2007-03-18 23:25:00 +00:00
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/*
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* VC3/DNxHD decoder.
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2009-01-19 15:46:40 +00:00
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* Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
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2011-07-20 17:58:27 +00:00
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* Copyright (c) 2011 MirriAd Ltd
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*
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* 10 bit support added by MirriAd Ltd, Joseph Artsimovich <joseph@mirriad.com>
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2007-03-18 23:25:00 +00:00
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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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2011-02-07 13:37:08 +00:00
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#include "libavutil/imgutils.h"
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2014-01-23 15:20:23 +00:00
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#include "libavutil/timer.h"
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2007-03-18 23:25:00 +00:00
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#include "avcodec.h"
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2014-01-14 09:33:47 +00:00
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#include "blockdsp.h"
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2009-04-13 16:20:26 +00:00
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#include "get_bits.h"
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2007-03-18 23:25:00 +00:00
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#include "dnxhddata.h"
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2014-01-24 10:55:16 +00:00
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#include "idctdsp.h"
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2012-11-10 12:22:56 +00:00
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#include "internal.h"
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2012-01-19 01:06:29 +00:00
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#include "thread.h"
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2007-03-18 23:25:00 +00:00
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2011-07-21 18:04:37 +00:00
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typedef struct DNXHDContext {
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2007-03-18 23:25:00 +00:00
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AVCodecContext *avctx;
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GetBitContext gb;
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2014-01-14 09:33:47 +00:00
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BlockDSPContext bdsp;
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2012-12-14 19:57:25 +00:00
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int64_t cid; ///< compression id
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2007-03-18 23:25:00 +00:00
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unsigned int width, height;
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2014-10-28 23:57:07 +00:00
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enum AVPixelFormat pix_fmt;
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2007-03-18 23:25:00 +00:00
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unsigned int mb_width, mb_height;
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uint32_t mb_scan_index[68]; /* max for 1080p */
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int cur_field; ///< current interlaced field
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VLC ac_vlc, dc_vlc, run_vlc;
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int last_dc[3];
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2014-01-24 10:55:16 +00:00
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IDCTDSPContext idsp;
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2014-01-27 18:10:44 +00:00
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DECLARE_ALIGNED(16, int16_t, blocks)[12][64];
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2009-08-26 12:12:40 +00:00
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ScanTable scantable;
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2007-03-18 23:25:00 +00:00
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const CIDEntry *cid_table;
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2011-07-20 17:58:27 +00:00
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int bit_depth; // 8, 10 or 0 if not initialized at all.
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2014-01-27 18:10:44 +00:00
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int is_444;
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2013-01-20 00:02:29 +00:00
