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