Commit Graph

195 Commits (38cb1ed39b75e1674d331ac139e1526d7ba6583e)

Author SHA1 Message Date
jp9000 1c40ce6332 Use MAX_TS_VAR for timestamp jump detection
This combines the 'direct' timestamp variance threshold with the maximum
timestamp jump threshold (or rather just removes the max timestamp jump
threshold and uses the timestamp variance threshold for both timestamp
jumps and detecting timestamps).

The reason why this was done was because a timestamp jump could occur at
a higher threshold than the threshold used for detecting OS timestamps
within a certain threshold.  If timestamps got between those two
thresholds it kind of became a weird situation where timestamps could be
sort of 'stuck' back or forward in time more than intended.  Better to
be consistent and use the same threshold for both values.
2014-10-22 20:32:47 -07:00
jp9000 c3f4b0f018 Add flag to obs_source_frame for unbuffered video
Add 'flags' member variable to obs_source_frame structure.

The OBS_VIDEO_UNBUFFERED flags causes the video to play back as soon as
it's received (in the next frame playback), causing it to disregard the
timestamp value for the sake of video playback (however, note that the
video timestamp is still used for audio synchronization if audio is
present on the source as well).

This is partly a convenience feature, and partly a necessity for certain
plugins (such as the linux v4l plugin) where timestamp information for
the video frames can sometimes be unreliable.
2014-10-22 20:32:47 -07:00
jp9000 2c3f9c47d1 Fix a typo ('timetamp') 2014-10-22 20:32:46 -07:00
fryshorts 5894054521 Fix small bug in timestamp smoothing for audio sources
Due to a small error in the timestamp smoothing code the timestamp of
audio packages that were too early was always set to the next expected
timestamp, even if the difference was bigger than the smoothing threshold.

This would cause obs to simply append all audio data to the buffer even if
the real timestamp was way smaller than the next that was expected.

This should reduce corruption problems with for example the pulseaudio
plugin, which resends data under certain conditions.
2014-10-09 22:25:29 +02:00
Palana b99c378e33 Add 'update_properties' signal and obs_source_update_properties call
obs_source_update_properties should be called by sources when property
values change, e.g. a capture device source would use this when it
detects a new capture device (in case its properties contain a list of
available capture devices or similar)
2014-10-01 15:39:57 +02:00
Palana 94a93abb2b (API Change) Pass data to get_properties when possible 2014-10-01 15:39:57 +02:00
jp9000 41fad2d1a4 (API Change) Use const params where applicable
This Fixes a minor flaw with the API where data had to always be mutable
to be usable by the API.

Functions that do not modify the fundamental underlying data of a
structure should be marked as constant, both for safety and to signify
that the parameter is input only and will not be modified by the
function using it.
2014-09-26 17:23:07 -07:00
jp9000 c9df41c1e2 (API Change) Remove pointers from all typedefs
Typedef pointers are unsafe.  If you do:
typedef struct bla *bla_t;
then you cannot use it as a constant, such as: const bla_t, because
that constant will be to the pointer itself rather than to the
underlying data.  I admit this was a fundamental mistake that must
be corrected.

All typedefs that were pointer types will now have their pointers
removed from the type itself, and the pointers will be used when they
are actually used as variables/parameters/returns instead.

This does not break ABI though, which is pretty nice.
2014-09-25 21:48:11 -07:00
jp9000 732d24caa1 Remove unused variables 2014-09-19 18:46:25 -07:00
kc5nra 26cf4688c2 Add interaction support to libobs 2014-09-15 17:19:37 -05:00
jp9000 11b0fe122c Improve async source render timing
This helps ensure that an asynchronous video source is played as close
to its framerate as possible, reduces the risk of duplication as
much as possible, and helps to ensure that playback is as smooth as
possible.
2014-09-12 20:36:31 -07:00
jp9000 52e08249f1 Only render async frames to texture once per frame
This prevents multiple needless calls to obs_source_get_frame and other
functions.  If the texture has already been processed, then just render
it as-is in any subsequent calls to obs_source_video_render.
2014-09-12 20:36:31 -07:00
jp9000 5defc67991 Remove audio/video sync reference counter
This is actually unnecessary now that there's a hard limit on the
maximum offset in which audio can be inserted.

This also assumes too much about the audio; it assumes audio is always
on, where as with some devices (such as the elgato) audio is not on
until the stream starts, and when the video has already incremented the
counter.
2014-09-04 14:01:46 -07:00
jp9000 355d5dab6e Move timestamp smooth threshold to media-io 2014-08-30 11:51:37 -07:00
jp9000 47570f4153 Fix bug with source audio
If the audio didn't start at the 0 timestamp, it would misinterpret it
as a timestamp jump because obs_source::next_audio_ts_min is set to 0 on
creation.  Timestamp starting values should be allowed to start at any
arbitrary value.
2014-08-28 18:34:36 -07:00
jp9000 5780f3f177 (API Change) Improve graphics API consistency
Summary:
- Prefix all graphics subsystem names with gs_ or GS_
- Unsquish funciton names (for example _setfloat to _set_float)
- Changed create functions to be more consistent with the rest of the
  API elsewhere.  For exmaple, instead of
  gs_create_texture/gs_texture_destroy, it's now
  gs_texture_create/gs_texture_destroy
- Renamed gs_stencil_op enum to gs_stencil_op_type