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void (*decode_dct_block)(struct DNXHDContext *ctx, int16_t *block,
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2011-07-21 18:04:37 +00:00
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int n, int qscale);
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2011-07-24 18:36:18 +00:00
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int last_qscale;
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int luma_scale[64];
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int chroma_scale[64];
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2007-03-18 23:25:00 +00:00
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} DNXHDContext;
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#define DNXHD_VLC_BITS 9
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2007-10-08 12:23:00 +00:00
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#define DNXHD_DC_VLC_BITS 7
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2007-03-18 23:25:00 +00:00
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2014-03-28 01:02:48 +00:00
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static void dnxhd_decode_dct_block_8(DNXHDContext *ctx, int16_t *block,
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int n, int qscale);
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static void dnxhd_decode_dct_block_10(DNXHDContext *ctx, int16_t *block,
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int n, int qscale);
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static void dnxhd_decode_dct_block_10_444(DNXHDContext *ctx, int16_t *block,
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int n, int qscale);
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2011-07-21 18:04:37 +00:00
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2008-03-21 03:11:20 +00:00
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static av_cold int dnxhd_decode_init(AVCodecContext *avctx)
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2007-03-18 23:25:00 +00:00
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{
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DNXHDContext *ctx = avctx->priv_data;
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ctx->avctx = avctx;
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2012-12-14 19:57:25 +00:00
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ctx->cid = -1;
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2007-03-18 23:25:00 +00:00
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return 0;
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}
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2012-12-14 19:57:25 +00:00
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static int dnxhd_init_vlc(DNXHDContext *ctx, uint32_t cid)
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2007-03-18 23:25:00 +00:00
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{
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2011-06-26 21:08:22 +00:00
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if (cid != ctx->cid) {
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2007-03-18 23:25:00 +00:00
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int index;
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2007-08-04 13:41:33 +00:00
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if ((index = ff_dnxhd_get_cid_table(cid)) < 0) {
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2007-03-18 23:25:00 +00:00
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av_log(ctx->avctx, AV_LOG_ERROR, "unsupported cid %d\n", cid);
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2014-02-08 20:25:35 +00:00
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return AVERROR(ENOSYS);
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2007-03-18 23:25:00 +00:00
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}
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2012-04-21 19:39:18 +00:00
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if (ff_dnxhd_cid_table[index].bit_depth != ctx->bit_depth) {
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av_log(ctx->avctx, AV_LOG_ERROR, "bit depth mismatches %d %d\n", ff_dnxhd_cid_table[index].bit_depth, ctx->bit_depth);
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return AVERROR_INVALIDDATA;
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}
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2007-08-04 13:41:33 +00:00
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ctx->cid_table = &ff_dnxhd_cid_table[index];
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2011-06-26 21:08:22 +00:00
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2012-02-09 09:37:58 +00:00
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ff_free_vlc(&ctx->ac_vlc);
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ff_free_vlc(&ctx->dc_vlc);
