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https://github.com/Motion-Project/motion.git
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a838d0527e
The previous method for calculating the PTS was to extract the time when the particular function was being executed. e.g. The time when the open ffmpeg function was executed, the time that the image was encoded into the movie. This commit revises that behaviour to use instead the timevalues that are attached to each image. This is done to handle the precapture situation in which all the precapture images were sent in at once at the start of the event. For the open function, the timevalue is obtained from the oldest image in the ring buffer.
103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
#ifndef _INCLUDE_FFMPEG_H_
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#define _INCLUDE_FFMPEG_H_
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#include <stdio.h>
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#include <stdarg.h>
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#include <sys/time.h>
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#include "config.h"
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#define TIMELAPSE_NONE 0 /* No timelapse, regular processing */
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#define TIMELAPSE_APPEND 1 /* Use append version of timelapse */
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#define TIMELAPSE_NEW 2 /* Use create new file version of timelapse */
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#ifdef HAVE_FFMPEG
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#include <errno.h>
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#include <libavformat/avformat.h>
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#include <libavutil/imgutils.h>
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#include <libavutil/mathematics.h>
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#if (LIBAVFORMAT_VERSION_MAJOR >= 56)
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#define MY_PIX_FMT_YUV420P AV_PIX_FMT_YUV420P
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#define MY_PIX_FMT_YUVJ420P AV_PIX_FMT_YUVJ420P
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#define MyPixelFormat AVPixelFormat
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#else
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#define MY_PIX_FMT_YUV420P PIX_FMT_YUV420P
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#define MY_PIX_FMT_YUVJ420P PIX_FMT_YUVJ420P
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#define MyPixelFormat PixelFormat
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#endif
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struct ffmpeg {
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AVFormatContext *oc;
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AVStream *video_st;
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AVCodecContext *c;
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AVFrame *picture; /* contains default image pointers */
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uint8_t *video_outbuf;
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int video_outbuf_size;
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void *udata; /* U & V planes for greyscale images */
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int vbr; /* variable bitrate setting */
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char codec[20]; /* codec name */
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int tlapse;
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int64_t last_pts;
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struct timeval start_time;
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};
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AVFrame *my_frame_alloc(void);
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void my_frame_free(AVFrame *frame);
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int ffmpeg_put_frame(struct ffmpeg *, AVFrame *, const struct timeval *tv1);
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void ffmpeg_cleanups(struct ffmpeg *);
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AVFrame *ffmpeg_prepare_frame(struct ffmpeg *, unsigned char *,
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unsigned char *, unsigned char *);
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int my_image_get_buffer_size(enum MyPixelFormat pix_fmt, int width, int height);
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int my_image_copy_to_buffer(AVFrame *frame,uint8_t *buffer_ptr,enum MyPixelFormat pix_fmt,int width,int height,int dest_size);
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int my_image_fill_arrays(AVFrame *frame,uint8_t *buffer_ptr,enum MyPixelFormat pix_fmt,int width,int height);
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void my_packet_unref(AVPacket pkt);
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#else /* No FFMPEG */
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struct ffmpeg {
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void *udata;
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int dummy;
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};
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#endif /* HAVE_FFMPEG */
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/* Now the functions that are ok for both situations */
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void ffmpeg_init(void);
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void ffmpeg_finalise(void);
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struct ffmpeg *ffmpeg_open(
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const char *ffmpeg_video_codec,
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char *filename,
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unsigned char *y, /* YUV420 Y plane */
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unsigned char *u, /* YUV420 U plane */
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unsigned char *v, /* YUV420 V plane */
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int width,
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int height,
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int rate, /* framerate, fps */
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int bps, /* bitrate; bits per second */
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int vbr, /* variable bitrate */
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int tlapse,
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const struct timeval *tv1
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);
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int ffmpeg_put_image(struct ffmpeg *, const struct timeval *tv1);
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int ffmpeg_put_other_image(
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struct ffmpeg *ffmpeg,
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unsigned char *y,
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unsigned char *u,
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unsigned char *v,
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const struct timeval *tv1
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);
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void ffmpeg_close(struct ffmpeg *);
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void ffmpeg_avcodec_log(void *, int, const char *, va_list);
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#endif /* _INCLUDE_FFMPEG_H_ */
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