->qmax && !s->vbv_ignore_qmax))
continue;
if (diff < bestdiff) {
bestdiff = diff;
best = i;
}
}
s->qscale = best;
} else {
s->qscale = (s->lambda * 139 + FF_LAMBDA_SCALE * 64) >>
(FF_LAMBDA_SHIFT + 7);
s->qscale = av_clip(s->qscale, s->avctx->qmin, s->vbv_ignore_qmax ? 31 : s->avctx->qmax);
}
s->lambda2 = (s->lambda * s->lambda + FF_LAMBDA_SCALE / 2) >>
FF_LAMBDA_SHIFT;
}
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix)
{
int i;
if (matrix) {
put_bits(pb, 1, 1);
for (i = 0; i < 64; i++) {
put_bits(pb, 8, matrix[ff_zigzag_direct[i]]);
}
} else
put_bits(pb, 1, 0);
}
/**
* init s->current_picture.qscale_table from s->lambda_table
*/
void ff_init_qscale_tab(MpegEncContext *s)
{
int8_t * const qscale_table = s->current_picture.qscale_table;
int i;
for (i = 0; i < s->mb_num; i++) {
unsigned int lam = s->lambda_table[s->mb_index2xy[i]];
int qp = (lam * 139 + FF_LAMBDA_SCALE * 64) >> (FF_LAMBDA_SHIFT + 7);
qscale_table[s->mb_index2xy[i]] = av_clip(qp, s->avctx->qmin,
s->avctx->qmax);
}
}
static void update_duplicate_context_after_me(MpegEncContext *dst,
MpegEncContext *src)
{
#define COPY(a) dst->a= src->a
COPY(pict_type);
COPY(current_picture);
COPY(f_code);
COPY(b_code);
COPY(qscale);
COPY(lambda);
COPY(lambda2);
COPY(picture_in_gop_number);
COPY(gop_picture_number);
COPY(frame_pred_frame_dct); // FIXME don't set in encode_header
COPY(progressive_frame); // FIXME don't set in encode_header
COPY(partitioned_frame); // FIXME don't set in encode_header
#undef COPY
}
/**
* Set the given MpegEncContext to defaults for encoding.
* the changed fields will not depend upon the prior state of the MpegEncContext.
*/
static void mpv_encode_defaults(MpegEncContext *s)
{
int i;
ff_mpv_common_defaults(s);
for (i = -16; i < 16; i++) {
default_fcode_tab[i + MAX_MV] = 1;
}
s->me.mv_penalty = default_mv_penalty;
s->fcode_tab = default_fcode_tab;
s->input_picture_number = 0;
s->picture_in_gop_number = 0;
}
av_cold int ff_dct_encode_init(MpegEncContext *s)
{
if (ARCH_X86)
ff_dct_encode_init_x86(s);
if (CONFIG_H263_ENCODER)
ff_h263dsp_init(&s->h263dsp);
if (!s->dct_quantize)
s->dct_quantize = ff_dct_quantize_c;
if (!s->denoise_dct)
s->denoise_dct = denoise_dct_c;
s->fast_dct_quantize = s->dct_quantize;
if (s->avctx->trellis)
s->dct_quantize = dct_quantize_trellis_c;
return 0;
}
/* init video encoder */
av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
AVCPBProperties *cpb_props;
int i, ret, format_supported;
mpv_encode_defaults(s);
switch (avctx->codec_id) {
case AV_CODEC_ID_MPEG2VIDEO:
if (avctx->pix_fmt != AV_PIX_FMT_YUV420P &&
avctx->pix_fmt != AV_PIX_FMT_YUV422P) {
av_log(avctx, AV_LOG_ERROR,
"only YUV420 and YUV422 are supported\n");
return AVERROR(EINVAL);
}
break;
case AV_CODEC_ID_MJPEG:
case AV_CODEC_ID_AMV:
format_supported = 0;
/* JPEG color space */
if (avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
(avctx->color_range == AVCOL_RANGE_JPEG &&
(avctx->pix_fmt == AV_PIX_FMT_YUV420P ||
avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
avctx->pix_fmt == AV_PIX_FMT_YUV444P)))
format_supported = 1;
/* MPEG color space */
else if (avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL &&
(avctx->pix_fmt == AV_PIX_FMT_YUV420P ||
avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
avctx->pix_fmt == AV_PIX_FMT_YUV444P))
format_supported = 1;
if (!format_supported) {
av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
return AVERROR(EINVAL);
}
break;
case AV_CODEC_ID_SPEEDHQ:
if (avctx->pix_fmt != AV_PIX_FMT_YUV420P &&
avctx->pix_fmt != AV_PIX_FMT_YUV422P &&
avctx->pix_fmt != AV_PIX_FMT_YUV444P) {
av_log(avctx, AV_LOG_ERROR,
"only YUV420/YUV422/YUV444 are supported (no alpha support yet)\n");
return AVERROR(EINVAL);
}
break;
default:
if (avctx->pix_fmt != AV_PIX_FMT_YUV420P) {
av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
return AVERROR(EINVAL);
}
}
switch (avctx->pix_fmt) {
case AV_PIX_FMT_YUVJ444P:
case AV_PIX_FMT_YUV444P:
s->chroma_format = CHROMA_444;
break;
case AV_PIX_FMT_YUVJ422P:
case AV_PIX_FMT_YUV422P:
s->chroma_format = CHROMA_422;
break;
case AV_PIX_FMT_YUVJ420P:
case AV_PIX_FMT_YUV420P:
default:
s->chroma_format = CHROMA_420;
break;
}
avctx->bits_per_raw_sample = av_clip(avctx->bits_per_raw_sample, 0, 8);
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->rtp_payload_size)
s->rtp_payload_size = avctx->rtp_payload_size;
if (avctx->me_penalty_compensation)
s->me_penalty_compensation = avctx->me_penalty_compensation;
if (avctx->pre_me)
s->me_pre = avctx->pre_me;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
s->bit_rate = avctx->bit_rate;
s->width = avctx->width;
s->height = avctx->height;
if (avctx->gop_size > 600 &&
avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
av_log(avctx, AV_LOG_WARNING,
"keyframe interval too large!, reducing it from %d to %d\n",
avctx->gop_size, 600);
avctx->gop_size = 600;
}
s->gop_size = avctx->gop_size;
s->avctx = avctx;
if (avctx->max_b_frames > MAX_B_FRAMES) {
av_log(avctx, AV_LOG_ERROR, "Too many B-frames requested, maximum "
"is %d.\n", MAX_B_FRAMES);
avctx->max_b_frames = MAX_B_FRAMES;
}
s->max_b_frames = avctx->max_b_frames;
s->codec_id = avctx->codec->id;
s->strict_std_compliance = avctx->strict_std_compliance;
s->quarter_sample = (avctx->flags & AV_CODEC_FLAG_QPEL) != 0;
s->rtp_mode = !!s->rtp_payload_size;
s->intra_dc_precision = avctx->intra_dc_precision;
// workaround some differences between how applications specify dc precision
if (s->intra_dc_precision < 0) {
s->intra_dc_precision += 8;
} else if (s->intra_dc_precision >= 8)
s->intra_dc_precision -= 8;
if (s->intra_dc_precision < 0) {
av_log(avctx, AV_LOG_ERROR,
"intra dc precision must be positive, note some applications use"
" 0 and some 8 as base meaning 8bit, the value must not be smaller than that\n");
return AVERROR(EINVAL);
}
if (avctx->codec_id == AV_CODEC_ID_AMV || (avctx->active_thread_type & FF_THREAD_SLICE))
s->huffman = 0;
if (s->intra_dc_precision > (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO ? 3 : 0)) {
av_log(avctx, AV_LOG_ERROR, "intra dc precision too large\n");
return AVERROR(EINVAL);
}
s->user_specified_pts = AV_NOPTS_VALUE;
if (s->gop_size <= 1) {
s->intra_only = 1;
s->gop_size = 12;
} else {
s->intra_only = 0;
}
/* Fixed QSCALE */
s->fixed_qscale = !!(avctx->flags & AV_CODEC_FLAG_QSCALE);
s->adaptive_quant = (avctx->lumi_masking ||
avctx->dark_masking ||
avctx->temporal_cplx_masking ||
avctx->spatial_cplx_masking ||
avctx->p_masking ||
s->border_masking ||
(s->mpv_flags & FF_MPV_FLAG_QP_RD)) &&
!s->fixed_qscale;
s->loop_filter = !!(avctx->flags & AV_CODEC_FLAG_LOOP_FILTER);
if (avctx->rc_max_rate && !avctx->rc_buffer_size) {
switch(avctx->codec_id) {
case AV_CODEC_ID_MPEG1VIDEO:
case AV_CODEC_ID_MPEG2VIDEO:
avctx->rc_buffer_size = FFMAX(avctx->rc_max_rate, 15000000) * 112LL / 15000000 * 16384;
break;
case AV_CODEC_ID_MPEG4:
case AV_CODEC_ID_MSMPEG4V1:
case AV_CODEC_ID_MSMPEG4V2:
case AV_CODEC_ID_MSMPEG4V3:
if (avctx->rc_max_rate >= 15000000) {
avctx->rc_buffer_size = 320 + (avctx->rc_max_rate - 15000000LL) * (760-320) / (38400000 - 15000000);
} else if(avctx->rc_max_rate >= 2000000) {
avctx->rc_buffer_size = 80 + (avctx->rc_max_rate - 2000000LL) * (320- 80) / (15000000 - 2000000);
} else if(avctx->rc_max_rate >= 384000) {
avctx->rc_buffer_size = 40 + (avctx->rc_max_rate - 384000LL) * ( 80- 40) / ( 2000000 - 384000);
} else
avctx->rc_buffer_size = 40;
avctx->rc_buffer_size *= 16384;
break;
}
if (avctx->rc_buffer_size) {
av_log(avctx, AV_LOG_INFO, "Automatically choosing VBV buffer size of %d kbyte\n", avctx->rc_buffer_size/8192);
}
}
if ((!avctx->rc_max_rate) != (!avctx->rc_buffer_size)) {
av_log(avctx, AV_LOG_ERROR, "Either both buffer size and max rate or neither must be specified\n");
return AVERROR(EINVAL);
}
if (avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate) {
av_log(avctx, AV_LOG_INFO,
"Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
}
if (avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate) {