From:                            To:
-----------------------------------------------------------
tvertarray                       gs_tvertarray
vb_data                          gs_vb_data
vbdata_create                    gs_vbdata_create
vbdata_destroy                   gs_vbdata_destroy
shader_param                     gs_shader_param
gs_effect                        gs_effect
effect_technique                 gs_effect_technique
effect_pass                      gs_effect_pass
effect_param                     gs_effect_param
texture_t                        gs_texture_t
stagesurf_t                      gs_stagesurf_t
zstencil_t                       gs_zstencil_t
vertbuffer_t                     gs_vertbuffer_t
indexbuffer_t                    gs_indexbuffer_t
samplerstate_t                   gs_samplerstate_t
swapchain_t                      gs_swapchain_t
texrender_t                      gs_texrender_t
shader_t                         gs_shader_t
sparam_t                         gs_sparam_t
effect_t                         gs_effect_t
technique_t                      gs_technique_t
eparam_t                         gs_eparam_t
device_t                         gs_device_t
graphics_t                       graphics_t
shader_param_type                gs_shader_param_type
SHADER_PARAM_UNKNOWN             GS_SHADER_PARAM_UNKNOWN
SHADER_PARAM_BOOL                GS_SHADER_PARAM_BOOL
SHADER_PARAM_FLOAT               GS_SHADER_PARAM_FLOAT
SHADER_PARAM_INT                 GS_SHADER_PARAM_INT
SHADER_PARAM_STRING              GS_SHADER_PARAM_STRING
SHADER_PARAM_VEC2                GS_SHADER_PARAM_VEC2
SHADER_PARAM_VEC3                GS_SHADER_PARAM_VEC3
SHADER_PARAM_VEC4                GS_SHADER_PARAM_VEC4
SHADER_PARAM_MATRIX4X4           GS_SHADER_PARAM_MATRIX4X4
SHADER_PARAM_TEXTURE             GS_SHADER_PARAM_TEXTURE
shader_param_info                gs_shader_param_info
shader_type                      gs_shader_type
SHADER_VERTEX                    GS_SHADER_VERTEX
SHADER_PIXEL                     GS_SHADER_PIXEL
shader_destroy                   gs_shader_destroy
shader_numparams                 gs_shader_get_num_params
shader_getparambyidx             gs_shader_get_param_by_idx
shader_getparambyname            gs_shader_get_param_by_name
shader_getviewprojmatrix         gs_shader_get_viewproj_matrix
shader_getworldmatrix            gs_shader_get_world_matrix
shader_getparaminfo              gs_shader_get_param_info
shader_setbool                   gs_shader_set_bool
shader_setfloat                  gs_shader_set_float
shader_setint                    gs_shader_set_int
shader_setmatrix3                gs_shader_setmatrix3
shader_setmatrix4                gs_shader_set_matrix4
shader_setvec2                   gs_shader_set_vec2
shader_setvec3                   gs_shader_set_vec3
shader_setvec4                   gs_shader_set_vec4
shader_settexture                gs_shader_set_texture
shader_setval                    gs_shader_set_val
shader_setdefault                gs_shader_set_default
effect_property_type             gs_effect_property_type
EFFECT_NONE                      GS_EFFECT_NONE
EFFECT_BOOL                      GS_EFFECT_BOOL
EFFECT_FLOAT                     GS_EFFECT_FLOAT
EFFECT_COLOR                     GS_EFFECT_COLOR
EFFECT_TEXTURE                   GS_EFFECT_TEXTURE
effect_param_info                gs_effect_param_info
effect_destroy                   gs_effect_destroy
effect_gettechnique              gs_effect_get_technique
technique_begin                  gs_technique_begin
technique_end                    gs_technique_end
technique_beginpass              gs_technique_begin_pass
technique_beginpassbyname        gs_technique_begin_pass_by_name
technique_endpass                gs_technique_end_pass
effect_numparams                 gs_effect_get_num_params
effect_getparambyidx             gs_effect_get_param_by_idx
effect_getparambyname            gs_effect_get_param_by_name
effect_updateparams              gs_effect_update_params
effect_getviewprojmatrix         gs_effect_get_viewproj_matrix
effect_getworldmatrix            gs_effect_get_world_matrix
effect_getparaminfo              gs_effect_get_param_info
effect_setbool                   gs_effect_set_bool
effect_setfloat                  gs_effect_set_float
effect_setint                    gs_effect_set_int
effect_setmatrix4                gs_effect_set_matrix4
effect_setvec2                   gs_effect_set_vec2
effect_setvec3                   gs_effect_set_vec3
effect_setvec4                   gs_effect_set_vec4
effect_settexture                gs_effect_set_texture
effect_setval                    gs_effect_set_val
effect_setdefault                gs_effect_set_default
texrender_create                 gs_texrender_create
texrender_destroy                gs_texrender_destroy
texrender_begin                  gs_texrender_begin
texrender_end                    gs_texrender_end
texrender_reset                  gs_texrender_reset
texrender_gettexture             gs_texrender_get_texture
GS_BUILDMIPMAPS                  GS_BUILD_MIPMAPS
GS_RENDERTARGET                  GS_RENDER_TARGET
gs_device_name                   gs_get_device_name
gs_device_type                   gs_get_device_type
gs_entercontext                  gs_enter_context
gs_leavecontext                  gs_leave_context
gs_getcontext                    gs_get_context
gs_renderstart                   gs_render_start
gs_renderstop                    gs_render_stop
gs_rendersave                    gs_render_save
gs_getinput                      gs_get_input
gs_geteffect                     gs_get_effect
gs_create_effect_from_file       gs_effect_create_from_file
gs_create_effect                 gs_effect_create
gs_create_vertexshader_from_file gs_vertexshader_create_from_file
gs_create_pixelshader_from_file  gs_pixelshader_create_from_file
gs_create_texture_from_file      gs_texture_create_from_file
gs_resetviewport                 gs_reset_viewport
gs_set2dmode                     gs_set_2d_mode
gs_set3dmode                     gs_set_3d_mode
gs_create_swapchain              gs_swapchain_create
gs_getsize                       gs_get_size
gs_getwidth                      gs_get_width
gs_getheight                     gs_get_height
gs_create_texture                gs_texture_create
gs_create_cubetexture            gs_cubetexture_create
gs_create_volumetexture          gs_voltexture_create
gs_create_zstencil               gs_zstencil_create
gs_create_stagesurface           gs_stagesurface_create
gs_create_samplerstate           gs_samplerstate_create
gs_create_vertexshader           gs_vertexshader_create
gs_create_pixelshader            gs_pixelshader_create
gs_create_vertexbuffer           gs_vertexbuffer_create
gs_create_indexbuffer            gs_indexbuffer_create
gs_gettexturetype                gs_get_texture_type
gs_load_defaultsamplerstate      gs_load_default_samplerstate
gs_getvertexshader               gs_get_vertex_shader
gs_getpixelshader                gs_get_pixel_shader
gs_getrendertarget               gs_get_render_target
gs_getzstenciltarget             gs_get_zstencil_target
gs_setrendertarget               gs_set_render_target
gs_setcuberendertarget           gs_set_cube_render_target
gs_beginscene                    gs_begin_scene
gs_draw                          gs_draw
gs_endscene                      gs_end_scene
gs_setcullmode                   gs_set_cull_mode
gs_getcullmode                   gs_get_cull_mode
gs_enable_depthtest              gs_enable_depth_test
gs_enable_stenciltest            gs_enable_stencil_test
gs_enable_stencilwrite           gs_enable_stencil_write
gs_blendfunction                 gs_blend_function
gs_depthfunction                 gs_depth_function
gs_stencilfunction               gs_stencil_function
gs_stencilop                     gs_stencil_op
gs_setviewport                   gs_set_viewport
gs_getviewport                   gs_get_viewport
gs_setscissorrect                gs_set_scissor_rect
gs_create_texture_from_iosurface gs_texture_create_from_iosurface
gs_create_gdi_texture            gs_texture_create_gdi
gs_is_compressed_format          gs_is_compressed_format
gs_num_total_levels              gs_get_total_levels
texture_setimage                 gs_texture_set_image
cubetexture_setimage             gs_cubetexture_set_image
swapchain_destroy                gs_swapchain_destroy
texture_destroy                  gs_texture_destroy
texture_getwidth                 gs_texture_get_width
texture_getheight                gs_texture_get_height
texture_getcolorformat           gs_texture_get_color_format
texture_map                      gs_texture_map
texture_unmap                    gs_texture_unmap
texture_isrect                   gs_texture_is_rect
texture_getobj                   gs_texture_get_obj
cubetexture_destroy              gs_cubetexture_destroy
cubetexture_getsize              gs_cubetexture_get_size
cubetexture_getcolorformat       gs_cubetexture_get_color_format
volumetexture_destroy            gs_voltexture_destroy
volumetexture_getwidth           gs_voltexture_get_width
volumetexture_getheight          gs_voltexture_get_height
volumetexture_getdepth           gs_voltexture_getdepth
volumetexture_getcolorformat     gs_voltexture_get_color_format
stagesurface_destroy             gs_stagesurface_destroy
stagesurface_getwidth            gs_stagesurface_get_width
stagesurface_getheight           gs_stagesurface_get_height
stagesurface_getcolorformat      gs_stagesurface_get_color_format
stagesurface_map                 gs_stagesurface_map
stagesurface_unmap               gs_stagesurface_unmap
zstencil_destroy                 gs_zstencil_destroy
samplerstate_destroy             gs_samplerstate_destroy
vertexbuffer_destroy             gs_vertexbuffer_destroy
vertexbuffer_flush               gs_vertexbuffer_flush
vertexbuffer_getdata             gs_vertexbuffer_get_data
indexbuffer_destroy              gs_indexbuffer_destroy
indexbuffer_flush                gs_indexbuffer_flush
indexbuffer_getdata              gs_indexbuffer_get_data
indexbuffer_numindices           gs_indexbuffer_get_num_indices
indexbuffer_gettype              gs_indexbuffer_get_type
texture_rebind_iosurface         gs_texture_rebind_iosurface
texture_get_dc                   gs_texture_get_dc
texture_release_dc               gs_texture_release_dc
2014-08-09 11:57:38 -07:00
jp9000 50ec8b0d55 (API Change) libobs/callback: Unsquish names
Renamed:                  To:
-------------------------------------------------
calldata_getdata          calldata_get_data
calldata_getint           calldata_get_int
calldata_getfloat         calldata_get_float
calldata_getbool          calldata_get_bool
calldata_getptr           calldata_get_ptr
calldata_getstring        calldata_get_string
calldata_setdata          calldata_set_data
calldata_setint           calldata_set_int
calldata_setfloat         calldata_set_float
calldata_setbool          calldata_set_bool
calldata_setptr           calldata_set_ptr
calldata_setstring        calldata_set_string
2014-08-09 11:57:38 -07:00
jp9000 42a0925ce1 (API Change) media-io: Improve naming consistency
Renamed:                        To:
-----------------------------------------------------------
audio_output_blocksize          audio_output_get_block_size
audio_output_planes             audio_output_get_planes
audio_output_channels           audio_output_get_channels
audio_output_samplerate         audio_output_get_sample_rate
audio_output_getinfo            audio_output_get_info
audio_output_createline         audio_output_create_line
video_output_getinfo            video_output_get_info
video_gettime                   video_output_get_time
video_getframetime              video_output_get_frame_time
video_output_width              video_output_get_width
video_output_height             video_output_get_height
video_output_framerate          video_output_get_frame_rate
video_output_num_skipped_frames video_output_get_skipped_frames
video_output_total_frames       video_output_get_total_frames
2014-08-09 11:57:37 -07:00
jp9000 2d606dd8d8 (API Change) Use 'get' convention: API callbacks
Renamed:                       To:
-------------------------------------------------------
obs_source_info::defaults       obs_source_info::get_defaults
obs_source_info::properties     obs_source_info::get_properties
obs_output_info::defaults       obs_output_info::get_defaults
obs_output_info::properties     obs_output_info::get_properties
obs_output_info::total_bytes    obs_output_info::get_total_bytes
obs_output_info::dropped_frames obs_output_info::get_dropped_frames
obs_encoder_info::defaults      obs_encoder_info::get_defaults
obs_encoder_info::properties    obs_encoder_info::get_properties
obs_encoder_info::extra_data    obs_encoder_info::get_extra_data
obs_encoder_info::sei_data      obs_encoder_info::get_sei_data
obs_encoder_info::audio_info    obs_encoder_info::get_audio_info
obs_encoder_info::video_info    obs_encoder_info::get_video_fino
obs_service_info::defaults      obs_service_info::get_defaults
obs_service_info::properties    obs_service_info::get_properties
2014-08-09 11:57:30 -07:00
jp9000 c83d05117f (API Change) Unsquish libobs API callback names
Renamed:                    To:
-------------------------------------------------------
obs_source_info::getname    obs_source_info::get_name
obs_source_info::getwidth   obs_source_info::get_width
obs_source_info::getheight  obs_source_info::get_height
obs_output_info::getname    obs_output_info::get_name
obs_encoder_info::getname   obs_encoder_info::get_name
obs_service_info::getname   obs_service_info::get_name
2014-08-08 11:04:46 -07:00
jp9000 a3682fc8fb (API Change) Use 'get' convention in libobs (base)
Instead of having functions like obs_signal_handler() that can fail to
properly specify their actual intent in the name (does it signal a
handler, or does it return a signal handler?), always prefix functions
that are meant to get information with 'get' to make its functionality
more explicit.

