X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavdevice%2Fv4l2.c;h=10a0ff0dd611ce91c111868076f8697677adcab4;hb=9e406326687b5342dc9caffd4f5f1b03ac4bf26b;hp=f087badf5ca74440ad50396fd36f647c6a614133;hpb=725ae0e2d0222f81b5cca3b0b226116ec6fd0494;p=ffmpeg

diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index f087badf5ca..10a0ff0dd61 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -106,7 +106,7 @@ struct buff_data {
     int index;
 };
 
-static int device_open(AVFormatContext *ctx)
+static int device_open(AVFormatContext *ctx, const char* device_path)
 {
     struct video_data *s = ctx->priv_data;
     struct v4l2_capability cap;
@@ -147,11 +147,11 @@ static int device_open(AVFormatContext *ctx)
         flags |= O_NONBLOCK;
     }
 
-    fd = v4l2_open(ctx->filename, flags, 0);
+    fd = v4l2_open(device_path, flags, 0);
     if (fd < 0) {
         err = AVERROR(errno);
         av_log(ctx, AV_LOG_ERROR, "Cannot open video device %s: %s\n",
-               ctx->filename, av_err2str(err));
+               device_path, av_err2str(err));
         return err;
     }
 
@@ -840,7 +840,7 @@ static int v4l2_read_header(AVFormatContext *ctx)
         v4l2_log_file = fopen("/dev/null", "w");
 #endif
 
-    s->fd = device_open(ctx);
+    s->fd = device_open(ctx, ctx->url);
     if (s->fd < 0)
         return s->fd;
 
@@ -1042,11 +1042,13 @@ static int v4l2_get_device_list(AVFormatContext *ctx, AVDeviceInfoList *device_l
         return ret;
     }
     while ((entry = readdir(dir))) {
+        char device_name[256];
+
         if (!v4l2_is_v4l_dev(entry->d_name))
             continue;
 
-        snprintf(ctx->filename, sizeof(ctx->filename), "/dev/%s", entry->d_name);
-        if ((s->fd = device_open(ctx)) < 0)
+        snprintf(device_name, sizeof(device_name), "/dev/%s", entry->d_name);
+        if ((s->fd = device_open(ctx, device_name)) < 0)
             continue;
 
         if (v4l2_ioctl(s->fd, VIDIOC_QUERYCAP, &cap) < 0) {
@@ -1060,7 +1062,7 @@ static int v4l2_get_device_list(AVFormatContext *ctx, AVDeviceInfoList *device_l
             ret = AVERROR(ENOMEM);
             goto fail;
         }
-        device->device_name = av_strdup(ctx->filename);
+        device->device_name = av_strdup(device_name);
         device->device_description = av_strdup(cap.card);
         if (!device->device_name || !device->device_description) {
             ret = AVERROR(ENOMEM);