av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
return AVERROR(EINVAL);
}
if (avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate) {
av_log(avctx, AV_LOG_ERROR, "bitrate above max bitrate\n");
return AVERROR(EINVAL);
}
if (avctx->rc_max_rate &&
avctx->rc_max_rate == avctx->bit_rate &&
avctx->rc_max_rate != avctx->rc_min_rate) {
av_log(avctx, AV_LOG_INFO,
"impossible bitrate constraints, this will fail\n");
}
if (avctx->rc_buffer_size &&
avctx->bit_rate * (int64_t)avctx->time_base.num >
avctx->rc_buffer_size * (int64_t)avctx->time_base.den) {
av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
return AVERROR(EINVAL);
}
if (!s->fixed_qscale &&
avctx->bit_rate * av_q2d(avctx->time_base) >
avctx->bit_rate_tolerance) {
av_log(avctx, AV_LOG_WARNING,
"bitrate tolerance %d too small for bitrate %"PRId64", overriding\n", avctx->bit_rate_tolerance, avctx->bit_rate);
avctx->bit_rate_tolerance = 5 * avctx->bit_rate * av_q2d(avctx->time_base);
}
if (avctx->rc_max_rate &&
avctx->rc_min_rate == avctx->rc_max_rate &&
(s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
s->codec_id == AV_CODEC_ID_MPEG2VIDEO) &&
90000LL * (avctx->rc_buffer_size - 1) >
avctx->rc_max_rate * 0xFFFFLL) {
av_log(avctx, AV_LOG_INFO,
"Warning vbv_delay will be set to 0xFFFF (=VBR) as the "
"specified vbv buffer is too large for the given bitrate!\n");
}
if ((avctx->flags & AV_CODEC_FLAG_4MV) && s->codec_id != AV_CODEC_ID_MPEG4 &&
s->codec_id != AV_CODEC_ID_H263 && s->codec_id != AV_CODEC_ID_H263P &&
s->codec_id != AV_CODEC_ID_FLV1) {
av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
return AVERROR(EINVAL);
}
if (s->obmc && avctx->mb_decision != FF_MB_DECISION_SIMPLE) {
av_log(avctx, AV_LOG_ERROR,
"OBMC is only supported with simple mb decision\n");
return AVERROR(EINVAL);
}
if (s->quarter_sample && s->codec_id != AV_CODEC_ID_MPEG4) {
av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
return AVERROR(EINVAL);
}
if (s->max_b_frames &&
s->codec_id != AV_CODEC_ID_MPEG4 &&
s->codec_id != AV_CODEC_ID_MPEG1VIDEO &&
s->codec_id != AV_CODEC_ID_MPEG2VIDEO) {
av_log(avctx, AV_LOG_ERROR, "B-frames not supported by codec\n");
return AVERROR(EINVAL);
}
if (s->max_b_frames < 0) {
av_log(avctx, AV_LOG_ERROR,
"max b frames must be 0 or positive for mpegvideo based encoders\n");
return AVERROR(EINVAL);
}
if ((s->codec_id == AV_CODEC_ID_MPEG4 ||
s->codec_id == AV_CODEC_ID_H263 ||
s->codec_id == AV_CODEC_ID_H263P) &&
(avctx->sample_aspect_ratio.num > 255 ||
avctx->sample_aspect_ratio.den > 255)) {
av_log(avctx, AV_LOG_WARNING,
"Invalid pixel aspect ratio %i/%i, limit is 255/255 reducing\n",
avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
av_reduce(&avctx->sample_aspect_ratio.num, &avctx->sample_aspect_ratio.den,
avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 255);
}
if ((s->codec_id == AV_CODEC_ID_H263 ||
s->codec_id == AV_CODEC_ID_H263P) &&
(avctx->width > 2048 ||
avctx->height > 1152 )) {
av_log(avctx, AV_LOG_ERROR, "H.263 does not support resolutions above 2048x1152\n");
return AVERROR(EINVAL);
}
if ((s->codec_id == AV_CODEC_ID_H263 ||
s->codec_id == AV_CODEC_ID_H263P) &&
((avctx->width &3) ||
(avctx->height&3) )) {
av_log(avctx, AV_LOG_ERROR, "w/h must be a multiple of 4\n");
return AVERROR(EINVAL);
}
if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO &&
(avctx->width > 4095 ||
avctx->height > 4095 )) {
av_log(avctx, AV_LOG_ERROR, "MPEG-1 does not support resolutions above 4095x4095\n");
return AVERROR(EINVAL);
}
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
(avctx->width > 16383 ||
avctx->height > 16383 )) {
av_log(avctx, AV_LOG_ERROR, "MPEG-2 does not support resolutions above 16383x16383\n");
return AVERROR(EINVAL);
}
if (s->codec_id == AV_CODEC_ID_RV10 &&
(avctx->width &15 ||
avctx->height&15 )) {
av_log(avctx, AV_LOG_ERROR, "width and height must be a multiple of 16\n");
return AVERROR(EINVAL);
}
if (s->codec_id == AV_CODEC_ID_RV20 &&
(avctx->width &3 ||
avctx->height&3 )) {
av_log(avctx, AV_LOG_ERROR, "width and height must be a multiple of 4\n");
return AVERROR(EINVAL);
}
if ((s->codec_id == AV_CODEC_ID_WMV1 ||
s->codec_id == AV_CODEC_ID_WMV2) &&
avctx->width & 1) {
av_log(avctx, AV_LOG_ERROR, "width must be multiple of 2\n");
return AVERROR(EINVAL);
}
if ((avctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME)) &&
s->codec_id != AV_CODEC_ID_MPEG4 && s->codec_id != AV_CODEC_ID_MPEG2VIDEO) {
av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
return AVERROR(EINVAL);
}
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->mpeg_quant)
s->mpeg_quant = avctx->mpeg_quant;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
// FIXME mpeg2 uses that too
if (s->mpeg_quant && ( s->codec_id != AV_CODEC_ID_MPEG4
&& s->codec_id != AV_CODEC_ID_MPEG2VIDEO)) {
av_log(avctx, AV_LOG_ERROR,
"mpeg2 style quantization not supported by codec\n");
return AVERROR(EINVAL);
}
if ((s->mpv_flags & FF_MPV_FLAG_CBP_RD) && !avctx->trellis) {
av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
return AVERROR(EINVAL);
}
if ((s->mpv_flags & FF_MPV_FLAG_QP_RD) &&
avctx->mb_decision != FF_MB_DECISION_RD) {
av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
return AVERROR(EINVAL);
}
if ((s->mpv_flags & FF_MPV_FLAG_QP_RD) &&
(s->codec_id == AV_CODEC_ID_AMV ||
s->codec_id == AV_CODEC_ID_MJPEG)) {
// Used to produce garbage with MJPEG.
av_log(avctx, AV_LOG_ERROR,
"QP RD is no longer compatible with MJPEG or AMV\n");
return AVERROR(EINVAL);
}
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->scenechange_threshold)
s->scenechange_threshold = avctx->scenechange_threshold;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
if (s->scenechange_threshold < 1000000000 &&
(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP)) {
av_log(avctx, AV_LOG_ERROR,
"closed gop with scene change detection are not supported yet, "
"set threshold to 1000000000\n");
return AVERROR_PATCHWELCOME;
}
if (avctx->flags & AV_CODEC_FLAG_LOW_DELAY) {
if (s->codec_id != AV_CODEC_ID_MPEG2VIDEO &&
s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
av_log(avctx, AV_LOG_ERROR,
"low delay forcing is only available for mpeg2, "
"set strict_std_compliance to 'unofficial' or lower in order to allow it\n");
return AVERROR(EINVAL);
}
if (s->max_b_frames != 0) {
av_log(avctx, AV_LOG_ERROR,
"B-frames cannot be used with low delay\n");
return AVERROR(EINVAL);
}
}
if (s->q_scale_type == 1) {
if (avctx->qmax > 28) {
av_log(avctx, AV_LOG_ERROR,
"non linear quant only supports qmax <= 28 currently\n");
return AVERROR_PATCHWELCOME;
}
}
if (avctx->slices > 1 &&
(avctx->codec_id == AV_CODEC_ID_FLV1 || avctx->codec_id == AV_CODEC_ID_H261)) {
av_log(avctx, AV_LOG_ERROR, "Multiple slices are not supported by this codec\n");
return AVERROR(EINVAL);
}
if (avctx->thread_count > 1 &&
s->codec_id != AV_CODEC_ID_MPEG4 &&
s->codec_id != AV_CODEC_ID_MPEG1VIDEO &&
s->codec_id != AV_CODEC_ID_MPEG2VIDEO &&
s->codec_id != AV_CODEC_ID_MJPEG &&
(s->codec_id != AV_CODEC_ID_H263P)) {
av_log(avctx, AV_LOG_ERROR,
"multi threaded encoding not supported by codec\n");
return AVERROR_PATCHWELCOME;
}
if (avctx->thread_count < 1) {
av_log(avctx, AV_LOG_ERROR,
"automatic thread number detection not supported by codec, "
"patch welcome\n");
return AVERROR_PATCHWELCOME;
}
if (!avctx->time_base.den || !avctx->time_base.num) {
av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
return AVERROR(EINVAL);
}
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->b_frame_strategy)
s->b_frame_strategy = avctx->b_frame_strategy;
if (avctx->b_sensitivity != 40)
s->b_sensitivity = avctx->b_sensitivity;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
if (s->b_frame_strategy && (avctx->flags & AV_CODEC_FLAG_PASS2)) {
av_log(avctx, AV_LOG_INFO,
"notice: b_frame_strategy only affects the first pass\n");
s->b_frame_strategy = 0;
}
i = av_gcd(avctx->time_base.den, avctx->time_base.num);
if (i > 1) {
av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