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ff_free_vlc(&ctx->run_vlc);
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2011-06-26 21:08:22 +00:00
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2007-03-18 23:25:00 +00:00
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init_vlc(&ctx->ac_vlc, DNXHD_VLC_BITS, 257,
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2007-08-04 13:03:12 +00:00
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ctx->cid_table->ac_bits, 1, 1,
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ctx->cid_table->ac_codes, 2, 2, 0);
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2011-07-20 17:58:27 +00:00
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init_vlc(&ctx->dc_vlc, DNXHD_DC_VLC_BITS, ctx->bit_depth + 4,
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2007-08-04 13:03:12 +00:00
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ctx->cid_table->dc_bits, 1, 1,
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ctx->cid_table->dc_codes, 1, 1, 0);
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2007-03-18 23:25:00 +00:00
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init_vlc(&ctx->run_vlc, DNXHD_VLC_BITS, 62,
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2007-08-04 13:03:12 +00:00
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ctx->cid_table->run_bits, 1, 1,
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ctx->cid_table->run_codes, 2, 2, 0);
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2007-03-18 23:25:00 +00:00
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2014-01-24 10:55:16 +00:00
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ff_init_scantable(ctx->idsp.idct_permutation, &ctx->scantable,
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2014-03-28 01:02:48 +00:00
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ff_zigzag_direct);
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2011-06-26 21:08:22 +00:00
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ctx->cid = cid;
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2007-03-18 23:25:00 +00:00
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}
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return 0;
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}
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2012-11-21 20:34:46 +00:00
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static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
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2014-03-28 01:02:48 +00:00
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const uint8_t *buf, int buf_size,
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int first_field)
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2007-03-18 23:25:00 +00:00
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{
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2014-01-27 18:10:44 +00:00
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static const uint8_t header_prefix[] = { 0x00, 0x00, 0x02, 0x80, 0x01 };
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static const uint8_t header_prefix444[] = { 0x00, 0x00, 0x02, 0x80, 0x02 };
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2014-02-08 20:25:35 +00:00
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int i, cid, ret;
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2007-03-18 23:25:00 +00:00
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if (buf_size < 0x280)
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2014-02-08 20:25:35 +00:00
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return AVERROR_INVALIDDATA;
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2007-03-18 23:25:00 +00:00
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2014-01-27 18:10:44 +00:00
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if (memcmp(buf, header_prefix, 5) && memcmp(buf, header_prefix444, 5)) {
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2007-03-18 23:25:00 +00:00
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av_log(ctx->avctx, AV_LOG_ERROR, "error in header\n");
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2014-02-08 20:25:35 +00:00
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return AVERROR_INVALIDDATA;
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2007-03-18 23:25:00 +00:00
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}
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2007-08-04 13:17:53 +00:00
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if (buf[5] & 2) { /* interlaced */
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ctx->cur_field = buf[5] & 1;
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2012-11-21 20:34:46 +00:00
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frame->interlaced_frame = 1;
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frame->top_field_first = first_field ^ ctx->cur_field;