Previous names:             New names:
-----------------------------------------------------------
obs_audio                   obs_get_audio
obs_video                   obs_get_video
obs_signalhandler           obs_get_signal_handler
obs_prochandler             obs_get_proc_handler
obs_source_signalhandler    obs_source_get_signal_handler
obs_source_prochandler      obs_source_get_proc_handler
obs_output_signalhandler    obs_output_get_signal_handler
obs_output_prochandler      obs_output_get_proc_handler
obs_service_signalhandler   obs_service_get_signal_handler
obs_service_prochandler     obs_service_get_proc_handler
2014-08-08 11:04:46 -07:00
jp9000 73baaa59e9 (API Change) Unsquish libobs (base) names
Previous names:             New names:
-----------------------------------------------------------
obs_view_setsource          obs_view_set_source
obs_view_getsource          obs_view_get_source
obs_source_getdisplayname   obs_source_get_display_name
obs_source_getwidth         obs_source_get_width
obs_source_getheight        obs_source_get_height
obs_filter_getparent        obs_filter_get_parent
obs_filter_gettarget        obs_filter_get_target
obs_source_filter_setorder  obs_source_filter_set_order
obs_source_getsettings      obs_source_get_settings
obs_source_getname          obs_source_get_name
obs_source_setname          obs_source_set_name
obs_source_setvolume        obs_source_set_volume
obs_source_getvolume        obs_source_get_volume
obs_scene_getsource         obs_scene_get_source
obs_scene_fromsource        obs_scene_from_source
obs_scene_findsource        obs_scene_find_source
obs_output_getdisplayname   obs_output_get_display_name
obs_output_getname          obs_output_get_name
obs_encoder_getname         obs_encoder_get_name
obs_service_getdisplayname  obs_service_get_display_name
obs_service_getname         obs_service_get_name
2014-08-08 11:04:46 -07:00
jp9000 e42af67128 (API Change) Split obs_source_gettype
Changed:
- obs_source_gettype
To:
- enum obs_source_type obs_source_get_type(obs_source_t source);
- const char *obs_source_get_id(obs_source_t source);

