70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
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Copyright (C) 2020 by Morten Bøgeskov <source@kosmisk.dk>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libavutil/pixfmt.h>
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/**
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* Data structure for decoder
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*/
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struct v4l2_decoder {
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const AVCodec *codec;
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AVCodecContext *context;
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AVPacket *packet;
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AVFrame *frame;
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};
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/**
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* Initialize the decoder.
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* The decoder must be destroyed on failure.
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*
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* @param decoder the decoder structure
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* @param pixfmt which codec is used
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* @return non-zero on failure
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*/
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int v4l2_init_decoder(struct v4l2_decoder *decoder, int pixfmt);
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/**
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* Free any data associated with the decoder.
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*
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* @param decoder the decoder structure
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*/
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void v4l2_destroy_decoder(struct v4l2_decoder *decoder);
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/**
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* Decode a jpeg or h264 frame into an obs frame
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*
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* @param out the obs frame to decode into
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* @param data the codec data
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* @param length length of the data
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* @param decoder the decoder as initialized by v4l2_init_decoder
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* @return non-zero on failure
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*/
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int v4l2_decode_frame(struct obs_source_frame *out, uint8_t *data,
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size_t length, struct v4l2_decoder *decoder);
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#ifdef __cplusplus
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}
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#endif
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