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2014-03-28 01:02:48 +00:00
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av_log(ctx->avctx, AV_LOG_DEBUG,
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"interlaced %d, cur field %d\n", buf[5] & 3, ctx->cur_field);
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2007-03-18 23:25:00 +00:00
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}
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ctx->height = AV_RB16(buf + 0x18);
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ctx->width = AV_RB16(buf + 0x1a);
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2011-10-05 09:12:01 +00:00
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av_dlog(ctx->avctx, "width %d, height %d\n", ctx->width, ctx->height);
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2007-03-18 23:25:00 +00:00
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2014-01-27 18:10:44 +00:00
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ctx->is_444 = 0;
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if (buf[0x4] == 0x2) {
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2014-10-28 23:57:07 +00:00
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ctx->pix_fmt = AV_PIX_FMT_YUV444P10;
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2014-01-27 18:10:44 +00:00
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ctx->avctx->bits_per_raw_sample = 10;
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if (ctx->bit_depth != 10) {
|
2014-01-14 09:33:47 +00:00
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ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
|
2014-01-24 10:55:16 +00:00
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ff_idctdsp_init(&ctx->idsp, ctx->avctx);
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2014-01-27 18:10:44 +00:00
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ctx->bit_depth = 10;
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ctx->decode_dct_block = dnxhd_decode_dct_block_10_444;
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}
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ctx->is_444 = 1;
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} else if (buf[0x21] & 0x40) {
|
2014-10-28 23:57:07 +00:00
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ctx->pix_fmt = AV_PIX_FMT_YUV422P10;
|
2011-07-20 17:58:27 +00:00
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ctx->avctx->bits_per_raw_sample = 10;
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if (ctx->bit_depth != 10) {
|
2014-01-14 09:33:47 +00:00
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ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
|
2014-01-24 10:55:16 +00:00
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ff_idctdsp_init(&ctx->idsp, ctx->avctx);
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2011-07-20 17:58:27 +00:00
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ctx->bit_depth = 10;
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2011-07-21 18:04:37 +00:00
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ctx->decode_dct_block = dnxhd_decode_dct_block_10;
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2011-07-20 17:58:27 +00:00
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}
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} else {
|
2014-10-28 23:57:07 +00:00
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ctx->pix_fmt = AV_PIX_FMT_YUV422P;
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2011-07-20 17:58:27 +00:00
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ctx->avctx->bits_per_raw_sample = 8;
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if (ctx->bit_depth != 8) {
|
2014-01-14 09:33:47 +00:00
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ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
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2014-01-24 10:55:16 +00:00
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ff_idctdsp_init(&ctx->idsp, ctx->avctx);
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2011-07-20 17:58:27 +00:00
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ctx->bit_depth = 8;
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2011-07-21 18:04:37 +00:00
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ctx->decode_dct_block = dnxhd_decode_dct_block_8;
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2011-07-20 17:58:27 +00:00
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}
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2007-03-18 23:25:00 +00:00
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}
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2011-06-26 21:08:22 +00:00
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cid = AV_RB32(buf + 0x28);
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av_dlog(ctx->avctx, "compression id %d\n", cid);
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2007-03-18 23:25:00 +00:00
