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- 11. _V_i_d_e_o__I_/_O__S_y_s_t_e_m
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- The Silicon Graphics Video Library is a device independent
- library for video devices on Silicon Graphics workstations
- equipped with video hardware. VL EOE is the first release
- of the execution environment and supports the built in video
- in Indy systems, as well as Galileo Video on Indigo2, Power
- Indigo2, and Indigo, and Indy Video on Indy. Future
- releases will support additional video devices.
-
- The execution environment for video includes the video
- daemon, a control panel, _v_i_d_e_o_p_a_n_e_l, that can be launched
- from the Icon Catalog, as well as _v_i_d_e_o_i_n, an application
- that displays video in a window on the screen. On hardware
- options that support video output capabilities, the
- environment also includes _v_i_d_e_o_o_u_t, an application that
- allows you to select a windowed area of the screen or the
- whole screen to send to video output connectors. There are
- also two command line applications, _v_i_d_t_o_m_e_m and _m_e_m_t_o_v_i_d
- that support frame in from video and frame out to video.
- Documentation of these tools is included in the Utilities
- Guide.
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- The Video Library Execution Environment subsystem in IRIS
- Digital Media Execution Environment 6.4 is the same as the
- 5.3 version.
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- 11.1 _C_o_n_f_i_g_u_r_a_t_i_o_n__F_i_l_e_s
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- The video devices have certain configuration values. There
- are factory defaults for each device stored in :
- /usr/etc/video/videod.defaults._d_e_v_i_c_e, where _d_e_v_i_c_e is ev1
- for Galileo Video and Indy Video, and vino for Indy VINO
- (Video In No Out). Using _v_i_d_e_o_p_a_n_e_l you can restore these,
- as well as saving and restoring a local configuration in
- /usr/etc/video/videod.defaults.
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- 11.2 _K_n_o_w_n__P_r_o_b_l_e_m_s__a_n_d__W_o_r_k_a_r_o_u_n_d_s
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- +o Not all applications follow default input. When using
- videopanel to set the default input, you may need to
- quit and restart the application if it is already
- running.
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- +o There is no concept of a default device in the current
- video environment. When you switch devices in the
- video control panel, there is no event sent to the
- application. It is up to the application to present a
- way to switch devices. This is only an issue for
- systems with multiple boards in them.
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- +o For certain monitors and timings you may want to use
- the _s_e_t_m_o_n command. See the man page for details.
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- 11.3 _C_h_a_n_g_e_s__a_n_d__A_d_d_i_t_i_o_n_s
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- +o The Video Library Execution Environment subsystem in
- IRIS Digital Media Execution Environment 6.4 is the
- same as the 5.3 version.
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- 11.4 _B_u_g__F_i_x_e_s
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- +o XXX
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- 11.5 _I_n_d_y__V_I_N_O__P_r_o_b_l_e_m_s__a_n_d__W_o_r_k_a_r_o_u_n_d_s
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- +o When viewing video from an external source, if you fast
- forward or rewind the source, the _v_i_d_e_o_i_n application
- can loose synchronization. Restart the application to
- regain a clean video signal.
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- +o If yo have an IndyCam and have not installed
- _v_i_n_o._s_w._e_o_e or if you do not have the IndyCam plugged
- in when you boot your system, the hardware inventory
- command _h_i_n_v reports:
- Vino video: unit 0, revision 0, Indycam not connected.
- Be sure to plug the IndyCam in before you start up your
- system. Once you install _v_i_n_o._s_w._e_o_e. and reboot,
- your system will report correctly:
- Vino video: unit 0, revision 0, Indycam connected.
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- +o If the input video stream is frozen (by using _F_r_e_e_z_e on
- the _v_i_d_e_o_p_a_n_e_l) and the window is obscured and then
- uncovered, the video frame is not redrawn correctly.
- Unfreeze the video to have it redrawn.
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- 11.6 _G_a_l_i_l_e_o__V_i_d_e_o__a_n_d__I_n_d_y__V_i_d_e_o__P_r_o_b_l_e_m_s__a_n_d__W_o_r_k_a_r_o_u_n_d_s
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- +o If you resize the _v_i_d_e_o_i_n application to it's minimum
- size, 96 x 72, you may see garbage lines on the bottom
- and the right edge of the image.
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- +o When using _v_i_d_t_o_m_e_m to capture a burst of consecutive
- frames, you can only capture up to 4 at once. To
- capture more frames call _v_i_d_t_o_m_e_m repeatedly.
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- +o There is one line of invalid data across the bottom of
- the _v_i_d_e_o_i_n window using PAL format.
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- +o There may be one line of invalid data across the top
- and side of the _v_i_d_e_o_o_u_t image.
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- +o Galileo Video on the Indigo platform will only work
- with the R4000 CPU using XS, XS24, XS24Z, XZ, and Elan
- level graphics.
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- +o Galileo Video on the Power Indigo2 platform will only
- work with the XZ and Elan level graphics. It will not
- work with the XL graphics.
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- 11.7 _D_o_c_u_m_e_n_t_a_t_i_o_n__E_r_r_o_r_s
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- +o There are no known errors in the documentation.
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