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https://gitee.com/openharmony/third_party_ffmpeg
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DNxHD (SMPTE VC-3) encoder
Originally committed as revision 10682 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier
parent
69cea75f6b
commit
fc4cbc1699
@ -97,6 +97,7 @@ version <next>
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- Monkey's Audio demuxer and decoder
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- additional SPARC (VIS) optimizations
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- AMV audio and video decoder
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- DNxHD encoder
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version 0.4.9-pre1:
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@ -118,7 +118,7 @@ Codecs:
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cook.c, cookdata.h Benjamin Larsson
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cscd.c Reimar Doeffinger
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dca.c Kostya Shishkov
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dnxhddec.c Baptiste Coudurier
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dnxhd* Baptiste Coudurier
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dpcm.c Mike Melanson
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dxa.c Kostya Shishkov
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dv.c Roman Shaposhnik
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@ -226,7 +226,7 @@ following image formats are supported:
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@item Cin Video @tab @tab X @tab Codec used in Delphine Software games.
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@item Tiertex Seq Video @tab @tab X @tab Codec used in DOS CDROM FlashBack game.
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@item DXA Video @tab @tab X @tab Codec originally used in Feeble Files game.
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@item AVID DNxHD @tab @tab X @tab aka SMPTE VC3
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@item AVID DNxHD @tab X @tab X @tab aka SMPTE VC3
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@item C93 Video @tab @tab X @tab Codec used in Cyberia game.
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@item THP @tab @tab X @tab Used on the Nintendo GameCube.
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@item Bethsoft VID @tab @tab X @tab Used in some games from Bethesda Softworks.
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@ -56,6 +56,7 @@ OBJS-$(CONFIG_CSCD_DECODER) += cscd.o
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OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o
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OBJS-$(CONFIG_DCA_DECODER) += dca.o
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OBJS-$(CONFIG_DNXHD_DECODER) += dnxhddec.o dnxhddata.o
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OBJS-$(CONFIG_DNXHD_ENCODER) += dnxhdenc.o dnxhddata.o
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OBJS-$(CONFIG_DSICINVIDEO_DECODER) += dsicinav.o
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OBJS-$(CONFIG_DSICINAUDIO_DECODER) += dsicinav.o
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OBJS-$(CONFIG_DVBSUB_DECODER) += dvbsubdec.o
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@ -73,7 +73,7 @@ void avcodec_register_all(void)
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REGISTER_DECODER (CLJR, cljr);
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REGISTER_DECODER (CSCD, cscd);
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REGISTER_DECODER (CYUV, cyuv);
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REGISTER_DECODER (DNXHD, dnxhd);
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REGISTER_ENCDEC (DNXHD, dnxhd);
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REGISTER_DECODER (DSICINVIDEO, dsicinvideo);
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REGISTER_ENCDEC (DVVIDEO, dvvideo);
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REGISTER_DECODER (DXA, dxa);
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@ -33,8 +33,8 @@
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#define AV_STRINGIFY(s) AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_VERSION_INT ((51<<16)+(44<<8)+0)
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#define LIBAVCODEC_VERSION 51.44.0
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#define LIBAVCODEC_VERSION_INT ((51<<16)+(45<<8)+0)
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#define LIBAVCODEC_VERSION 51.45.0
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#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
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#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
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845
libavcodec/dnxhdenc.c
Normal file
845
libavcodec/dnxhdenc.c
Normal file
@ -0,0 +1,845 @@
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/*
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* VC3/DNxHD encoder
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* Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
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*
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* VC-3 encoder funded by the British Broadcasting Corporation
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//#define DEBUG
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#define RC_VARIANCE 1 // use variance or ssd for fast rc
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#include "avcodec.h"
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#include "dsputil.h"
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#include "mpegvideo.h"
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#include "dnxhddata.h"
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typedef struct {
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uint16_t mb;
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int value;
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} RCCMPEntry;
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typedef struct {
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int ssd;
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int bits;
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} RCEntry;
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int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
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typedef struct DNXHDEncContext {
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MpegEncContext m; ///< Used for quantization dsp functions
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AVFrame frame;
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int cid;
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const CIDEntry *cid_table;
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uint8_t *msip; ///< Macroblock Scan Indices Payload
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uint32_t *slice_size;
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struct DNXHDEncContext *thread[MAX_THREADS];
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unsigned dct_y_offset;
