diff options
| -rw-r--r-- | Changelog | 1 | ||||
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | doc/ffmpeg-doc.texi | 1 | ||||
| -rw-r--r-- | libavcodec/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/allcodecs.c | 1 | ||||
| -rw-r--r-- | libavcodec/avcodec.h | 6 | ||||
| -rw-r--r-- | libavcodec/dnxhddata.h | 106 | ||||
| -rw-r--r-- | libavcodec/dnxhddec.c | 368 |
8 files changed, 483 insertions, 2 deletions
@@ -74,6 +74,7 @@ version <next> - GSM-MS encoder and decoder - DCA decoder - DXA demuxer and decoder +- DNxHD decoder version 0.4.9-pre1: diff --git a/MAINTAINERS b/MAINTAINERS index 188c1de779..111ea8e56f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -113,6 +113,7 @@ Codecs: cljr Alex Beregszaszi cook.c, cookdata.h Benjamin Larsson cscd.c Reimar Doeffinger + dnxhddec.c Baptiste Coudurier dpcm.c Mike Melanson dxa.c Kostya Shishkov dv.c Roman Shaposhnik diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi index c91b3b12b3..854631c0a2 100644 --- a/doc/ffmpeg-doc.texi +++ b/doc/ffmpeg-doc.texi @@ -1009,6 +1009,7 @@ following image formats are supported: @item Cin Video @tab @tab X @tab Codec used in Delphine Software games. @item Tiertex Seq Video @tab @tab X @tab Codec used in DOS CDROM FlashBack game. @item DXA Video @tab @tab X @tab Codec originally used in Feeble Files game. +@item AVID DNxHD @tab @tab X @tab aka SMPTE VC3 @end multitable @code{X} means that encoding (resp. decoding) is supported. diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 3c6317703c..3d165286dd 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -64,6 +64,7 @@ OBJS-$(CONFIG_COOK_DECODER) += cook.o OBJS-$(CONFIG_CSCD_DECODER) += cscd.o OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o OBJS-$(CONFIG_DCA_DECODER) += dca.o +OBJS-$(CONFIG_DNXHD_DECODER) += dnxhddec.o OBJS-$(CONFIG_DSICINVIDEO_DECODER) += dsicinav.o OBJS-$(CONFIG_DSICINAUDIO_DECODER) += dsicinav.o OBJS-$(CONFIG_DVBSUB_DECODER) += dvbsubdec.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 57460c689e..6045c93d65 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -65,6 +65,7 @@ void avcodec_register_all(void) REGISTER_DECODER(CSCD, cscd); REGISTER_DECODER(CYUV, cyuv); REGISTER_DECODER(DCA, dca); + REGISTER_DECODER(DNXHD, dnxhd); REGISTER_DECODER(DSICINVIDEO, dsicinvideo); REGISTER_ENCDEC (DVVIDEO, dvvideo); REGISTER_DECODER(DXA, dxa); diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 048bc890b9..ead4dc8dfe 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -37,8 +37,8 @@ extern "C" { #define AV_STRINGIFY(s) AV_TOSTRING(s) #define AV_TOSTRING(s) #s -#define LIBAVCODEC_VERSION_INT ((51<<16)+(39<<8)+0) -#define LIBAVCODEC_VERSION 51.39.0 +#define LIBAVCODEC_VERSION_INT ((51<<16)+(40<<8)+0) +#define LIBAVCODEC_VERSION 51.40.0 #define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT #define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION) @@ -151,6 +151,7 @@ enum CodecID { CODEC_ID_GIF, CODEC_ID_FFH264, CODEC_ID_DXA, + CODEC_ID_DNXHD, /* various pcm "codecs" */ CODEC_ID_PCM_S16LE= 0x10000, @@ -2231,6 +2232,7 @@ extern AVCodec cook_decoder; extern AVCodec cscd_decoder; extern AVCodec cyuv_decoder; extern