diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/h261_parser.c')
-rw-r--r-- | contrib/ffmpeg/libavcodec/h261_parser.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/contrib/ffmpeg/libavcodec/h261_parser.c b/contrib/ffmpeg/libavcodec/h261_parser.c deleted file mode 100644 index 3f3aac6e4..000000000 --- a/contrib/ffmpeg/libavcodec/h261_parser.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * H261 parser - * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> - * Copyright (c) 2004 Maarten Daniels - * - * 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 h261_parser.c - * h261codec. - */ - -#include "parser.h" - - -static int h261_find_frame_end(ParseContext *pc, AVCodecContext* avctx, const uint8_t *buf, int buf_size){ - int vop_found, i, j; - uint32_t state; - - vop_found= pc->frame_start_found; - state= pc->state; - - for(i=0; i<buf_size && !vop_found; i++){ - state= (state<<8) | buf[i]; - for(j=0; j<8; j++){ - if(((state>>j)&0xFFFFF0) == 0x000100){ - vop_found=1; - break; - } - } - } - if(vop_found){ - for(; i<buf_size; i++){ - state= (state<<8) | buf[i]; - for(j=0; j<8; j++){ - if(((state>>j)&0xFFFFF0) == 0x000100){ - pc->frame_start_found=0; - pc->state= (state>>(3*8))+0xFF00; - return i-2; - } - } - } - } - - pc->frame_start_found= vop_found; - pc->state= state; - return END_NOT_FOUND; -} - -static int h261_parse(AVCodecParserContext *s, - AVCodecContext *avctx, - const uint8_t **poutbuf, int *poutbuf_size, - const uint8_t *buf, int buf_size) -{ - ParseContext *pc = s->priv_data; - int next; - - next= h261_find_frame_end(pc,avctx, buf, buf_size); - if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) { - *poutbuf = NULL; - *poutbuf_size = 0; - return buf_size; - } - *poutbuf = buf; - *poutbuf_size = buf_size; - return next; -} - -AVCodecParser h261_parser = { - { CODEC_ID_H261 }, - sizeof(ParseContext), - NULL, - h261_parse, - ff_parse_close, -}; |