avctx->time_base.den /= i;
avctx->time_base.num /= i;
//return -1;
}
if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG1VIDEO || s->codec_id == AV_CODEC_ID_MPEG2VIDEO || s->codec_id == AV_CODEC_ID_MJPEG || s->codec_id == AV_CODEC_ID_AMV || s->codec_id == AV_CODEC_ID_SPEEDHQ) {
// (a + x * 3 / 8) / x
s->intra_quant_bias = 3 << (QUANT_BIAS_SHIFT - 3);
s->inter_quant_bias = 0;
} else {
s->intra_quant_bias = 0;
// (a - x / 4) / x
s->inter_quant_bias = -(1 << (QUANT_BIAS_SHIFT - 2));
}
if (avctx->qmin > avctx->qmax || avctx->qmin <= 0) {
av_log(avctx, AV_LOG_ERROR, "qmin and or qmax are invalid, they must be 0 < min <= max\n");
return AVERROR(EINVAL);
}
av_log(avctx, AV_LOG_DEBUG, "intra_quant_bias = %d inter_quant_bias = %d\n",s->intra_quant_bias,s->inter_quant_bias);
if (avctx->codec_id == AV_CODEC_ID_MPEG4 &&
avctx->time_base.den > (1 << 16) - 1) {
av_log(avctx, AV_LOG_ERROR,
"timebase %d/%d not supported by MPEG 4 standard, "
"the maximum admitted value for the timebase denominator "
"is %d\n", avctx->time_base.num, avctx->time_base.den,
(1 << 16) - 1);
return AVERROR(EINVAL);
}
s->time_increment_bits = av_log2(avctx->time_base.den - 1) + 1;
switch (avctx->codec->id) {
case AV_CODEC_ID_MPEG1VIDEO:
s->out_format = FMT_MPEG1;
s->low_delay = !!(avctx->flags & AV_CODEC_FLAG_LOW_DELAY);
avctx->delay = s->low_delay ? 0 : (s->max_b_frames + 1);
break;
case AV_CODEC_ID_MPEG2VIDEO:
s->out_format = FMT_MPEG1;
s->low_delay = !!(avctx->flags & AV_CODEC_FLAG_LOW_DELAY);
avctx->delay = s->low_delay ? 0 : (s->max_b_frames + 1);
s->rtp_mode = 1;
break;
case AV_CODEC_ID_MJPEG:
case AV_CODEC_ID_AMV:
s->out_format = FMT_MJPEG;
s->intra_only = 1; /* force intra only for jpeg */
if (!CONFIG_MJPEG_ENCODER)
return AVERROR_ENCODER_NOT_FOUND;
if ((ret = ff_mjpeg_encode_init(s)) < 0)
return ret;
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_SPEEDHQ:
s->out_format = FMT_SPEEDHQ;
s->intra_only = 1; /* force intra only for SHQ */
if (!CONFIG_SPEEDHQ_ENCODER)
return AVERROR_ENCODER_NOT_FOUND;
if ((ret = ff_speedhq_encode_init(s)) < 0)
return ret;
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_H261:
if (!CONFIG_H261_ENCODER)
return AVERROR_ENCODER_NOT_FOUND;
if (ff_h261_get_picture_format(s->width, s->height) < 0) {
av_log(avctx, AV_LOG_ERROR,
"The specified picture size of %dx%d is not valid for the "
"H.261 codec.\nValid sizes are 176x144, 352x288\n",
s->width, s->height);
return AVERROR(EINVAL);
}
s->out_format = FMT_H261;
avctx->delay = 0;
s->low_delay = 1;
s->rtp_mode = 0; /* Sliced encoding not supported */
break;
case AV_CODEC_ID_H263:
if (!CONFIG_H263_ENCODER)
return AVERROR_ENCODER_NOT_FOUND;
if (ff_match_2uint16(ff_h263_format, FF_ARRAY_ELEMS(ff_h263_format),
s->width, s->height) == 8) {
av_log(avctx, AV_LOG_ERROR,
"The specified picture size of %dx%d is not valid for "
"the H.263 codec.\nValid sizes are 128x96, 176x144, "
"352x288, 704x576, and 1408x1152. "
"Try H.263+.\n", s->width, s->height);
return AVERROR(EINVAL);
}
s->out_format = FMT_H263;
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_H263P:
s->out_format = FMT_H263;
s->h263_plus = 1;
/* Fx */
s->h263_aic = (avctx->flags & AV_CODEC_FLAG_AC_PRED) ? 1 : 0;
s->modified_quant = s->h263_aic;
s->loop_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
s->unrestricted_mv = s->obmc || s->loop_filter || s->umvplus;
/* /Fx */
/* These are just to be sure */
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_FLV1:
s->out_format = FMT_H263;
s->h263_flv = 2; /* format = 1; 11-bit codes */
s->unrestricted_mv = 1;
s->rtp_mode = 0; /* don't allow GOB */
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_RV10:
s->out_format = FMT_H263;
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_RV20:
s->out_format = FMT_H263;
avctx->delay = 0;
s->low_delay = 1;
s->modified_quant = 1;
s->h263_aic = 1;
s->h263_plus = 1;
s->loop_filter = 1;
s->unrestricted_mv = 0;
break;
case AV_CODEC_ID_MPEG4:
s->out_format = FMT_H263;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->low_delay = s->max_b_frames ? 0 : 1;
avctx->delay = s->low_delay ? 0 : (s->max_b_frames + 1);
break;
case AV_CODEC_ID_MSMPEG4V2:
s->out_format = FMT_H263;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version = 2;
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_MSMPEG4V3:
s->out_format = FMT_H263;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version = 3;
s->flipflop_rounding = 1;
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_WMV1:
s->out_format = FMT_H263;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version = 4;
s->flipflop_rounding = 1;
avctx->delay = 0;
s->low_delay = 1;
break;
case AV_CODEC_ID_WMV2:
s->out_format = FMT_H263;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version = 5;
s->flipflop_rounding = 1;
avctx->delay = 0;
s->low_delay = 1;
break;
default:
return AVERROR(EINVAL);
}
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->noise_reduction)
s->noise_reduction = avctx->noise_reduction;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
avctx->has_b_frames = !s->low_delay;
s->encoding = 1;
s->progressive_frame =
s->progressive_sequence = !(avctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT |
AV_CODEC_FLAG_INTERLACED_ME) ||
s->alternate_scan);
/* init */
ff_mpv_idct_init(s);
if ((ret = ff_mpv_common_init(s)) < 0)
return ret;
ff_fdctdsp_init(&s->fdsp, avctx);
ff_me_cmp_init(&s->mecc, avctx);
ff_mpegvideoencdsp_init(&s->mpvencdsp, avctx);
ff_pixblockdsp_init(&s->pdsp, avctx);
ff_qpeldsp_init(&s->qdsp);
if (s->msmpeg4_version) {
int ac_stats_size = 2 * 2 * (MAX_LEVEL + 1) * (MAX_RUN + 1) * 2 * sizeof(int);
if (!(s->ac_stats = av_mallocz(ac_stats_size)))
return AVERROR(ENOMEM);
}
if (!(avctx->stats_out = av_mallocz(256)) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_intra_matrix, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_chroma_intra_matrix, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_inter_matrix, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_intra_matrix16, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_chroma_intra_matrix16, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_inter_matrix16, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->input_picture, MAX_PICTURE_COUNT) ||
!FF_ALLOCZ_TYPED_ARRAY(s->reordered_input_picture, MAX_PICTURE_COUNT))
return AVERROR(ENOMEM);
if (s->noise_reduction) {
if (!FF_ALLOCZ_TYPED_ARRAY(s->dct_offset, 2))
return AVERROR(ENOMEM);
}
ff_dct_encode_init(s);
if ((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
s->chroma_qscale_table = ff_h263_chroma_qscale_table;
if (s->slice_context_count > 1) {
s->rtp_mode = 1;
if (avctx->codec_id == AV_CODEC_ID_H263P)
s->h263_slice_structured = 1;
}
s->quant_precision = 5;
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->frame_skip_threshold)
s->frame_skip_threshold = avctx->frame_skip_threshold;
if (avctx->frame_skip_factor)
s->frame_skip_factor = avctx->frame_skip_factor;
if (avctx->frame_skip_exp)
s->frame_skip_exp = avctx->frame_skip_exp;
if (avctx->frame_skip_cmp != FF_CMP_DCTMAX)
s->frame_skip_cmp = avctx->frame_skip_cmp;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
ff_set_cmp(&s->mecc, s->mecc.ildct_cmp, avctx->ildct_cmp);
ff_set_cmp(&s->mecc, s->mecc.frame_skip_cmp, s->frame_skip_cmp);
if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
ff_h261_encode_init(s);
if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
ff_h263_encode_init(s);
if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
if ((ret = ff_msmpeg4_encode_init(s)) < 0)
return ret;
if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
&& s->out_format == FMT_MPEG1)
ff_mpeg1_encode_init(s);
/* init q matrix */
for (i = 0; i < 64; i++) {
int j = s->idsp.idct_permutation[i];
if (CONFIG_MPEG4_ENCODER && s->codec_id == AV_CODEC_ID_MPEG4 &&
s->mpeg_quant) {
s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
} else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
s->intra_matrix[j] =