AVCodec dca_decoder; +extern AVCodec dnxhd_decoder; extern AVCodec dsicinaudio_decoder; extern AVCodec dsicinvideo_decoder; extern AVCodec dvvideo_decoder; diff --git a/libavcodec/dnxhddata.h b/libavcodec/dnxhddata.h new file mode 100644 index 0000000000..5d5aa528b5 --- /dev/null +++ b/libavcodec/dnxhddata.h @@ -0,0 +1,106 @@ +/* + * VC3/DNxHD decoder. + * Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>. + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU 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 + */ + +static const uint8_t dnxhd_1238_luma_weigth[] = { + 0, 32, 32, 33, 34, 33, 33, 33, + 33, 33, 33, 33, 33, 35, 37, 37, + 36, 36, 35, 36, 38, 38, 36, 35, + 36, 37, 38, 41, 42, 41, 39, 38, + 38, 38, 39, 41, 42, 41, 39, 39, + 40, 41, 43, 44, 44, 44, 44, 44, + 45, 47, 47, 47, 49, 50, 51, 51, + 51, 53, 55, 57, 58, 59, 57, 57, +}; + +static const uint8_t dnxhd_1238_chroma_weigth[] = { + 0, 32, 35, 35, 35, 34, 34, 35, + 39, 43, 45, 45, 41, 39, 40, 41, + 42, 44, 48, 55, 59, 63, 65, 59, + 53, 52, 52, 55, 61, 62, 58, 58, + 63, 66, 66, 65, 70, 74, 70, 66, + 65, 68, 75, 77, 74, 74, 77, 76, + 73, 73, 73, 73, 76, 80, 89, 90, + 82, 77, 80, 86, 84, 82, 82, 82, +}; + +/* FIXME permute */ +static const uint8_t dnxhd_1243_luma_weigth[] = { + 0,32,35,35,38,40,44,45, + 32,33,35,35,39,42,44,45, + 33,35,34,37,41,42,45,45, + 35,35,37,40,41,44,45,48, + 35,37,38,40,43,45,47,48, + 36,36,38,40,45,47,48,47, + 35,36,38,41,45,46,47,48, + 36,37,39,41,44,45,47,47, +}; + +/* FIXME permute */ +static const uint8_t dnxhd_1243_chroma_weigth[] = { + 0,32,37,39,41,42,45,45, + 36,36,39,41,43,45,46,45, + 37,41,41,43,45,44,45,46, + 43,42,43,46,44,45,46,48, + 43,44,47,45,44,46,47,49, + 44,46,44,45,45,47,48,47, + 44,42,46,44,45,46,47,48, + 41,43,45,44,45,46,47,47, +}; + +static const uint8_t dnxhd_1238_dc_codes[12] = { + 0, 12, 13, 1, 2, 3, 4, 5, 14, 30, 62, 63, +}; + +static const uint8_t dnxhd_1238_dc_bits[12] = { + 3, 4, 4, 3, 3, 3, 3, 3, 4, 5, 6, 6, +}; + +static const uint16_t dnxhd_1238_ac_codes[257] = { + 0, 1, 4, 10, 11, 24, 25, 26, 54, 55, 56, 57, 116, 117, 118, 119, 240, 241, 242, 243, 244, 245, 492, 493, 494, 495, 496, 497, 498, 499, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 4056, 4057, 4058, 4059, 4060, 4061, 4062, 4063, 4064, 4065, 4066, 4067, 4068, 4069, 8140, 8141, 8142, 8143, 8144, 8145, 8146, 8147, 8148, 8149, 8150, 8151, 8152, 8153, 8154, 8155, 8156, 16314, 16315, 16316, 16317, 16318, 16319, 16320, 16321, 16322, 16323, 16324, 16325, 16326, 16327, 16328, 16329, 16330, 16331, 16332, 16333, 16334, 16335, 16336, 16337, 16338, 32678, 32679, 32680, 32681, 32682, 32683, 32684, 32685, 32686, 32687, 32688, 32689, 32690, 32691, 32692, 32693, 32694, 32695, 32696, 32697, 32698, 32699, 32700, 32701, 32702, 32703, 32704, 32705, 65412, 65413, 65414, 65415, 65416, 65417, 65418, 65419, 65420, 65421, 65422, 65423, 65424, 65425, 65426, 65427, 65428, 65429, 65430, 65431, 65432, 65433, 65434, 65435, 65436, 65437, 65438, 65439, 65440, 65441, 65442, 65443, 65444, 65445, 65446, 65447, 65448, 65449, 65450, 65451, 65452, 65453, 65454, 65455, 65456, 65457, 65458, 65459, 65460, 65461, 65462, 65463, 65464, 65465, 