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unsigned dct_uv_offset;
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int interlaced;
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int cur_field;
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DECLARE_ALIGNED_16(DCTELEM, blocks[8][64]);
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int (*qmatrix_c) [64];
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int (*qmatrix_l) [64];
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uint16_t (*qmatrix_l16)[2][64];
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uint16_t (*qmatrix_c16)[2][64];
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unsigned frame_bits;
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uint8_t *src[3];
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uint16_t *table_vlc_codes;
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uint8_t *table_vlc_bits;
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uint16_t *table_run_codes;
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uint8_t *table_run_bits;
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/** Rate control */
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unsigned slice_bits;
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unsigned qscale;
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unsigned lambda;
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unsigned thread_size;
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uint16_t *mb_bits;
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uint8_t *mb_qscale;
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RCCMPEntry *mb_cmp;
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RCEntry (*mb_rc)[8160];
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} DNXHDEncContext;
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#define LAMBDA_FRAC_BITS 10
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static int dnxhd_init_vlc(DNXHDEncContext *ctx)
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{
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int i;
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CHECKED_ALLOCZ(ctx->table_vlc_codes, 449*2);
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CHECKED_ALLOCZ(ctx->table_vlc_bits, 449);
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CHECKED_ALLOCZ(ctx->table_run_codes, 63*2);
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CHECKED_ALLOCZ(ctx->table_run_bits, 63);
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for (i = 0; i < 257; i++) {
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int level = ctx->cid_table->ac_level[i] +
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(ctx->cid_table->ac_run_flag[i] << 7) + (ctx->cid_table->ac_index_flag[i] << 8);
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assert(level < 449);
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if (ctx->cid_table->ac_level[i] == 64 && ctx->cid_table->ac_index_flag[i])
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level -= 64; // use 0+(1<<8) level
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ctx->table_vlc_codes[level] = ctx->cid_table->ac_codes[i];
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ctx->table_vlc_bits [level] = ctx->cid_table->ac_bits[i];
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}
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for (i = 0; i < 62; i++) {
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int run = ctx->cid_table->run[i];
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assert(run < 63);
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ctx->table_run_codes[run] = ctx->cid_table->run_codes[i];
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ctx->table_run_bits [run] = ctx->cid_table->run_bits[i];
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}
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return 0;
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fail:
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return -1;
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}
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static int dnxhd_init_qmat(DNXHDEncContext *ctx, int lbias, int cbias)
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{
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// init first elem to 1 to avoid div by 0 in convert_matrix
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uint16_t weight_matrix[64] = {1,}; // convert_matrix needs uint16_t*
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int qscale, i;
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CHECKED_ALLOCZ(ctx->qmatrix_l, (ctx->m.avctx->qmax+1) * 64 * sizeof(int));
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CHECKED_ALLOCZ(ctx->qmatrix_c, (ctx->m.avctx->qmax+1) * 64 * sizeof(int));
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CHECKED_ALLOCZ(ctx->qmatrix_l16, (ctx->m.avctx->qmax+1) * 64 * 2 * sizeof(uint16_t));
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CHECKED_ALLOCZ(ctx->qmatrix_c16, (ctx->m.avctx->qmax+1) * 64 * 2 * sizeof(uint16_t));
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for (i = 1; i < 64; i++) {
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int j = ctx->m.dsp.idct_permutation[ff_zigzag_direct[i]];
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weight_matrix[j] = ctx->cid_table->luma_weigth[i];
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}
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ff_convert_matrix(&ctx->m.dsp, ctx->qmatrix_l, ctx->qmatrix_l16, weight_matrix,
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ctx->m.intra_quant_bias, 1, ctx->m.avctx->qmax, 1);
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for (i = 1; i < 64; i++) {
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int j = ctx->m.dsp.idct_permutation[ff_zigzag_direct[i]];
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weight_matrix[j] = ctx->cid_table->chroma_weigth[i];
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}
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ff_convert_matrix(&ctx->m.dsp, ctx->qmatrix_c, ctx->qmatrix_c16, weight_matrix,
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ctx->m.intra_quant_bias, 1, ctx->m.avctx->qmax, 1);
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for (qscale = 1; qscale <= ctx->m.avctx->qmax; qscale++) {
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for (i = 0; i < 64; i++) {
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ctx->qmatrix_l [qscale] [i] <<= 2; ctx->qmatrix_c [qscale] [i] <<= 2;
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ctx->qmatrix_l16[qscale][0][i] <<= 2; ctx->qmatrix_l16[qscale][1][i] <<= 2;
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ctx->qmatrix_c16[qscale][0][i] <<= 2; ctx->qmatrix_c16[qscale][1][i] <<= 2;
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}
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}
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return 0;
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fail:
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return -1;
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}
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static int dnxhd_init_rc(DNXHDEncContext *ctx)