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
} else if (CONFIG_SPEEDHQ_ENCODER && s->codec_id == AV_CODEC_ID_SPEEDHQ) {
s->intra_matrix[j] =
s->inter_matrix[j] = ff_mpeg1_default_intra_matrix[i];
} else {
/* MPEG-1/2 */
s->chroma_intra_matrix[j] =
s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
}
if (avctx->intra_matrix)
s->intra_matrix[j] = avctx->intra_matrix[i];
if (avctx->inter_matrix)
s->inter_matrix[j] = avctx->inter_matrix[i];
}
/* precompute matrix */
/* for mjpeg, we do include qscale in the matrix */
if (s->out_format != FMT_MJPEG) {
ff_convert_matrix(s, s->q_intra_matrix, s->q_intra_matrix16,
s->intra_matrix, s->intra_quant_bias, avctx->qmin,
31, 1);
ff_convert_matrix(s, s->q_inter_matrix, s->q_inter_matrix16,
s->inter_matrix, s->inter_quant_bias, avctx->qmin,
31, 0);
}
if ((ret = ff_rate_control_init(s)) < 0)
return ret;
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->brd_scale)
s->brd_scale = avctx->brd_scale;
if (avctx->prediction_method)
s->pred = avctx->prediction_method + 1;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
if (s->b_frame_strategy == 2) {
for (i = 0; i < s->max_b_frames + 2; i++) {
s->tmp_frames[i] = av_frame_alloc();
if (!s->tmp_frames[i])
return AVERROR(ENOMEM);
s->tmp_frames[i]->format = AV_PIX_FMT_YUV420P;
s->tmp_frames[i]->width = s->width >> s->brd_scale;
s->tmp_frames[i]->height = s->height >> s->brd_scale;
ret = av_frame_get_buffer(s->tmp_frames[i], 0);
if (ret < 0)
return ret;
}
}
cpb_props = ff_add_cpb_side_data(avctx);
if (!cpb_props)
return AVERROR(ENOMEM);
cpb_props->max_bitrate = avctx->rc_max_rate;
cpb_props->min_bitrate = avctx->rc_min_rate;
cpb_props->avg_bitrate = avctx->bit_rate;
cpb_props->buffer_size = avctx->rc_buffer_size;
return 0;
}
av_cold int ff_mpv_encode_end(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
int i;
ff_rate_control_uninit(s);
ff_mpv_common_end(s);
if (CONFIG_MJPEG_ENCODER &&
s->out_format == FMT_MJPEG)
ff_mjpeg_encode_close(s);
av_freep(&avctx->extradata);
for (i = 0; i < FF_ARRAY_ELEMS(s->tmp_frames); i++)
av_frame_free(&s->tmp_frames[i]);
ff_free_picture_tables(&s->new_picture);
ff_mpeg_unref_picture(avctx, &s->new_picture);
av_freep(&avctx->stats_out);
av_freep(&s->ac_stats);
if(s->q_chroma_intra_matrix != s->q_intra_matrix ) av_freep(&s->q_chroma_intra_matrix);
if(s->q_chroma_intra_matrix16 != s->q_intra_matrix16) av_freep(&s->q_chroma_intra_matrix16);
s->q_chroma_intra_matrix= NULL;
s->q_chroma_intra_matrix16= NULL;
av_freep(&s->q_intra_matrix);
av_freep(&s->q_inter_matrix);
av_freep(&s->q_intra_matrix16);
av_freep(&s->q_inter_matrix16);
av_freep(&s->input_picture);
av_freep(&s->reordered_input_picture);
av_freep(&s->dct_offset);
return 0;
}
static int get_sae(uint8_t *src, int ref, int stride)
{
int x,y;
int acc = 0;
for (y = 0; y < 16; y++) {
for (x = 0; x < 16; x++) {
acc += FFABS(src[x + y * stride] - ref);
}
}
return acc;
}
static int get_intra_count(MpegEncContext *s, uint8_t *src,
uint8_t *ref, int stride)
{
int x, y, w, h;
int acc = 0;
w = s->width & ~15;
h = s->height & ~15;
for (y = 0; y < h; y += 16) {
for (x = 0; x < w; x += 16) {
int offset = x + y * stride;
int sad = s->mecc.sad[0](NULL, src + offset, ref + offset,
stride, 16);
int mean = (s->mpvencdsp.pix_sum(src + offset, stride) + 128) >> 8;
int sae = get_sae(src + offset, mean, stride);
acc += sae + 500 < sad;
}
}
return acc;
}
static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
{
return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 1,
s->chroma_x_shift, s->chroma_y_shift, s->out_format,
s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
&s->linesize, &s->uvlinesize);
}
static int load_input_picture(MpegEncContext *s, const AVFrame *pic_arg)
{
Picture *pic = NULL;
int64_t pts;
int i, display_picture_number = 0, ret;
int encoding_delay = s->max_b_frames ? s->max_b_frames
: (s->low_delay ? 0 : 1);
int flush_offset = 1;
int direct = 1;
if (pic_arg) {
pts = pic_arg->pts;
display_picture_number = s->input_picture_number++;
if (pts != AV_NOPTS_VALUE) {
if (s->user_specified_pts != AV_NOPTS_VALUE) {
int64_t last = s->user_specified_pts;
if (pts <= last) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid pts (%"PRId64") <= last (%"PRId64")\n",
pts, last);
return AVERROR(EINVAL);
}
if (!s->low_delay && display_picture_number == 1)
s->dts_delta = pts - last;
}
s->user_specified_pts = pts;
} else {
if (s->user_specified_pts != AV_NOPTS_VALUE) {
s->user_specified_pts =
pts = s->user_specified_pts + 1;
av_log(s->avctx, AV_LOG_INFO,
"Warning: AVFrame.pts=? trying to guess (%"PRId64")\n",
pts);
} else {
pts = display_picture_number;
}
}
if (!pic_arg->buf[0] ||
pic_arg->linesize[0] != s->linesize ||
pic_arg->linesize[1] != s->uvlinesize ||
pic_arg->linesize[2] != s->uvlinesize)
direct = 0;
if ((s->width & 15) || (s->height & 15))
direct = 0;
if (((intptr_t)(pic_arg->data[0])) & (STRIDE_ALIGN-1))
direct = 0;
if (s->linesize & (STRIDE_ALIGN-1))
direct = 0;
ff_dlog(s->avctx, "%d %d %"PTRDIFF_SPECIFIER" %"PTRDIFF_SPECIFIER"\n", pic_arg->linesize[0],
pic_arg->linesize[1], s->linesize, s->uvlinesize);
i = ff_find_unused_picture(s->avctx, s->picture, direct);
if (i < 0)
return i;
pic = &s->picture[i];
pic->reference = 3;
if (direct) {
if ((ret = av_frame_ref(pic->f, pic_arg)) < 0)
return ret;
}
ret = alloc_picture(s, pic, direct);
if (ret < 0)
return ret;
if (!direct) {
if (pic->f->data[0] + INPLACE_OFFSET == pic_arg->data[0] &&
pic->f->data[1] + INPLACE_OFFSET == pic_arg->data[1] &&
pic->f->data[2] + INPLACE_OFFSET == pic_arg->data[2]) {
// empty
} else {
int h_chroma_shift, v_chroma_shift;
av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
&h_chroma_shift,
&v_chroma_shift);
for (i = 0; i < 3; i++) {
int src_stride = pic_arg->linesize[i];
int dst_stride = i ? s->uvlinesize : s->linesize;
int h_shift = i ? h_chroma_shift : 0;
int v_shift = i ? v_chroma_shift : 0;
int w = s->width >> h_shift;
int h = s->height >> v_shift;
uint8_t *src = pic_arg->data[i];
uint8_t *dst = pic->f->data[i];
int vpad = 16;
if ( s->codec_id == AV_CODEC_ID_MPEG2VIDEO
&& !s->progressive_sequence
&& FFALIGN(s->height, 32) - s->height > 16)
vpad = 32;
if (!s->avctx->rc_buffer_size)
dst += INPLACE_OFFSET;
if (src_stride == dst_stride)
memcpy(dst, src, src_stride * h);
else {
int h2 = h;
uint8_t *dst2 = dst;
while (h2--) {
memcpy(dst2, src, w);
dst2 += dst_stride;
src += src_stride;
}
}
if ((s->width & 15) || (s->height & (vpad-1))) {
s->mpvencdsp.draw_edges(dst, dst_stride,
w, h,
16 >> h_shift,
vpad >> v_shift,
EDGE_BOTTOM);
}
}
emms_c();
}
}
ret = av_frame_copy_props(pic->f, pic_arg);
if (ret < 0)
return ret;
pic->f->display_picture_number = display_picture_number;
pic->f->pts = pts; // we set this here to avoid modifying pic_arg
} else {
/* Flushing: When we have not received enough input frames,
* ensure s->input_picture[0] contains the first picture */
for (flush_offset = 0; flush_offset < encoding_delay + 1; flush_offset++)
if (s->input_picture[flush_offset])
break;
if (flush_offset <= 1)
flush_offset = 1;
else
encoding_delay = encoding_delay - flush_offset + 1;
}
/* shift buffer entries */
for (i = flush_offset; i < MAX_PICTURE_COUNT /*s->encoding_delay + 1*/; i++)
s->input_picture[i - flush_offset] = s->input_picture[i];
s->input_picture[encoding_delay] = (Picture*) pic;
return 0;
}
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref)
{
int x, y, plane;
int score = 0;
int64_t score64 = 0;
for (plane = 0; plane < 3; plane++) {
const int stride = p->f->linesize[plane];
const int bw = plane ? 1 : 2;
for (y = 0; y < s->mb_height * bw; y++) {
for (x = 0; x < s->mb_width * bw; x++) {
int off = p->shared ? 0 : 16;
uint8_t *dptr = p->f->data[plane] + 8 * (x + y * stride) + off;
uint8_t *rptr = ref->f->data[plane] + 8 * (x + y * stride);
int v = s->mecc.frame_skip_cmp[1](s, dptr, rptr, stride, 8);
switch (FFABS(s->frame_skip_exp)) {
case 0: score = FFMAX(score, v); break;
case 1: score += FFABS(v); break;
case 2: score64 += v * (int64_t)v; break;
