WhyCan Forum(哇酷开发者社区)

不懂，都能翻了，为什么还要用这个？

@晕哥 我也搞了个emmc转tf，是按照TF卡的步骤直接分区，烧录对吧？然后直接就能启动？不需要对uboot、kernel做改动？

楼主uboot用的什么版本？

我用的8.1
下载freetype-2.10.0
./configure CC=arm-linux-gnueabihf-gcc --host=arm-linux --prefix=$PWD/library --with-zlib=no --with-png=no
make
make install

lvgl makefile -- 参照

FREERTYPE_DIR ?= ../freetype-2.10.0
FREERTYPE_INCDIR ?= ../freetype-2.10.0/library/include/freetype2
FREERTYPE_LINK ?= ../freetype-2.10.0/library/lib

CFLAGS ?= -O3 -g0 -I$(LVGL_DIR)/ -I$(MIXML_DIR)/  \
        -I$(FREERTYPE_INCDIR)/ -I$(FREERTYPE_LINK)/ \
        -I$(FFMPEG_INDIR)/ -I$(FFMPEG_LINK)/ \
        -Wall -Wshadow -Wundef   \
        -Wno-unused-function \
        -fno-strict-aliasing -Wno-error=cpp \
        -Wno-error=pedantic \
        -Wno-error=missing-prototypes -Wdouble-promotion -Wclobbered -Wdeprecated \
        -Wempty-body -Wshift-negative-value -Wstack-usage=2048 -Wno-unused-value \
        -Wuninitialized -Wmaybe-uninitialized \
        -Wextra -Wno-unused-parameter -Wno-missing-field-initializers \
        -Wtype-limits -Wsizeof-pointer-memaccess -Wno-format-nonliteral \
        -Wpointer-arith -Wno-cast-qual -Wmissing-prototypes -Wunreachable-code \
        -Wno-switch-default -Wreturn-type -Wmultichar -Wno-discarded-qualifiers \
        -Wformat-security -Wno-ignored-qualifiers -Wno-sign-compare -O3
LDFLAGS ?= -lm   -L$(FREERTYPE_LINK)/ -lfreetype \
          -L$(FFMPEG_LINK)/ -lavformat -lavcodec -lavutil -lswscale -lm -lpthread

对的，感谢大佬！

搞定了 谢谢大佬

&pio {
	    spi0_cs_pins: spi0_cs_pins {
		pins = "PC2", "PB2";
		function = "gpio_out";
		};
};

&spi0 {
		/ needed to avoid dtc warning /
		#address-cells = <1>;
		#size-cells = <0>;
		
		status = "okay";
		pinctrl-names = "default";
		pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
		cs-gpios = <&pio 2 2 GPIO_ACTIVE_HIGH>, <&pio 1 2 GPIO_ACTIVE_HIGH>;
        
        spi_nand: spi_nand@0 {
                #address-cells = <1>;
                #size-cells = <1>;
                compatible = "spi-nand";
                reg = <0x0>;
                spi-max-frequency = <50000000>;

                partition@0 {
                    label = "uboot";
                    reg = <0x0 0x100000>;
                    read-only;
                };

                partition@100000 {
                    label = "dtb";
                    reg = <0x100000 0x20000>;
                    read-only;
                };

                partition@120000 {
                    label = "kernel";
                    reg = <0x120000 0x800000>;
                    read-only;
                };

                partition@920000 {
                    label = "rootfs";
                    reg = <0x920000 0x79E0000>;
                };
            };
        
                
        mb85rs256:mb85rs2mta@1 {
                compatible = "jedec,spi-nor";
                reg = <0x1>;
                spi-max-frequency = <45000000>;
                #address-cells = <1>;
                #size-cells = <1>;
        	};	
		
	};

LOG

[    0.853517] sun8i-v3s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pc not found, using dummy regulator
[    0.865110] spi-nand spi0.0: GigaDevice SPI NAND was found.
[    0.870780] spi-nand spi0.0: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 128
[    0.879806] 4 fixed-partitions partitions found on MTD device spi0.0
[    0.886165] Creating 4 MTD partitions on "spi0.0":
[    0.891040] 0x000000000000-0x000000100000 : "uboot"
[    0.898358] 0x000000100000-0x000000120000 : "dtb"
[    0.904275] 0x000000120000-0x000000920000 : "kernel"
[    0.910170] random: fast init done
[    0.929055] 0x000000920000-0x000008300000 : "rootfs"
[    0.934131] mtd: partition "rootfs" extends beyond the end of device "spi0.0" -- size truncated to 0x76e0000
[    1.081048] random: crng init done
[    1.177381] m25p80 spi0.1: mb85rs2mta (256 Kbytes)
[    1.183734] usbcore: registered new interface driver rndis_wlan
[    1.190289] usbcore: registered new interface driver cdc_ether
[    1.196164] usbcore: registered new interface driver rndis_host
[    1.202158] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.208680] ehci-platform: EHCI generic platform driver
[    1.214235] ehci-platform 1c1a000.usb: EHCI Host Controller
[    1.219914] ehci-platform 1c1a000.usb: new USB bus registered, assigne