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{
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CHECKED_ALLOCZ(ctx->mb_rc, 8160*ctx->m.avctx->qmax*sizeof(RCEntry));
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if (ctx->m.avctx->mb_decision != FF_MB_DECISION_RD)
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CHECKED_ALLOCZ(ctx->mb_cmp, ctx->m.mb_num*sizeof(RCCMPEntry));
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ctx->frame_bits = (ctx->cid_table->coding_unit_size - 640 - 4) * 8;
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ctx->qscale = 1;
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ctx->lambda = 2<<LAMBDA_FRAC_BITS; // qscale 2
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return 0;
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fail:
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return -1;
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}
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static int dnxhd_encode_init(AVCodecContext *avctx)
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{
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DNXHDEncContext *ctx = avctx->priv_data;
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int i, index;
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if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) {
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if (avctx->bit_rate == 120000000)
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ctx->cid = 1242;
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else if (avctx->bit_rate == 185000000)
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ctx->cid = 1243;
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} else {
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if (avctx->bit_rate == 120000000)
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ctx->cid = 1237;
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else if (avctx->bit_rate == 185000000)
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ctx->cid = 1238;
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}
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if (!ctx->cid || avctx->width != 1920 || avctx->height != 1080 || avctx->pix_fmt != PIX_FMT_YUV422P) {
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av_log(avctx, AV_LOG_ERROR, "video parameters incompatible with DNxHD\n");
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return -1;
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}
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index = ff_dnxhd_get_cid_table(ctx->cid);
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ctx->cid_table = &ff_dnxhd_cid_table[index];
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ctx->m.avctx = avctx;
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ctx->m.mb_intra = 1;
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ctx->m.h263_aic = 1;
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dsputil_init(&ctx->m.dsp, avctx);
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ff_dct_common_init(&ctx->m);
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if (!ctx->m.dct_quantize)
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ctx->m.dct_quantize = dct_quantize_c;
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ctx->m.mb_height = (avctx->height + 15) / 16;
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ctx->m.mb_width = (avctx->width + 15) / 16;
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if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) {
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ctx->interlaced = 1;
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ctx->m.mb_height /= 2;
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}
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ctx->m.mb_num = ctx->m.mb_height * ctx->m.mb_width;
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if (avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
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ctx->m.intra_quant_bias = avctx->intra_quant_bias;
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if (dnxhd_init_qmat(ctx, ctx->m.intra_quant_bias, 0) < 0) // XXX tune lbias/cbias
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return -1;
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if (dnxhd_init_vlc(ctx) < 0)
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return -1;
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if (dnxhd_init_rc(ctx) < 0)
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return -1;
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CHECKED_ALLOCZ(ctx->slice_size, ctx->m.mb_height*sizeof(uint32_t));
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CHECKED_ALLOCZ(ctx->mb_bits, ctx->m.mb_num *sizeof(uint16_t));
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CHECKED_ALLOCZ(ctx->mb_qscale, ctx->m.mb_num *sizeof(uint8_t));
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ctx->frame.key_frame = 1;
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ctx->frame.pict_type = FF_I_TYPE;
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ctx->m.avctx->coded_frame = &ctx->frame;
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if (avctx->thread_count > MAX_THREADS || (avctx->thread_count > ctx->m.mb_height)) {
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av_log(avctx, AV_LOG_ERROR, "too many threads\n");
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return -1;
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}
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ctx->thread[0] = ctx;
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for (i = 1; i < avctx->thread_count; i++) {
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ctx->thread[i] = av_malloc(sizeof(DNXHDEncContext));
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memcpy(ctx->thread[i], ctx, sizeof(DNXHDEncContext));
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}
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for (i = 0; i < avctx->thread_count; i++) {
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ctx->thread[i]->m.start_mb_y = (ctx->m.mb_height*(i ) + avctx->thread_count/2) / avctx->thread_count;
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ctx->thread[i]->m.end_mb_y = (ctx->m.mb_height*(i+1) + avctx->thread_count/2) / avctx->thread_count;
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}
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return 0;
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fail: //for CHECKED_ALLOCZ
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return -1;
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}
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static int dnxhd_write_header(AVCodecContext *avctx, uint8_t *buf)
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{
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DNXHDEncContext *ctx = avctx->priv_data;
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const uint8_t header_prefix[5] = { 0x00,0x00,0x02,0x80,0x01 };
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memcpy(buf, header_prefix, 5);
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buf[5] = ctx->interlaced ? ctx->cur_field+2 : 0x01;