This function was inconsistent for a number of reasons.  First, it
returns both the ID and the type of source (input/transition/filter),
which is inconsistent with the name of "get type".  Secondly, the
'squishy' naming convention which has just turned out to be bad
practice and causes inconsistencies.  So it's now replaced with two
functions that just return the type and the ID.
2014-08-08 11:04:44 -07:00
jp9000 0961af6e66 (API Change) Rename source_audio structure
Rename source_audio to obs_source_audio to make it more consistent with
the rest of the API
2014-08-08 11:04:44 -07:00
jp9000 45eec06891 (API Change) Rename filtered_audio structure
Reanmed filtered_audio to obs_audio_data, to improve the naming and
prefix with obs_ for the sake with consistency with the rest of the API
2014-08-08 11:04:44 -07:00
jp9000 4d1272e6e2 (API Change) Rename allow_direct_render enum
For the sake of consistency, changed allow_direct_render to
obs_allow_direct_render
2014-08-08 11:04:43 -07:00
jp9000 d2b4f82637 (API Change) Rename order_movement
Prefix with obs_ for the sake of consistency

Renamed enums:
- order_movement (now obs_order_movement)

Affected functions:
- obs_source_filter_setorder
- obs_sceneitem_setorder
2014-08-08 11:04:43 -07:00
jp9000 4122a5b9b5 (API Change) Rename 'source_frame' + related
For the sake of naming consistency with the rest of obs.h, prefix this
structure and associated functions with obs_.

Renamed structures:
- struct source_frame (now obs_source_frame)

Renamed functions:
- source_frame_init (now obs_source_frame_init)
- source_frame_free (now obs_source_frame_free)
- source_frame_create (now obs_source_frame_create)
- source_frame_destroy (now obs_source_frame_destroy)

Affected functions:
- obs_source_output_video
- obs_source_get_frame
- obs_source_release_frame
2014-08-08 11:04:42 -07:00
jp9000 7b402245dc (API Change) Rename obs_source_get(/release)frame
Renamed functions:
- obs_source_getframe (rename to obs_source_get_frame)
- obs_source_releaseframe (rename to obs_source_release_frame)

For the sake of consistency and helping to get rid of the "squishy
function name" issue
2014-08-08 11:04:42 -07:00
Palana 1abde3d476 Preserve source data for sources with unknown source ids 2014-07-29 20:06:36 +02:00
Palana e123c9c062 Clarify source creation error message 2014-07-29 17:11:49 +02:00
jp9000 53aa0a60d5 Check for duplicate sources/outputs/encoders/etc
With the recent change to module handling by BtbN, I felt that having
this information might be useful in case someone is actually using make
install to set up their libraries.
2014-07-28 16:15:09 -07:00
HomeWorld 6b284d9e58 Fix audio meters so that volume is applied linearly. 2014-07-14 21:12:53 +03:00
HomeWorld 336c3821fc Corrected a math mistake in obs_source.c calc_volume_levels. 2014-07-14 19:24:04 +03:00
jp9000 413641a11f Log when any libobs objects are created/destroyed 2014-07-13 05:01:02 -07:00
jp9000 a27f2fbb3a Fix potentially uninitialized variable warnings 2014-07-12 11:59:46 -07:00
jp9000 dc27cb2051 Add signal for renaming sources 2014-06-30 00:05:35 -07:00
jp9000 7b12133af3 Use uint8_t* instead of void* for texture data
NOTE: In texture_setimage, I had to move variables to the top of the
scope because microsoft's C compiler will give the legacy C90 error of:
'illegal use of this type as an expression'.

To sum it up, microsoft's C compiler is still utter garbage.
2014-06-28 10:12:57 -07:00
jp9000 dbb9124bf6 Remove 'effect' param from effect param funcs
Similar to the shader functions, the effect parameter functions take
the effect as a parameter.  However, the effect parameter is pretty
pointless, because the effect parameter.. parameter stores the effect
pointer interally.
2014-06-25 22:24:27 -07:00
jp9000 0b4a259e56 Remove 'locale' parameter from all callbacks
The locale parameter was a mistake, because it puts extra needless
burden upon the module developer to have to handle this variable for
each and every single callback function.  The parameter is being removed
in favor of a single centralized module callback function that
specifically updates locale information for a module only when needed.
2014-06-25 12:36:26 -07:00
jp9000 20a61ace77 libobs: Account for volume with audio levels 2014-06-06 08:56:37 -07:00
Jim 4eb6267372 Merge pull request #90 from antihax/master
Added simple volume meter for reference of input levels.
2014-06-03 05:15:18 -07:00
jp9000 5cd64ce7f2 libobs: Add level/magnitude/peak volume levels
This replaces the older code which simply queried the max volume level
value for any given audio.

I'm still not 100% sure on if this is how I want to approach the
problem, particularly, whether this should be done in obs_source or in
audio_line, but it can always be moved later if needed.

This uses the calculations by the awesome Bill Hamilton that OBS1 used
for its volume levels.  It calculates the current max (level),
magnitude, and current peak.  This data then can be used to create
awesome volume meter controls later on.

NOTE: Will probably need optimization, does one float at a time right
now.

Also, change some of the naming conventions.  I actually need to change
a lot of the naming conventions in general so that all words are
separated by underscores.  Kind of a bad practice there on my part.
2014-06-03 04:48:20 -07:00
Palana 7d0a1502bd Fix typo in conversion technique name (there is no UYUV, only UYVY) 2014-06-02 16:44:37 +02:00
jp9000 1343d6bdee libobs: Allow deferred source udpate on create
This allows sources to optionally defer update on creation in order to
prevent updates from being called from threads other than the video
thread.
2014-05-30 03:24:15 -07:00
jp9000 75d25b4e5b libobs: Init source info before calling 'create'
When a source's private data is being created by a module, it wasn't
able to call most source functions because most functions rely on the
obs_source_info part of the context to be set.  This fixes that issue.

