1 <!-- Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved. -->
3 @defgroup vwx_sample_nvcamera_capture (L4T R23) NVIDIA GStreamer Camera Capture Sample App
4 @brief NVIDIA GStreamer Camera Capture Sample user guide.
8 <a name=
"Introduction">
11 `nvx_sample_nvgstcamera_capture` demonstrates NVIDIA GStreamer camera access. The sample is tested with
12 the E2146 camera module.
14 @note This sample is supported only on Jetson Embedded platforms running L4T R23 OS.
16 `nvx_sample_nvgstcamera_capture` is installed in the following directory:
18 /usr/share/visionworks/sources/samples/nvgstcamera_capture
20 For the steps to build sample applications, see the @ref nvx_sample_building_linux section.
22 <a name=
"Available Camera modes">
23 ## Available Camera modes
25 | Resolution | Frames per second |
26 |:-----------:|:-----------------:|
32 ## Executing the NVIDIA GStreamer Camera Capture Sample ##
34 ./nvx_sample_nvgstcamera_capture [options]
36 ### Command Line Options ###
38 This topic provides a list of supported options and the values they consume.
40 #### \-c, \--camera ####
41 - Parameter: [input camera device ID]
42 - Description: Specifies the input camera device ID.
45 - `--camera=0`
for the first camera
46 - `--camera=1`
for the second camera.
48 #### \-r, \--resolution ####
49 - Parameter: [resolution]
50 - Description: Specifies the resolution.
51 - Usage: `--resolution=1280x720`
for capturing `720p` frames.
52 - Supported resolution settings:
61 - Description: Specifies the frame per second.
62 - Usage: `--fps=30` to capture 30 frames per second.
63 - Supported FPS settings: `[10, 120]`
65 @note The actual FPS value may differ from the specified one:
66 1. Custom resolutions such as `640x480` cannot be played with FPS higher than 30.
67 2. FPS
for native resolutions cannot be higher than the native value.
69 #### \-h, \--help ####
70 - Description: Prints the help message.
72 ### Operational Keys ###
73 - Use `Space` to pause/resume the sample.
74 - Use `ESC` to close the sample.