嗨，我有 iMX8QXP 套件，我想从 ov5647 相机获取流。
发行= fsl-imx-wayland。
我的 ov5647 相机的引脚连接到：
MIPI_CSI0_ACM_MCLK_OUT MIPI_CSI0_MCLK_OUT ALT0
MIPI_CSI0_CKN MIPI_CSI0_CLK_N ALT0 MIPI_CSI0_CKP MIPI_CSI0_CLK_P ALT0 MIPI_CSI0_DN0 MIPI_CSI0_DATA0_N ALT0 MIPI_CSI0_DN1 MIPI_CSI0_DATA1_N ALT0 MIPI_CSI0_DN2 MIPI_CSI0_DATA2_N ALT0
MIPI_CSI0_DN3 MIPI_CSI0_DATA3_N ALT0 MIPI_CSI0_DP0 MIPI_CSI0_DATA0_P ALT0 MIPI_CSI0_DP1 MIPI_CSI0_DATA1_P ALT0 MIPI_CSI0_DP2 MIPI_CSI0_DATA2_P ALT0 MIPI_CSI0_DP3 MIPI_CSI0_DATA3_P ALT0
但 I2C 引脚未连接。有问题吗？我可以通过 i2c 从没有初始化的相机获取数据吗？
所以我在 ./include/dt-bindings/pinctrl/pads-imx8qxp.h 中找不到这些管脚（带有焊盘信号名称），如果我写这些管脚焊盘格式，我会得到错误，而不是写 MIPI_CSI0_ACM_MCLK_OUT。我认为这个引脚是专用的，我不能复用。我可以直接使用而无需更改 scfw。
所以我关于 mipi csi 相机的 dts 文件：
&iomuxc {
imx8qxp-mek {
pinctrl_mipi_csi0: mipicsi0grp{
fsl,pins = <
SC_P_MIPI_CSI0_MCLK_OUT_MIPI_CSI0_ACM_MCLK_OUT 0xC0000041
SC_P_MIPI_CSI0_GPIO0_01_LSIO_GPIO3_IO07 0xC0000041
SC_P_MIPI_CSI0_GPIO0_00_LSIO_GPIO3_IO08 0xC0000041
>;
};
pinctrl_parallel_csi: parallelcsigrp {
fsl,pins = <
SC_P_CSI_D00_CI_PI_D02 0xC0000041
SC_P_CSI_D01_CI_PI_D03 0xC0000041
SC_P_CSI_D02_CI_PI_D04 0xC0000041
SC_P_CSI_D03_CI_PI_D05 0xC0000041
SC_P_CSI_D04_CI_PI_D06 0xC0000041
SC_P_CSI_D05_CI_PI_D07 0xC0000041
SC_P_CSI_D06_CI_PI_D08 0xC0000041
SC_P_CSI_D07_CI_PI_D09 0xC0000041
SC_P_CSI_MCLK_CI_PI_MCLK 0xC0000041
SC_P_CSI_PCLK_CI_PI_PCLK 0xC0000041
SC_P_CSI_HSYNC_CI_PI_HSYNC 0xC0000041
SC_P_CSI_VSYNC_CI_PI_VSYNC 0xC0000041
SC_P_CSI_EN_LSIO_GPIO3_IO02 0xC0000041
SC_P_CSI_RESET_LSIO_GPIO3_IO03 0xC0000041
>;
};
};
};
&isi_0 {
interface = <6 0 2>; /* INPUT: 6-PARALLEL CSI */
parallel_csi;
status = "okay";
};
&cameradev {
parallel_csi;
status = "okay";
};
¶llel_csi {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
port@0 {
reg = <0>;
parallel_csi_ep: endpoint {
remote-endpoint = <&ov5647_ep>;
};
};
};
&isi_2 {
interface = <2 0 2>;
status = "okay";
};
&isi_1 {
status = "disabled";
};
&isi_3 {
status = "disabled";
};
&isi_4 {
status = "disabled";
};
&isi_5 {
status = "disabled";
};
&isi_6 {
status = "disabled";
};
&isi_7 {
status = "disabled";
};
&i2c0_csi0 {
clock-frequency = <100000>;
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
ov5647_mipi: ov5647_mipi@36 {
compatible = "ovti,ov5647_mipi";
reg = <0x36>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mipi_csi0>;
clocks = <&clk IMX8QXP_24MHZ>;
clock-names = "csi_mclk";
csi_id = <0>;
pwn-gpios = <&gpio3 7 GPIO_ACTIVE_LOW>;
rst-gpios = <&gpio3 8 GPIO_ACTIVE_HIGH>;
mclk = <24000000>;
mclk_source = <0>;
mipi_csi;
status = "okay";
port {
ov5647_mipi_ep: endpoint {
remote-endpoint = <&mipi_csi0_ep>;
};
};
};
/delete-node/max9286_mipi@6A;
};
&mipi_csi_0 {
/delete-property/virtual-channel;
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
mipi_csi0_ep: endpoint {
remote-endpoint = <&ov5647_mipi_ep>;
data-lanes = <1 2>;
};
};
};
&i2c0_cm40 {
#address-cells = <1>;
#size-cells = <0>;
ov5647: ov5647@36 {
compatible = "ovti,ov5647";
reg = <0x36>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_parallel_csi>;
clocks = <&clk IMX8QXP_PARALLEL_CSI_MISC0_CLK>;