65466, 65467, 65468, 65469, 65470, 65471, 65472, 65473, 65474, 65475, 65476, 65477, 65478, 65479, 65480, 65481, 65482, 65483, 65484, 65485, 65486, 65487, 65488, 65489, 65490, 65491, 65492, 65493, 65494, 65495, 65496, 65497, 65498, 65499, 65500, 65501, 65502, 65503, 65504, 65505, 65506, 65507, 65508, 65509, 65510, 65511, 65512, 65513, 65514, 65515, 65516, 65517, 65518, 65519, 65520, 65521, 65522, 65523, 65524, 65525, 65526, 65527, 65528, 65529, 65530, 65531, 65532, 65533, 65534, 65535, +}; + +static const uint8_t dnxhd_1238_ac_bits[257] = { + 2, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, +}; + +static const uint8_t dnxhd_1238_ac_level[257] = { + 1, 1, 2, 3, 0, 4, 5, 2, 6, 7, 8, 3, 9, 10, 11, 4, 12, 13, 14, 15, 16, 5, 17, 18, 19, 20, 21, 22, 6, 7, 23, 24, 25, 26, 27, 28, 29, 8, 9, 30, 31, 32, 33, 34, 35, 36, 37, 10, 11, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 12, 13, 14, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 15, 16, 17, 18, 62, 63, 64, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 22, 23, 24, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 40, 25, 26, 27, 28, 29, 30, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, +}; /* 0 is EOB */ + +static const uint8_t dnxhd_1238_ac_run_flag[257] = { + 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, +}; + +static const uint8_t dnxhd_1238_ac_index_flag[257] = { + 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, 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, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 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, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, +}; + +static const uint16_t dnxhd_1238_run_codes[62] = { + 0, 4, 10, 11, 24, 25, 26, 27, 56, 57, 58, 59, 120, 242, 486, 487, 488, 489, 980, 981, 982, 983, 984, 985, 986, 987, 988, 989, 990, 991, 992, 993, 994, 995, 996, 997, 998, 999, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, +}; + +static const uint8_t dnxhd_1238_run_bits[62] = { + 1, 3, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, +}; + +static const uint8_t dnxhd_1238_run[62] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20, 21, 17, 18, 19, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, +}; diff --git a/libavcodec/dnxhddec.c b/libavcodec/dnxhddec.c new file mode 100644 index 0000000000..36232be1b7 --- /dev/null +++ b/libavcodec/dnxhddec.c @@ -0,0 +1,368 @@ +/* + * VC3/DNxHD decoder. + * Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>. + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU 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 + */ + +//#define TRACE +//#define DEBUG + +#include "avcodec.h" +#include "bitstream.h" +#include "dnxhddata.h" +#include "dsputil.h" +#include "mpegvideo.h" + +typedef struct { + int cid; + unsigned int width, height; + int interlaced; + unsigned int frame_size; + int index_bits; + int bit_depth; + const uint8_t *luma_weigth, *chroma_weigth; + const uint8_t *dc_codes, *dc_bits; + const uint16_t *ac_codes; + const uint8_t *ac_bits, *ac_level; + const uint8_t *ac_run_flag, *ac_index_flag; + const uint16_t *run_codes; + const uint8_t *run_bits, *run; +} CIDEntry; + +typedef struct { + AVCodecContext *avctx; + AVFrame picture; + GetBitContext gb; + int cid; ///< compression id + unsigned int width, height; + unsigned int mb_width, mb_height; + uint32_t mb_scan_index[68]; /* max for 1080p */ + int cur_field; ///< current interlaced field + int index_bits; ///< length of index value + VLC ac_vlc, dc_vlc, run_vlc; + const uint8_t *ac_level, *run; + const uint8_t *ac_run_flag, *ac_index_flag; + const uint8_t *luma_weigth, *chroma_weigth; + int last_dc[3]; + DSPContext dsp; + DECLARE_ALIGNED_16(DCTELEM, blocks[8][64]); + DECLARE_ALIGNED_8(ScanTable, scantable); + const CIDEntry *cid_table; +} DNXHDContext; + +static const CIDEntry cid_table[] = { + { 1238, 1920, 1080, 0, 917504, 4, 8, + dnxhd_1238_luma_weigth, dnxhd_1238_chroma_weigth, + dnxhd_1238_dc_codes, dnxhd_1238_dc_bits, + dnxhd_1238_ac_codes, dnxhd_1238_ac_bits, dnxhd_1238_ac_level, + dnxhd_1238_ac_run_flag, dnxhd_1238_ac_index_flag, + dnxhd_1238_run_codes, dnxhd_1238_run_bits, dnxhd_1238_run }, +/* { 1243, 1920, 1080, 1, 917504, 4, 8, */ +/* dnxhd_1243_luma_weigth, dnxhd_1243_chroma_weigth, */ +/* dnxhd_1238_dc_codes, dnxhd_1238_dc_bits, */ +/* dnxhd_1238_ac_codes, dnxhd_1238_ac_bits, dnxhd_1238_ac_level, */ +/* dnxhd_1238_ac_run_flag, dnxhd_1238_ac_index_flag, */ +/* dnxhd_1238_run_codes, dnxhd_1238_run_bits, dnxhd_1238_run }, */ +}; + +static int dnxhd_get_cid_table(int cid) +{ + int i; + for (i = 0; i < sizeof(cid_table)/sizeof(CIDEntry); i++) + if (cid_table[i].cid == cid) + return i; + return -1; +} + +#define DNXHD_VLC_BITS 9 +#define DNXHD_DC_VLC_BITS 6 + +static int dnxhd_decode_init(AVCodecContext *avctx) +{ + DNXHDContext *ctx = avctx->priv_data; + + ctx->avctx = avctx; + dsputil_init(&ctx->dsp, avctx); + avctx->coded_frame = &ctx->picture; + ctx->picture.type = FF_I_TYPE; + return 0; +} + +static int dnxhd_init_vlc(DNXHDContext *ctx, int cid) +{ + if (!ctx->cid_table) { + int index; + + if ((index = dnxhd_get_cid_table(cid)) < 0) { + av_log(ctx->avctx, AV_LOG_ERROR, "unsupported cid %d\n", cid); + return -1; + } + ctx->cid_table = &cid_table[index]; + init_vlc(&ctx->ac_vlc, DNXHD_VLC_BITS, 257, + cid_table->ac_bits, 1, 1, + cid_table->ac_codes, 2, 2, 0); + init_vlc(&ctx->dc_vlc, DNXHD_DC_VLC_BITS, 12, + cid_table->dc_bits, 1, 1, + cid_table->dc_codes, 1, 1, 0); + init_vlc(&ctx->run_vlc, DNXHD_VLC_BITS, 62, + cid_table->run_bits, 1, 1, + cid_table->run_codes, 2, 2, 0); + + ctx->run = cid_table->run; + ctx->ac_level = cid_table->ac_level; + ctx->ac_run_flag = cid_table->ac_run_flag; + ctx->ac_index_flag = cid_table->ac_index_flag; + ctx->luma_weigth = cid_table->luma_weigth; + ctx->chroma_weigth = cid_table->chroma_weigth; + + ctx->index_bits = cid_table->index_bits; + + ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable, ff_zigzag_direct); + } + return 0; +} + +static int dnxhd_decode_header(DNXHDContext *ctx, uint8_t *buf, int buf_size) +{ + static const uint8_t header_prefix[] = { 0x00, 0x00, 0x02, 0x80, 0x01 }; + int i; + + if (buf_size < 0x280) + return -1; + + if (memcmp(buf, header_prefix, 5)) { + av_log(ctx->avctx, AV_LOG_ERROR, "error in header\n"); + return -1; + } + if (buf[5] & 2) {/* interlaced FIXME top or bottom */ + ctx->picture.interlaced_frame = 1; + av_log(ctx->avctx, AV_LOG_DEBUG, "interlaced %d\n", buf[5] & 3); + } + + ctx->height = AV_RB16(buf + 0x18); + ctx->width = AV_RB16(buf + 0x1a); + + dprintf(ctx->avctx, AV_LOG_DEBUG, "width %d, heigth %d\n", ctx->width, ctx->height); + + if (buf[0x21] & 0x80) { + av_log(ctx->avctx, AV_LOG_ERROR, "10 bit per component\n"); + return -1; + } + + ctx->cid = AV_RB32(buf + 0x28); + dprintf(ctx->avctx, AV_LOG_DEBUG, "compression id %d\n", ctx->cid); + + if (dnxhd_init_vlc(ctx, ctx->cid) < 0) + return -1; + + if (buf_size < ctx->cid_table->frame_size) { + av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size\n"); + return -1; + } + + ctx->mb_width = ctx->width>>4; + ctx->mb_height = buf[0x16d]; + + if (ctx->mb_height > 68) { + av_log(ctx->avctx, AV_LOG_ERROR, "mb height too big\n"); + return -1; + } + + dprintf(ctx->avctx, AV_LOG_DEBUG, "mb width %d, mb height %d\n", ctx->mb_width, ctx->mb_height); + for (i = 0; i < ctx->mb_height; i++) { + ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i<<2)); + dprintf(ctx->avctx, AV_LOG_DEBUG, "mb scan index %d\n", ctx->mb_scan_index[i]); + if (buf_size < ctx->mb_scan_index[i] + 0x280) { + av_log(ctx->avctx, AV_LOG_ERROR, "invalid mb scan index\n"); + return -1; + } + } + + return 0; +} + +static int dnxhd_decode_dc(DNXHDContext *ctx) +{ + int len; + + len = get_vlc2(&ctx->gb, ctx->dc_vlc.table, DNXHD_DC_VLC_BITS, 1); + return len ? get_xbits(&ctx->gb, len) : 0; +} + +static void dnxhd_decode_dct_block(DNXHDContext *ctx, DCTELEM *block, int n, int qscale) +{ + int i, j, index, index2; + int level, component, sign; + const uint8_t *weigth_matrix; + + if (n&2) { + component = 1 + (n&1); + weigth_matrix = ctx->chroma_weigth; + } else { + component = 0; + weigth_matrix = ctx->luma_weigth; + } + + ctx->last_dc[component] += dnxhd_decode_dc(ctx); + block[0] = ctx->last_dc[component]; + //av_log(ctx->avctx, AV_LOG_DEBUG, "dc %d\n", block[0]); + for (i = 1; ; i++) { + index = get_vlc2(&ctx->gb, ctx->ac_vlc.table, DNXHD_VLC_BITS, 2); + //av_log(ctx->avctx, AV_LOG_DEBUG, "index %d\n", index); + level = ctx->ac_level[index]; + if (!level) { /* EOB */ + //av_log(ctx->avctx, AV_LOG_DEBUG, "EOB\n"); + return; + } + sign = get_sbits(&ctx->gb, 1); + + if (ctx->ac_index_flag[index]) { + level += get_bits(&ctx->gb, ctx->index_bits)<<6; + } + + if (ctx->ac_run_flag[index]) { + index2 = get_vlc2(&ctx->gb, ctx->run_vlc.table, DNXHD_VLC_BITS, 2); + i += ctx->run[index2]; + } + + j = ctx->scantable.permutated[i]; + //av_log(ctx->avctx, AV_LOG_DEBUG, "j %d\n", j); + //av_log(ctx->avctx, AV_LOG_DEBUG, "level %d, weigth %d\n", level, weigth_matrix[i]); + level = (2*level+1) * qscale * weigth_matrix[i]; + if (weigth_matrix[i] != 32) // FIXME 10bit + level += 32; + level >>= 6; + level = (level^sign) - sign; + + if (i > 63) { + av_log(ctx->avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", n, i); + return; + } + + //av_log(NULL, AV_LOG_DEBUG, "i %d, j %d, end level %d\n", i, j, level); + block[j] = level; + } +} + +static int dnxhd_decode_macroblock(DNXHDContext *ctx, int