case 3: score64 += FFABS(v * (int64_t)v * v); break;
case 4: score64 += (v * (int64_t)v) * (v * (int64_t)v); break;
}
}
}
}
emms_c();
if (score)
score64 = score;
if (s->frame_skip_exp < 0)
score64 = pow(score64 / (double)(s->mb_width * s->mb_height),
-1.0/s->frame_skip_exp);
if (score64 < s->frame_skip_threshold)
return 1;
if (score64 < ((s->frame_skip_factor * (int64_t) s->lambda) >> 8))
return 1;
return 0;
}
static int encode_frame(AVCodecContext *c, AVFrame *frame)
{
AVPacket pkt = { 0 };
int ret;
int size = 0;
av_init_packet(&pkt);
ret = avcodec_send_frame(c, frame);
if (ret < 0)
return ret;
do {
ret = avcodec_receive_packet(c, &pkt);
if (ret >= 0) {
size += pkt.size;
av_packet_unref(&pkt);
} else if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
return ret;
} while (ret >= 0);
return size;
}
static int estimate_best_b_count(MpegEncContext *s)
{
const AVCodec *codec = avcodec_find_encoder(s->avctx->codec_id);
const int scale = s->brd_scale;
int width = s->width >> scale;
int height = s->height >> scale;
int i, j, out_size, p_lambda, b_lambda, lambda2;
int64_t best_rd = INT64_MAX;
int best_b_count = -1;
int ret = 0;
av_assert0(scale >= 0 && scale <= 3);
//emms_c();
//s->next_picture_ptr->quality;
p_lambda = s->last_lambda_for[AV_PICTURE_TYPE_P];
//p_lambda * FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
b_lambda = s->last_lambda_for[AV_PICTURE_TYPE_B];
if (!b_lambda) // FIXME we should do this somewhere else
b_lambda = p_lambda;
lambda2 = (b_lambda * b_lambda + (1 << FF_LAMBDA_SHIFT) / 2) >>
FF_LAMBDA_SHIFT;
for (i = 0; i < s->max_b_frames + 2; i++) {
Picture pre_input, *pre_input_ptr = i ? s->input_picture[i - 1] :
s->next_picture_ptr;
uint8_t *data[4];
if (pre_input_ptr && (!i || s->input_picture[i - 1])) {
pre_input = *pre_input_ptr;
memcpy(data, pre_input_ptr->f->data, sizeof(data));
if (!pre_input.shared && i) {
data[0] += INPLACE_OFFSET;
data[1] += INPLACE_OFFSET;
data[2] += INPLACE_OFFSET;
}
s->mpvencdsp.shrink[scale](s->tmp_frames[i]->data[0],
s->tmp_frames[i]->linesize[0],
data[0],
pre_input.f->linesize[0],
width, height);
s->mpvencdsp.shrink[scale](s->tmp_frames[i]->data[1],
s->tmp_frames[i]->linesize[1],
data[1],
pre_input.f->linesize[1],
width >> 1, height >> 1);
s->mpvencdsp.shrink[scale](s->tmp_frames[i]->data[2],
s->tmp_frames[i]->linesize[2],
data[2],
pre_input.f->linesize[2],
width >> 1, height >> 1);
}
}
for (j = 0; j < s->max_b_frames + 1; j++) {
AVCodecContext *c;
int64_t rd = 0;
if (!s->input_picture[j])
break;
c = avcodec_alloc_context3(NULL);
if (!c)
return AVERROR(ENOMEM);
c->width = width;
c->height = height;
c->flags = AV_CODEC_FLAG_QSCALE | AV_CODEC_FLAG_PSNR;
c->flags |= s->avctx->flags & AV_CODEC_FLAG_QPEL;
c->mb_decision = s->avctx->mb_decision;
c->me_cmp = s->avctx->me_cmp;
c->mb_cmp = s->avctx->mb_cmp;
c->me_sub_cmp = s->avctx->me_sub_cmp;
c->pix_fmt = AV_PIX_FMT_YUV420P;
c->time_base = s->avctx->time_base;
c->max_b_frames = s->max_b_frames;
ret = avcodec_open2(c, codec, NULL);
if (ret < 0)
goto fail;
s->tmp_frames[0]->pict_type = AV_PICTURE_TYPE_I;
s->tmp_frames[0]->quality = 1 * FF_QP2LAMBDA;
out_size = encode_frame(c, s->tmp_frames[0]);
if (out_size < 0) {
ret = out_size;
goto fail;
}
//rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
for (i = 0; i < s->max_b_frames + 1; i++) {
int is_p = i % (j + 1) == j || i == s->max_b_frames;
s->tmp_frames[i + 1]->pict_type = is_p ?
AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B;
s->tmp_frames[i + 1]->quality = is_p ? p_lambda : b_lambda;
out_size = encode_frame(c, s->tmp_frames[i + 1]);
if (out_size < 0) {
ret = out_size;
goto fail;
}
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
}
/* get the delayed frames */
out_size = encode_frame(c, NULL);
if (out_size < 0) {
ret = out_size;
goto fail;
}
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
rd += c->error[0] + c->error[1] + c->error[2];
if (rd < best_rd) {
best_rd = rd;
best_b_count = j;
}
fail:
avcodec_free_context(&c);
if (ret < 0)
return ret;
}
return best_b_count;
}
static int select_input_picture(MpegEncContext *s)
{
int i, ret;
for (i = 1; i < MAX_PICTURE_COUNT; i++)
s->reordered_input_picture[i - 1] = s->reordered_input_picture[i];
s->reordered_input_picture[MAX_PICTURE_COUNT - 1] = NULL;
/* set next picture type & ordering */
if (!s->reordered_input_picture[0] && s->input_picture[0]) {
if (s->frame_skip_threshold || s->frame_skip_factor) {
if (s->picture_in_gop_number < s->gop_size &&
s->next_picture_ptr &&
skip_check(s, s->input_picture[0], s->next_picture_ptr)) {
// FIXME check that the gop check above is +-1 correct
av_frame_unref(s->input_picture[0]->f);
ff_vbv_update(s, 0);
goto no_output_pic;
}
}
if (/*s->picture_in_gop_number >= s->gop_size ||*/
!s->next_picture_ptr || s->intra_only) {
s->reordered_input_picture[0] = s->input_picture[0];
s->reordered_input_picture[0]->f->pict_type = AV_PICTURE_TYPE_I;
s->reordered_input_picture[0]->f->coded_picture_number =
s->coded_picture_number++;
} else {
int b_frames = 0;
if (s->avctx->flags & AV_CODEC_FLAG_PASS2) {
for (i = 0; i < s->max_b_frames + 1; i++) {
int pict_num = s->input_picture[0]->f->display_picture_number + i;
if (pict_num >= s->rc_context.num_entries)
break;
if (!s->input_picture[i]) {
s->rc_context.entry[pict_num - 1].new_pict_type = AV_PICTURE_TYPE_P;
break;
}
s->input_picture[i]->f->pict_type =
s->rc_context.entry[pict_num].new_pict_type;
}
}
if (s->b_frame_strategy == 0) {
b_frames = s->max_b_frames;
while (b_frames && !s->input_picture[b_frames])
b_frames--;
} else if (s->b_frame_strategy == 1) {
for (i = 1; i < s->max_b_frames + 1; i++) {
if (s->input_picture[i] &&
s->input_picture[i]->b_frame_score == 0) {
s->input_picture[i]->b_frame_score =
get_intra_count(s,
s->input_picture[i ]->f->data[0],
s->input_picture[i - 1]->f->data[0],
s->linesize) + 1;
}
}
for (i = 0; i < s->max_b_frames + 1; i++) {
if (!s->input_picture[i] ||
s->input_picture[i]->b_frame_score - 1 >
s->mb_num / s->b_sensitivity)
break;
}
b_frames = FFMAX(0, i - 1);
/* reset scores */
for (i = 0; i < b_frames + 1; i++) {
s->input_picture[i]->b_frame_score = 0;
}
} else if (s->b_frame_strategy == 2) {
b_frames = estimate_best_b_count(s);
if (b_frames < 0)
return b_frames;
}
emms_c();
for (i = b_frames - 1; i >= 0; i--) {
int type = s->input_picture[i]->f->pict_type;
if (type && type != AV_PICTURE_TYPE_B)
b_frames = i;
}
if (s->input_picture[b_frames]->f->pict_type == AV_PICTURE_TYPE_B &&
b_frames == s->max_b_frames) {
av_log(s->avctx, AV_LOG_ERROR,
"warning, too many B-frames in a row\n");
}
if (s->picture_in_gop_number + b_frames >= s->gop_size) {
if ((s->mpv_flags & FF_MPV_FLAG_STRICT_GOP) &&
s->gop_size > s->picture_in_gop_number) {
b_frames = s->gop_size - s->picture_in_gop_number - 1;
} else {
if (s->avctx->flags & AV_CODEC_FLAG_CLOSED_GOP)
b_frames = 0;
s->input_picture[b_frames]->f->pict_type = AV_PICTURE_TYPE_I;
}
}
if ((s->avctx->flags & AV_CODEC_FLAG_CLOSED_GOP) && b_frames &&
s->input_picture[b_frames]->f->pict_type == AV_PICTURE_TYPE_I)
b_frames--;
s->reordered_input_picture[0] = s->input_picture[b_frames];
if (s->reordered_input_picture[0]->f->pict_type != AV_PICTURE_TYPE_I)
s->reordered_input_picture[0]->f->pict_type = AV_PICTURE_TYPE_P;
s->reordered_input_picture[0]->f->coded_picture_number =
s->coded_picture_number++;
for (i = 0; i < b_frames; i++) {
s->reordered_input_picture[i + 1] = s->input_picture[i];
s->reordered_input_picture[i + 1]->f->pict_type =
AV_PICTURE_TYPE_B;
s->reordered_input_picture[i + 1]->f->coded_picture_number =
s->coded_picture_number++;
}
}
}
no_output_pic:
ff_mpeg_unref_picture(s->avctx, &s->new_picture);
if (s->reordered_input_picture[0]) {
s->reordered_input_picture[0]->reference =
s->reordered_input_picture[0]->f->pict_type !=
AV_PICTURE_TYPE_B ? 3 : 0;
if ((ret = ff_mpeg_ref_picture(s->avctx, &s->new_picture, s->reordered_input_picture[0])))
return ret;
if (s->reordered_input_picture[0]->shared || s->avctx->rc_buffer_size) {
