On2 AVC decoder

Changelog

@@ -22,6 +22,7 @@ version <next>:
 - Silicon Graphics RLE 8-bit video decoder
 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
 - Silicon Graphics Movie demuxer
+- On2 AVC (Audio for Video) decoder
 
 
 version 10:

configure

@@ -1808,6 +1808,7 @@ mxpeg_decoder_select="mjpeg_decoder"
 nellymoser_decoder_select="mdct sinewin"
 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
 nuv_decoder_select="dsputil lzo"
+on2avc_decoder_select="mdct"
 png_decoder_deps="zlib"
 png_encoder_deps="zlib"
 png_encoder_select="dsputil"

doc/general.texi

@@ -854,6 +854,7 @@ following image formats are supported:
 @item Musepack SV7           @tab     @tab  X
 @item Musepack SV8           @tab     @tab  X
 @item Nellymoser Asao        @tab  X  @tab  X
+@item On2 AVC (Audio for Video Codec) @tab     @tab  X
 @item Opus                   @tab  E  @tab  E
     @tab supported through external library libopus
 @item PCM A-law              @tab  X  @tab  X

libavcodec/Makefile

@@ -278,6 +278,7 @@ OBJS-$(CONFIG_MXPEG_DECODER)           += mxpegdec.o
 OBJS-$(CONFIG_NELLYMOSER_DECODER)      += nellymoserdec.o nellymoser.o
 OBJS-$(CONFIG_NELLYMOSER_ENCODER)      += nellymoserenc.o nellymoser.o
 OBJS-$(CONFIG_NUV_DECODER)             += nuv.o rtjpeg.o
+OBJS-$(CONFIG_ON2AVC_DECODER)          += on2avc.o on2avcdata.o
 OBJS-$(CONFIG_PAF_VIDEO_DECODER)       += paf.o
 OBJS-$(CONFIG_PAF_AUDIO_DECODER)       += paf.o
 OBJS-$(CONFIG_PAM_DECODER)             += pnmdec.o pnm.o

libavcodec/allcodecs.c

@@ -329,6 +329,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER(MPC7,              mpc7);
     REGISTER_DECODER(MPC8,              mpc8);
     REGISTER_ENCDEC (NELLYMOSER,        nellymoser);
+    REGISTER_DECODER(ON2AVC,            on2avc);
     REGISTER_DECODER(PAF_AUDIO,         paf_audio);
     REGISTER_DECODER(QCELP,             qcelp);
     REGISTER_DECODER(QDM2,              qdm2);

libavcodec/avcodec.h

@@ -443,6 +443,7 @@ enum AVCodecID {
     AV_CODEC_ID_TAK,
     AV_CODEC_ID_METASOUND,
     AV_CODEC_ID_PAF_AUDIO,
+    AV_CODEC_ID_ON2AVC,
 
     /* subtitle codecs */
     AV_CODEC_ID_FIRST_SUBTITLE = 0x17000,          ///< A dummy ID pointing at the start of subtitle codecs.

libavcodec/codec_desc.c

@@ -2285,6 +2285,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("Amazing Studio Packed Animation File Audio"),
         .props     = AV_CODEC_PROP_LOSSY,
     },
+    {
+        .id        = AV_CODEC_ID_ON2AVC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "avc",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 Audio for Video Codec"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
 
     /* subtitle codecs */
     {

libavcodec/on2avcdata.h

@@ -0,0 +1,82 @@
+/*
+ * On2 Audio for Video Codec decoder
+ *
+ * Copyright (c) 2013 Konstantin Shishkov
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_ON2AVC_DATA_H
+#define AVCODEC_ON2AVC_DATA_H
+
+#include <stdint.h>
+
+#define ON2AVC_MAX_BANDS 112
+#define ON2AVC_ESC_CB     15
+
+typedef struct On2AVCMode {
+    int num_windows;
+    int num_bands;
+    const int *band_start;
+} On2AVCMode;
+
+extern const On2AVCMode ff_on2avc_modes_40[8];
+extern const On2AVCMode ff_on2avc_modes_44[8];
+
+#define ON2AVC_SCALE_DIFFS 121
+extern const uint32_t ff_on2avc_scale_diff_codes[];
+extern const uint8_t  ff_on2avc_scale_diff_bits[];
+
+extern const uint32_t * const ff_on2avc_quad_cb_codes[];
+extern const uint8_t  * const ff_on2avc_quad_cb_bits[];
+extern const uint16_t * const ff_on2avc_quad_cb_syms[];
+extern const int              ff_on2avc_quad_cb_elems[];
+extern const uint16_t * const ff_on2avc_pair_cb_codes[];
+extern const uint8_t  * const ff_on2avc_pair_cb_bits[];
+extern const uint16_t * const ff_on2avc_pair_cb_syms[];
+extern const int              ff_on2avc_pair_cb_elems[];
+
+extern const float ff_on2avc_window_long_32000[1024];
+extern const float ff_on2avc_window_long_24000[1024];
+extern const float ff_on2avc_window_short[128];
+
+extern const double ff_on2avc_tab_10_1[];
+extern const double ff_on2avc_tab_10_2[];
+extern const double ff_on2avc_tab_20_1[];
+extern const double ff_on2avc_tab_20_2[];
+extern const double ff_on2avc_tab_40_1[];
+extern const double ff_on2avc_tab_40_2[];
+extern const double ff_on2avc_tab_84_1[];
+extern const double ff_on2avc_tab_84_2[];
+extern const double ff_on2avc_tab_84_3[];
+extern const double ff_on2avc_tab_84_4[];
+extern const double* ff_on2avc_tabs_4_10_1[4];
+extern const double* ff_on2avc_tabs_4_10_2[4];
+extern const double* ff_on2avc_tabs_9_20_1[9];
+extern const double* ff_on2avc_tabs_9_20_2[9];
+extern const double* ff_on2avc_tabs_19_40_1[19];
+extern const double* ff_on2avc_tabs_19_40_2[19];
+extern const double* ff_on2avc_tabs_20_84_1[20];
+extern const double* ff_on2avc_tabs_20_84_2[20];
+extern const double* ff_on2avc_tabs_20_84_3[20];
+extern const double* ff_on2avc_tabs_20_84_4[20];
+extern const float ff_on2avc_ctab_1[2048];
+extern const float ff_on2avc_ctab_2[2048];
+extern const float ff_on2avc_ctab_3[2048];
+extern const float ff_on2avc_ctab_4[2048];
+
+#endif /* AVCODEC_ff_on2avc_DATA_H */

libavcodec/version.h

@@ -29,7 +29,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 55
-#define LIBAVCODEC_VERSION_MINOR 48
+#define LIBAVCODEC_VERSION_MINOR 49
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

libavformat/riff.c

@@ -395,6 +395,8 @@ const AVCodecTag ff_codec_wav_tags[] = {
     { AV_CODEC_ID_ADPCM_G722,      0x028F },
     { AV_CODEC_ID_IMC,             0x0401 },
     { AV_CODEC_ID_IAC,             0x0402 },
+    { AV_CODEC_ID_ON2AVC,          0x0500 },
+    { AV_CODEC_ID_ON2AVC,          0x0501 },
     { AV_CODEC_ID_GSM_MS,          0x1500 },
     { AV_CODEC_ID_TRUESPEECH,      0x1501 },
     /* ADTS AAC */