FFmpeg support
A complete, cross-platform solution to record, convert and stream audio and video.
Detailed introduction: https://www.ffmpeg.org
Install FFmpeg
Download first FFmpeg from here, then install it:
./configure --disable-all --disable-autodetect --disable-podpages --disable-asm --enable-avcodec --enable-avformat --enable-decoders --enable-encoders --enable-demuxers --enable-parsers --enable-protocol='file' --enable-swscale --enable-zlib
make
sudo make install
Add FFmpeg to your project
Add library:
FFmpeg
(for GCC:-lavformat -lavcodec -lavutil -lswscale -lm -lz -lpthread
)
Usage
Enable LV_USE_FFMPEG
in lv_conf.h
.
See the examples below.
- note:
FFmpeg extension doesn't use LVGL's file system. You can simply pass the path to the image or video as usual on your operating system or platform.
Example
Decode image
C code
View on GitHub#include "../../lv_examples.h"
#if LV_BUILD_EXAMPLES
#if LV_USE_FFMPEG
/**
* Open an image from a file
*/
void lv_example_ffmpeg_1(void)
{
lv_obj_t * img = lv_image_create(lv_screen_active());
lv_image_set_src(img, "./lvgl/examples/libs/ffmpeg/ffmpeg.png");
lv_obj_center(img);
}
#else
void lv_example_ffmpeg_1(void)
{
/*TODO
*fallback for online examples*/
lv_obj_t * label = lv_label_create(lv_screen_active());
lv_label_set_text(label, "FFmpeg is not installed");
lv_obj_center(label);
}
#endif
#endif
Decode video
C code
View on GitHub#include "../../lv_examples.h"
#if LV_BUILD_EXAMPLES
#if LV_USE_FFMPEG
/**
* Open a video from a file
*/
void lv_example_ffmpeg_2(void)
{
/*birds.mp4 is downloaded from http://www.videezy.com (Free Stock Footage by Videezy!)
*https://www.videezy.com/abstract/44864-silhouettes-of-birds-over-the-sunset*/
lv_obj_t * player = lv_ffmpeg_player_create(lv_screen_active());
lv_ffmpeg_player_set_src(player, "./lvgl/examples/libs/ffmpeg/birds.mp4");
lv_ffmpeg_player_set_auto_restart(player, true);
lv_ffmpeg_player_set_cmd(player, LV_FFMPEG_PLAYER_CMD_START);
lv_obj_center(player);
}
#else
void lv_example_ffmpeg_2(void)
{
/*TODO
*fallback for online examples*/
lv_obj_t * label = lv_label_create(lv_screen_active());
lv_label_set_text(label, "FFmpeg is not installed");
lv_obj_center(label);
}
#endif
#endif