// input is a shared pix, so we can't modify it -> allocate a new
// one & ensure that the shared one is reuseable
Picture *pic;
int i = ff_find_unused_picture(s->avctx, s->picture, 0);
if (i < 0)
return i;
pic = &s->picture[i];
pic->reference = s->reordered_input_picture[0]->reference;
if (alloc_picture(s, pic, 0) < 0) {
return -1;
}
ret = av_frame_copy_props(pic->f, s->reordered_input_picture[0]->f);
if (ret < 0)
return ret;
/* mark us unused / free shared pic */
av_frame_unref(s->reordered_input_picture[0]->f);
s->reordered_input_picture[0]->shared = 0;
s->current_picture_ptr = pic;
} else {
// input is not a shared pix -> reuse buffer for current_pix
s->current_picture_ptr = s->reordered_input_picture[0];
for (i = 0; i < 4; i++) {
s->new_picture.f->data[i] += INPLACE_OFFSET;
}
}
ff_mpeg_unref_picture(s->avctx, &s->current_picture);
if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
s->current_picture_ptr)) < 0)
return ret;
s->picture_number = s->new_picture.f->display_picture_number;
}
return 0;
}
static void frame_end(MpegEncContext *s)
{
if (s->unrestricted_mv &&
s->current_picture.reference &&
!s->intra_only) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
int hshift = desc->log2_chroma_w;
int vshift = desc->log2_chroma_h;
s->mpvencdsp.draw_edges(s->current_picture.f->data[0],
s->current_picture.f->linesize[0],
s->h_edge_pos, s->v_edge_pos,
EDGE_WIDTH, EDGE_WIDTH,
EDGE_TOP | EDGE_BOTTOM);
s->mpvencdsp.draw_edges(s->current_picture.f->data[1],
s->current_picture.f->linesize[1],
s->h_edge_pos >> hshift,
s->v_edge_pos >> vshift,
EDGE_WIDTH >> hshift,
EDGE_WIDTH >> vshift,
EDGE_TOP | EDGE_BOTTOM);
s->mpvencdsp.draw_edges(s->current_picture.f->data[2],
s->current_picture.f->linesize[2],
s->h_edge_pos >> hshift,
s->v_edge_pos >> vshift,
EDGE_WIDTH >> hshift,
EDGE_WIDTH >> vshift,
EDGE_TOP | EDGE_BOTTOM);
}
emms_c();
s->last_pict_type = s->pict_type;
s->last_lambda_for [s->pict_type] = s->current_picture_ptr->f->quality;
if (s->pict_type!= AV_PICTURE_TYPE_B)
s->last_non_b_pict_type = s->pict_type;
#if FF_API_CODED_FRAME
FF_DISABLE_DEPRECATION_WARNINGS
av_frame_unref(s->avctx->coded_frame);
av_frame_copy_props(s->avctx->coded_frame, s->current_picture.f);
FF_ENABLE_DEPRECATION_WARNINGS
#endif
#if FF_API_ERROR_FRAME
FF_DISABLE_DEPRECATION_WARNINGS
memcpy(s->current_picture.f->error, s->current_picture.encoding_error,
sizeof(s->current_picture.encoding_error));
FF_ENABLE_DEPRECATION_WARNINGS
#endif
}
static void update_noise_reduction(MpegEncContext *s)
{
int intra, i;
for (intra = 0; intra < 2; intra++) {
if (s->dct_count[intra] > (1 << 16)) {
for (i = 0; i < 64; i++) {
s->dct_error_sum[intra][i] >>= 1;
}
s->dct_count[intra] >>= 1;
}
for (i = 0; i < 64; i++) {
s->dct_offset[intra][i] = (s->noise_reduction *
s->dct_count[intra] +
s->dct_error_sum[intra][i] / 2) /
(s->dct_error_sum[intra][i] + 1);
}
}
}
static int frame_start(MpegEncContext *s)
{
int ret;
/* mark & release old frames */
if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
s->last_picture_ptr != s->next_picture_ptr &&
s->last_picture_ptr->f->buf[0]) {
ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
}
s->current_picture_ptr->f->pict_type = s->pict_type;
s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
ff_mpeg_unref_picture(s->avctx, &s->current_picture);
if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
s->current_picture_ptr)) < 0)
return ret;
if (s->pict_type != AV_PICTURE_TYPE_B) {
s->last_picture_ptr = s->next_picture_ptr;
if (!s->droppable)
s->next_picture_ptr = s->current_picture_ptr;
}
if (s->last_picture_ptr) {
ff_mpeg_unref_picture(s->avctx, &s->last_picture);
if (s->last_picture_ptr->f->buf[0] &&
(ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
s->last_picture_ptr)) < 0)
return ret;
}
if (s->next_picture_ptr) {
ff_mpeg_unref_picture(s->avctx, &s->next_picture);
if (s->next_picture_ptr->f->buf[0] &&
(ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
s->next_picture_ptr)) < 0)
return ret;
}
if (s->picture_structure!= PICT_FRAME) {
int i;
for (i = 0; i < 4; i++) {
if (s->picture_structure == PICT_BOTTOM_FIELD) {
s->current_picture.f->data[i] +=
s->current_picture.f->linesize[i];
}
s->current_picture.f->linesize[i] *= 2;
s->last_picture.f->linesize[i] *= 2;
s->next_picture.f->linesize[i] *= 2;
}
}
if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
} else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
} else {
s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
}
if (s->dct_error_sum) {
av_assert2(s->noise_reduction && s->encoding);
update_noise_reduction(s);
}
return 0;
}
int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *pic_arg, int *got_packet)
{
MpegEncContext *s = avctx->priv_data;
int i, stuffing_count, ret;
int context_count = s->slice_context_count;
s->vbv_ignore_qmax = 0;
s->picture_in_gop_number++;
if (load_input_picture(s, pic_arg) < 0)
return -1;
if (select_input_picture(s) < 0) {
return -1;
}
/* output? */
if (s->new_picture.f->data[0]) {
int growing_buffer = context_count == 1 && !pkt->data && !s->data_partitioning;
int pkt_size = growing_buffer ? FFMAX(s->mb_width*s->mb_height*64+10000, avctx->internal->byte_buffer_size) - AV_INPUT_BUFFER_PADDING_SIZE
:
s->mb_width*s->mb_height*(MAX_MB_BYTES+100)+10000;
if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size, 0)) < 0)
return ret;
if (s->mb_info) {
s->mb_info_ptr = av_packet_new_side_data(pkt,
AV_PKT_DATA_H263_MB_INFO,
s->mb_width*s->mb_height*12);
s->prev_mb_info = s->last_mb_info = s->mb_info_size = 0;
}
for (i = 0; i < context_count; i++) {
int start_y = s->thread_context[i]->start_mb_y;
int end_y = s->thread_context[i]-> end_mb_y;
int h = s->mb_height;
uint8_t *start = pkt->data + (size_t)(((int64_t) pkt->size) * start_y / h);
uint8_t *end = pkt->data + (size_t)(((int64_t) pkt->size) * end_y / h);
init_put_bits(&s->thread_context[i]->pb, start, end - start);
}
s->pict_type = s->new_picture.f->pict_type;
//emms_c();
ret = frame_start(s);
if (ret < 0)
return ret;
vbv_retry:
ret = encode_picture(s, s->picture_number);
if (growing_buffer) {
av_assert0(s->pb.buf == avctx->internal->byte_buffer);
pkt->data = s->pb.buf;
pkt->size = avctx->internal->byte_buffer_size;
}
if (ret < 0)
return -1;
#if FF_API_STAT_BITS
FF_DISABLE_DEPRECATION_WARNINGS
avctx->header_bits = s->header_bits;
avctx->mv_bits = s->mv_bits;
avctx->misc_bits = s->misc_bits;
avctx->i_tex_bits = s->i_tex_bits;
avctx->p_tex_bits = s->p_tex_bits;
avctx->i_count = s->i_count;
// FIXME f/b_count in avctx
avctx->p_count = s->mb_num - s->i_count - s->skip_count;
avctx->skip_count = s->skip_count;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
frame_end(s);
if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
ff_mjpeg_encode_picture_trailer(&s->pb, s->header_bits);
if (avctx->rc_buffer_size) {
RateControlContext *rcc = &s->rc_context;
int max_size = FFMAX(rcc->buffer_index * avctx->rc_max_available_vbv_use, rcc->buffer_index - 500);
int hq = (avctx->mb_decision == FF_MB_DECISION_RD || avctx->trellis);
int min_step = hq ? 1 : (1<<(FF_LAMBDA_SHIFT + 7))/139;
if (put_bits_count(&s->pb) > max_size &&
s->lambda < s->lmax) {
s->next_lambda = FFMAX(s->lambda + min_step, s->lambda *
(s->qscale + 1) / s->qscale);
if (s->adaptive_quant) {
int i;
for (i = 0; i < s->mb_height * s->mb_stride; i++)
s->lambda_table[i] =
FFMAX(s->lambda_table[i] + min_step,
s->lambda_table[i] * (s->qscale + 1) /
s->qscale);
}
s->mb_skipped = 0; // done in frame_start()
// done in encode_picture() so we must undo it
if (s->pict_type == AV_PICTURE_TYPE_P) {
if (s->flipflop_rounding ||
s->codec_id == AV_CODEC_ID_H263P ||
s->codec_id == AV_CODEC_ID_MPEG4)
s->no_rounding ^= 1;
}
if (s->pict_type != AV_PICTURE_TYPE_B) {
s->time_base = s->last_time_base;
s->last_non_b_time = s->time - s->pp_time;
}
for (i = 0; i < context_count; i++) {
PutBitContext *pb = &s->thread_context[i]->pb;
init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
}
s->vbv_ignore_qmax = 1;
