out_video.c File Reference

#include <gpac/filters.h>
#include <gpac/constants.h>
#include <gpac/modules/video_out.h>
#include <gpac/color.h>
#include "../compositor/gl_inc.h"

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Data Structures
struct	GF_VideoOutCtx

Macros
#define	VOUT_USE_OPENGL
#define	DEL_SHADER(_a)   if (_a) { glDeleteShader(_a); _a = 0; }
#define	DEL_PROGRAM(_a)   if (_a) { glDeleteProgram(_a); _a = 0; }
#define	GF_SHADERID   u32
#define	DEF_VIDEO_AUDIO_ADVANCE_MS   15
#define	OFFS(_n)   #_n, offsetof(GF_VideoOutCtx, _n)

Typedefs
typedef u32	GF_VideoOutMode
typedef u32	GF_VideoFlipMode

Enumerations
enum	GF_VideoOutMode_t { MODE_GL , MODE_GL_PBO , MODE_2D , MODE_2D_SOFT }
enum	GF_VideoFlipMode_t {   FLIP_NO , FLIP_VERT , FLIP_HORIZ , FLIP_BOTH ,   FLIP_BOTH2 }

Functions
static GF_Err	vout_draw_frame (GF_VideoOutCtx *ctx)
static void	vout_make_gl_current (GF_VideoOutCtx *ctx)
static Bool	vout_compile_shader (GF_SHADERID shader_id, const char *name, const char *source)
static void	vout_reset_overlay (GF_Filter *filter, GF_VideoOutCtx *ctx)
static void	vout_set_caption (GF_VideoOutCtx *ctx)
static GF_Err	resize_video_output (GF_VideoOutCtx *ctx, u32 dw, u32 dh)
static void	load_gl_tx_matrix (GF_VideoOutCtx *ctx)
static GF_Err	vout_configure_pid (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
static Bool	vout_on_event (void *cbk, GF_Event *evt)
GF_VideoOutput *	gf_filter_claim_opengl_provider (GF_Filter *filter)
Bool	gf_filter_unclaim_opengl_provider (GF_Filter *filter, GF_VideoOutput *vout)
void	gf_filter_load_script (GF_Filter *filter, const char *js_file, const char *filters_blacklist)
static GF_Err	vout_initialize (GF_Filter *filter)
static void	vout_finalize (GF_Filter *filter)
static void	vout_draw_overlay (GF_VideoOutCtx *ctx)
static void	vout_draw_gl_quad (GF_VideoOutCtx *ctx, Bool flip_texture)
static void	vout_draw_gl_hw_textures (GF_VideoOutCtx *ctx, GF_FilterFrameInterface *hwf)
static void	vbo_changed (GF_VideoOutCtx *ctx)
static void	vout_draw_gl (GF_VideoOutCtx *ctx, GF_FilterPacket *pck)
void	vout_draw_2d (GF_VideoOutCtx *ctx, GF_FilterPacket *pck)
static GF_Err	vout_process (GF_Filter *filter)
static Bool	vout_process_event (GF_Filter *filter, const GF_FilterEvent *fevt)
GF_Err	vout_update_arg (GF_Filter *filter, const char *arg_name, const GF_PropertyValue *new_val)
const GF_FilterRegister *	vout_register (GF_FilterSession *session)

Variables
static char *	default_glsl_vertex
static u32	nb_vout_inst =0
static const GF_FilterArgs	VideoOutArgs []
static const GF_FilterCapability	VideoOutCaps []
GF_FilterRegister	VideoOutRegister

---

Data Structure Documentation

GF_VideoOutCtx

struct GF_VideoOutCtx

Collaboration diagram for GF_VideoOutCtx:

Data Fields
char *	drv
GF_VideoOutMode	disp
Bool	vsync
Bool	linear
Bool	fullscreen
Bool	drop
Bool	hide
Bool	step
Bool	vjs
Bool	async
GF_Fraction64	dur
Double	speed
Double	hold
u32	back
u32	vrot
GF_VideoFlipMode	vflip
GF_PropVec2i	wsize
GF_PropVec2i	owsize
GF_PropVec2i	wpos
Double	start
u32	buffer
u32	mbuffer
u32	rbuffer
u32	wid
GF_Fraction	vdelay
const char *	out
GF_PropUIntList	dumpframes
char *	oltxt
GF_PropVec4i	olwnd
GF_PropVec2i	olsize
GF_PropData	oldata
Double	media_offset
GF_Filter *	filter
GF_FilterPid *	pid
u32	width
u32	height
u32	stride
u32	pfmt
u32	timescale
GF_Fraction	fps
GF_VideoOutput *	video_out
u64	first_cts_plus_one
u64	clock_at_first_cts
u64	last_frame_clock
u64	clock_at_first_frame
u32	last_pck_dur_us
Bool	aborted
u32	display_width
u32	display_height
Bool	display_changed
Float	dh
Float	dw
Float	oh
Float	ow
Bool	has_alpha
u32	nb_frames
u32	key_states
Float	c_w
Float	c_h
Float	c_x
Float	c_y
u32	raw_grab
GF_DisplayOrientationType	screen_orientation
GLint	glsl_program
GF_SHADERID	vertex_shader
GF_SHADERID	fragment_shader
GF_GLTextureWrapper	tx
GLuint	overlay_tx
GLuint	vbo_vx
GLuint	vbo_tx
u32	num_textures
u32	uv_w
u32	uv_h
u32	uv_stride
u32	bit_depth
Bool	is_yuv
Bool	in_fullscreen
u32	nb_drawn
GF_Fraction	sar
Bool	force_release
GF_FilterPacket *	last_pck
s64	pid_delay
Bool	buffer_done
Bool	no_buffering
Bool	dump_done
u32	dump_f_idx
char *	dump_buffer
Bool	force_vout
Bool	do_seek
Bool	update_oldata
Bool	full_range
s32	cmx
u64	rebuffer
Bool	force_reconfig_pid
GF_VideoFlipMode	pid_vflip
u32	pid_vrot
Bool	too_slow

Macro Definition Documentation

VOUT_USE_OPENGL

#define VOUT_USE_OPENGL

DEL_SHADER

#define DEL_SHADER

(

_a

)

if (_a) { glDeleteShader(_a); _a = 0; }

DEL_PROGRAM

#define DEL_PROGRAM

(

_a

)

if (_a) { glDeleteProgram(_a); _a = 0; }

GF_SHADERID

#define GF_SHADERID   u32

DEF_VIDEO_AUDIO_ADVANCE_MS

#define DEF_VIDEO_AUDIO_ADVANCE_MS   15

OFFS

#define OFFS

(

_n

)

#_n, offsetof(GF_VideoOutCtx, _n)

Typedef Documentation

GF_VideoOutMode

typedef u32 GF_VideoOutMode

GF_VideoFlipMode

typedef u32 GF_VideoFlipMode

Enumeration Type Documentation

GF_VideoOutMode_t

enum GF_VideoOutMode_t

Enumerator
MODE_GL
MODE_GL_PBO
MODE_2D
MODE_2D_SOFT

GF_VideoFlipMode_t

enum GF_VideoFlipMode_t

Enumerator
FLIP_NO
FLIP_VERT
FLIP_HORIZ
FLIP_BOTH
FLIP_BOTH2

Function Documentation

vout_draw_frame()

static GF_Err vout_draw_frame ( GF_VideoOutCtx *  ctx )

static

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vout_make_gl_current()

static void vout_make_gl_current ( GF_VideoOutCtx *  ctx )

static

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vout_compile_shader()

static Bool vout_compile_shader ( GF_SHADERID  shader_id, const char *  name, const char *  source  )

static

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vout_reset_overlay()

static void vout_reset_overlay ( GF_Filter *  filter, GF_VideoOutCtx *  ctx  )

static

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vout_set_caption()

static void vout_set_caption ( GF_VideoOutCtx *  ctx )

static

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resize_video_output()

static GF_Err resize_video_output ( GF_VideoOutCtx *  ctx, u32  dw, u32  dh  )

static

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load_gl_tx_matrix()

static void load_gl_tx_matrix ( GF_VideoOutCtx *  ctx )

static

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vout_configure_pid()

static GF_Err vout_configure_pid ( GF_Filter *  filter, GF_FilterPid *  pid, Bool  is_remove  )

static

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vout_on_event()

static Bool vout_on_event ( void *  cbk, GF_Event *  evt  )

static

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gf_filter_claim_opengl_provider()

GF_VideoOutput * gf_filter_claim_opengl_provider

(

GF_Filter *

filter

)