clock-names = "csi_mclk";
pwn-gpios = <&gpio3 2 GPIO_ACTIVE_LOW>;
rst-gpios = <&gpio3 3 GPIO_ACTIVE_HIGH>;
csi_id = <0>;
mclk = <24000000>;
mclk_source = <0>;
status = "okay";
port {
ov5647_ep: endpoint {
remote-endpoint = <¶llel_csi_ep>;
};
};
};
};
然后我通过 make menuconfig 打开 ov5647_mipi 支持：
make menuconfig > Device Drivers > Multimedia Support > V4L platform devices > MXC Camera/V4L2 RPR Features Support > Omnivision ov5647 camera support using mipi > (*). 我在此处添加 y。
比我启动时，/dev 中没有新视频。（有无ov5647驱动不改变视频大小。有video12和video13）
我将使用 mipi 的 Omnivision ov5647 相机支持更改为 m（构建模块），然后我 insmod ov5647_camera_mipi.ko
模块加载和 strace 像这样：
brk(NULL) = 0x1b168000
faccessat(AT_FDCWD, "/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=43413, ...}) = 0
mmap(NULL, 43413, PROT_READ, MAP_PRIVATE, 3, 0) = 0xffff8ba94000
close(3) = 0
openat(AT_FDCWD, "/lib/libz.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0\267\0\1\0\0\0\300$\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=88392, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xffff8ba92000
mmap(NULL, 151928, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xffff8ba4c000
mprotect(0xffff8ba61000, 61440, PROT_NONE) = 0
mmap(0xffff8ba70000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14000) = 0xffff8ba70000
close(3) = 0
openat(AT_FDCWD, "/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0\267\0\1\0\0\0\260C\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1405888, ...}) = 0
mmap(NULL, 1477872, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xffff8b8e3000
mprotect(0xffff8ba33000, 65536, PROT_NONE) = 0
mmap(0xffff8ba43000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x150000) = 0xffff8ba43000
mmap(0xffff8ba49000, 11504, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xffff8ba49000
close(3) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xffff8b8e1000
mprotect(0xffff8ba43000, 12288, PROT_READ) = 0
mprotect(0xffff8ba70000, 4096, PROT_READ) = 0
mprotect(0x42f000, 4096, PROT_READ) = 0
mprotect(0xffff8baa1000, 4096, PROT_READ) = 0
munmap(0xffff8ba94000, 43413) = 0
brk(NULL) = 0x1b168000
brk(0x1b189000) = 0x1b189000
uname({sysname="Linux", nodename="imx8qxpmek", ...}) = 0
openat(AT_FDCWD, "/lib/modules/4.19.35-1.1.0+g0f9917c56d59/modules.softdep", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/proc/cmdline", O_RDONLY|O_CLOEXEC) = 3
read(3, "root=/dev/mmcblk1p2 ro rootwait "..., 4095) = 88
read(3, "", 4007) = 0
close(3) = 0
newfstatat(AT_FDCWD, ".", {st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD, "/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD, "/home/ov5647_camera_mipi.ko", {st_mode=S_IFREG|0644, st_size=28736, ...}, 0) = 0
openat(AT_FDCWD, "/home/ov5647_camera_mipi.ko", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177E", 2) = 2
lseek(3, 0, SEEK_SET) = 0
fstat(3, {st_mode=S_IFREG|0644, st_size=28736, ...}) = 0
mmap(NULL, 28736, PROT_READ, MAP_PRIVATE, 3, 0) = 0xffff8ba97000
finit_module(3, "", 0) = 0
munmap(0xffff8ba97000, 28736) = 0
close(3) = 0
exit_group(0) = ?