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2014-02-08 20:25:35 +00:00
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if ((ret = dnxhd_init_vlc(ctx, cid)) < 0)
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return ret;
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2007-03-18 23:25:00 +00:00
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2007-08-04 12:59:49 +00:00
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if (buf_size < ctx->cid_table->coding_unit_size) {
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2007-03-18 23:25:00 +00:00
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av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size\n");
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2014-02-08 20:25:35 +00:00
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return AVERROR_INVALIDDATA;
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2007-03-18 23:25:00 +00:00
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}
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2014-03-28 01:02:48 +00:00
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ctx->mb_width = ctx->width >> 4;
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2007-03-18 23:25:00 +00:00
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ctx->mb_height = buf[0x16d];
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2014-03-28 01:02:48 +00:00
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av_dlog(ctx->avctx,
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"mb width %d, mb height %d\n", ctx->mb_width, ctx->mb_height);
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2010-03-09 00:37:13 +00:00
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2014-03-28 01:02:48 +00:00
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if ((ctx->height + 15) >> 4 == ctx->mb_height && frame->interlaced_frame)
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2010-03-09 00:37:13 +00:00
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ctx->height <<= 1;
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if (ctx->mb_height > 68 ||
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2014-03-28 01:02:48 +00:00
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(ctx->mb_height << frame->interlaced_frame) > (ctx->height + 15) >> 4) {
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av_log(ctx->avctx, AV_LOG_ERROR,
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"mb height too big: %d\n", ctx->mb_height);
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2014-02-08 20:25:35 +00:00
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return AVERROR_INVALIDDATA;
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2007-03-18 23:25:00 +00:00
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}
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for (i = 0; i < ctx->mb_height; i++) {
|
2014-03-28 01:02:48 +00:00
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ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i << 2));
|
2011-01-29 16:46:18 +00:00
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av_dlog(ctx->avctx, "mb scan index %d\n", ctx->mb_scan_index[i]);
|
2013-01-30 18:31:45 +00:00
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if (buf_size < ctx->mb_scan_index[i] + 0x280LL) {
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2007-03-18 23:25:00 +00:00
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av_log(ctx->avctx, AV_LOG_ERROR, "invalid mb scan index\n");
|
2014-02-08 20:25:35 +00:00
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return AVERROR_INVALIDDATA;
|
2007-03-18 23:25:00 +00:00
|
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}
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}
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return 0;
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}
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|
2011-07-21 18:04:37 +00:00
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static av_always_inline void dnxhd_decode_dct_block(DNXHDContext *ctx,
|
2013-01-20 00:02:29 +00:00
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int16_t *block, int n,
|
2011-07-21 18:04:37 +00:00
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int qscale,
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int index_bits,
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int level_bias,
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int level_shift)
|
2007-03-18 23:25:00 +00:00
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{
|
2011-07-22 23:05:54 +00:00
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int i, j, index1, index2, len, flags;
|
2007-03-18 23:25:00 +00:00
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int level, component, sign;
|
2011-07-24 18:36:18 +00:00
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const int *scale;
|
2011-07-21 18:04:37 +00:00