It was strange that this wasn't already the case because the other
context types already did the same thing.
2014-05-30 02:35:24 -07:00
jp9000 9595a78e8a libobs: Add planar 4:2:0 async texture support
This uses the reverse planar YUV 4:2:0 conversion shader to output a YUV
texture without having to convert it via CPU.  Again, this will reduce
video upload bandwidth usage to 37.5% of the original rate.  I suspect
this will be particularly useful for when an FFmpeg or libav input
plugin for playing videos is made.

NOTE: There's an issue with certain texture sizes right now I haven't
been able to identify, if the full size of texture data divided by the
base texture width is an uneven number, the V chroma plane seems like it
can potentially shift, though I only had this happen with 160x90
resolution C920.  Almost all resolutions tend to be even.  Needs further
testing with more devices that support planar YUV 4:2:0 output.
2014-05-30 02:23:36 -07:00
Danni 90d9a5204f Updated per comments pull #90. 2014-05-24 16:24:48 -07:00
Danni bc542a3e75 Added simple volume meter for reference of input levels. 2014-05-20 09:26:18 -05:00
jp9000 2ab48dd590 obs-source.c: Fix a few potential concerns
First, if the private data of the source fails to be created, then do
not destroy the source.  If the source is destroyed, all the user's data
associated with that source is lost, which could end up being a
potential problem.  Instead, let it linger as a 'dead' source until the
user chooses to fix the problem (though this should never really happen,
the source module functions should be programmed to handle this
scenario)

Secondly, rename new_frame_ready to ready_async_frame, and fix a
potential memory leak with it.
2014-05-04 16:20:11 -07:00
Palana 4682cfb61b Fix an issue with async (video) source destruction
obs_source_output_video can cause cached frames to be freed twice if
called with a partially destroyed source, among other undesirable
effects; freeing the source private data right after the destroy signal
has been processed ensures proper behavior
2014-05-04 21:02:01 +02:00
jp9000 52746c2523 Add (temporary terrible) volume controls
- Add volume control

   These volume controls are basically nothing more than sliders.  They
   look terrible and hopefully will be as temporary as they are
   terrible.

 - Allow saving of specific non-user sources via obs_load_source and
   obs_save_source functions.

 - Save data of desktop/mic audio sources (sync data, volume data, etc),
   and load the data on startup.

 - Make it so that a scene is created by default if first time using the
   application.  On certain operating systems where supported, a default
   capture will be created.  Desktop capture on mac, particularly.  Not
   sure what to do about windows because monitor capture on windows 7 is
   completely terrible and is bad to start users off with.
2014-05-03 22:54:38 -07:00
jp9000 0b5ba66b33 async vid.: Fix potential endless buffering issue
If a source with async video wasn't currently active, it would endlessly
buffer the video data, which would cause memory to grow endlessly until
available memory was extinguished.

This really needs to be replaced with a proper caching mechanism at some
point.
2014-04-28 20:38:15 -07:00
Palana 14f3e79260 Add async texrender to cleanup 2014-04-28 21:54:13 +02:00
jp9000 65455c27be Add preliminary saving/loading of scene/sources
This saves scenes/sources from json on exit, and properly loads it back
up when starting up the program again, as well as the currently active
scene.

I had to add a 'load' and 'save' callback to the source interface
structure because I realizes that certain sources (such as scenes)
operate different with their saved data; scenes for example would have
to keep track of their settings information constantly, and that was
somewhat unacceptable to make it functional.

The optional 'load' callback will be called only after having loaded
setttings specifically from file/imported data, and the 'save' function
will be called only specifically when data actually needs to be saved.

I also had to adjust the obs_scene code so that it's a regular input
source type now, and I also modified it so that it doesn't have some
strange custom creation code anymore.  The obs_scene_create function is
now simply just a wrapper for obs_source_create.  You could even create
a scene with obs_source_create manually as well.
2014-04-26 23:47:50 -07:00
Palana 52b9f5fe52 Fix defaults for DrawMatrix 2014-04-24 22:33:02 +02:00
Palana 12cc06b560 Add GPU based frame decompression for async video sources 2014-04-24 22:03:32 +02:00
Palana 065379bffa Add limited range rendering for rendering YUV non-full range sources 2014-04-24 21:45:54 +02:00
jp9000 4a6d19f206 libobs: Add services API, reduce repeated code
Add API for streaming services.  The services API simplifies the
creation of custom service features and user interface.

Custom streaming services later on will be able to do things such as:

 - Be able to use service-specific APIs via modules, allowing a more
   direct means of communicating with the service and requesting or
   setting service-specific information

 - Get URL/stream key via other means of authentication such as OAuth,
   or be able to build custom URLs for services that require that sort
   of thing.

 - Query information (such as viewer count, chat, follower
   notifications, and other information)

 - Set channel information (such as current game, current channel title,
   activating commercials)

Also, I reduce some repeated code that was used for all libobs objects.
This includes the name of the object, the private data, settings, as
well as the signal and procedure handlers.

I also switched to using linked lists for the global object lists,
rather than using an array of pointers (you could say it was..
pointless.)  ..Anyway, the linked list info is also stored in the shared
context data structure.
2014-04-19 20:38:53 -07:00
jp9000 2451b80ef6 Fix drawing bug with async video sources
Before, async video sources would flicker because they were only being
drawn when they were updated.  So when updated, they'd draw that frame,
then it would stop drawing it until it updated again.  This fixes that
issue and they should now draw properly.

Also, fix a few other minor bugs and issues relating to async video,
and make it so that non-async video filters can be properly applied to
them.

For the purposes of testing, change the 'test-random' source to an async
video source that updates every quarter of a second with a new random
face.

Also fix a bug where non-async video sources wouldn't have filter
effects applied properly.
2014-04-13 02:22:28 -07:00
jp9000 92522d1886 Implement RTMP module (still needs drop code)
- Implement the RTMP output module.  This time around, we just use a
   simple FLV muxer, then just write to the stream with RTMP_Write.
   Easy and effective.

 - Fix the FLV muxer, the muxer now outputs proper FLV packets.

 - Output API:
   * When using encoders, automatically interleave encoded packets
     before sending it to the output.

   * Pair encoders and have them automatically wait for the other to
     start to ensure sync.

   * Change 'obs_output_signal_start_fail' to 'obs_output_signal_stop'
     because it was a bit confusing, and doing this makes a lot more
     sense for outputs that need to stop suddenly (disconnections/etc).

 - Encoder API:
   * Remove some unnecessary encoder functions from the actual API and
     make them internal.  Most of the encoder functions are handled
     automatically by outputs anyway, so there's no real need to expose
     them and end up inadvertently confusing plugin writers.

   * Have audio encoders wait for the video encoder to get a frame, then
     start at the exact data point that the first video frame starts to
     ensure the most accrate sync of video/audio possible.

   * Add a required 'frame_size' callback for audio encoders that
     returns the expected number of frames desired to encode with.  This
     way, the libobs encoder API can handle the circular buffering
     internally automatically for the encoder modules, so encoder
     writers don't have to do it themselves.