av_log(avctx, AV_LOG_VERBOSE, "reencoding frame due to VBV\n");
goto vbv_retry;
}
av_assert0(avctx->rc_max_rate);
}
if (avctx->flags & AV_CODEC_FLAG_PASS1)
ff_write_pass1_stats(s);
for (i = 0; i < 4; i++) {
s->current_picture_ptr->encoding_error[i] = s->current_picture.encoding_error[i];
avctx->error[i] += s->current_picture_ptr->encoding_error[i];
}
ff_side_data_set_encoder_stats(pkt, s->current_picture.f->quality,
s->current_picture_ptr->encoding_error,
(avctx->flags&AV_CODEC_FLAG_PSNR) ? 4 : 0,
s->pict_type);
if (avctx->flags & AV_CODEC_FLAG_PASS1)
assert(put_bits_count(&s->pb) == s->header_bits + s->mv_bits +
s->misc_bits + s->i_tex_bits +
s->p_tex_bits);
flush_put_bits(&s->pb);
s->frame_bits = put_bits_count(&s->pb);
stuffing_count = ff_vbv_update(s, s->frame_bits);
s->stuffing_bits = 8*stuffing_count;
if (stuffing_count) {
if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) <
stuffing_count + 50) {
av_log(avctx, AV_LOG_ERROR, "stuffing too large\n");
return -1;
}
switch (s->codec_id) {
case AV_CODEC_ID_MPEG1VIDEO:
case AV_CODEC_ID_MPEG2VIDEO:
while (stuffing_count--) {
put_bits(&s->pb, 8, 0);
}
break;
case AV_CODEC_ID_MPEG4:
put_bits(&s->pb, 16, 0);
put_bits(&s->pb, 16, 0x1C3);
stuffing_count -= 4;
while (stuffing_count--) {
put_bits(&s->pb, 8, 0xFF);
}
break;
default:
av_log(avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
}
flush_put_bits(&s->pb);
s->frame_bits = put_bits_count(&s->pb);
}
/* update MPEG-1/2 vbv_delay for CBR */
if (avctx->rc_max_rate &&
avctx->rc_min_rate == avctx->rc_max_rate &&
s->out_format == FMT_MPEG1 &&
90000LL * (avctx->rc_buffer_size - 1) <=
avctx->rc_max_rate * 0xFFFFLL) {
AVCPBProperties *props;
size_t props_size;
int vbv_delay, min_delay;
double inbits = avctx->rc_max_rate *
av_q2d(avctx->time_base);
int minbits = s->frame_bits - 8 *
(s->vbv_delay_ptr - s->pb.buf - 1);
double bits = s->rc_context.buffer_index + minbits - inbits;
if (bits < 0)
av_log(avctx, AV_LOG_ERROR,
"Internal error, negative bits\n");
av_assert1(s->repeat_first_field == 0);
vbv_delay = bits * 90000 / avctx->rc_max_rate;
min_delay = (minbits * 90000LL + avctx->rc_max_rate - 1) /
avctx->rc_max_rate;
vbv_delay = FFMAX(vbv_delay, min_delay);
av_assert0(vbv_delay < 0xFFFF);
s->vbv_delay_ptr[0] &= 0xF8;
s->vbv_delay_ptr[0] |= vbv_delay >> 13;
s->vbv_delay_ptr[1] = vbv_delay >> 5;
s->vbv_delay_ptr[2] &= 0x07;
s->vbv_delay_ptr[2] |= vbv_delay << 3;
props = av_cpb_properties_alloc(&props_size);
if (!props)
return AVERROR(ENOMEM);
props->vbv_delay = vbv_delay * 300;
ret = av_packet_add_side_data(pkt, AV_PKT_DATA_CPB_PROPERTIES,
(uint8_t*)props, props_size);
if (ret < 0) {
av_freep(&props);
return ret;
}
#if FF_API_VBV_DELAY
FF_DISABLE_DEPRECATION_WARNINGS
avctx->vbv_delay = vbv_delay * 300;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
}
s->total_bits += s->frame_bits;
#if FF_API_STAT_BITS
FF_DISABLE_DEPRECATION_WARNINGS
avctx->frame_bits = s->frame_bits;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
pkt->pts = s->current_picture.f->pts;
if (!s->low_delay && s->pict_type != AV_PICTURE_TYPE_B) {
if (!s->current_picture.f->coded_picture_number)
pkt->dts = pkt->pts - s->dts_delta;
else
pkt->dts = s->reordered_pts;
s->reordered_pts = pkt->pts;
} else
pkt->dts = pkt->pts;
if (s->current_picture.f->key_frame)
pkt->flags |= AV_PKT_FLAG_KEY;
if (s->mb_info)
av_packet_shrink_side_data(pkt, AV_PKT_DATA_H263_MB_INFO, s->mb_info_size);
} else {
s->frame_bits = 0;
}
/* release non-reference frames */
for (i = 0; i < MAX_PICTURE_COUNT; i++) {
if (!s->picture[i].reference)
ff_mpeg_unref_picture(avctx, &s->picture[i]);
}
av_assert1((s->frame_bits & 7) == 0);
pkt->size = s->frame_bits / 8;
*got_packet = !!pkt->size;
return 0;
}
static inline void dct_single_coeff_elimination(MpegEncContext *s,
int n, int threshold)
{
static const char tab[64] = {
3, 2, 2, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0
};
int score = 0;
int run = 0;
int i;
int16_t *block = s->block[n];
const int last_index = s->block_last_index[n];
int skip_dc;
if (threshold < 0) {
skip_dc = 0;
threshold = -threshold;
} else
skip_dc = 1;
/* Are all we could set to zero already zero? */
if (last_index <= skip_dc - 1)
return;
for (i = 0; i <= last_index; i++) {
const int j = s->intra_scantable.permutated[i];
const int level = FFABS(block[j]);
if (level == 1) {
if (skip_dc && i == 0)
continue;
score += tab[run];
run = 0;
} else if (level > 1) {
return;
} else {
run++;
}
}
if (score >= threshold)
return;
for (i = skip_dc; i <= last_index; i++) {
const int j = s->intra_scantable.permutated[i];
block[j] = 0;
}
if (block[0])
s->block_last_index[n] = 0;
else
s->block_last_index[n] = -1;
}
static inline void clip_coeffs(MpegEncContext *s, int16_t *block,
int last_index)
{
int i;
const int maxlevel = s->max_qcoeff;
const int minlevel = s->min_qcoeff;
int overflow = 0;
if (s->mb_intra) {
i = 1; // skip clipping of intra dc
} else
i = 0;
for (; i <= last_index; i++) {
const int j = s->intra_scantable.permutated[i];
int level = block[j];
if (level > maxlevel) {
level = maxlevel;
overflow++;
} else if (level < minlevel) {
level = minlevel;
overflow++;
}
block[j] = level;
}
if (overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
av_log(s->avctx, AV_LOG_INFO,
"warning, clipping %d dct coefficients to %d..%d\n",
overflow, minlevel, maxlevel);
}
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride)
{
int x, y;
// FIXME optimize
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++) {
int x2, y2;
int sum = 0;
int sqr = 0;
int count = 0;
for (y2 = FFMAX(y - 1, 0); y2 < FFMIN(8, y + 2); y2++) {
for (x2= FFMAX(x - 1, 0); x2 < FFMIN(8, x + 2); x2++) {
int v = ptr[x2 + y2 * stride];
sum += v;
sqr += v * v;
count++;
}
}
weight[x + 8 * y]= (36 * ff_sqrt(count * sqr - sum * sum)) / count;
}
}
}
static av_always_inline void encode_mb_internal(MpegEncContext *s,
int motion_x, int motion_y,
int mb_block_height,
int mb_block_width,
int mb_block_count)
{
int16_t weight[12][64];
int16_t orig[12][64];
const int mb_x = s->mb_x;
const int mb_y = s->mb_y;
int i;
int skip_dct[12];
int dct_offset = s->linesize * 8; // default for progressive frames
int uv_dct_offset = s->uvlinesize * 8;
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
ptrdiff_t wrap_y, wrap_c;
for (i = 0; i < mb_block_count; i++)
skip_dct[i] = s->skipdct;
if (s->adaptive_quant) {
const int last_qp = s->qscale;
const int mb_xy = mb_x + mb_y * s->mb_stride;
s->lambda = s->lambda_table[mb_xy];
update_qscale(s);
if (!(s->mpv_flags & FF_MPV_FLAG_QP_RD)) {
s->qscale = s->current_picture_ptr->qscale_table[mb_xy];
s->dquant = s->qscale - last_qp;
if (s->out_format == FMT_H263) {
s->dquant = av_clip(s->dquant, -2, 2);
if (s->codec_id == AV_CODEC_ID_MPEG4) {
if (!s->mb_intra) {
if (s->pict_type == AV_PICTURE_TYPE_B) {
if (s->dquant & 1 || s->mv_dir & MV_DIRECT)
s->dquant = 0;
}
if (s->mv_type == MV_TYPE_8X8)
s->dquant = 0;
}
}
}
}
ff_set_qscale(s, last_qp + s->dquant);
} else if (s->mpv_flags & FF_MPV_FLAG_QP_RD)
ff_set_qscale(s, s->qscale + s->dquant);
wrap_y = s->linesize;
wrap_c = s->uvlinesize;
ptr_y = s->new_picture.f->data[0] +
(mb_y * 16 * wrap_y) + mb_x * 16;
ptr_cb = s->new_picture.f->data[1] +
(mb_y * mb_block_height * wrap_c) + mb_x * mb_block_width;
ptr_cr = s->new_picture.f->data[2] +
(mb_y * mb_block_height * wrap_c) + mb_x * mb_block_width;
if((mb_x * 16 + 16 > s->width || mb_y * 16 + 16 > s->height) && s->codec_id != AV_CODEC_ID_AMV){
uint8_t *ebuf = s->sc.edge_emu_buffer + 38 * wrap_y;
int cw = (s->width + s->chroma_x_shift) >> s->chroma_x_shift;
int ch = (s->height + s->chroma_y_shift) >> s->chroma_y_shift;
s->vdsp.emulated_edge_mc(ebuf, ptr_y,
wrap_y, wrap_y,
16, 16, mb_x * 16, mb_y * 16,
s->width, s->height);
ptr_y = ebuf;
s->vdsp.emulated_edge_mc(ebuf + 16 * wrap_y, ptr_cb,
wrap_c, wrap_c,
mb_block_width, mb_block_height,
mb_x * mb_block_width, mb_y * mb_block_height,
cw, ch);
ptr_cb = ebuf + 16 * wrap_y;
s->vdsp.emulated_edge_mc(ebuf + 16 * wrap_y + 16, ptr_cr,