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const uint8_t *weight_matrix;
|
2011-07-21 23:42:08 +00:00
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const uint8_t *ac_level = ctx->cid_table->ac_level;
|
2011-07-22 23:05:54 +00:00
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|
const uint8_t *ac_flags = ctx->cid_table->ac_flags;
|
2011-07-21 23:42:08 +00:00
|
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|
const int eob_index = ctx->cid_table->eob_index;
|
2011-07-21 18:04:37 +00:00
|
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|
OPEN_READER(bs, &ctx->gb);
|
2007-03-18 23:25:00 +00:00
|
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|
|
2014-01-27 18:10:44 +00:00
|
|
|
if (!ctx->is_444) {
|
2014-03-28 01:02:48 +00:00
|
|
|
if (n & 2) {
|
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|
|
component = 1 + (n & 1);
|
2014-02-10 02:42:06 +00:00
|
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|
scale = ctx->chroma_scale;
|
2014-01-27 18:10:44 +00:00
|
|
|
weight_matrix = ctx->cid_table->chroma_weight;
|
|
|
|
} else {
|
2014-03-28 01:02:48 +00:00
|
|
|
component = 0;
|
2014-02-10 02:42:06 +00:00
|
|
|
scale = ctx->luma_scale;
|
2014-01-27 18:10:44 +00:00
|
|
|
weight_matrix = ctx->cid_table->luma_weight;
|
|
|
|
}
|
2007-03-18 23:25:00 +00:00
|
|
|
} else {
|
2014-01-27 18:10:44 +00:00
|
|
|
component = (n >> 1) % 3;
|
|
|
|
if (component) {
|
2014-02-10 02:42:06 +00:00
|
|
|
scale = ctx->chroma_scale;
|
2014-01-27 18:10:44 +00:00
|
|
|
weight_matrix = ctx->cid_table->chroma_weight;
|
|
|
|
} else {
|
2014-02-10 02:42:06 +00:00
|
|
|
scale = ctx->luma_scale;
|
2014-01-27 18:10:44 +00:00
|
|
|
weight_matrix = ctx->cid_table->luma_weight;
|
|
|
|
}
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
|
|
|
|
2011-07-21 18:04:37 +00:00
|
|
|
UPDATE_CACHE(bs, &ctx->gb);
|
|
|
|
GET_VLC(len, bs, &ctx->gb, ctx->dc_vlc.table, DNXHD_DC_VLC_BITS, 1);
|
|
|
|
if (len) {
|
|
|
|
level = GET_CACHE(bs, &ctx->gb);
|
|
|
|
LAST_SKIP_BITS(bs, &ctx->gb, len);
|
|
|
|
sign = ~level >> 31;
|
|
|
|
level = (NEG_USR32(sign ^ level, len) ^ sign) - sign;
|
|
|
|
ctx->last_dc[component] += level;
|
|
|
|
}
|
2007-03-18 23:25:00 +00:00
|
|
|
block[0] = ctx->last_dc[component];
|
2011-07-21 18:04:37 +00:00
|
|
|
|
2011-07-22 21:38:14 +00:00
|
|
|
i = 0;
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2011-07-22 21:38:14 +00:00
|
|
|
UPDATE_CACHE(bs, &ctx->gb);
|
|
|
|
GET_VLC(index1, bs, &ctx->gb, ctx->ac_vlc.table,
|
|
|
|
DNXHD_VLC_BITS, 2);
|
|
|
|
|
2011-07-21 23:42:08 +00:00
|
|
|
while (index1 != eob_index) {
|
|
|
|
level = ac_level[index1];
|
2011-07-22 23:05:54 +00:00
|
|
|
flags = ac_flags[index1];
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2011-07-21 18:04:37 +00:00
|
|
|
sign = SHOW_SBITS(bs, &ctx->gb, 1);
|
|
|
|
SKIP_BITS(bs, &ctx->gb, 1);
|
|
|
|
|
2011-07-22 23:05:54 +00:00
|
|
|
if (flags & 1) {
|
2011-07-21 23:42:08 +00:00
|
|
|
level += SHOW_UBITS(bs, &ctx->gb, index_bits) << 7;
|
2011-07-21 18:04:37 +00:00
|
|
|
SKIP_BITS(bs, &ctx->gb, index_bits);
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
|
|
|
|
2011-07-22 23:05:54 +00:00
|
|
|
if (flags & 2) {
|
2011-07-21 18:04:37 +00:00
|
|
|
UPDATE_CACHE(bs, &ctx->gb);
|
|
|
|
GET_VLC(index2, bs, &ctx->gb, ctx->run_vlc.table,
|
|
|
|
DNXHD_VLC_BITS, 2);
|
2007-08-04 13:09:08 +00:00
|
|
|
i += ctx->cid_table->run[index2];
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
|
|
|
|
2011-07-22 21:38:14 +00:00
|
|
|
if (++i > 63) {
|
2007-10-08 12:11:19 +00:00
|
|
|
av_log(ctx->avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", n, i);
|
2011-07-21 18:04:37 +00:00
|
|
|
break;
|
2007-10-08 12:11:19 +00:00
|
|
|
}
|
|
|
|
|
2014-03-28 01:02:48 +00:00
|
|
|
j = ctx->scantable.permutated[i];
|
2011-07-24 18:36:18 +00:00
|
|
|
level *= scale[i];
|
2011-07-21 23:13:27 +00:00
|
|
|
if (level_bias < 32 || weight_matrix[i] != level_bias)
|
2011-07-21 18:04:37 +00:00
|
|
|
level += level_bias;
|
|
|
|
level >>= level_shift;
|
|
|
|
|
2014-03-28 01:02:48 +00:00
|
|
|
block[j] = (level ^ sign) - sign;
|
2011-07-22 21:38:14 +00:00
|
|
|
|
|
|
|
UPDATE_CACHE(bs, &ctx->gb);
|
|
|
|
GET_VLC(index1, bs, &ctx->gb, ctx->ac_vlc.table,
|
|
|
|
DNXHD_VLC_BITS, 2);
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
2011-07-21 18:04:37 +00:00
|
|
|
|
|
|
|
CLOSE_READER(bs, &ctx->gb);
|
|
|
|
}
|
|
|
|
|
2013-01-20 00:02:29 +00:00
|
|
|
static void dnxhd_decode_dct_block_8(DNXHDContext *ctx, int16_t *block,
|
2011-07-21 18:04:37 +00:00
|
|
|
int n, int qscale)
|
|
|
|
{
|
|
|
|
dnxhd_decode_dct_block(ctx, block, n, qscale, 4, 32, 6);
|
|
|
|
}
|
|
|
|
|
2013-01-20 00:02:29 +00:00
|
|
|
static void dnxhd_decode_dct_block_10(DNXHDContext *ctx, int16_t *block,
|
2011-07-21 18:04:37 +00:00
|
|
|
int n, int qscale)
|
|
|
|
{
|
|
|
|
dnxhd_decode_dct_block(ctx, block, n, qscale, 6, 8, 4);
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
|
|
|
|
2014-01-27 18:10:44 +00:00
|
|
|
