「App:Library:LVGL:docs:3rd party libraries:FFmpeg support」の版間の差分

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https://docs.lvgl.io/8.2/libs/ffmpeg.html
 
https://docs.lvgl.io/8.2/libs/ffmpeg.html
 
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= FFmpeg support =
 
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!英文
 
!英文
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FFmpeg A complete, cross-platform solution to record, convert and stream audio and video.
 
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= FFmpeg support =
 
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FFmpeg A complete, cross-platform solution to record, convert and stream audio and video.
 
  
 
== Install FFmpeg ==
 
== Install FFmpeg ==
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!英文
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* Download FFmpeg from here
 
* Download FFmpeg from here
 
* <code style="color: #bb0000;">./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</code>
 
* <code style="color: #bb0000;">./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</code>
 
* <code style="color: #bb0000;">make</code>
 
* <code style="color: #bb0000;">make</code>
 
* <code style="color: #bb0000;">sudo make install</code>
 
* <code style="color: #bb0000;">sudo make install</code>
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== Add FFmpeg to your project ==
 
== Add FFmpeg to your project ==
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{| class="wikitable"
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!英文
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!自動翻訳
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* Add library: <code style="color: #bb0000;">FFmpeg</code> (for GCC: <code style="color: #bb0000;">-lavformat -lavcodec -lavutil -lswscale -lm -lz -lpthread</code>)
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* Add library: <code style="color: #bb0000;">FFmpeg</code> (for GCC: <code style="color: #bb0000;">-lavformat -lavcodec -lavutil -lswscale -lm -lz -lpthread</code>)
 
  
 
== Usage ==
 
== Usage ==
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!英文
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!自動翻訳
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Enable <code style="color: #bb0000;">LV_USE_FFMPEG</code> in <code style="color: #bb0000;">lv_conf.h</code>.
 
Enable <code style="color: #bb0000;">LV_USE_FFMPEG</code> in <code style="color: #bb0000;">lv_conf.h</code>.
  
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Note that, the 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.
 
Note that, the 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.
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== Example ==
 
== Example ==
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=== Decode image ===
 
=== Decode image ===
 
[[file:LVGL docs 3rdPartyLibs FFmpeg 01.png|link=https://docs.lvgl.io/8.2/libs/ffmpeg.html#decode-image]]
 
[[file:LVGL docs 3rdPartyLibs FFmpeg 01.png|link=https://docs.lvgl.io/8.2/libs/ffmpeg.html#decode-image]]
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=== Decode video ===
 
=== Decode video ===
 
[[file:LVGL docs 3rdPartyLibs FFmpeg 01.png|link=https://docs.lvgl.io/8.2/libs/ffmpeg.html#decode-video]]
 
[[file:LVGL docs 3rdPartyLibs FFmpeg 01.png|link=https://docs.lvgl.io/8.2/libs/ffmpeg.html#decode-video]]
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== API ==
 
== API ==
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Enums
 
Enums
  
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::
 
::
 
:; struct ffmpeg_context_s *ffmpeg_ctx
 
:; struct ffmpeg_context_s *ffmpeg_ctx
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2022年6月29日 (水) 17:40時点における版

https://docs.lvgl.io/8.2/libs/ffmpeg.html

FFmpeg support

英文 自動翻訳

FFmpeg A complete, cross-platform solution to record, convert and stream audio and video.

戻る : Previous


Install FFmpeg

英文 自動翻訳
  • Download FFmpeg from here
  • ./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
戻る : Previous


Add FFmpeg to your project

英文 自動翻訳
  • Add library: FFmpeg (for GCC: -lavformat -lavcodec -lavutil -lswscale -lm -lz -lpthread)
戻る : Previous


Usage

英文 自動翻訳

Enable LV_USE_FFMPEG in lv_conf.h.

See the examples below.

Note that, the 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.

戻る : Previous


Example

英文 自動翻訳

Decode image

LVGL docs 3rdPartyLibs FFmpeg 01.png

Decode video

LVGL docs 3rdPartyLibs FFmpeg 01.png

戻る : Previous


API

英文 自動翻訳

Enums

enum lv_ffmpeg_player_cmd_t

Values:
enumerator LV_FFMPEG_PLAYER_CMD_START
enumerator LV_FFMPEG_PLAYER_CMD_STOP
enumerator LV_FFMPEG_PLAYER_CMD_PAUSE
enumerator LV_FFMPEG_PLAYER_CMD_RESUME
enumerator _LV_FFMPEG_PLAYER_CMD_LAST

Functions

void lv_ffmpeg_init(void)

Register FFMPEG image decoder

int lv_ffmpeg_get_frame_num(const char *path)

Get the number of frames contained in the file
Parameters
path -- image or video file name
Returns
Number of frames, less than 0 means failed

lv_obj_t *lv_ffmpeg_player_create(lv_obj_t *parent)

Create ffmpeg_player object
Parameters
parent -- pointer to an object, it will be the parent of the new player
Returns
pointer to the created ffmpeg_player

lv_res_t lv_ffmpeg_player_set_src(lv_obj_t *obj, const char *path)

Set the path of the file to be played
Parameters
  • obj -- pointer to a ffmpeg_player object
  • path -- video file path
Returns
LV_RES_OK: no error; LV_RES_INV: can't get the info.

void lv_ffmpeg_player_set_cmd(lv_obj_t *obj, lv_ffmpeg_player_cmd_t cmd)

Set command control video player
Parameters
  • obj -- pointer to a ffmpeg_player object
  • cmd -- control commands

void lv_ffmpeg_player_set_auto_restart(lv_obj_t *obj, bool en)

Set the video to automatically replay
Parameters
  • obj -- pointer to a ffmpeg_player object
  • en -- true: enable the auto restart

Variables

const lv_obj_class_t lv_ffmpeg_player_class

struct lv_ffmpeg_player_t

Public Members
lv_img_t img
lv_timer_t *timer
lv_img_dsc_t imgdsc
bool auto_restart
struct ffmpeg_context_s *ffmpeg_ctx


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