[问答]

am5728 编码内存泄露

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问答对人有帮助，内容完整，我也想知道答案 0 大家好，我用 am5728 evm的编码的时候，发生了内存泄漏，之前没有使用 g_signal_connect 也是会发生内存泄露，这个问题困扰了我很久，希望大家给看一下。内存泄露需要使用 top 命令观察大概 5-10分钟就可以看到结果开发包是 ti-processor-sdk-linux-am57xx-evm-03.03.00.04 系统使用的ubuntu14.04。/* * * * gst-launch-1.0 -v -e v4l2src device=/dev/video1 io-mode=2 ! * 'video/x-raw, format=(string)NV12, width=(int)640, height=(int)480, framerate=(fraction)30/1,bitrate=(int)30' ! * ducatih264enc ! h264parse ! ducatih264dec ! waylandsink sync=false * */#include #include #include #include #include #include #include #include #include #include #include #define waylandsink#define v4l2srctypedef struct _App App;struct _App[ GstElement pipeline; GstElement appsrc; GstElement encode; GstElement parse; GstElement sink; GstElement decode; GstBus bus; GstMessage msg; GMainLoop loop; guint bus_watch_id;];App s_app;int ret, idx, fd;#define NBUF 3#define FRAME_SIZE 152064 //3522881.5int width = 352, height = 288;void buffer_addr[NBUF];int size[NBUF];static voidfeed_data (GstElement appsrc, guint size, App * app)[// while(1)// [// fd_set fds;// struct timeval tv;// int r=0;// FD_ZERO(&fds);// FD_SET(fd,&fds);// tv.tv_sec=0;// tv.tv_usec=1000100;// r=select(fd+1,&fds,NULL,NULL,&tv);// if(-1==r)// [// printf("1111rn");// continue;// ]// if(0==r)// [// printf("2222rn");// return FALSE;// ] printf("feed-data....n"); struct v4l2_buffer buf; / Dequeue one buffer / memset(&buf, 0, sizeof(buf)); buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; buf.memory = V4L2_MEMORY_MMAP; if(-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) [ perror("Queue Buffer"); return FALSE; ] idx = buf.index; GstBuffer buffer; GstFlowReturn ret; buffer = gst_buffer_new_allocate(NULL,FRAME_SIZE,NULL); GstMapInfo info; gst_buffer_map(buffer,&info,GST_MAP_WRITE); unsigned char * buff = info.data;// if((void)buf.m.userptr!=0)// [// memcpy(buff,buf.m.userptr,FRAME_SIZE);// ] memcpy(buff,buffer_addr[idx],FRAME_SIZE); gst_buffer_unmap(buffer,&info); g_signal_emit_by_name(app->appsrc,"push-buffer",buffer,&ret); printf("ret:%dn",ret); if (ret != GST_FLOW_OK) [ / some error, stop sending data / printf("push error...n"); return FALSE; ] gst_buffer_unref(buffer); memset(&buf, 0, sizeof(buf)); buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; buf.memory = V4L2_MEMORY_MMAP; buf.index = idx; if(-1 == xioctl(fd, VIDIOC_QBUF, &buf)) [ perror("Queue Buffer"); return FALSE; ] return TRUE;// ]]int xioctl(int fd, int request, void arg)[ int r; do r = ioctl (fd, request, arg); while (-1 == r && EINTR == errno); return r;]int init_device(int fd) [ unsigned int i; struct v4l2_capability caps; struct v4l2_format fmt; struct v4l2_requestbuffers req; struct v4l2_buffer buf; /* Check for capture device / memset(&caps, 0, sizeof(caps)); if (-1 == xioctl(fd, VIDIOC_QUERYCAP, &caps)) [ perror("Setting Pixel Format"); return 1; ] printf("Driver: %sncaps: %8x", caps.driver, caps.capabilities); if (~caps.capabilities & V4L2_CAP_VIDEO_CAPTURE) [ printf("Not a capture device"); return 1; ] / Set capture format to UYVY / memset(&fmt, 