static void dnxhd_decode_dct_block_10_444(DNXHDContext *ctx, int16_t *block,
|
|
|
|
int n, int qscale)
|
|
|
|
{
|
|
|
|
dnxhd_decode_dct_block(ctx, block, n, qscale, 6, 32, 6);
|
|
|
|
}
|
|
|
|
|
2014-03-28 01:02:48 +00:00
|
|
|
static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
|
|
|
|
int x, int y)
|
2007-03-18 23:25:00 +00:00
|
|
|
{
|
2011-07-20 17:58:27 +00:00
|
|
|
int shift1 = ctx->bit_depth == 10;
|
2012-11-21 20:34:46 +00:00
|
|
|
int dct_linesize_luma = frame->linesize[0];
|
|
|
|
int dct_linesize_chroma = frame->linesize[1];
|
2007-03-18 23:25:00 +00:00
|
|
|
uint8_t *dest_y, *dest_u, *dest_v;
|
2011-07-20 17:58:27 +00:00
|
|
|
int dct_y_offset, dct_x_offset;
|
2007-03-18 23:25:00 +00:00
|
|
|
int qscale, i;
|
|
|
|
|
|
|
|
qscale = get_bits(&ctx->gb, 11);
|
|
|
|
skip_bits1(&ctx->gb);
|
|
|
|
|
2011-07-24 18:36:18 +00:00
|
|
|
if (qscale != ctx->last_qscale) {
|
|
|
|
for (i = 0; i < 64; i++) {
|
|
|
|
ctx->luma_scale[i] = qscale * ctx->cid_table->luma_weight[i];
|
|
|
|
ctx->chroma_scale[i] = qscale * ctx->cid_table->chroma_weight[i];
|
|
|
|
}
|
|
|
|
ctx->last_qscale = qscale;
|
|
|
|
}
|
|
|
|
|
2007-03-18 23:25:00 +00:00
|
|
|
for (i = 0; i < 8; i++) {
|
2014-01-14 09:33:47 +00:00
|
|
|
ctx->bdsp.clear_block(ctx->blocks[i]);
|
2011-07-21 18:04:37 +00:00
|
|
|
ctx->decode_dct_block(ctx, ctx->blocks[i], i, qscale);
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
2014-01-27 18:10:44 +00:00
|
|
|
if (ctx->is_444) {
|
|
|
|
for (; i < 12; i++) {
|
2014-01-14 09:33:47 +00:00
|
|
|
ctx->bdsp.clear_block(ctx->blocks[i]);
|
2014-01-27 18:10:44 +00:00
|
|
|
ctx->decode_dct_block(ctx, ctx->blocks[i], i, qscale);
|
|
|
|
}
|
|
|
|
}
|
2007-08-04 13:17:53 +00:00
|
|
|
|
2012-11-21 20:34:46 +00:00
|
|
|
if (frame->interlaced_frame) {
|
2007-08-04 13:17:53 +00:00
|
|
|
dct_linesize_luma <<= 1;
|
|
|
|
dct_linesize_chroma <<= 1;
|
|
|
|
}
|
|
|
|
|
2012-11-21 20:34:46 +00:00
|
|
|
dest_y = frame->data[0] + ((y * dct_linesize_luma) << 4) + (x << (4 + shift1));
|
2014-01-27 18:10:44 +00:00
|
|
|
dest_u = frame->data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
|
|
|
|
dest_v = frame->data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2015-03-19 22:28:39 +00:00
|
|
|
if (frame->interlaced_frame && ctx->cur_field) {
|
2012-11-21 20:34:46 +00:00
|
|
|
dest_y += frame->linesize[0];
|
|
|
|
dest_u += frame->linesize[1];
|
|
|
|
dest_v += frame->linesize[2];
|
2007-08-04 13:17:53 +00:00
|
|
|
}
|
|
|
|
|
2011-07-20 17:58:27 +00:00
|
|
|
dct_y_offset = dct_linesize_luma << 3;
|
|
|
|
dct_x_offset = 8 << shift1;
|
2014-01-27 18:10:44 +00:00
|
|
|
if (!ctx->is_444) {
|
2014-01-24 10:55:16 +00:00
|
|
|
ctx->idsp.idct_put(dest_y, dct_linesize_luma, ctx->blocks[0]);
|
|
|
|
ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, ctx->blocks[1]);
|
|
|
|
ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, ctx->blocks[4]);
|
|
|
|
ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, ctx->blocks[5]);
|
2014-01-27 18:10:44 +00:00
|
|
|
|
|
|
|
if (!(ctx->avctx->flags & CODEC_FLAG_GRAY)) {
|
|
|
|
dct_y_offset = dct_linesize_chroma << 3;
|
2014-01-24 10:55:16 +00:00
|
|
|
ctx->idsp.idct_put(dest_u, dct_linesize_chroma, ctx->blocks[2]);
|
|
|
|
ctx->idsp.idct_put(dest_v, dct_linesize_chroma, ctx->blocks[3]);
|
|
|
|
ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, ctx->blocks[6]);
|
|
|
|
ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, ctx->blocks[7]);
|
2014-01-27 18:10:44 +00:00
|
|
|
}
|
|
|
|
} else {
|
2014-01-24 10:55:16 +00:00
|
|
|
ctx->idsp.idct_put(dest_y, dct_linesize_luma, ctx->blocks[0]);
|
|
|
|
ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, ctx->blocks[1]);
|
|
|
|
ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, ctx->blocks[6]);
|
|
|
|
ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, ctx->blocks[7]);
|
2014-01-27 18:10:44 +00:00
|
|
|
|
|
|
|
if (!(ctx->avctx->flags & CODEC_FLAG_GRAY)) {
|
|
|
|
dct_y_offset = dct_linesize_chroma << 3;
|
2014-01-24 10:55:16 +00:00
|
|
|
ctx->idsp.idct_put(dest_u, dct_linesize_chroma, ctx->blocks[2]);
|
|
|
|
ctx->idsp.idct_put(dest_u + dct_x_offset, dct_linesize_chroma, ctx->blocks[3]);
|
|
|
|
ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, ctx->blocks[8]);
|
|
|
|
ctx->idsp.idct_put(dest_u + dct_y_offset + dct_x_offset, dct_linesize_chroma, ctx->blocks[9]);
|
|
|
|
ctx->idsp.idct_put(dest_v, dct_linesize_chroma, ctx->blocks[4]);
|
|
|
|
ctx->idsp.idct_put(dest_v + dct_x_offset, dct_linesize_chroma, ctx->blocks[5]);
|
|
|
|
ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, ctx->blocks[10]);
|
|
|
|
ctx->idsp.idct_put(dest_v + dct_y_offset + dct_x_offset, dct_linesize_chroma, ctx->blocks[11]);
|
2014-01-27 18:10:44 +00:00
|
|
|
}
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-11-21 20:34:46 +00:00
|
|
|
static int dnxhd_decode_macroblocks(DNXHDContext *ctx, AVFrame *frame,
|
|
|
|
const uint8_t *buf, int buf_size)
|
2007-03-18 23:25:00 +00:00
|
|
|
{
|
|
|
|
int x, y;