 - Fix a few bugs in the serializer interface.  It was passing the wrong
   variable for the data in a few cases.

 - If a source has video, make obs_source_update defer the actual update
   callback until the tick function is called to prevent threading
   issues.
2014-04-07 22:00:10 -07:00
jp9000 1bca7e0a3e Improve properties API
Improve the properties API so that it can actually respond somewhat to
user input.  Maybe later this might be further improved or replaced with
something script-based.

When creating a property, you can now add a callback to that property
that notifies when the property has been changed in the user interface.
Return true if you want the properties to be refreshed, or false if not.
Though now that I think about it I doubt there would ever be a case
where you would have this callback and *not* refresh the properties.

Regardless, this allows functions to change the values of properties or
settings, or enable/disable/hide other property controls from view
dynamically.
2014-04-04 00:30:37 -07:00
jp9000 d9251f9e87 Add source properties window (very preliminary)
- Add a properties window for sources so that you can now actually edit
   the settings for sources.  Also, display the source by itself in the
   window (Note: not working on mac, and possibly not working on linux).

   When changing the settings for a source, it will call
   obs_source_update on that source when you have modified any values
   automatically.

 - Add a properties 'widget', eventually I want to turn this in to a
   regular nice properties view like you'd see in the designer, but
   right now it just uses a form layout in a QScrollArea with regular
   controls to display the properties.  It's clunky but works for the
   time being.

 - Make it so that swap chains and the main graphics subsystem will
   automatically use at least one backbuffer if none was specified

 - Fix bug where displays weren't added to the main display array

 - Make it so that you can get the properties of a source via the actual
   pointer of a source/encoder/output in addition to being able to look
   up properties via identifier.

 - When registering source types, check for required functions (wasn't
   doing it before).  getheight/getwidth should not be optional if it's
   a video source as well.

 - Add an RAII OBSObj wrapper to obs.hpp for non-reference-counted
   libobs pointers

 - Add an RAII OBSSignal wrapper to obs.hpp for libobs signals to
   automatically disconnect them on destruction

 - Move the "scale and center" calculation in window-basic-main.cpp to
   its own function and in its own source file

 - Add an 'update' callback to WASAPI audio sources
2014-03-23 01:07:54 -07:00
jp9000 154e0c59e1 Use atomic functions where appropriate
Also, rename atomic functions to be consistent with the rest of the
platform/threading functions, and move atomic functions to threading*
files rather than platform* files
2014-03-16 18:26:46 -07:00
jp9000 3ed647b8a0 Set defaults automatically
Automatically query defaults for sources/outputs/encoders and set them
before calling create
2014-03-16 17:42:37 -07:00
jp9000 5288467aeb Ensure names are valid
Ensure that a source has a valid name.  Duplicates aren't a big deal
internally, but sources without a name are probably something that
should be avoided.  Made is so that if a source is programmatically
created without a name, it's assigned an index based name.

In the main basic-mode window, made it check to make sure the name was
valid as well.
2014-03-10 13:39:51 -07:00
jp9000 7d48dbb1dc Add a way to get default settings
- Implement a means of obtaining default settings for an
   input/output/encoder.  obs_source_defaults for example will return
   the default settings for a particular source type.

 - Because C++ doesn't have designated initializers, use functions in
   the WASAPI plugin to register the sources instead.
2014-03-07 06:55:21 -07:00
jp9000 9c6da6f52d Split output/input audio capture sources
- Split input and output audio captures so that they're different
   sources.  This allows easier handling and enumeration of audio
   devices without having to do some sort of string processing.

   This way the user interface code can handle this a bit more easily,
   and so that it doesn't confuse users either.  This should be done for
   all audio capture sources for all operating systems.  You don't have
   to duplicate any code, you just need to create input/output wrapper
   functions to designate the audio as input or output before creation.

 - Make it detect soundflower and wavtap devices as mac "output" devices
   (even though they're actually input) for the mac output capture, and
   make it so that users can select a default output capture and
   automatically use soundflower or wavtap.

   I'm not entirely happy about having to do this, but because mac is
   designed this way, this is really the only way to handle it that
   makes it easier for users and UI code to deal with.

   Note that soundflower and wavtap are still also designated as input
   devices, so will still show up in input device enumeration.

 - Remove pragma messages because they were kind polluting the other
   compiler messages and just getting in the way.  In the future we can
   just do a grep for TODO to find them.

 - Redo list property again, this time using a safer internal array,
   rather than requiring sketchy array inputs.  Having functions handle
   everything behind the scenes is much safer.

 - Remove the reference counter debug log code, as it was included
   unintentionally in a commit.
2014-03-03 02:56:54 -07:00
jp9000 e9342143a7 Simplify and extend callback/signalling system
- Signals and dynamic callbacks now require declarations to be made
  before being used.  What this does is allows us to get information
  about the functions dynamically which can be relayed to the user and
  plugins for future extended usage (this should have big implications
  later for scripting in particular, hopefully).

- Reduced the number of types calldata uses from "everything I could
  think of" to simply integer, float, bool, pointer/object, string.
  Integer data is now stored as long long.  Floats are now stored as
  doubles (check em).

- Use a more consistent naming scheme for lexer error/warning macros.

- Fixed a rather nasty bug where switching to an existing scene would
  cause it to increment sourceSceneRefs, which would mean that it would
  never end up never properly removing the source when the user clicks
  removed (stayed in limbo, obs_source_remove never got called)
2014-03-01 05:54:55 -07:00
jp9000 771eac6015 Be more consistent about log levels
LOG_ERROR should be used in places where though recoverable (or at least
something that can be handled safely), was unexpected, and may affect
the user/application.

LOG_WARNING should be used in places where it's not entirely unexpected,
is recoverable, and doesn't really affect the user/application.
2014-02-28 20:02:29 -07:00
jp9000 268e4e7811 Add more checks for NULL pointers 2014-02-23 22:39:33 -07:00
jp9000 60e6316a5e Separate source activation for main/aux views
Split off activate to activate and show callbacks, and split off
deactivate to deactivate and hide callbacks.  Sources didn't previously
have a means to know whether it was actually being displayed in the main
view or just happened to be visible somewhere.  Now, for things like
transition sources, they have a means of knowing when they have actually
been "activated" so they can initiate their sequence.

A source is now only considered "active" when it's being displayed by
the main view.  When a source is shown in the main view, the activate
callback/signal is triggered.  When it's no longer being displayed by
the main view, deactivate callback/signal is triggered.

When a source is just generally visible to see by any view, the show
callback/signal is triggered.  If it's no longer visible by any views,
then the hide callback/signal is triggered.

Presentation volume will now only be active when a source is active in
the main view rather than also in auxilary views.

Also fix a potential bug where parents wouldn't properly increment or
decrement all the activation references of a child source when a child
was added or removed.
2014-02-23 17:46:00 -07:00
jp9000 0ff0d32731 Fix video reset and apply new video settings
This allows the changing of bideo settings without having to completely
reset all graphics data.  Will recreate internal output/conversion
buffers and such and reset the main preview.
2014-02-22 20:14:19 -07:00
jp9000 7fcec77351 For *_update, apply settings instead of replacing
Make it so obs_data settings input in to *_update are applied to the
existing settings rather than fully replace the existing settings.  That
way you can update with only certain specific settings, leaving other
settings untouched.  Of course if you're already using the original
settings pointer in the first place then you've already done that, so
it'll just ignore it because you've already applied them.
2014-02-21 21:05:21 -07:00
jp9000 be81276f03 Implement volume handling
- Remove obs_source::type because it became redundant now that the
   type is always stored in the obs_source::info variable.

 - Apply presentation volumes of 1.0 and 0.0 to sources when they
   activate/deactivate, respectively.  It also applies that presentation
   volume to all sub-sources, with exception of transition sources.
   Transition sources must apply presentation volume manually to their
   sub-sources with the new transition functions below.

 - Add a "transition_volume" variable to obs_source structure, and add
   three functions for handling volume for transitions:

   * obs_transition_begin_frame
   * obs_source_set_transition_vol
   * obs_transition_end_frame

   Because the to/from targets of a transition source might both contain
   some of the same sources, handling the transitioning of volumes for
   that specific situation becomes an issue.

   So for transitions, instead of modifying the presentation volumes
   directly for both sets of sources, we do this:

   - First, call obs_transition_begin_frame at the beginning of each
     transition frame, which will reset transition volumes for all
     sub-sources to 0.  Presentation volumes remain unchanged.

   - Call obs_source_set_transition_vol on each sub-source, which will
     then add the volume to the transition volume for each source in
     that source's tree.  Presentation volumes still remain unchanged.

   - Then you call obs_trandition_end_frame when complete, which will
     then finally set the presentation volumes to the transition
     volumes.

   For example, let's say that there's one source that's within both the
   "transitioning from" sources and "transition to" sources.  It would
   add both the fade in and fade out volumes to that source, and then
   when the frame is complete, it would set the presentation volume to
   the sum of those two values, rather than set the presentation volume
   for that same source twice which would cause weird volume jittering
   and also set the wrong values.
2014-02-21 19:41:38 -07:00
jp9000 bdcabc6170 Add volume signals 2014-02-21 17:51:16 -07:00
jp9000 d4f1eacc1f Implement source activation/deactivation
Now sources will be properly activated and deactivated when they are in
use or not in use.

Had to figure out a way to handle child sources, and children of
children, just ended up implementing simple functions that parents use
to signal adding/removal to help with hierarchial activation and
deactivation of child sources.

To prevent the source activate/deactivate callbacks from being called
more than once, added an activation reference counter.  The first
increment will call the activate callback, and the last decrement will
call the deactivate callback.

Added "source-activate" and "source-deactivate" signals to the main obs
signal handler, and "activate" and "deactivate" to individual source
signal handlers.

Also, fixed the main window so it properly selects a source when the
current active scene has been changed.
2014-02-20 22:04:14 -07:00
jp9000 14c95ac421 Add functions to enumerate source children/tree 2014-02-20 17:44:42 -07:00
jp9000 d6ec5438a8 Add source audio sync offset setting 2014-02-20 16:16:25 -07:00
jp9000 579f026c5b Add more volume options
Added a "master" volume for the entire audio subsystem.

Also, added a "presentation" volume for both the master volume and for
each invidiaul source.  The presentation volume is used to control
things like transitioning volumes, preventing sources from outputting
any audio when they're inactive, as well as some other uses in the
future.
2014-02-20 15:56:51 -07:00
jp9000 27b851c06e Properly clamp audio timing and remove warnings
If audio was under, it originally did a full reset of the audio timing.
However, resetting the audio timing when this happens is kind of a bad
thing.  It's better just to clamp the value to the expected timestamp to
ensure seamless audio output.

Also, implement audio timestamp smoothing to ensure audio tries to be as
seamless as possible.
2014-02-18 14:38:51 -07:00
jp9000 f2d4de3c03 Implement automatic video scaling (if requested)
Add a scaler interface (defaults to swscale), and if a separate output
wants to use a different scale or format than the default output format,
allow a scaler instance to be created automatically for that output,
which will then receive the new scaled output.
2014-02-18 13:37:56 -07:00
jp9000 971faf09d5 Fix inttypes.h usage
...I neglected to put a '%' character before using the PRI* macros.
2014-02-14 16:05:52 -07:00
jp9000 8b8217f68e Fix a some more linux/GCC specific warnings 2014-02-14 15:56:01 -07:00
jp9000 966b943d5b Remove majority of warnings
There were a *lot* of warnings, managed to remove most of them.

Also, put warning flags before C_FLAGS and CXX_FLAGS, rather than after,
as -Wall -Wextra was overwriting flags that came before it.
2014-02-14 15:13:36 -07:00
jp9000 8e81d8be56 Revamp API and start using doxygen
The API used to be designed in such a way to where it would expect
exports for each individual source/output/encoder/etc.  You would export
functions for each and it would automatically load those functions based
on a specific naming scheme from the module.

The idea behind this was that I wanted to limit the usage of structures
in the API so only functions could be used.  It was an interesting idea
in theory, but this idea turned out to be flawed in a number of ways:

 1.) Requiring exports to create sources/outputs/encoders/etc meant that
     you could not create them by any other means, which meant that
     things like faruton's .net plugin would become difficult.

 2.) Export function declarations could not be checked, therefore if you
     created a function with the wrong parameters and parameter types,
     the compiler wouldn't know how to check for that.

 3.) Required overly complex load functions in libobs just to handle it.
     It makes much more sense to just have a load function that you call
     manually.  Complexity is the bane of all good programs.

 4.) It required that you have functions of specific names, which looked
     and felt somewhat unsightly.

So, to fix these issues, I replaced it with a more commonly used API
scheme, seen commonly in places like kernels and typical C libraries
with abstraction.  You simply create a structure that contains the
callback definitions, and you pass it to a function to register that
definition (such as obs_register_source), which you call in the
obs_module_load of the module.

It will also automatically check the structure size and ensure that it
only loads the required values if the structure happened to add new
values in an API change.

The "main" source file for each module must include obs-module.h, and
must use OBS_DECLARE_MODULE() within that source file.

