diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/aac_ac3_parser.c')
-rw-r--r-- | contrib/ffmpeg/libavcodec/aac_ac3_parser.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/contrib/ffmpeg/libavcodec/aac_ac3_parser.c b/contrib/ffmpeg/libavcodec/aac_ac3_parser.c deleted file mode 100644 index 999a18915..000000000 --- a/contrib/ffmpeg/libavcodec/aac_ac3_parser.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Common AAC and AC3 parser - * Copyright (c) 2003 Fabrice Bellard. - * Copyright (c) 2003 Michael Niedermayer. - * - * 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 "parser.h" -#include "aac_ac3_parser.h" - -int ff_aac_ac3_parse(AVCodecParserContext *s1, - AVCodecContext *avctx, - const uint8_t **poutbuf, int *poutbuf_size, - const uint8_t *buf, int buf_size) -{ - AACAC3ParseContext *s = s1->priv_data; - const uint8_t *buf_ptr; - int len, sample_rate, bit_rate, channels, samples; - - *poutbuf = NULL; - *poutbuf_size = 0; - - buf_ptr = buf; - while (buf_size > 0) { - int size_needed= s->frame_size ? s->frame_size : s->header_size; - len = s->inbuf_ptr - s->inbuf; - - if(len<size_needed){ - len = FFMIN(size_needed - len, buf_size); - memcpy(s->inbuf_ptr, buf_ptr, len); - buf_ptr += len; - s->inbuf_ptr += len; - buf_size -= len; - } - - if (s->frame_size == 0) { - if ((s->inbuf_ptr - s->inbuf) == s->header_size) { - len = s->sync(s->inbuf, &channels, &sample_rate, &bit_rate, - &samples); - if (len == 0) { - /* no sync found : move by one byte (inefficient, but simple!) */ - memmove(s->inbuf, s->inbuf + 1, s->header_size - 1); - s->inbuf_ptr--; - } else { - s->frame_size = len; - /* update codec info */ - avctx->sample_rate = sample_rate; - /* allow downmixing to stereo (or mono for AC3) */ - if(avctx->request_channels > 0 && - avctx->request_channels < channels && - (avctx->request_channels <= 2 || - (avctx->request_channels == 1 && - avctx->codec_id == CODEC_ID_AC3))) { - avctx->channels = avctx->request_channels; - } else { - avctx->channels = channels; - } - avctx->bit_rate = bit_rate; - avctx->frame_size = samples; - } - } - } else { - if(s->inbuf_ptr - s->inbuf == s->frame_size){ - *poutbuf = s->inbuf; - *poutbuf_size = s->frame_size; - s->inbuf_ptr = s->inbuf; - s->frame_size = 0; - break; - } - } - } - return buf_ptr - buf; -} |