diff options
Diffstat (limited to 'ffmpeg/libavcodec/gsmdec_data.h')
| -rw-r--r-- | ffmpeg/libavcodec/gsmdec_data.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/ffmpeg/libavcodec/gsmdec_data.h b/ffmpeg/libavcodec/gsmdec_data.h new file mode 100644 index 0000000..fd89ed6 --- /dev/null +++ b/ffmpeg/libavcodec/gsmdec_data.h @@ -0,0 +1,43 @@ +/* + * gsm 06.10 decoder data + * Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de> + * + * 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 + */ + +#ifndef AVCODEC_GSMDEC_DATA_H +#define AVCODEC_GSMDEC_DATA_H + +#include <stdint.h> +#include "avcodec.h" + +typedef struct GSMContext { + // Contains first 120 elements from the previous frame + // (used by long_term_synth according to the "lag"), + // then in the following 160 elements the current + // frame is constructed. + int16_t ref_buf[280]; + int v[9]; + int lar[2][8]; + int lar_idx; + int msr; +} GSMContext; + +extern const uint16_t ff_gsm_long_term_gain_tab[4]; +extern const int16_t ff_gsm_dequant_tab[64][8]; + +#endif /* AVCODEC_GSMDEC_DATA_H */ |