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buf[6] = 0x80; // crc flag off
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buf[7] = 0xa0; // reserved
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AV_WB16(buf + 0x18, avctx->height); // ALPF
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AV_WB16(buf + 0x1a, avctx->width); // SPL
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AV_WB16(buf + 0x1d, avctx->height); // NAL
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buf[0x21] = 0x38; // FIXME 8 bit per comp
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buf[0x22] = 0x88 + (ctx->frame.interlaced_frame<<2);
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AV_WB32(buf + 0x28, ctx->cid); // CID
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buf[0x2c] = ctx->interlaced ? 0 : 0x80;
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buf[0x5f] = 0x01; // UDL
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buf[0x167] = 0x02; // reserved
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AV_WB16(buf + 0x16a, ctx->m.mb_height * 4 + 4); // MSIPS
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buf[0x16d] = ctx->m.mb_height; // Ns
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buf[0x16f] = 0x10; // reserved
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ctx->msip = buf + 0x170;
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return 0;
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}
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static av_always_inline void dnxhd_encode_dc(DNXHDEncContext *ctx, int diff)
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{
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int nbits;
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if (diff < 0) {
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nbits = av_log2_16bit(-2*diff);
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diff--;
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} else {
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nbits = av_log2_16bit(2*diff);
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}
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put_bits(&ctx->m.pb, ctx->cid_table->dc_bits[nbits] + nbits,
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(ctx->cid_table->dc_codes[nbits]<<nbits) + (diff & ((1 << nbits) - 1)));
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}
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static av_always_inline void dnxhd_encode_block(DNXHDEncContext *ctx, DCTELEM *block, int last_index, int n)
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{
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int last_non_zero = 0;
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int offset = 0;
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int slevel, i, j;
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dnxhd_encode_dc(ctx, block[0] - ctx->m.last_dc[n]);
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ctx->m.last_dc[n] = block[0];
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for (i = 1; i <= last_index; i++) {
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j = ctx->m.intra_scantable.permutated[i];
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slevel = block[j];
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if (slevel) {
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int run_level = i - last_non_zero - 1;
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int sign;
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MASK_ABS(sign, slevel);
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if (slevel > 64) {
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offset = (slevel-1) >> 6;
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slevel = 256 | (slevel & 63); // level 64 is treated as 0
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}
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if (run_level)
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slevel |= 128;
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put_bits(&ctx->m.pb, ctx->table_vlc_bits[slevel]+1, (ctx->table_vlc_codes[slevel]<<1)|(sign&1));
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if (offset) {
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put_bits(&ctx->m.pb, 4, offset);
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offset = 0;
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}
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if (run_level)
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put_bits(&ctx->m.pb, ctx->table_run_bits[run_level], ctx->table_run_codes[run_level]);
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last_non_zero = i;
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}
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}
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put_bits(&ctx->m.pb, ctx->table_vlc_bits[0], ctx->table_vlc_codes[0]); // EOB
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}
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static av_always_inline void dnxhd_unquantize_c(DNXHDEncContext *ctx, DCTELEM *block, int n, int qscale, int last_index)
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{
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const uint8_t *weigth_matrix;
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int level;
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int i;
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weigth_matrix = (n&2) ? ctx->cid_table->chroma_weigth : ctx->cid_table->luma_weigth;
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for (i = 1; i <= last_index; i++) {
|
||||
int j = ctx->m.intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
if (level < 0) {
|
||||
level = (1-2*level) * qscale * weigth_matrix[i];
|
||||
if (weigth_matrix[i] != 32)
|
||||
level += 32;
|
||||
level >>= 6;
|
||||
level = -level;
|
||||
} else {
|
||||
level = (2*level+1) * qscale * weigth_matrix[i];
|
||||
if (weigth_matrix[i] != 32)
|
||||
level += 32;
|
||||
level >>= 6;
|
||||
}
|
||||
block[j] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static av_always_inline int dnxhd_ssd_block(DCTELEM *qblock, DCTELEM *block)
|
||||
{
|
||||
int score = 0;
|
||||
int i;
|
||||
for (i = 0; i < 64; i++)
|
||||
score += (block[i]-qblock[i])*(block[i]-qblock[i]);
|
||||
return score;
|
||||
}
|
||||
|
||||
static av_always_inline int dnxhd_calc_ac_bits(DNXHDEncContext *ctx, DCTELEM *block, int last_index)
|
||||
{
|
||||
int last_non_zero = 0;
|
||||
int bits = 0;
|
||||
int i, j, level;
|
||||
for (i = 1; i <= last_index; i++) {
|
||||
j = ctx->m.intra_scantable.permutated[i];
|
||||
level = block[j];
|
||||
if (level) {
|
||||
int run_level = i - last_non_zero - 1;
|
||||
level = FFABS(level);
|
||||
if (level > 64) {
|
||||
level = 256 | (level & 63); // level 64 is treated as 0
|
||||
bits += 4;
|
||||
}
|
||||
level |= (!!run_level)<<7;
|
||||
bits += ctx->table_vlc_bits[level]+1 + ctx->table_run_bits[run_level];
|
||||
last_non_zero = i;
|
||||
}
|
||||
}
|
||||
return bits;
|
||||
}
|
||||
|
||||