wrap_c, wrap_c,
mb_block_width, mb_block_height,
mb_x * mb_block_width, mb_y * mb_block_height,
cw, ch);
ptr_cr = ebuf + 16 * wrap_y + 16;
}
if (s->mb_intra) {
if (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) {
int progressive_score, interlaced_score;
s->interlaced_dct = 0;
progressive_score = s->mecc.ildct_cmp[4](s, ptr_y, NULL, wrap_y, 8) +
s->mecc.ildct_cmp[4](s, ptr_y + wrap_y * 8,
NULL, wrap_y, 8) - 400;
if (progressive_score > 0) {
interlaced_score = s->mecc.ildct_cmp[4](s, ptr_y,
NULL, wrap_y * 2, 8) +
s->mecc.ildct_cmp[4](s, ptr_y + wrap_y,
NULL, wrap_y * 2, 8);
if (progressive_score > interlaced_score) {
s->interlaced_dct = 1;
dct_offset = wrap_y;
uv_dct_offset = wrap_c;
wrap_y <<= 1;
if (s->chroma_format == CHROMA_422 ||
s->chroma_format == CHROMA_444)
wrap_c <<= 1;
}
}
}
s->pdsp.get_pixels(s->block[0], ptr_y, wrap_y);
s->pdsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
s->pdsp.get_pixels(s->block[2], ptr_y + dct_offset, wrap_y);
s->pdsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
if (s->avctx->flags & AV_CODEC_FLAG_GRAY) {
skip_dct[4] = 1;
skip_dct[5] = 1;
} else {
s->pdsp.get_pixels(s->block[4], ptr_cb, wrap_c);
s->pdsp.get_pixels(s->block[5], ptr_cr, wrap_c);
if (!s->chroma_y_shift && s->chroma_x_shift) { /* 422 */
s->pdsp.get_pixels(s->block[6], ptr_cb + uv_dct_offset, wrap_c);
s->pdsp.get_pixels(s->block[7], ptr_cr + uv_dct_offset, wrap_c);
} else if (!s->chroma_y_shift && !s->chroma_x_shift) { /* 444 */
s->pdsp.get_pixels(s->block[ 6], ptr_cb + 8, wrap_c);
s->pdsp.get_pixels(s->block[ 7], ptr_cr + 8, wrap_c);
s->pdsp.get_pixels(s->block[ 8], ptr_cb + uv_dct_offset, wrap_c);
s->pdsp.get_pixels(s->block[ 9], ptr_cr + uv_dct_offset, wrap_c);
s->pdsp.get_pixels(s->block[10], ptr_cb + uv_dct_offset + 8, wrap_c);
s->pdsp.get_pixels(s->block[11], ptr_cr + uv_dct_offset + 8, wrap_c);
}
}
} else {
op_pixels_func (*op_pix)[4];
qpel_mc_func (*op_qpix)[16];
uint8_t *dest_y, *dest_cb, *dest_cr;
dest_y = s->dest[0];
dest_cb = s->dest[1];
dest_cr = s->dest[2];
if ((!s->no_rounding) || s->pict_type == AV_PICTURE_TYPE_B) {
op_pix = s->hdsp.put_pixels_tab;
op_qpix = s->qdsp.put_qpel_pixels_tab;
} else {
op_pix = s->hdsp.put_no_rnd_pixels_tab;
op_qpix = s->qdsp.put_no_rnd_qpel_pixels_tab;
}
if (s->mv_dir & MV_DIR_FORWARD) {
ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0,
s->last_picture.f->data,
op_pix, op_qpix);
op_pix = s->hdsp.avg_pixels_tab;
op_qpix = s->qdsp.avg_qpel_pixels_tab;
}
if (s->mv_dir & MV_DIR_BACKWARD) {
ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1,
s->next_picture.f->data,
op_pix, op_qpix);
}
if (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) {
int progressive_score, interlaced_score;
s->interlaced_dct = 0;
progressive_score = s->mecc.ildct_cmp[0](s, dest_y, ptr_y, wrap_y, 8) +
s->mecc.ildct_cmp[0](s, dest_y + wrap_y * 8,
ptr_y + wrap_y * 8,
wrap_y, 8) - 400;
if (s->avctx->ildct_cmp == FF_CMP_VSSE)
progressive_score -= 400;
if (progressive_score > 0) {
interlaced_score = s->mecc.ildct_cmp[0](s, dest_y, ptr_y,
wrap_y * 2, 8) +
s->mecc.ildct_cmp[0](s, dest_y + wrap_y,
ptr_y + wrap_y,
wrap_y * 2, 8);
if (progressive_score > interlaced_score) {
s->interlaced_dct = 1;
dct_offset = wrap_y;
uv_dct_offset = wrap_c;
wrap_y <<= 1;
if (s->chroma_format == CHROMA_422)
wrap_c <<= 1;
}
}
}
s->pdsp.diff_pixels(s->block[0], ptr_y, dest_y, wrap_y);
s->pdsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
s->pdsp.diff_pixels(s->block[2], ptr_y + dct_offset,
dest_y + dct_offset, wrap_y);
s->pdsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8,
dest_y + dct_offset + 8, wrap_y);
if (s->avctx->flags & AV_CODEC_FLAG_GRAY) {
skip_dct[4] = 1;
skip_dct[5] = 1;
} else {
s->pdsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
s->pdsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
if (!s->chroma_y_shift) { /* 422 */
s->pdsp.diff_pixels(s->block[6], ptr_cb + uv_dct_offset,
dest_cb + uv_dct_offset, wrap_c);
s->pdsp.diff_pixels(s->block[7], ptr_cr + uv_dct_offset,
dest_cr + uv_dct_offset, wrap_c);
}
}
/* pre quantization */
if (s->current_picture.mc_mb_var[s->mb_stride * mb_y + mb_x] <
2 * s->qscale * s->qscale) {
// FIXME optimize
if (s->mecc.sad[1](NULL, ptr_y, dest_y, wrap_y, 8) < 20 * s->qscale)
skip_dct[0] = 1;
if (s->mecc.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20 * s->qscale)
skip_dct[1] = 1;
if (s->mecc.sad[1](NULL, ptr_y + dct_offset, dest_y + dct_offset,
wrap_y, 8) < 20 * s->qscale)
skip_dct[2] = 1;
if (s->mecc.sad[1](NULL, ptr_y + dct_offset + 8, dest_y + dct_offset + 8,
wrap_y, 8) < 20 * s->qscale)
skip_dct[3] = 1;
if (s->mecc.sad[1](NULL, ptr_cb, dest_cb, wrap_c, 8) < 20 * s->qscale)
skip_dct[4] = 1;
if (s->mecc.sad[1](NULL, ptr_cr, dest_cr, wrap_c, 8) < 20 * s->qscale)
skip_dct[5] = 1;
if (!s->chroma_y_shift) { /* 422 */
if (s->mecc.sad[1](NULL, ptr_cb + uv_dct_offset,
dest_cb + uv_dct_offset,
wrap_c, 8) < 20 * s->qscale)
skip_dct[6] = 1;
if (s->mecc.sad[1](NULL, ptr_cr + uv_dct_offset,
dest_cr + uv_dct_offset,
wrap_c, 8) < 20 * s->qscale)
skip_dct[7] = 1;
}
}
}
if (s->quantizer_noise_shaping) {
if (!skip_dct[0])
get_visual_weight(weight[0], ptr_y , wrap_y);
if (!skip_dct[1])
get_visual_weight(weight[1], ptr_y + 8, wrap_y);
if (!skip_dct[2])
get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
if (!skip_dct[3])
get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
if (!skip_dct[4])
get_visual_weight(weight[4], ptr_cb , wrap_c);
if (!skip_dct[5])
get_visual_weight(weight[5], ptr_cr , wrap_c);
if (!s->chroma_y_shift) { /* 422 */
if (!skip_dct[6])
get_visual_weight(weight[6], ptr_cb + uv_dct_offset,
wrap_c);
if (!skip_dct[7])
get_visual_weight(weight[7], ptr_cr + uv_dct_offset,
wrap_c);
}
memcpy(orig[0], s->block[0], sizeof(int16_t) * 64 * mb_block_count);
}
/* DCT & quantize */
av_assert2(s->out_format != FMT_MJPEG || s->qscale == 8);
{
for (i = 0; i < mb_block_count; i++) {
if (!skip_dct[i]) {
int overflow;
s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
// FIXME we could decide to change to quantizer instead of
// clipping
// JS: I don't think that would be a good idea it could lower
// quality instead of improve it. Just INTRADC clipping
// deserves changes in quantizer
if (overflow)
clip_coeffs(s, s->block[i], s->block_last_index[i]);
} else
s->block_last_index[i] = -1;
}
if (s->quantizer_noise_shaping) {
for (i = 0; i < mb_block_count; i++) {
if (!skip_dct[i]) {
s->block_last_index[i] =
dct_quantize_refine(s, s->block[i], weight[i],
orig[i], i, s->qscale);
}
}
}
if (s->luma_elim_threshold && !s->mb_intra)
for (i = 0; i < 4; i++)
dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
if (s->chroma_elim_threshold && !s->mb_intra)
for (i = 4; i < mb_block_count; i++)
dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
if (s->mpv_flags & FF_MPV_FLAG_CBP_RD) {
for (i = 0; i < mb_block_count; i++) {
if (s->block_last_index[i] == -1)
s->coded_score[i] = INT_MAX / 256;
}
}
}
if ((s->avctx->flags & AV_CODEC_FLAG_GRAY) && s->mb_intra) {
s->block_last_index[4] =
s->block_last_index[5] = 0;
s->block[4][0] =
s->block[5][0] = (1024 + s->c_dc_scale / 2) / s->c_dc_scale;
if (!s->chroma_y_shift) { /* 422 / 444 */
for (i=6; i<12; i++) {
s->block_last_index[i] = 0;
s->block[i][0] = s->block[4][0];
}
}
}
// non c quantize code returns incorrect block_last_index FIXME
if (s->alternate_scan && s->dct_quantize != ff_dct_quantize_c) {
for (i = 0; i < mb_block_count; i++) {
int j;
if (s->block_last_index[i] > 0) {
for (j = 63; j > 0; j--) {
if (s->block[i][s->intra_scantable.permutated[j]])
break;
}
s->block_last_index[i] = j;
}
}
}
/* huffman encode */
switch(s->codec_id){ //FIXME funct ptr could be slightly faster
case AV_CODEC_ID_MPEG1VIDEO:
case AV_CODEC_ID_MPEG2VIDEO:
if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
ff_mpeg1_encode_mb(s, s->block, motion_x, motion_y);
break;
case AV_CODEC_ID_MPEG4:
if (CONFIG_MPEG4_ENCODER)
ff_mpeg4_encode_mb(s, s->block, motion_x, motion_y);
break;
case AV_CODEC_ID_MSMPEG4V2: