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61 lines
2.0 KiB
61 lines
2.0 KiB
/* |
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* Copyright (c) 2008 Reimar Döffinger |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/common.h" |
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#include "libavutil/intreadwrite.h" |
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#include "avcodec.h" |
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static int text2movsub(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args, |
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uint8_t **poutbuf, int *poutbuf_size, |
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const uint8_t *buf, int buf_size, int keyframe){ |
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if (buf_size > 0xffff) return 0; |
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*poutbuf_size = buf_size + 2; |
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*poutbuf = av_malloc(*poutbuf_size + AV_INPUT_BUFFER_PADDING_SIZE); |
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if (!*poutbuf) |
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return AVERROR(ENOMEM); |
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AV_WB16(*poutbuf, buf_size); |
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memcpy(*poutbuf + 2, buf, buf_size); |
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return 1; |
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} |
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AVBitStreamFilter ff_text2movsub_bsf={ |
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"text2movsub", |
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0, |
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text2movsub, |
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}; |
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static int mov2textsub(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args, |
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uint8_t **poutbuf, int *poutbuf_size, |
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const uint8_t *buf, int buf_size, int keyframe){ |
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if (buf_size < 2) return 0; |
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*poutbuf_size = FFMIN(buf_size - 2, AV_RB16(buf)); |
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*poutbuf = av_malloc(*poutbuf_size + AV_INPUT_BUFFER_PADDING_SIZE); |
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if (!*poutbuf) |
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return AVERROR(ENOMEM); |
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memcpy(*poutbuf, buf + 2, *poutbuf_size); |
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return 1; |
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} |
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AVBitStreamFilter ff_mov2textsub_bsf={ |
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"mov2textsub", |
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0, |
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mov2textsub, |
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};
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