Macros
#define	GAVL_SOURCE_SRC_ALLOC (1<<0)
	Source provides a pointer to an internal structure. More...

#define	GAVL_SOURCE_SRC_FRAMESIZE_MAX (1<<2)
	Samples per frame is just an upper bound. Frames can have smaller sizes also. The last frame is always allowed to have fewer samples, even if this flag is not set. More...

#define	GAVL_SOURCE_SRC_DISCONTINUOUS (1<<3)
	Stream is discontinuous. Set this for video sources delivering graphical subtitles. More...

Typedefs
typedef struct gavl_video_source_s	gavl_video_source_t
	Forward declaration of the video source. More...

typedef struct gavl_audio_source_s	gavl_audio_source_t
	Forward declaration of the audio source. More...

typedef struct gavl_packet_source_s	gavl_packet_source_t
	Forward declaration of the packet source. More...

typedef gavl_source_status_t(*	gavl_audio_source_func_t) (void priv, gavl_audio_frame_t *frame)
	Prototype for obtaining one audio frame. More...

typedef gavl_source_status_t(*	gavl_video_source_func_t) (void priv, gavl_video_frame_t *frame)
	Prototype for obtaining one video frame. More...

typedef gavl_source_status_t(*	gavl_packet_source_func_t) (void priv, gavl_packet_t *p)
	Prototype for obtaining one packet. More...

Enumerations
enum	gavl_source_status_t { GAVL_SOURCE_EOF = 0 , GAVL_SOURCE_OK = 1 , GAVL_SOURCE_AGAIN = 2 }
	Return value of the source function. More...

Functions
GAVL_PUBLIC gavl_video_source_t *	gavl_video_source_create (gavl_video_source_func_t func, void priv, int src_flags, const gavl_video_format_t src_format)
	Create a video source. More...

GAVL_PUBLIC void	gavl_video_source_set_eof (gavl_video_source_t *src, int eof)

GAVL_PUBLIC int	gavl_video_source_get_eof (gavl_video_source_t *src)

GAVL_PUBLIC void	gavl_video_source_drain (gavl_video_source_t *s)

GAVL_PUBLIC void	gavl_video_source_drain_nolock (gavl_video_source_t *s)

GAVL_PUBLIC gavl_video_source_t *	gavl_video_source_create_source (gavl_video_source_func_t func, void priv, int src_flags, gavl_video_source_t src)
	Create a video source from another source. More...

GAVL_PUBLIC void	gavl_video_source_set_lock_funcs (gavl_video_source_t src, gavl_connector_lock_func_t lock_func, gavl_connector_lock_func_t unlock_func, void priv)
	Set lock functions. More...

GAVL_PUBLIC void	gavl_video_source_set_free_func (gavl_video_source_t *src, gavl_connector_free_func_t free_func)
	Set free function. More...

GAVL_PUBLIC gavl_video_options_t *	gavl_video_source_get_options (gavl_video_source_t *s)
	Get coversion options of a video source. More...

GAVL_PUBLIC void	gavl_video_source_reset (gavl_video_source_t *s)
	Reset a video source. More...

GAVL_PUBLIC void	gavl_video_source_destroy (gavl_video_source_t *s)
	Destroy a video source. More...

GAVL_PUBLIC void	gavl_video_source_support_hw (gavl_video_source_t *s)
	Enable hardware surfaces. More...

GAVL_PUBLIC const gavl_video_format_t *	gavl_video_source_get_src_format (gavl_video_source_t *s)
	Get the native format. More...

GAVL_PUBLIC const gavl_video_format_t *	gavl_video_source_get_dst_format (gavl_video_source_t *s)
	Get the output format. More...

GAVL_PUBLIC void	gavl_video_source_set_dst (gavl_video_source_t s, int dst_flags, const gavl_video_format_t dst_format)
	Set the destination mode. More...

GAVL_PUBLIC gavl_source_status_t	gavl_video_source_read_frame (void s, gavl_video_frame_t *frame)
	Read a video frame. More...

GAVL_PUBLIC gavl_audio_source_t *	gavl_audio_source_create (gavl_audio_source_func_t func, void priv, int src_flags, const gavl_audio_format_t src_format)
	Create an audio source. More...

GAVL_PUBLIC void	gavl_audio_source_set_eof (gavl_audio_source_t *src, int eof)

GAVL_PUBLIC int	gavl_audio_source_get_eof (gavl_audio_source_t *src)

GAVL_PUBLIC void	gavl_audio_source_drain (gavl_audio_source_t *s)

GAVL_PUBLIC void	gavl_audio_source_drain_nolock (gavl_audio_source_t *s)

GAVL_PUBLIC gavl_audio_source_t *	gavl_audio_source_create_source (gavl_audio_source_func_t func, void priv, int src_flags, gavl_audio_source_t src)
	Create an audio source from another source. More...

GAVL_PUBLIC void	gavl_audio_source_set_lock_funcs (gavl_audio_source_t src, gavl_connector_lock_func_t lock_func, gavl_connector_lock_func_t unlock_func, void priv)
	Set lock functions. More...

GAVL_PUBLIC void	gavl_audio_source_set_free_func (gavl_audio_source_t *src, gavl_connector_free_func_t free_func)
	Set free function. More...

GAVL_PUBLIC const gavl_audio_format_t *	gavl_audio_source_get_src_format (gavl_audio_source_t *s)
	Get the native format. More...

GAVL_PUBLIC const gavl_audio_format_t *	gavl_audio_source_get_dst_format (gavl_audio_source_t *s)
	Get the output format. More...

GAVL_PUBLIC int	gavl_audio_source_get_dst_flags (gavl_audio_source_t *s)
	Get the output flags. More...

GAVL_PUBLIC void	gavl_audio_source_set_dst (gavl_audio_source_t s, int dst_flags, const gavl_audio_format_t dst_format)
	Set the destination mode. More...

GAVL_PUBLIC gavl_source_status_t	gavl_audio_source_read_frame (void s, gavl_audio_frame_t *frame)
	Read an audio frame. More...

GAVL_PUBLIC void	gavl_audio_source_skip (gavl_audio_source_t *s, int num_samples)
	Skip audio samples at the input. More...

GAVL_PUBLIC void	gavl_audio_source_skip_to (gavl_audio_source_t *s, int64_t t, int scale)

GAVL_PUBLIC int	gavl_audio_source_read_samples (void s, gavl_audio_frame_t frame, int num_samples)
	Read audio samples. More...

GAVL_PUBLIC gavl_audio_options_t *	gavl_audio_source_get_options (gavl_audio_source_t *s)
	Get coversion options of an audio source. More...

GAVL_PUBLIC void	gavl_audio_source_reset (gavl_audio_source_t *s)
	Reset an audio source. More...

GAVL_PUBLIC void	gavl_audio_source_destroy (gavl_audio_source_t *s)
	Destroy an audio source. More...

GAVL_PUBLIC gavl_packet_source_t *	gavl_packet_source_create (gavl_packet_source_func_t func, void *priv, int src_flags)
	Create a packet source. More...

GAVL_PUBLIC void	gavl_packet_source_set_eof (gavl_packet_source_t *src, int eof)

GAVL_PUBLIC int	gavl_packet_source_get_eof (gavl_packet_source_t *src)

GAVL_PUBLIC void	gavl_packet_source_drain (gavl_packet_source_t *src)

GAVL_PUBLIC void	gavl_packet_source_drain_nolock (gavl_packet_source_t *src)

GAVL_PUBLIC gavl_packet_source_t *	gavl_packet_source_create_audio (gavl_packet_source_func_t func, void priv, int src_flags, const gavl_compression_info_t ci, const gavl_audio_format_t *afmt)
	Create an audio packet source. More...

GAVL_PUBLIC gavl_packet_source_t *	gavl_packet_source_create_video (gavl_packet_source_func_t func, void priv, int src_flags, const gavl_compression_info_t ci, const gavl_video_format_t *vfmt)
	Create a video packet source. More...

GAVL_PUBLIC gavl_packet_source_t *	gavl_packet_source_create_text (gavl_packet_source_func_t func, void *priv, int src_flags, int timescale)
	Create a text packet source. More...

GAVL_PUBLIC gavl_packet_source_t *	gavl_packet_source_create_source (gavl_packet_source_func_t func, void priv, int src_flags, gavl_packet_source_t src)
	Create a packet source from another packet source. More...

GAVL_PUBLIC void	gavl_packet_source_set_lock_funcs (gavl_packet_source_t src, gavl_connector_lock_func_t lock_func, gavl_connector_lock_func_t unlock_func, void priv)
	Set lock functions. More...

GAVL_PUBLIC void	gavl_packet_source_set_free_func (gavl_packet_source_t *src, gavl_connector_free_func_t free_func)
	Set free function. More...

GAVL_PUBLIC const gavl_compression_info_t *	gavl_packet_source_get_ci (gavl_packet_source_t *s)
	Get the compression info. More...

GAVL_PUBLIC const gavl_audio_format_t *	gavl_packet_source_get_audio_format (gavl_packet_source_t *s)
	Get the audio format. More...

GAVL_PUBLIC const gavl_video_format_t *	gavl_packet_source_get_video_format (gavl_packet_source_t *s)
	Get the video format. More...

GAVL_PUBLIC int	gavl_packet_source_get_timescale (gavl_packet_source_t *s)
	Get the time scale. More...

GAVL_PUBLIC gavl_source_status_t	gavl_packet_source_read_packet (void s, gavl_packet_t *p)
	Read one packet. More...

GAVL_PUBLIC void	gavl_packet_source_destroy (gavl_packet_source_t *s)
	Destroy a packet source. More...

Detailed Description

A/V sources are elements, which can be used to conveniently pass audio or video frames from one program module to another. They do implicit format conversion and optimized buffer handling.

A module, which provides A/V frames, creates a source module and tells the native format in which it provides the frames. If you want to obtain the frames from the source, you tell the desired output format and if you intend to overwrite the frames.

To obtain the frames, you pass the address of the pointer of the frame. If the pointer is NULL, it will be set to an internal buffer.

The return value is of the type gavl_source_status_t, which can have 3 states depending on whether the stream ended (EOF) or a frame is available or if no frame is available right now. The latter can be used to implement parts of the pipeline in pull mode (the default) and others in push mode.

Macro Definition Documentation

◆ GAVL_SOURCE_SRC_ALLOC

#define GAVL_SOURCE_SRC_ALLOC (1<<0)

Source provides a pointer to an internal structure.

◆ GAVL_SOURCE_SRC_FRAMESIZE_MAX

#define GAVL_SOURCE_SRC_FRAMESIZE_MAX (1<<2)

Samples per frame is just an upper bound. Frames can have smaller sizes also. The last frame is always allowed to have fewer samples, even if this flag is not set.

◆ GAVL_SOURCE_SRC_DISCONTINUOUS

#define GAVL_SOURCE_SRC_DISCONTINUOUS (1<<3)

Stream is discontinuous. Set this for video sources delivering graphical subtitles.

Typedef Documentation

◆ gavl_video_source_t

typedef struct gavl_video_source_s gavl_video_source_t

Forward declaration of the video source.

You don't want to know what's inside

◆ gavl_audio_source_t

typedef struct gavl_audio_source_s gavl_audio_source_t

Forward declaration of the audio source.

You don't want to know what's inside

◆ gavl_packet_source_t

typedef struct gavl_packet_source_s gavl_packet_source_t

Forward declaration of the packet source.

You don't want to know what's inside

◆ gavl_audio_source_func_t

typedef gavl_source_status_t(* gavl_audio_source_func_t) (void *priv, gavl_audio_frame_t **frame)

Prototype for obtaining one audio frame.

