diff options
Diffstat (limited to 'libavcodec/g723_1_parser.c')
-rw-r--r-- | libavcodec/g723_1_parser.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libavcodec/g723_1_parser.c b/libavcodec/g723_1_parser.c new file mode 100644 index 0000000..0305ca3 --- /dev/null +++ b/libavcodec/g723_1_parser.c @@ -0,0 +1,60 @@ +/* + * 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 + */ + +/** + * @file + * G723_1 audio parser + */ + +#include "parser.h" +#include "g723_1.h" + +typedef struct G723_1ParseContext { + ParseContext pc; +} G723_1ParseContext; + +static int g723_1_parse(AVCodecParserContext *s1, AVCodecContext *avctx, + const uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size) +{ + G723_1ParseContext *s = s1->priv_data; + ParseContext *pc = &s->pc; + int next = END_NOT_FOUND; + + if (buf_size > 0) + next = frame_size[buf[0] & 3] * FFMAX(1, avctx->channels); + + if (ff_combine_frame(pc, next, &buf, &buf_size) < 0 || !buf_size) { + *poutbuf = NULL; + *poutbuf_size = 0; + return buf_size; + } + + s1->duration = 240; + + *poutbuf = buf; + *poutbuf_size = buf_size; + return next; +} + +AVCodecParser ff_g723_1_parser = { + .codec_ids = { AV_CODEC_ID_G723_1 }, + .priv_data_size = sizeof(G723_1ParseContext), + .parser_parse = g723_1_parse, + .parser_close = ff_parse_close, +}; |