ffmpeg_video.h

Go to the documentation of this file.

/*
 * Copyright (c) 2017 Rafael Antoniello
 *
 * This file is part of MediaProcessors.
 *
 * MediaProcessors 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 3 of the License, or
 * (at your option) any later version.
 *
 * MediaProcessors 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 MediaProcessors. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MEDIAPROCESSORS_SRC_FFMPEG_VIDEO_H_
#define MEDIAPROCESSORS_SRC_FFMPEG_VIDEO_H_

#include <libmediaprocsutils/mem_utils.h>
#include <libmediaprocs/proc.h>

/* **** Definitions **** */

#define SCALE_FLAGS SWS_BICUBIC

/* Forward declarations */
typedef struct AVCodec AVCodec;
typedef struct AVCodecContext AVCodecContext;
typedef struct AVFrame AVFrame;
typedef struct AVPacket AVPacket;
typedef struct AVDictionary AVDictionary;
typedef struct SwsContext SwsContext;
typedef struct video_settings_enc_ctx_s video_settings_enc_ctx_t;
typedef struct video_settings_dec_ctx_s video_settings_dec_ctx_t;

typedef struct ffmpeg_video_enc_ctx_s {
    struct proc_ctx_s proc_ctx;
    const AVCodec *avcodec;
    AVCodecContext *avcodecctx;
    AVDictionary *avdictionary;
    AVFrame *avframe_tmp;
    struct SwsContext *sws_ctx;
    int frame_rate_input;
    int width_input;
    int height_input;
    int ffmpeg_pix_fmt_input;
} ffmpeg_video_enc_ctx_t;

typedef struct ffmpeg_video_dec_ctx_s {
    struct proc_ctx_s proc_ctx;
    const AVCodec *avcodec;
    AVCodecContext *avcodecctx;
} ffmpeg_video_dec_ctx_t;

/* **** Prototypes **** */

int ffmpeg_video_enc_ctx_init(ffmpeg_video_enc_ctx_t *ffmpeg_video_enc_ctx,
        int avcodecid, const video_settings_enc_ctx_t *video_settings_enc_ctx,
        log_ctx_t *log_ctx);

void ffmpeg_video_enc_ctx_deinit(ffmpeg_video_enc_ctx_t *ffmpeg_video_enc_ctx,
        log_ctx_t *log_ctx);

int ffmpeg_video_enc_frame(ffmpeg_video_enc_ctx_t *ffmpeg_video_enc_ctx,
        AVFrame *avframe_iput, fifo_ctx_t* oput_fifo_ctx, log_ctx_t *log_ctx);

int ffmpeg_video_dec_ctx_init(ffmpeg_video_dec_ctx_t *ffmpeg_video_dec_ctx,
        int avcodecid, const video_settings_dec_ctx_t *video_settings_dec_ctx,
        log_ctx_t *log_ctx);

void ffmpeg_video_dec_ctx_deinit(ffmpeg_video_dec_ctx_t *ffmpeg_video_dec_ctx,
        log_ctx_t *log_ctx);

int ffmpeg_video_dec_frame(ffmpeg_video_dec_ctx_t *ffmpeg_video_dec_ctx,
        AVPacket *avpacket_iput, fifo_ctx_t* oput_fifo_ctx, log_ctx_t *log_ctx);

void ffmpeg_video_reset_on_new_settings(proc_ctx_t *proc_ctx,
        volatile void *video_settings_opaque, int flag_is_encoder,
        log_ctx_t *log_ctx);

#endif /* MEDIAPROCESSORS_SRC_FFMPEG_VIDEO_H_ */