static av_always_inline void dnxhd_get_pixels_4x8(DCTELEM *restrict block, const uint8_t *pixels, int line_size)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < 4; i++) {
|
||||
block[0] = pixels[0];
|
||||
block[1] = pixels[1];
|
||||
block[2] = pixels[2];
|
||||
block[3] = pixels[3];
|
||||
block[4] = pixels[4];
|
||||
block[5] = pixels[5];
|
||||
block[6] = pixels[6];
|
||||
block[7] = pixels[7];
|
||||
pixels += line_size;
|
||||
block += 8;
|
||||
}
|
||||
memcpy(block , block- 8, sizeof(*block)*8);
|
||||
memcpy(block+ 8, block-16, sizeof(*block)*8);
|
||||
memcpy(block+16, block-24, sizeof(*block)*8);
|
||||
memcpy(block+24, block-32, sizeof(*block)*8);
|
||||
}
|
||||
|
||||
static av_always_inline void dnxhd_get_blocks(DNXHDEncContext *ctx, int mb_x, int mb_y)
|
||||
{
|
||||
const uint8_t *ptr_y = ctx->thread[0]->src[0] + ((mb_y << 4) * ctx->m.linesize) + (mb_x << 4);
|
||||
const uint8_t *ptr_u = ctx->thread[0]->src[1] + ((mb_y << 4) * ctx->m.uvlinesize) + (mb_x << 3);
|
||||
const uint8_t *ptr_v = ctx->thread[0]->src[2] + ((mb_y << 4) * ctx->m.uvlinesize) + (mb_x << 3);
|
||||
DSPContext *dsp = &ctx->m.dsp;
|
||||
|
||||
dsp->get_pixels(ctx->blocks[0], ptr_y , ctx->m.linesize);
|
||||
dsp->get_pixels(ctx->blocks[1], ptr_y + 8, ctx->m.linesize);
|
||||
dsp->get_pixels(ctx->blocks[2], ptr_u , ctx->m.uvlinesize);
|
||||
dsp->get_pixels(ctx->blocks[3], ptr_v , ctx->m.uvlinesize);
|
||||
|
||||
if (mb_y+1 == ctx->m.mb_height) {
|
||||
if (ctx->interlaced) {
|
||||
dnxhd_get_pixels_4x8(ctx->blocks[4], ptr_y + ctx->dct_y_offset , ctx->m.linesize);
|
||||
dnxhd_get_pixels_4x8(ctx->blocks[5], ptr_y + ctx->dct_y_offset + 8, ctx->m.linesize);
|
||||
dnxhd_get_pixels_4x8(ctx->blocks[6], ptr_u + ctx->dct_uv_offset , ctx->m.uvlinesize);
|
||||
dnxhd_get_pixels_4x8(ctx->blocks[7], ptr_v + ctx->dct_uv_offset , ctx->m.uvlinesize);
|
||||
} else
|
||||
memset(ctx->blocks[4], 0, 4*64*sizeof(DCTELEM));
|
||||
} else {
|
||||
dsp->get_pixels(ctx->blocks[4], ptr_y + ctx->dct_y_offset , ctx->m.linesize);
|
||||
dsp->get_pixels(ctx->blocks[5], ptr_y + ctx->dct_y_offset + 8, ctx->m.linesize);
|
||||
dsp->get_pixels(ctx->blocks[6], ptr_u + ctx->dct_uv_offset , ctx->m.uvlinesize);
|
||||
dsp->get_pixels(ctx->blocks[7], ptr_v + ctx->dct_uv_offset , ctx->m.uvlinesize);
|
||||
}
|
||||
}
|
||||
|
||||
static av_always_inline int dnxhd_switch_matrix(DNXHDEncContext *ctx, int i)
|
||||
{
|
||||
if (i&2) {
|
||||
ctx->m.q_intra_matrix16 = ctx->qmatrix_c16;
|
||||
ctx->m.q_intra_matrix = ctx->qmatrix_c;
|
||||
return 1 + (i&1);
|
||||
} else {
|
||||
ctx->m.q_intra_matrix16 = ctx->qmatrix_l16;
|
||||
ctx->m.q_intra_matrix = ctx->qmatrix_l;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static int dnxhd_calc_bits_thread(AVCodecContext *avctx, void *arg)
|
||||
{
|
||||
DNXHDEncContext *ctx = arg;
|
||||
int mb_y, mb_x;
|
||||
int qscale = ctx->thread[0]->qscale;
|
||||
|
||||
for (mb_y = ctx->m.start_mb_y; mb_y < ctx->m.end_mb_y; mb_y++) {
|
||||
ctx->m.last_dc[0] =
|
||||
ctx->m.last_dc[1] =
|
||||
ctx->m.last_dc[2] = 1024;
|
||||
|
||||
for (mb_x = 0; mb_x < ctx->m.mb_width; mb_x++) {
|
||||
unsigned mb = mb_y * ctx->m.mb_width + mb_x;
|
||||
int ssd = 0;
|
||||
int ac_bits = 0;
|
||||
int dc_bits = 0;
|
||||
int i;
|
||||
|
||||
dnxhd_get_blocks(ctx, mb_x, mb_y);
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
DECLARE_ALIGNED_16(DCTELEM, block[64]);
|
||||
DCTELEM *src_block = ctx->blocks[i];
|
||||
int overflow, nbits, diff, last_index;
|
||||
int n = dnxhd_switch_matrix(ctx, i);
|
||||
|
||||
memcpy(block, src_block, sizeof(block));
|
||||
last_index = ctx->m.dct_quantize((MpegEncContext*)ctx, block, i, qscale, &overflow);
|
||||
ac_bits += dnxhd_calc_ac_bits(ctx, block, last_index);
|
||||
|
||||
diff = block[0] - ctx->m.last_dc[n];
|
||||
if (diff < 0) nbits = av_log2_16bit(-2*diff);
|
||||
else nbits = av_log2_16bit( 2*diff);
|
||||
dc_bits += ctx->cid_table->dc_bits[nbits] + nbits;
|
||||
|
||||
ctx->m.last_dc[n] = block[0];
|
||||
|
||||
if (avctx->mb_decision == FF_MB_DECISION_RD || !RC_VARIANCE) {
|
||||
dnxhd_unquantize_c(ctx, block, i, qscale, last_index);
|
||||
ctx->m.dsp.idct(block);
|
||||
ssd += dnxhd_ssd_block(block, src_block);
|
||||
}
|
||||
}
|
||||
ctx->mb_rc[qscale][mb].ssd = ssd;
|
||||
ctx->mb_rc[qscale][mb].bits = ac_bits+dc_bits+12+8*ctx->table_vlc_bits[0];
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dnxhd_encode_thread(AVCodecContext *avctx, void *arg)
|
||||
{
|
||||
DNXHDEncContext *ctx = arg;
|
||||
int mb_y, mb_x;
|
||||
|
||||
for (mb_y = ctx->m.start_mb_y; mb_y < ctx->m.end_mb_y; mb_y++) {
|
||||
ctx->m.last_dc[0] =
|
||||
ctx->m.last_dc[1] =
|
||||
ctx->m.last_dc[2] = 1024;
|
||||
for (mb_x = 0; mb_x < ctx->m.mb_width; mb_x++) {
|
||||
unsigned mb = mb_y * ctx->m.mb_width + mb_x;
|
||||
int qscale = ctx->mb_qscale[mb];
|
||||
int i;
|
||||
|
||||
put_bits(&ctx->m.pb, 12, qscale<<1);
|
||||
|
||||
dnxhd_get_blocks(ctx, mb_x, mb_y);
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
DCTELEM *block = ctx->blocks[i];
|
||||
int last_index, overflow;
|
||||
int n = dnxhd_switch_matrix(ctx, i);
|
||||
last_index = ctx->m.dct_quantize((MpegEncContext*)ctx, block, i, qscale, &overflow);
|
||||
dnxhd_encode_block(ctx, block, last_index, n);
|
||||
}
|
||||
}
|
||||
if (put_bits_count(&ctx->m.pb)&31)
|
||||
put_bits(&ctx->m.pb, 32-(put_bits_count(&ctx->m.pb)&31), 0);
|
||||
}
|
||||
flush_put_bits(&ctx->m.pb);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void dnxhd_setup_threads_slices(DNXHDEncContext *ctx, uint8_t *buf)
|
||||
{
|
||||
int mb_y, mb_x;
|
||||
int i, offset = 0;
|
||||
for (i = 0; i < ctx->m.avctx->thread_count; i++) {
|
||||
int thread_size = 0;
|
||||
for (mb_y = ctx->thread[i]->m.start_mb_y; mb_y < ctx->thread[i]->m.end_mb_y; mb_y++) {
|
||||
ctx->slice_size[mb_y] = 0;
|
||||
for (mb_x = 0; mb_x < ctx->m.mb_width; mb_x++) {
|
||||
unsigned mb = mb_y * ctx->m.mb_width + mb_x;
|
||||
ctx->slice_size[mb_y] += ctx->mb_bits[mb];
|
||||
}
|
||||
ctx->slice_size[mb_y] = (ctx->slice_size[mb_y]+31)&~31;
|
||||
ctx->slice_size[mb_y] >>= 3;
|
||||
thread_size += ctx->slice_size[mb_y];
|
||||
}
|
||||
init_put_bits(&ctx->thread[i]->m.pb, buf + 640 + offset, thread_size);
|
||||
offset += thread_size;
|
||||
}
|
||||
}
|
||||
|
||||
static int dnxhd_mb_var_thread(AVCodecContext *avctx, void *arg)
|
||||
{
|
||||
DNXHDEncContext *ctx = arg;
|
||||
int mb_y, mb_x;
|
||||
for (mb_y = ctx->m.start_mb_y; mb_y < ctx->m.end_mb_y; mb_y++) {
|
||||
for (mb_x = 0; mb_x < ctx->m.mb_width; mb_x++) {
|
||||
unsigned mb = mb_y * ctx->m.mb_width + mb_x;
|
||||
uint8_t *pix = ctx->thread[0]->src[0] + ((mb_y<<4) * ctx->m.linesize) + (mb_x<<4);
|
||||
int sum = ctx->m.dsp.pix_sum(pix, ctx->m.linesize);
|
||||
int varc = (ctx->m.dsp.pix_norm1(pix, ctx->m.linesize) - (((unsigned)(sum*sum))>>8)+128)>>8;
|
||||
ctx->mb_cmp[mb].value = varc;
|
||||
ctx->mb_cmp[mb].mb = mb;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dnxhd_encode_rdo(AVCodecContext *avctx, DNXHDEncContext *ctx)
|
||||
{
|
||||
unsigned lambda, up_lambda, down_lambda;
|
||||
int x, y, q;
|
||||
|
||||
for (q = 1; q < avctx->qmax; q++) {
|
||||
ctx->qscale = q;
|
||||
avctx->execute(avctx, dnxhd_calc_bits_thread, (void**)&ctx->thread[0], NULL, avctx->thread_count);
|
||||
}
|
||||
up_lambda = avctx->qmax<<LAMBDA_FRAC_BITS;
|
||||
down_lambda = 1; // higher ?