0, sizeof(fmt)); fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; fmt.fmt.pix.width = width; fmt.fmt.pix.height = height; fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_NV12; // fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; fmt.fmt.pix.field = V4L2_FIELD_NONE; if (-1 == xioctl(fd, VIDIOC_S_FMT, &fmt)) [ perror("Setting Pixel Format"); return 1; ] printf("Selected Camera Mode:n" " Width: %dn" " Height: %dn" " Field: %d", fmt.fmt.pix.width, fmt.fmt.pix.height, fmt.fmt.pix.field); printf(" PixFmt = %c%c%c%cn", fmt.fmt.pix.pixelformat & 0xFF, (fmt.fmt.pix.pixelformat >> 8) & 0xFF, (fmt.fmt.pix.pixelformat >> 16) & 0xFF, (fmt.fmt.pix.pixelformat >> 24) &0xFF); / Currently driver supports only mmap buffers * Request memory mapped buffers / memset(&req, 0, sizeof(req)); req.count = NBUF; req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; req.memory = V4L2_MEMORY_MMAP; if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) [ perror("Requesting Buffer"); return 1; ] printf("Total buffer num %dn", req.count); for (i = 0; i < req.count; i++) [ memset(&buf, 0, sizeof(buf)); buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; buf.memory = V4L2_MEMORY_MMAP; buf.index = i; if (-1 == xioctl(fd, VIDIOC_QUERYBUF, &buf)) [ perror("Querying Buffer"); return 1; ] / Memory map all the buffers and save the addresses / buffer_addr = mmap(NULL, buf.length, PROT_READ \| PROT_WRITE, MAP_SHARED, fd, buf.m.offset); //buffer_addr=(void)malloc(FRAME_SIZE); size = buf.length; printf("Address %p, size %d, image size: %d n", buffer_addr, buf.length, buf.bytesused); /* Queue the buffer for capture / memset(&buf, 0, sizeof(buf)); buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; buf.memory = V4L2_MEMORY_MMAP; buf.index = i; if (-1 == xioctl(fd, VIDIOC_QBUF, &buf)) [ perror("Queue Buffer"); return 1; ] printf("12345rn"); ] if (-1 == xioctl(fd, VIDIOC_STREAMON, &buf.type)) [ perror("Start Capture"); return 1; ] return 0;]void release_device(int fd)[ int type = V4L2_BUF_TYPE_VIDEO_CAPTURE; xioctl(fd, VIDIOC_STREAMOFF, &type); close(fd);]gboolean bus_call(GstBus bus, GstMessage msg, gpointer data)[ GMainLoop loop = (GMainLoop ) data; switch (GST_MESSAGE_TYPE (msg)) [ case GST_MESSAGE_EOS: fprintf(stderr, "End of streamn"); g_main_loop_quit(loop); break; case GST_MESSAGE_ERROR: [ gchar debug; GError error; gst_message_parse_error(msg, &error, &debug); g_free(debug); g_printerr("Error: %sn", error->message); g_error_free(error); g_main_loop_quit(loop); break; ] default: break; ] return TRUE;]int main(int argc, char argv)[ App app = &s_app; printf("==========n"); char devnode[100] = "/dev/video1"; fd = open(devnode, O_RDWR); if (fd == -1) [ perror("Opening video device"); return 1; ] ret = init_device(fd); if (0 != ret) [ printf("Exiting"); return ret; ] gst_init(NULL,NULL); app->pipeline = gst_pipeline_new("encode"); g_assert(app->pipeline); app->appsrc = gst_element_factory_make("appsrc","srcElement"); g_assert(app->appsrc); app->encode = gst_element_factory_make("ducatih264enc","encodeElement"); g_assert(app->encode); app->parse = gst_element_factory_make("h264parse","parseElement"); g_assert(app->parse); app->decode = gst_element_factory_make("ducatih264dec","decodeElement"); g_assert(app->decode);#ifdef waylandsink app->sink = gst_element_factory_make("waylandsink","sinkElement");#else app->sink = gst_element_factory_make("appsink","sinkElement");#endif g_assert(app->sink); printf("element creat successn"); GstCaps *capsappsrc2H264enc; capsappsrc2H264enc = gst_caps_new_simple("video/x-raw", "format",G_TYPE_STRING, "NV12", "width", G_TYPE_INT, 352, "height",G_TYPE_INT, 288, "framerate", GST_TYPE_FRACTION, 30, 1, NULL); g_object_set(G_OBJECT (app->sink), "sync", FALSE, NULL); app->loop = g_main_loop_new(NULL,FALSE); app->bus = gst_pipeline_get_bus(GST_PIPELINE(app->pipeline)); app->bus_watch_id = gst_bus_add_watch(app->bus,bus_call,app->loop); gst_object_unref(app->bus); gst_bin_add_many(GST_BIN(app->pipeline), app->appsrc,app->encode, app->parse,app->decode,app->sink, NULL); gboolean bLinkOk=gst_element_link_filtered(app->appsrc, app->encode, capsappsrc2H264enc); if(!bLinkOk)[ g_warning("Failed to link src encode n"); return -5; ] bLinkOk= gst_element_link_many(app->encode, app->parse,app->decode,app->sink,NULL); if(!bLinkOk)[ g_warning("Failed to link many 1n"); return -5; ] g_signal_connect(app->appsrc, "need-data", G_CALLBACK(feed_data), app); gst_element_set_state (app->pipeline, GST_STATE_PLAYING); printf("run....1n"); g_main_loop_run(app->loop); printf("run....2n"); app->msg = gst_bus_timed_pop_filtered (app->bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR \| GST_MESSAGE_EOS); if (app->msg != NULL) gst_message_unref (app->msg); gst_object_unref (app->bus); gst_element_set_state (app->pipeline, GST_STATE_NULL); gst_object_unref (app->pipeline); gst_object_unref(app->appsrc); gst_object_unref(app->encode); gst_object_unref(app->parse); gst_object_unref(app->decode); gst_object_unref(app->sink); printf("close...n"); return 0;]编译命令: ARM-linux-gnueabihf-gcc app-camera.c -o app `pkg-config --cflags --libs gstreamer-1.0 gstreamer-base-1.0 gstreamer-app-1.0` 0
2018-5-15 06:01:37　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × 普罗旺斯的薰衣草该类别下有 48 个回答。邀请回答新星之火12138 该类别下有 48 个回答。邀请回答 heks 该类别下有 46 个回答。邀请回答潘涛12345 该类别下有 39 个回答。邀请回答 lksas 该类别下有 37 个回答。邀请回答霍威电源该类别下有 36 个回答。邀请回答 fdhsfagd 该类别下有 36 个回答。邀请回答 wanglinhua2627 该类别下有 35 个回答。邀请回答 ggfx 该类别下有 35 个回答。邀请回答站着幻想该类别下有 35 个回答。邀请回答 chm5 该类别下有 35 个回答。邀请回答 kingnet6688 该类别下有 35 个回答。邀请回答 hgimtk 该类别下有 35 个回答。邀请回答 wang21cj 该类别下有 34 个回答。邀请回答 HengDu 该类别下有 34 个回答。邀请回答 kghfh 该类别下有 33 个回答。邀请回答 huzp_bbs 该类别下有 33 个回答。邀请回答 lifei639156 该类别下有 33 个回答，其中被选为最佳答案 1 次。邀请回答深海零下一度1 该类别下有 32 个回答。邀请回答 wuli北该类别下有 32 个回答。邀请回答举报蔡柱刚相关推荐 • 关于AM5728的原装摄像头 2079 • 请问 AM5728 编码h264视频的最大性能？ 1542 • AM5728 可以调用GPU用于通用数学计算吗？ 2275 • 请问AM5728有相应的.gel 文件吗？ 1387 • am5728 eeprom 板级型号问题 1777 • 请问一下，am5728的编解码性能如何？ 2023 • AM5728计算核如何调用？ 1764 • 请问哪里可以找到AM5728的例程，Datasheet，SDK（Linux或RTOS），各种资料，最好有中文的？ 2523 • 请问AM5728编解码相关的资料在哪里可以找到？ 1552 • 请问如何用am5728开发板右边的按键来实现按键打开摄像头和录音功能？ 1268 2个回答

答案对人有帮助，有参考价值 0 z820139598 发表于 1970-1-1 08:00 请参考这个E2E链接：http://e2e.ti.com/support/embedded/linux/f/354/p/620539/2293222#2293222

2018-5-15 06:20:34 评论举报罗兰君