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author | Vladimir Voroshilov <voroshil@gmail.com> | 2008-08-17 08:43:37 +0000 |
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committer | Vladimir Voroshilov <voroshil@gmail.com> | 2008-08-17 08:43:37 +0000 |
commit | 5209846850a2b00dc1c52fd1afb6986edcdb4dd8 (patch) | |
tree | 09a8e05920715ba90c859ba6800480dd44bbcaac /libavcodec/g729dec.c | |
parent | 720d52c67874d138956ee7ce6e2370356778f55a (diff) | |
download | ffmpeg-streaming-5209846850a2b00dc1c52fd1afb6986edcdb4dd8.zip ffmpeg-streaming-5209846850a2b00dc1c52fd1afb6986edcdb4dd8.tar.gz |
G.729 decoder main code
(just skeleton, contains only parts, explicitly ok'ed by Michael)
Originally committed as revision 14800 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/g729dec.c')
-rw-r--r-- | libavcodec/g729dec.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libavcodec/g729dec.c b/libavcodec/g729dec.c new file mode 100644 index 0000000..9870864 --- /dev/null +++ b/libavcodec/g729dec.c @@ -0,0 +1,52 @@ +/* + * G.729 decoder + * Copyright (c) 2008 Vladimir Voroshilov + * + * 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 + */ +#include <stdlib.h> +#include <inttypes.h> +#include <limits.h> +#include <stdio.h> +#include <string.h> +#include <math.h> +#include <assert.h> + +#include "avcodec.h" +#include "libavutil/avutil.h" +#include "bitstream.h" + +/** + * \brief pseudo random number generator + */ +static inline uint16_t g729_random(uint16_t value) +{ + return 31821 * value + 13849; +} + +AVCodec g729_decoder = +{ + "g729", + CODEC_TYPE_AUDIO, + CODEC_ID_G729, + sizeof(G729_Context), + ff_g729_decoder_init, + NULL, + NULL, + ff_g729_decode_frame, + .long_name = NULL_IF_CONFIG_SMALL("G.729"), +}; |