|
||||
lambda = ctx->lambda;
|
||||
|
||||
for (;;) {
|
||||
int bits = 0;
|
||||
int end = 0;
|
||||
if (lambda == up_lambda) {
|
||||
lambda--;
|
||||
end = 1; // need to set final qscales/bits
|
||||
}
|
||||
if (lambda == down_lambda) {
|
||||
lambda++;
|
||||
end = 1;
|
||||
}
|
||||
for (y = 0; y < ctx->m.mb_height; y++) {
|
||||
for (x = 0; x < ctx->m.mb_width; x++) {
|
||||
unsigned min = UINT_MAX;
|
||||
int qscale = 1;
|
||||
int mb = y*ctx->m.mb_width+x;
|
||||
for (q = 1; q < avctx->qmax; q++) {
|
||||
unsigned score = ctx->mb_rc[q][mb].bits*lambda+(ctx->mb_rc[q][mb].ssd<<LAMBDA_FRAC_BITS);
|
||||
if (score < min) {
|
||||
min = score;
|
||||
qscale = q;
|
||||
}
|
||||
}
|
||||
bits += ctx->mb_rc[qscale][mb].bits;
|
||||
ctx->mb_qscale[mb] = qscale;
|
||||
ctx->mb_bits[mb] = ctx->mb_rc[qscale][mb].bits;
|
||||
}
|
||||
bits = (bits+31)&~31; // padding
|
||||
if (bits > ctx->frame_bits)
|
||||
break;
|
||||
}
|
||||
//dprintf(ctx->m.avctx, "lambda %d, up %d, down %d, bits %d, frame %d\n", lambda, up_lambda, down_lambda, bits, ctx->frame_bits);
|
||||
if (end) {
|
||||
if (bits > ctx->frame_bits)
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
if (bits < ctx->frame_bits) {
|
||||
up_lambda = lambda;
|
||||
lambda = (down_lambda+lambda)>>1;
|
||||
} else {
|
||||
down_lambda = lambda;
|
||||
lambda = (up_lambda+lambda)>>1;
|
||||
}
|
||||
}
|
||||
ctx->lambda = lambda;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dnxhd_find_qscale(DNXHDEncContext *ctx)
|
||||
{
|
||||
int bits = 0;
|
||||
int up_step = 1;
|
||||
int down_step = 1;
|
||||
int last_higher = 0;
|
||||
int last_lower = INT_MAX;
|
||||
int qscale;
|
||||
int x, y;
|
||||
|
||||
qscale = ctx->qscale;
|
||||
for (;;) {
|
||||
bits = 0;
|
||||
ctx->qscale = qscale;
|
||||
// XXX avoid recalculating bits
|
||||
ctx->m.avctx->execute(ctx->m.avctx, dnxhd_calc_bits_thread, (void**)&ctx->thread[0], NULL, ctx->m.avctx->thread_count);
|
||||
for (y = 0; y < ctx->m.mb_height; y++) {
|
||||
for (x = 0; x < ctx->m.mb_width; x++)
|
||||
bits += ctx->mb_rc[qscale][y*ctx->m.mb_width+x].bits;
|
||||
bits = (bits+31)&~31; // padding
|
||||
if (bits > ctx->frame_bits)
|
||||
break;
|
||||
}
|
||||
//dprintf(ctx->m.avctx, "%d, qscale %d, bits %d, frame %d, higher %d, lower %d\n",
|
||||
// ctx->m.avctx->frame_number, qscale, bits, ctx->frame_bits, last_higher, last_lower);
|
||||
if (bits < ctx->frame_bits) {
|
||||
if (qscale == 1)
|
||||
break;
|
||||
if (last_higher == qscale - 1) {
|
||||
qscale = last_higher;
|
||||
break;
|
||||
}
|
||||
last_lower = FFMIN(qscale, last_lower);
|
||||
if (last_higher != 0)
|
||||
qscale = (qscale+last_higher)>>1;
|
||||
else
|
||||
qscale -= down_step++;
|
||||
if (qscale < 1)
|
||||
qscale = 1;
|
||||
up_step = 1;
|
||||
} else {
|
||||
if (last_lower == qscale + 1)
|
||||
break;
|
||||
last_higher = FFMAX(qscale, last_higher);
|
||||
if (last_lower != INT_MAX)
|
||||
qscale = (qscale+last_lower)>>1;
|
||||
else
|
||||
qscale += up_step++;
|
||||
down_step = 1;
|
||||
if (qscale >= ctx->m.avctx->qmax)
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
//dprintf(ctx->m.avctx, "out qscale %d\n", qscale);
|
||||
ctx->qscale = qscale;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dnxhd_rc_cmp(const void *a, const void *b)
|
||||
{
|
||||
return ((RCCMPEntry *)b)->value - ((RCCMPEntry *)a)->value;
|
||||
}
|
||||
|
||||
static int dnxhd_encode_variance(AVCodecContext *avctx, DNXHDEncContext *ctx)
|
||||
{
|
||||
int max_bits = 0;
|
||||
int x, y;
|
||||
if (dnxhd_find_qscale(ctx) < 0)
|
||||
return -1;
|
||||
for (y = 0; y < ctx->m.mb_height; y++) {
|
||||
for (x = 0; x < ctx->m.mb_width; x++) {
|
||||