Also, started writing some doxygen documentation in to the main library
headers.  Will add more detailed documentation as I go.
2014-02-12 08:04:50 -07:00
jp9000 b067440f73 Use bzalloc instead of bmalloc then memset
Reduces needless code repetition and still allows for proper memory
alignment.  Cleans up the code a bit.
2014-02-09 12:34:07 -07:00
jp9000 6c92cf5841 Implement output, improve video/audio subsystems
- Fill in the rest of the FFmpeg test output code for testing so it
   actually properly outputs data.

 - Improve the main video subsystem to be a bit more optimal and
   automatically output I420 or NV12 if needed.

 - Fix audio subsystem insertation and byte calculation.  Now it will
   seamlessly insert new audio data in to the audio stream based upon
   its timestamp value.  (Be extremely cautious when using floating
   point calculations for important things like this, and always round
   your values and check your values)

 - Use 32 byte alignment in case of future optimizations and export a
   function to get the current alignment.

 - Make os_sleepto_ns return true if slept, false if the time has
   already been passed before the call.

 - Fix sinewave output so that it actually properly calculates a middle
   C sinewave.

 - Change the use of row_bytes to linesize (also makes it a bit more
   consistent with FFmpeg's naming as well)
2014-02-09 05:51:06 -07:00
jp9000 3d6d43225f Add planar audio support, improve test output
- Add planar audio support.  FFmpeg and libav use planar audio for many
  encoders, so it was somewhat necessary to add support in libobs
  itself.

- Improve/adjust FFmpeg test output plugin.  The exports were somewhat
  messed up (making me rethink how exports should be done).  Not yet
  functional; it handles video properly, but it still does not handle
  audio properly.

- Improve planar video code.  The planar video code was not properly
  accounting for row sizes for each plane.  Specifying row sizes for
  each plane has now been added.  This will also make it more compatible
  with FFmpeg/libav.

- Fixed a bug where callbacks wouldn't create properly in audio-io and
  video-io code.

- Implement 'blogva' function to allow for va_list usage with libobs
  logging.
2014-02-07 03:03:54 -07:00
jp9000 89cfbdc033 Improve naming scheme of libobs core structures 2014-02-05 21:03:06 -07:00
jp9000 ab4ab95790 Implement output scaling/conversion/downloading
- Implement texture scaling/conversion/downloading for the main view so
  we can finally start getting data to output.

  Also, redesign how it works a bit, it will now properly wait one full
  frame for each step in the process:  rendering the main texture,
  scaling the main texture to an output texture, staging/downloading the
  ouput texture, and then outputting that staged data.  This way, the
  GPU will have more than enough time to fully complete each step.

- Fix a bug with OpenGL plugin's texture staging function.  Was using
  glBindBuffer instead of what should have been used:  glBindTexture.

- Change the naming scheme of the variables in default.effect.  It's now
  named with the idea of just "color matrix" in mind instead of "yuv
  matrix", and instead of DrawRGBToYUV, it's now just DrawMatrix.
2014-02-05 20:36:21 -07:00
Palana ac23df500a Remove external ref count visibility
The returned ref count was never used and the returned value doesn't
actually confer any meaning in a multithreaded environment
2014-02-03 02:34:06 +01:00
jp9000 37ed83acec Use QMetaObject::invokeMethod in libobs callbacks
Doing this ensures Qt thread safety when adding/removing sources and
scenes, because it will defer the function call to the main thread.
2014-02-02 17:03:55 -07:00
jp9000 6e1dd92f0c Improve thread safety in UI code
- Implemented better C++ classes for handling scenes/sources/items in
  obs.hpp, allowing them to automatically increment and decrement the
  references of each, as well as assign them to QVariants.

- Because QVariants are now using the C++ classes, remove the pointer
  QVariant wrapper.

- Use the new C++ classes with the QVariant user data of list box items,
  both for the sake of thread safety and to ensure that the data
  referenced is not freed until removed.  NOTE: still might need some
  testing.

- Implemented a source-remove signal from libobs, and start using that
  signal instead of the source-destroy signal for signalling item
  removal.
2014-02-02 14:26:23 -07:00
jp9000 458325fc6f Add property list callbacks
- Add property list callbacks to sources/outputs/encoders so that if
  necessary user interface can be automatically generated or perhaps a
  property list widget can be used for them.

- Change some of the property API names.  obs_property_list_t felt a bit
  awkward when actually using it, so I just renamed it to
  obs_properties_t.

- Removed the getdata/setdata nad getparam/setparam functions from
  sources/services, they will be superseded by the dynamic procedure
  call API.
2014-02-01 22:46:13 -07:00
jp9000 a12656bd91 Add module UI export capability
Add the ability to be able to call and use toolkit-specific or
program-specific user interface in modules.

User interface code can be either bundled with the module, or 'split'
out in to separate libraries (recommended).

There are three reasons why splitting is recommended:

  1.) It allows plugins to be able to create custom user interface for
      each toolkit if desired.

  2.) Often, UI will be programmed in one language (the language of the
      toolkit), and core logic may be programmed in another.  This
      allows plugins to keep the languages separated if necessary.

  3.) It prevents direct linkage of UI toolkits libraries with core
      module logic.

Splitting is not required, though is recommended if you want your plugin
to be more flexible with other user interface toolkits or programs.

Will implement a generic properties lookup next, which will be used for
automatic UI handling so that plugin UI isn't necessarily required.
2014-02-01 00:49:50 -07:00
jp9000 9116be8d9c Improve safety for settings usage
- Add 'set_default' functions to obs-data.*.  These functions ensure
  that a paramter exists and that the parameter is of a specific type.
  If not, it will create or overwrite the value with the default setting
  instead.

  These functions are meant to be explicitly called before using any of
  the 'get' functions.  The reason why it was designed this way is to
  encourage defaults to be set in a single place/function.

  For example, ideal usage is to create one function for your data,
  "set_my_defaults(obs_data_t data)", set all the default values within
  that function, and then call that function on create/update, that way
  all defaults are centralized to a single place.

- Ensure that data passed to sources/encoders/outputs/etc is always
  valid, and not a null value.

- While I'm remembering, fix a few defaults of the main program config
  file data.
2014-01-28 18:41:24 -07:00
jp9000 c6300d0956 Add a couple more setting data safety measures
Prevent null dereferencing if data is null, instead just make the
functions return and ignore the get/set requests.
2014-01-28 15:45:30 -07:00
jp9000 6c44291693 Implement settings interface for plugins
Add a fairly easy to use settings interface that can be passed to
plugins, and replaced the old character string system that was being
used before.  The new data interface allows for an easier method of
getting/altering settings for plugins, and is built to be serializable
to/from JSON.

Also, removed another wxFormBuilder file that was no longer in use.
2014-01-27 23:14:58 -07:00
jp9000 de288ac541 Rename obs_data structure to obs_program_data
I'm doing this because I might create another data structure called
obs_data for a different purpose.  That and obs_program_data feels a bit
less vague for what it does.
2014-01-27 09:07:13 -07:00