+++ exited with 0 +++
我尝试使用以下命令通过 lvds 使用 video12 和 video13 打开相机：
命令 ：
gst-launch-1.0 -v videotestsrc模式=球\！视频/x-raw，宽度=320，高度=240 \ ！视频转换\！球座 \ ！v4l2sink 设备=/dev/video12 输出：
root@imx8qxpmek:/home# gst-launch-1.0 -v videotestsrc pattern=ball \
！视频/x-raw，宽度=320，高度=240 \ ！视频转换\！球座 \ ！v4l2sink device=/dev/video12 将管道设置为 PAUSED ... 错误：管道不想暂停。错误：来自元素 /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0：设备“/dev/video12”不是输出设备。附加调试信息：../../../git/sys/v4l2/v4l2_calls.c(687): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0: Capabilities: 0x4204000 Setting pipeline to NULL ... Freeing管道...
根@imx8qxpmek:/home#
命令 ：
gst-launch-1.0 -v videotestsrc模式=球\！视频/x-raw，宽度=320，高度=240 \ ！视频转换\！球座 \ ！v4l2sink 设备=/dev/video12 输出：
将管道设置为 PAUSED ... Pipeline is PREROLLING ... /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0.GstPad:src: caps = video/x-raw, format=(string)NV12, width=(int)320, height= (int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, interlace1 /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-raw, format=(string) NV12，宽度=（整数）320，高度=（整数）240，帧率=（分数）30/1，多视图模式=（字符串）单声道，隔行扫描模式1 /GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:src： caps = video/x-raw, format=(string)NV12, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, interlace1 /GstPipeline :pipeline0/GstTee:tee0.GstTeePad:src_0: caps = video/x-raw, format=(string)NV12, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview -mode=（字符串）单声道，隔行模式=(string1 /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0.GstPad:sink: caps = video/x-raw, format=(string)NV12, width=(int)320, height=(int)240, framerate= (fraction)30/1, multiview-mode=(string)mono, interlace-mode=(1 /GstPipeline:pipeline0/GstTee:tee0.GstPad:sink: caps = video/x-raw, format=(string)NV12,宽度=（整数）320，高度=（整数）240，帧率=（分数）30/1，多视图模式=（字符串）单声道，隔行模式=（字符串）pro1 /GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad :sink: caps = video/x-raw, format=(string)NV12, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, interlac1 /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-raw, format=(string)NV12, width=(int)320, height=(int)240, framerate=(fraction)30/ 1、多视图模式=（字符串）单声道，interlace-mo1 Pipeline is PREROLLED ... 将流水线设置为 PLAYING ... 新时钟：GstSystemClock
^处理中断。-------------------------------------> CTRL + C 中断：停止流水线...执行结束在 0:01:03.000609625 之后将管道设置为 PAUSED ... 将管道设置为 READY ... 将管道设置为 NULL ... 释放管道 ...
命令 ：
gst-launch-1.0 -e glvideomixer 名称=混合背景=3 sink_0::xpos=192 sink_0::ypos=0 sink_0::width=640 sink_0::height=480 sink_0::zorder=1！“视频/x-raw，宽度=1024，高度=768”！glimagesink 旋转方法=水平翻转 v4l2src 设备=/dev/video13 ！视频/x-raw，宽度=640，高度=480！mix.sink_0 &
输出 ：
将管道设置为 PAUSED ... 管道处于活动状态，不需要 PREROLL ... 从元素“接收器”获取上下文：gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"(GstGLDisplayWayland)\ gldisplaywayland0" ; 将管道设置为 PLAYING ... 新时钟：GstSystemClock 错误：来自元素 /GstPipeline:pipeline0/GstV4l2Src:v4l2src0：内部数据流错误。附加调试信息：../../../../git/libs/gst/base/gstbasesrc.c(3072): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: 流停止，原因不-已协商 (-4) 关闭时启用的 EOS -- 等待 EOS 错误后等待 EOS...