int mb = y*ctx->m.mb_width+x;
|
||||
int delta_bits;
|
||||
ctx->mb_qscale[mb] = ctx->qscale;
|
||||
ctx->mb_bits[mb] = ctx->mb_rc[ctx->qscale][mb].bits;
|
||||
max_bits += ctx->mb_rc[ctx->qscale][mb].bits;
|
||||
if (!RC_VARIANCE) {
|
||||
delta_bits = ctx->mb_rc[ctx->qscale][mb].bits-ctx->mb_rc[ctx->qscale+1][mb].bits;
|
||||
ctx->mb_cmp[mb].mb = mb;
|
||||
ctx->mb_cmp[mb].value = delta_bits ?
|
||||
((ctx->mb_rc[ctx->qscale][mb].ssd-ctx->mb_rc[ctx->qscale+1][mb].ssd)*100)/delta_bits
|
||||
: INT_MIN; //avoid increasing qscale
|
||||
}
|
||||
}
|
||||
max_bits += 31; //worst padding
|
||||
}
|
||||
if (max_bits > ctx->frame_bits) {
|
||||
if (RC_VARIANCE)
|
||||
avctx->execute(avctx, dnxhd_mb_var_thread, (void**)&ctx->thread[0], NULL, avctx->thread_count);
|
||||
qsort(ctx->mb_cmp, ctx->m.mb_num, sizeof(RCEntry), dnxhd_rc_cmp);
|
||||
for (x = 0; x < ctx->m.mb_num && max_bits > ctx->frame_bits; x++) {
|
||||
int mb = ctx->mb_cmp[x].mb;
|
||||
max_bits -= ctx->mb_rc[ctx->qscale][mb].bits - ctx->mb_rc[ctx->qscale+1][mb].bits;
|
||||
ctx->mb_qscale[mb] = ctx->qscale+1;
|
||||
ctx->mb_bits[mb] = ctx->mb_rc[ctx->qscale+1][mb].bits;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void dnxhd_load_picture(DNXHDEncContext *ctx, AVFrame *frame)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < 3; i++) {
|
||||
ctx->frame.data[i] = frame->data[i];
|
||||
ctx->frame.linesize[i] = frame->linesize[i];
|
||||
}
|
||||
|
||||
for (i = 0; i < ctx->m.avctx->thread_count; i++) {
|
||||
ctx->thread[i]->m.linesize = ctx->frame.linesize[0]<<ctx->interlaced;
|
||||
ctx->thread[i]->m.uvlinesize = ctx->frame.linesize[1]<<ctx->interlaced;
|
||||
ctx->thread[i]->dct_y_offset = ctx->m.linesize *8;
|
||||
ctx->thread[i]->dct_uv_offset = ctx->m.uvlinesize*8;
|
||||
}
|
||||
|
||||
ctx->frame.interlaced_frame = frame->interlaced_frame;
|
||||
ctx->cur_field = frame->interlaced_frame && !frame->top_field_first;
|
||||
}
|
||||
|
||||
static int dnxhd_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data)
|
||||
{
|
||||
DNXHDEncContext *ctx = avctx->priv_data;
|
||||
int first_field = 1;
|
||||
int offset, i, ret;
|
||||
|
||||
if (buf_size < ctx->cid_table->frame_size) {
|
||||
av_log(avctx, AV_LOG_ERROR, "output buffer is too small to compress picture\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
dnxhd_load_picture(ctx, data);
|
||||
|
||||
encode_coding_unit:
|
||||
for (i = 0; i < 3; i++) {
|
||||
ctx->src[i] = ctx->frame.data[i];
|
||||
if (ctx->interlaced && ctx->cur_field)
|
||||
ctx->src[i] += ctx->frame.linesize[i];
|
||||
}
|
||||
|
||||
dnxhd_write_header(avctx, buf);
|
||||
|
||||
if (avctx->mb_decision == FF_MB_DECISION_RD)
|
||||
ret = dnxhd_encode_rdo(avctx, ctx);
|
||||
else
|
||||
ret = dnxhd_encode_variance(avctx, ctx);
|
||||
if (ret < 0) {
|
||||
av_log(avctx, AV_LOG_ERROR, "picture could not fit ratecontrol constraints\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
dnxhd_setup_threads_slices(ctx, buf);
|
||||
|
||||
offset = 0;
|
||||
for (i = 0; i < ctx->m.mb_height; i++) {
|
||||
AV_WB32(ctx->msip + i * 4, offset);
|
||||
offset += ctx->slice_size[i];
|
||||
assert(!(ctx->slice_size[i] & 3));
|
||||
}
|
||||
|
||||
avctx->execute(avctx, dnxhd_encode_thread, (void**)&ctx->thread[0], NULL, avctx->thread_count);
|
||||
|
||||
AV_WB32(buf + ctx->cid_table->coding_unit_size - 4, 0x600DC0DE); // EOF
|
||||
|
||||
if (ctx->interlaced && first_field) {
|
||||
first_field = 0;
|
||||
ctx->cur_field ^= 1;
|
||||
buf += ctx->cid_table->coding_unit_size;
|
||||
buf_size -= ctx->cid_table->coding_unit_size;
|
||||
goto encode_coding_unit;
|
||||
}
|
||||
|
||||
return ctx->cid_table->frame_size;
|
||||
}
|
||||