x, int y) +{ + int dct_linesize_luma = ctx->picture.linesize[0]; + int dct_linesize_chroma = ctx->picture.linesize[1]; + uint8_t *dest_y, *dest_u, *dest_v; + int dct_offset; + int qscale, i; + + ctx->dsp.clear_blocks(ctx->blocks[0]); + ctx->dsp.clear_blocks(ctx->blocks[2]); // FIXME change clear blocks to take block amount + + qscale = get_bits(&ctx->gb, 11); + skip_bits1(&ctx->gb); + //av_log(ctx->avctx, AV_LOG_DEBUG, "qscale %d\n", qscale); + + for (i = 0; i < 8; i++) { + dnxhd_decode_dct_block(ctx, ctx->blocks[i], i, qscale); + } + dest_y = ctx->picture.data[0] + ((y * dct_linesize_luma) << 4) + (x << 4); + dest_u = ctx->picture.data[1] + ((y * dct_linesize_chroma) << 4) + (x << 3); + dest_v = ctx->picture.data[2] + ((y * dct_linesize_chroma) << 4) + (x << 3); + + dct_offset = dct_linesize_luma << 3; + ctx->dsp.idct_put(dest_y, dct_linesize_luma, ctx->blocks[0]); + ctx->dsp.idct_put(dest_y + 8, dct_linesize_luma, ctx->blocks[1]); + ctx->dsp.idct_put(dest_y + dct_offset, dct_linesize_luma, ctx->blocks[4]); + ctx->dsp.idct_put(dest_y + dct_offset + 8, dct_linesize_luma, ctx->blocks[5]); + + if (!(ctx->avctx->flags & CODEC_FLAG_GRAY)) { + dct_offset = dct_linesize_chroma << 3; + ctx->dsp.idct_put(dest_u, dct_linesize_chroma, ctx->blocks[2]); + ctx->dsp.idct_put(dest_v, dct_linesize_chroma, ctx->blocks[3]); + ctx->dsp.idct_put(dest_u + dct_offset, dct_linesize_chroma, ctx->blocks[6]); + ctx->dsp.idct_put(dest_v + dct_offset, dct_linesize_chroma, ctx->blocks[7]); + } + + return 0; +} + +static int dnxhd_decode_macroblocks(DNXHDContext *ctx, uint8_t *buf, int buf_size) +{ + int x, y; + for (y = 0; y < ctx->mb_height; y++) { + memset(ctx->last_dc, 4, sizeof(ctx->last_dc)); // 4 for levels +128 + 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; + dnxhd_decode_macroblock(ctx, x, y); + //STOP_TIMER("decode macroblock"); + } + } + return 0; +} + +static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *data_size, + uint8_t *buf, int buf_size) +{ + DNXHDContext *ctx = avctx->priv_data; + AVFrame *picture = data; + + dprintf(avctx, AV_LOG_DEBUG, "frame size %d\n", buf_size); + + if (dnxhd_decode_header(ctx, buf, buf_size) < 0) + return -1; + + avctx->pix_fmt = PIX_FMT_YUV422P; + if (avcodec_check_dimensions(avctx, ctx->width, ctx->height)) + return -1; + avcodec_set_dimensions(avctx, ctx->width, ctx->height); + + if (ctx->picture.data[0]) + avctx->release_buffer(avctx, &ctx->picture); + if (avctx->get_buffer(avctx, &ctx->picture) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return -1; + } + + dnxhd_decode_macroblocks(ctx, buf + 0x280, buf_size - 0x280); + + *picture = ctx->picture; + *data_size = sizeof(AVPicture); + return 0; +} + +static int dnxhd_decode_close(AVCodecContext *avctx) +{ + DNXHDContext *ctx = avctx->priv_data; + + if(ctx->picture.data[0]) + avctx->release_buffer(avctx, &ctx->picture); + free_vlc(&ctx->ac_vlc); + free_vlc(&ctx->dc_vlc); + free_vlc(&ctx->run_vlc); + return 0; +} + +AVCodec dnxhd_decoder = { + "dnxhd", + CODEC_TYPE_VIDEO, + CODEC_ID_DNXHD, + sizeof(DNXHDContext), + dnxhd_decode_init, + NULL, + dnxhd_decode_close, + dnxhd_decode_frame, + CODEC_CAP_DR1, +}; |