命令 ：
gst-launch-1.0 -e glvideomixer 名称=混合背景=3 sink_0::xpos=192 sink_0::ypos=0 sink_0::width=640 sink_0::height=480 sink_0::zorder=1！“视频/x-raw，宽度=1024，高度=768”！glimagesink 旋转方法=水平翻转 v4l2src 设备=/dev/video12 ！视频/x-raw，宽度=640，高度=480！mix.sink_0 &
输出 ：
将管道设置为 PAUSED ... 错误：管道不想暂停。从元素“接收器”获取上下文：gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"(GstGLDisplayWayland)\ gldisplaywayland0"; 错误：来自元素 /GstPipeline:pipeline0/GstV4l2Src:v4l2src0：设备“/dev/video12”不是捕获设备。附加调试信息：../../../git/sys/v4l2/v4l2_calls.c(679): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Capabilities: 0x4204000 Setting pipeline to NULL ... 释放管道...
请帮忙。我在等你的建议。
编辑 1：
我像这样更改 dts 文件：
&iomuxc {
imx8qxp-mek {
pinctrl_mipi_csi0: mipicsi0grp{
fsl,pins = <
SC_P_MIPI_CSI0_MCLK_OUT_MIPI_CSI0_ACM_MCLK_OUT 0xC0000041
SC_P_MIPI_CSI0_GPIO0_01_LSIO_GPIO3_IO07 0xC0000041
SC_P_MIPI_CSI0_GPIO0_00_LSIO_GPIO3_IO08 0xC0000041
>;
};
pinctrl_parallel_csi: parallelcsigrp {
fsl,pins = <
SC_P_CSI_D00_CI_PI_D02 0xC0000041
SC_P_CSI_D01_CI_PI_D03 0xC0000041
SC_P_CSI_D02_CI_PI_D04 0xC0000041
SC_P_CSI_D03_CI_PI_D05 0xC0000041
SC_P_CSI_D04_CI_PI_D06 0xC0000041
SC_P_CSI_D05_CI_PI_D07 0xC0000041
SC_P_CSI_D06_CI_PI_D08 0xC0000041
SC_P_CSI_D07_CI_PI_D09 0xC0000041
SC_P_CSI_MCLK_CI_PI_MCLK 0xC0000041
SC_P_CSI_PCLK_CI_PI_PCLK 0xC0000041
SC_P_CSI_HSYNC_CI_PI_HSYNC 0xC0000041
SC_P_CSI_VSYNC_CI_PI_VSYNC 0xC0000041
SC_P_CSI_EN_LSIO_GPIO3_IO02 0xC0000041
SC_P_CSI_RESET_LSIO_GPIO3_IO03 0xC0000041
>;
};
};
};
&isi_0 {
interface = <6 0 2>; /* INPUT: 6-PARALLEL CSI */
parallel_csi;
status = "disable";
};
&cameradev {
mipi_csi_0;
status = "okay";
};
¶llel_csi {
#address-cells = <1>;
#size-cells = <0>;
status = "disable";
port@0 {
reg = <0>;
parallel_csi_ep: endpoint {
remote-endpoint = <&ov5647_ep>;
};
};
};
&isi_2 {
interface = <2 0 2>;
status = "okay";
};
&isi_1 {
status = "disabled";
};
&isi_3 {
status = "disabled";
};
&isi_4 {
status = "disabled";
};
&isi_5 {
status = "disabled";
};
&isi_6 {
status = "disabled";
};
&isi_7 {
status = "disabled";
};
&i2c0_csi0 {
clock-frequency = <100000>;
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
ov5647_mipi: ov5647_mipi@36 {
compatible = "ovti,ov5647_mipi";
reg = <0x36>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mipi_csi0>;
clocks = <&clk IMX8QXP_24MHZ>;
clock-names = "csi_mclk";
csi_id = <0>;
pwn-gpios = <&gpio3 7 GPIO_ACTIVE_LOW>;
rst-gpios = <&gpio3 8 GPIO_ACTIVE_HIGH>;
mclk = <24000000>;
mclk_source = <0>;
mipi_csi;
status = "okay";
port {
ov5647_mipi_ep: endpoint {
remote-endpoint = <&mipi_csi0_ep>;
};
};
};
/delete-node/max9286_mipi@6A;
};
&mipi_csi_0 {
virtual-channel;
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
mipi_csi0_ep: endpoint {
remote-endpoint = <&ov5647_mipi_ep>;
data-lanes = <1 2>;
};
};
};
&i2c0_cm40 {
#address-cells = <1>;
#size-cells = <0>;
ov5647: ov5647@36 {
compatible = "ovti,ov5647";
reg = <0x36>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_parallel_csi>;