|
|
|
|
for (y = 0; y < ctx->mb_height; y++) {
|
2007-08-04 12:43:31 +00:00
|
|
|
ctx->last_dc[0] =
|
|
|
|
ctx->last_dc[1] =
|
2011-07-20 17:58:27 +00:00
|
|
|
ctx->last_dc[2] = 1 << (ctx->bit_depth + 2); // for levels +2^(bitdepth-1)
|
2007-03-18 23:25:00 +00:00
|
|
|
init_get_bits(&ctx->gb, buf + ctx->mb_scan_index[y], (buf_size - ctx->mb_scan_index[y]) << 3);
|
|
|
|
for (x = 0; x < ctx->mb_width; x++) {
|
|
|
|
//START_TIMER;
|
2012-11-21 20:34:46 +00:00
|
|
|
dnxhd_decode_macroblock(ctx, frame, x, y);
|
2007-03-18 23:25:00 +00:00
|
|
|
//STOP_TIMER("decode macroblock");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-03-28 01:02:48 +00:00
|
|
|
static int dnxhd_decode_frame(AVCodecContext *avctx, void *data,
|
|
|
|
int *got_frame, AVPacket *avpkt)
|
2007-03-18 23:25:00 +00:00
|
|
|
{
|
2009-04-07 15:59:50 +00:00
|
|
|
const uint8_t *buf = avpkt->data;
|
|
|
|
int buf_size = avpkt->size;
|
2007-03-18 23:25:00 +00:00
|
|
|
DNXHDContext *ctx = avctx->priv_data;
|
2013-03-12 02:20:18 +00:00
|
|
|
ThreadFrame frame = { .f = data };
|
2007-03-18 23:25:00 +00:00
|
|
|
AVFrame *picture = data;
|
2007-08-04 13:17:53 +00:00
|
|
|
int first_field = 1;
|
2012-01-19 01:06:29 +00:00
|
|
|
int ret;
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2011-01-29 16:46:18 +00:00
|
|
|
av_dlog(avctx, "frame size %d\n", buf_size);
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2014-03-28 01:02:48 +00:00
|
|
|
decode_coding_unit:
|
2014-02-08 20:25:35 +00:00
|
|
|
if ((ret = dnxhd_decode_header(ctx, picture, buf, buf_size, first_field)) < 0)
|
|
|
|
return ret;
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2010-03-09 00:37:13 +00:00
|
|
|
if ((avctx->width || avctx->height) &&
|
|
|
|
(ctx->width != avctx->width || ctx->height != avctx->height)) {
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %dx%d\n",
|
|
|
|
avctx->width, avctx->height, ctx->width, ctx->height);
|
|
|
|
first_field = 1;
|
|
|
|
}
|
2014-10-28 23:57:07 +00:00
|
|
|
if (avctx->pix_fmt != AV_PIX_FMT_NONE && avctx->pix_fmt != ctx->pix_fmt) {
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "pix_fmt changed: %s -> %s\n",
|
|
|
|
av_get_pix_fmt_name(avctx->pix_fmt), av_get_pix_fmt_name(ctx->pix_fmt));
|
|
|
|
first_field = 1;
|
|
|
|
}
|
2010-03-09 00:37:13 +00:00
|
|
|
|
2014-10-28 23:57:07 +00:00
|
|
|
avctx->pix_fmt = ctx->pix_fmt;
|
2013-10-27 09:02:26 +00:00
|
|
|
ret = ff_set_dimensions(avctx, ctx->width, ctx->height);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2007-08-04 13:17:53 +00:00
|
|
|
if (first_field) {
|
lavc: factorize ff_{thread_,re,}get_buffer error messages.
Coccinelle profile used:
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_get_buffer(ctx, f, flags)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str;
@@
-if ((r = ff_reget_buffer(ctx, f)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_reget_buffer(ctx, f)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
+ return r;
...along with some manual patches for the remaining ones.
2013-03-12 07:41:53 +00:00
|
|
|
if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
|
2012-01-19 01:06:29 +00:00
|
|
|
return ret;
|
2012-11-21 20:34:46 +00:00
|
|
|
picture->pict_type = AV_PICTURE_TYPE_I;
|
|
|
|
picture->key_frame = 1;
|
2007-08-04 13:17:53 +00:00
|
|
|
}
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2012-11-21 20:34:46 +00:00
|
|
|
dnxhd_decode_macroblocks(ctx, picture, buf + 0x280, buf_size - 0x280);
|
2007-03-18 23:25:00 +00:00
|
|
|
|
2012-11-21 20:34:46 +00:00
|
|
|
if (first_field && picture->interlaced_frame) {
|
2007-08-04 13:17:53 +00:00
|
|
|
buf += ctx->cid_table->coding_unit_size;
|
|
|
|
buf_size -= ctx->cid_table->coding_unit_size;
|
|
|
|
first_field = 0;
|
|
|
|
goto decode_coding_unit;
|
|
|
|
}
|
|
|
|
|
2012-11-13 18:35:22 +00:00
|
|
|
*got_frame = 1;
|
2013-03-04 17:17:47 +00:00
|
|
|
return avpkt->size;
|
2007-03-18 23:25:00 +00:00
|
|
|
}
|
|
|
|
|
2008-03-21 03:11:20 +00:00
|
|
|
static av_cold int dnxhd_decode_close(AVCodecContext *avctx)
|
2007-03-18 23:25:00 +00:00
|
|
|
{
|
|
|
|
DNXHDContext *ctx = avctx->priv_data;
|
|
|
|
|
2012-02-09 09:37:58 +00:00
|
|
|
ff_free_vlc(&ctx->ac_vlc);
|
|
|
|
ff_free_vlc(&ctx->dc_vlc);
|
|
|
|
ff_free_vlc(&ctx->run_vlc);
|
2007-03-18 23:25:00 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-01-25 21:40:11 +00:00
|
|
|
AVCodec ff_dnxhd_decoder = {
|
2011-07-17 10:54:31 +00:00
|
|
|
.name = "dnxhd",
|
2013-10-03 20:57:53 +00:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
|
2011-07-17 10:54:31 +00:00
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2012-08-05 09:11:04 +00:00
|
|
|
.id = AV_CODEC_ID_DNXHD,
|
2011-07-17 10:54:31 +00:00
|
|
|
.priv_data_size = sizeof(DNXHDContext),
|
|
|
|
.init = dnxhd_decode_init,
|
|
|
|
.close = dnxhd_decode_close,
|
|
|
|
.decode = dnxhd_decode_frame,
|
2012-01-19 01:06:29 +00:00
|
|
|
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
|
2007-03-18 23:25:00 +00:00
|
|
|
};
|