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gf_filter_unclaim_opengl_provider()

Bool gf_filter_unclaim_opengl_provider	(	GF_Filter *	filter,
		GF_VideoOutput *	vout
	)

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gf_filter_load_script()

void gf_filter_load_script	(	GF_Filter *	filter,
		const char *	js_file,
		const char *	filters_blacklist
	)

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vout_initialize()

static GF_Err vout_initialize ( GF_Filter *  filter )

static

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vout_finalize()

static void vout_finalize ( GF_Filter *  filter )

static

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vout_draw_overlay()

static void vout_draw_overlay ( GF_VideoOutCtx *  ctx )

static

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vout_draw_gl_quad()

static void vout_draw_gl_quad ( GF_VideoOutCtx *  ctx, Bool  flip_texture  )

static

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vout_draw_gl_hw_textures()

static void vout_draw_gl_hw_textures ( GF_VideoOutCtx *  ctx, GF_FilterFrameInterface *  hwf  )

static

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vbo_changed()

static void vbo_changed ( GF_VideoOutCtx *  ctx )

static

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vout_draw_gl()

static void vout_draw_gl ( GF_VideoOutCtx *  ctx, GF_FilterPacket *  pck  )

static

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vout_draw_2d()

void vout_draw_2d	(	GF_VideoOutCtx *	ctx,
		GF_FilterPacket *	pck
	)

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vout_process()

static GF_Err vout_process ( GF_Filter *  filter )

static

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vout_process_event()

static Bool vout_process_event ( GF_Filter *  filter, const GF_FilterEvent *  fevt  )

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vout_update_arg()

GF_Err vout_update_arg	(	GF_Filter *	filter,
		const char *	arg_name,
		const GF_PropertyValue *	new_val
	)

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vout_register()

const GF_FilterRegister * vout_register

(

GF_FilterSession *

session

)

Variable Documentation

default_glsl_vertex

char* default_glsl_vertex

static

Initial value:

= "\
        attribute vec4 gfVertex;\n\
        attribute vec4 gfTexCoord;\n\
        uniform mat4 gfModViewProjMatrix;\n\
        uniform mat4 gfTextureMatrix;\n\
        uniform bool hasTextureMatrix;\n\
        varying vec2 TexCoord;\n\
        void main(void)\n\
        {\n\
                gl_Position = gfModViewProjMatrix * gfVertex;\n\
                if (hasTextureMatrix) {\n\
                        TexCoord = vec2(gfTextureMatrix * gfTexCoord);\n\
                } else {\n\
                        TexCoord = vec2(gfTexCoord);\n\
                }\n\
        }"

nb_vout_inst

u32 nb_vout_inst =0

static

VideoOutArgs

const GF_FilterArgs VideoOutArgs[]

static

VideoOutCaps

const GF_FilterCapability VideoOutCaps[]

static

Initial value:

=
{
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_STREAM_TYPE, GF_STREAM_VISUAL),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_RAW),
 
}

VideoOutRegister

GF_FilterRegister VideoOutRegister

Initial value:

= {
        .name = "vout",
 
        GF_FS_SET_HELP("This filter displays a single visual input PID in a window.\n"
        "The window is created unless a window handle (HWND, xWindow, etc) is indicated in the config file ( [Temp]OSWnd=ptr).\n"
        "The output uses GPAC video output module indicated in [-drv]() option or in the config file (see GPAC core help).\n"
        "The video output module can be further configured (see GPAC core help).\n"
        "The filter can use OpenGL or 2D blit of the graphics card, depending on the OS support.\n"
        "The filter can be used do dump frames as written by the graphics card (GPU read-back) using [-dumpframes]().\n"
        "In this case, the window is not visible and only the listed frames are drawn to the GPU.\n"
        "The pixel format of the dumped frame is always RGB in OpenGL and matches the video backbuffer format in 2D mode.\n"
        )
        .private_size = sizeof(GF_VideoOutCtx),
        .flags = GF_FS_REG_MAIN_THREAD,
        .args = VideoOutArgs,
        SETCAPS(VideoOutCaps),
        .initialize = vout_initialize,
        .finalize = vout_finalize,
        .configure_pid = vout_configure_pid,
        .process = vout_process,
        .process_event = vout_process_event,
        .update_arg = vout_update_arg,
        .hint_class_type = GF_FS_CLASS_MM_IO
}