clocks = <&clk IMX8QXP_PARALLEL_CSI_MISC0_CLK>;
clock-names = "csi_mclk";
pwn-gpios = <&gpio3 2 GPIO_ACTIVE_LOW>;
rst-gpios = <&gpio3 3 GPIO_ACTIVE_HIGH>;
csi_id = <0>;
mclk = <24000000>;
mclk_source = <0>;
status = "disabled";
port {
ov5647_ep: endpoint {
remote-endpoint = <¶llel_csi_ep>;
};
};
};
};
现在我似乎是模块：root@imx8qxpmek:/# find -name " ov5647 " ./sys/bus/i2c/drivers/ov5647_mipi ./sys/firmware/devicetree/base/i2c@37230000/ov5647@36 ./sys/firmware /devicetree/base/i2c@58226000/ov5647_mipi@36 ./sys/module/ov5647_camera_mipi
当 ls /dev 现在有两个 /dev/video 。（视频 0 和视频 1）。
为什么现在有两个视频频道？
我的 dts 文件也有错误。那是什么 ：
root@imx8qxpmek:/# dmesg | grep ov5
[ 3.667601] ov5647_mipi 16-0036：应用设置时出错，将事情反转 [3.674673] ov5647_mipi：16-0036 的探测失败，错误为 -22
我正在等待一些帮助。
编辑2：我删除了
SC_P_MIPI_CSI0_GPIO0_01_LSIO_GPIO3_IO07 0xC0000041
SC_P_MIPI_CSI0_GPIO0_00_LSIO_GPIO3_IO08 0xC0000041
来自 dts 文件。（我认为有引脚冲突）
root@imx8qxpmek:/# dmesg | grep ov5
[ 3.641815] ov5647_mipi 16-0036: 16-0036 supply DOVDD not found, using dummy regulator
[ 3.649866] ov5647_mipi 16-0036: Linked as a consumer to regulator.0
[ 3.656255] ov5647_mipi 16-0036: 16-0036 supply DVDD not found, using dummy regulator
[ 3.664175] ov5647_mipi 16-0036: 16-0036 supply AVDD not found, using dummy regulator
[ 4.751720] ov5647_read_reg:write reg error:reg=300a
[ 4.756696] camera ov5647_mipi is not found
root@imx8qxpmek:/#
我也用这个命令尝试了 video0、video1 和 video12：
root@imx8qxpmek:/# gst-launch-1.0 v4l2src device=/dev/video12 glimagesink
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
Got context from element 'sink': gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"\(GstGLDisplayWayland\)\ gldisplaywayland0";
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Device '/dev/video12' is not a capture device.
Additional debug info:
../../../git/sys/v4l2/v4l2_calls.c(679): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Capabilities: 0x4204000
Setting pipeline to NULL ...
Freeing pipeline ...
root@imx8qxpmek:/#
但是 video13 不同：
root@imx8qxpmek:/# gst-launch-1.0 v4l2src device=/dev/video13 glimagesink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Got context from element 'sink': gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"\(GstGLDisplayWayland\)\ gldisplaywayland0";
Caught SIGSEGV
Setting pipeline to PLAYING ...
New clock: GstSystemClock
#0 0x0000ffffbce2a1a0 in __GI___poll (fds=0x13944c50, nfds=2,
#1 0x0000ffffbcf4b22c in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x0000ffffbcf4b640 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3 0x0000ffffbd0da5bc in gst_bus_poll () from /usr/lib/libgstreamer-1.0.so.0
#4 0x0000000000404828 in ?? ()
#5 0x00000000004036a8 in ?? ()
#6 0x0000ffffbcd89264 in __libc_start_main (main=0x4032c0, argc=4,
#7 0x0000000000403d44 in ?? ()
Spinning. Please run 'gdb gst-launch-1.0 4434' to continue debugging, Ctrl-C to quit, or Ctrl-\ to dump core.
现在我又在等待一些帮助！