@zhang235hai
我刚刚也试了试，确实一样的错

我又换成了buildroot 2020.08.3 （还保留了bellagio），主线linux5.2，移植了libcedar
# ls /dev/
bus/                ptys7               tty36               ttyr8
cec0                ptys8               tty37               ttyr9
cec1                ptys9               tty38               ttyra
cedar_dev           ptysa               tty39               ttyrb
console             ptysb               tty4                ttyrc
cpu_dma_latency     ptysc               tty40               ttyrd
fb0                 ptysd               tty41               ttyre
fd/                 ptyse               tty42               ttyrf
full                ptysf               tty43               ttys0
gpiochip0           ptyt0               tty44               ttys1
i2c-0               ptyt1               tty45               ttys2
ion                 ptyt2               tty46               ttys3
kmsg                ptyt3               tty47               ttys4
log                 ptyt4               tty48               ttys5
media0              ptyt5               tty49               ttys6
media1              ptyt6               tty5                ttys7

# gst-launch-1.0 filesrc location=/root/h2demo.mp4 ! qtdemux ! h264parse ! omxh2
64dec ! autovideoconvert ! fbdevsink
WARNING: erroneous pipeline: no element "h264parse"

# gst-inspect-1.0 --gst-debug-level=4 h264parse
0:00:00.003252875   175    0x3ce80 INFO                GST_INIT gstmessage.c:128:_priv_gst_message_initialize: init messages
0:00:00.007057209   175    0x3ce80 INFO                GST_INIT gstcontext.c:84:_priv_gst_context_initialize: init contexts
0:00:00.008619625   175    0x3ce80 INFO      GST_PLUGIN_LOADING gstplugin.c:318:_priv_gst_plugin_initialize: registering 0 static plugins
0:00:00.009887167   175    0x3ce80 INFO      GST_PLUGIN_LOADING gstplugin.c:226:gst_plugin_register_static: registered static plugin "staticelements"
0:00:00.010048917   175    0x3ce80 INFO      GST_PLUGIN_LOADING gstplugin.c:228:gst_plugin_register_static: added static plugin "staticelements", result: 1
0:00:00.010163542   175    0x3ce80 INFO            GST_REGISTRY gstregistry.c:1720:ensure_current_registry: reading registry cache: /root/.cache/gstreamer-1.0/registry.cortex-a7.bin
0:00:00.027715000   175    0x3ce80 INFO            GST_REGISTRY gstregistrybinary.c:621:priv_gst_registry_binary_read_cache: loaded /root/.cache/gstreamer-1.0/registry.cortex-a7.bin in 0.017286 seconds
0:00:00.028062625   175    0x3ce80 INFO            GST_REGISTRY gstregistry.c:1579:scan_and_update_registry: Validating plugins from registry cache: /root/.cache/gstreamer-1.0/registry.cortex-a7.bin
0:00:00.029380834   175    0x3ce80 INFO            GST_REGISTRY gstregistry.c:1678:scan_and_update_registry: Registry cache has not changed
0:00:00.029535042   175    0x3ce80 INFO            GST_REGISTRY gstregistry.c:1755:ensure_current_registry: registry reading and updating done, result = 1
0:00:00.029615750   175    0x3ce80 INFO                GST_INIT gst.c:806:init_post: GLib runtime version: 2.64.4
0:00:00.029683709   175    0x3ce80 INFO                GST_INIT gst.c:808:init_post: GLib headers version: 2.64.4
0:00:00.029729792   175    0x3ce80 INFO                GST_INIT gst.c:810:init_post: initialized GStreamer successfully

请问大佬啥原因？

我目前用的v3s，可能沒有開啓硬解碼,lvgl8+ffmpeg
參數：
./configure --enable-cross-compile --cross-prefix=arm-linux-gnueabihf- --arch=arm --target-os=linux --prefix=$PWD/library --disable-all --disable-autodetect --disable-podpages --disable-asm --enable-shared --disable-static --disable-ffmpeg --disable-ffplay --disable-ffprobe  --disable-doc --enable-avcodec --enable-avformat --enable-decoders --enable-encoders --enable-demuxers --enable-parsers --enable-protocol='file' --enable-swscale --disable-zlib

lvgl
-lavformat -lavcodec -lavutil -lswscale -lm  -lpthread

void lv_example_ffmpeg(void)
{
    lv_obj_t * player = lv_ffmpeg_player_create(lv_scr_act());
    lv_ffmpeg_player_set_src(player, "/root/h2demo.mp4");
    lv_ffmpeg_player_set_auto_restart(player, true);
    lv_ffmpeg_player_set_cmd(player, LV_FFMPEG_PLAYER_CMD_START);
    lv_obj_center(player);
}

加載的240X400 mp4 h.264 30fps特別卡,cpu 95%

can you share it in github?

请问有详细教程吗？我这里也有个 spi+rgb的 ili的，一直驱动不起来，spi写不进去，我这是45pin的，需要额外接线。

@illusion
说的很对，虽然我也花钱买过积分。
但是还是支持。

感谢晕哥，刚刚对照这个来了一发lvgl ts lib，搞定了

git clone https://github.com/xxx.git
改成：
git clone https://github.com.cnpmjs.org/xxx.git

试试这个。