|
||||
static int dnxhd_encode_end(AVCodecContext *avctx)
|
||||
{
|
||||
DNXHDEncContext *ctx = avctx->priv_data;
|
||||
int i;
|
||||
|
||||
av_freep(&ctx->table_vlc_codes);
|
||||
av_freep(&ctx->table_vlc_bits);
|
||||
av_freep(&ctx->table_run_codes);
|
||||
av_freep(&ctx->table_run_bits);
|
||||
|
||||
av_freep(&ctx->mb_bits);
|
||||
av_freep(&ctx->mb_qscale);
|
||||
av_freep(&ctx->mb_rc);
|
||||
av_freep(&ctx->mb_cmp);
|
||||
av_freep(&ctx->slice_size);
|
||||
|
||||
av_freep(&ctx->qmatrix_c);
|
||||
av_freep(&ctx->qmatrix_l);
|
||||
av_freep(&ctx->qmatrix_c16);
|
||||
av_freep(&ctx->qmatrix_l16);
|
||||
|
||||
for (i = 1; i < avctx->thread_count; i++)
|
||||
av_freep(&ctx->thread[i]);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVCodec dnxhd_encoder = {
|
||||
"dnxhd",
|
||||
CODEC_TYPE_VIDEO,
|
||||
CODEC_ID_DNXHD,
|
||||
sizeof(DNXHDEncContext),
|
||||
dnxhd_encode_init,
|
||||
dnxhd_encode_picture,
|
||||
dnxhd_encode_end,
|
||||
.pix_fmts = (enum PixelFormat[]){PIX_FMT_YUV422P, -1},
|
||||
};
|
||||
@ -516,6 +516,51 @@ static int mov_write_avcc_tag(ByteIOContext *pb, MOVTrack *track)
|
||||
return updateSize(pb, pos);
|
||||
}
|
||||
|
||||
/* also used by all avid codecs (dv, imx, meridien) and their variants */
|
||||
static int mov_write_avid_tag(ByteIOContext *pb, MOVTrack *track)
|
||||
{
|
||||
int i;
|
||||
put_be32(pb, 24); /* size */
|
||||
put_tag(pb, "ACLR");
|
||||
put_tag(pb, "ACLR");
|
||||
put_tag(pb, "0001");
|
||||
put_be32(pb, 1); /* yuv 1 / rgb 2 ? */
|
||||
put_be32(pb, 0); /* unknown */
|
||||
|
||||
put_be32(pb, 24); /* size */
|
||||
put_tag(pb, "APRG");
|
||||
put_tag(pb, "APRG");
|
||||
put_tag(pb, "0001");
|
||||
put_be32(pb, 1); /* unknown */
|
||||
put_be32(pb, 0); /* unknown */
|
||||
|
||||
put_be32(pb, 120); /* size */
|
||||
put_tag(pb, "ARES");
|
||||
put_tag(pb, "ARES");
|
||||
put_tag(pb, "0001");
|
||||
put_be32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
|
||||
put_be32(pb, track->enc->width);
|
||||
/* values below are based on samples created with quicktime and avid codecs */
|
||||
if (track->vosData[5] & 2) { // interlaced
|
||||
put_be32(pb, track->enc->height/2);
|
||||
put_be32(pb, 2); /* unknown */
|
||||
put_be32(pb, 0); /* unknown */
|
||||
put_be32(pb, 4); /* unknown */
|
||||
} else {
|
||||
put_be32(pb, track->enc->height);
|
||||
put_be32(pb, 1); /* unknown */
|
||||
put_be32(pb, 0); /* unknown */
|
||||
put_be32(pb, 5); /* unknown */
|
||||
}
|
||||
/* padding */
|
||||
for (i = 0; i < 10; i++)
|
||||
put_be64(pb, 0);
|
||||
|
||||
/* extra padding for stsd needed */
|
||||
put_be32(pb, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mov_find_video_codec_tag(AVFormatContext *s, MOVTrack *track)
|
||||
{
|
||||
int tag = track->enc->codec_tag;
|
||||
@ -623,6 +668,8 @@ static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
|
||||
mov_write_svq3_tag(pb);
|
||||
else if(track->enc->codec_id == CODEC_ID_H264)
|
||||
mov_write_avcc_tag(pb, track);
|
||||
else if(track->enc->codec_id == CODEC_ID_DNXHD)
|
||||
mov_write_avid_tag(pb, track);
|
||||
|
||||
return updateSize (pb, pos);
|
||||
}
|
||||
@ -1561,6 +1608,13 @@ static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
|
||||
avc_parse_nal_units(&pkt->data, &pkt->size);
|
||||
assert(pkt->size);
|
||||
size = pkt->size;
|
||||
} else if (enc->codec_id == CODEC_ID_DNXHD && !trk->vosLen) {
|
||||
/* copy frame header to create needed atoms */
|
||||
if (size < 640)
|
||||
return -1;
|
||||
trk->vosLen = 640;
|
||||
trk->vosData = av_malloc(trk->vosLen);
|
||||
memcpy(trk->vosData, pkt->data, 640);
|
||||
}
|
||||
|
||||
if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user