Parameters

priv	Client data
frame	Where to store the frame

If *frame is non-null, the data will be copied there, otherwise the address of an internally allocated frame is returned

◆ gavl_video_source_func_t

typedef gavl_source_status_t(* gavl_video_source_func_t) (void *priv, gavl_video_frame_t **frame)

Prototype for obtaining one video frame.

Parameters

priv	Client data
frame	Where to store the frame

If *frame is non-null, the data will be copied there, otherwise the address of an internally allocated frame is returned.

◆ gavl_packet_source_func_t

typedef gavl_source_status_t(* gavl_packet_source_func_t) (void *priv, gavl_packet_t **p)

Prototype for obtaining one packet.

Parameters

priv	Client data
frame	Where to store the packet

If *packet is non-null, the data will be copied there, otherwise the address of an internally allocated packet is returned.

Enumeration Type Documentation

◆ gavl_source_status_t

enum gavl_source_status_t

Return value of the source function.

Enumerator
GAVL_SOURCE_EOF	End of file, no more frames available.
GAVL_SOURCE_OK	Frame available.
GAVL_SOURCE_AGAIN	No frame available right now, might try later.

Function Documentation

◆ gavl_video_source_create()

GAVL_PUBLIC gavl_video_source_t* gavl_video_source_create	(	gavl_video_source_func_t	func,
		void *	priv,
		int	src_flags,
		const gavl_video_format_t *	src_format
	)

Create a video source.

Parameters

func	Function to get the frames from
priv	Client data to pass to func
src_flags	Flags describing the source
src_format	Native source format

Returns: A newly created video source

◆ gavl_video_source_create_source()

GAVL_PUBLIC gavl_video_source_t* gavl_video_source_create_source	(	gavl_video_source_func_t	func,
		void *	priv,
		int	src_flags,
		gavl_video_source_t *	src
	)

Create a video source from another source.

Parameters

func	Function to get the frames from
priv	Client data to pass to func
src_flags	Flags describing the source
src	preceeding source in the pipeline

Returns: A newly created video source

This will take the destination format of the preceeding source as the input format

◆ gavl_video_source_set_lock_funcs()

GAVL_PUBLIC void gavl_video_source_set_lock_funcs	(	gavl_video_source_t *	src,
		gavl_connector_lock_func_t	lock_func,
		gavl_connector_lock_func_t	unlock_func,
		void *	priv
	)

Set lock functions.

Parameters

src	A video source
lock_func	Function called before a frame is read
unlock_func	Function called after a frame is read
priv	Client data (e.g. a mutex) to pass to the functions

◆ gavl_video_source_set_free_func()

GAVL_PUBLIC void gavl_video_source_set_free_func	(	gavl_video_source_t *	src,
		gavl_connector_free_func_t	free_func
	)

Set free function.

Parameters

src	A video source
free_func	Function called with the private data when the source is destroyed

Use this if you don't want to keep a reference to the private data along wit the source

◆ gavl_video_source_get_options()

GAVL_PUBLIC gavl_video_options_t* gavl_video_source_get_options ( gavl_video_source_t * s )

Get coversion options of a video source.

Parameters

s	A video source

Returns: Conversion options

◆ gavl_video_source_reset()

GAVL_PUBLIC void gavl_video_source_reset ( gavl_video_source_t * s )

Reset a video source.

Parameters

s	A video source

Call this after seeking to reset the internal state

◆ gavl_video_source_destroy()

GAVL_PUBLIC void gavl_video_source_destroy ( gavl_video_source_t * s )

Destroy a video source.

Parameters

s	A video source

Destroy a video source including all video frames ever created by it.

◆ gavl_video_source_support_hw()

GAVL_PUBLIC void gavl_video_source_support_hw ( gavl_video_source_t * s )

Enable hardware surfaces.

Parameters

s	A video source

Call this function if you can handle hardware surfaces on the destination side. If this function is not called, hardware surfaces are copied to RAM before they are passed to the destination.

◆ gavl_video_source_get_src_format()

GAVL_PUBLIC const gavl_video_format_t* gavl_video_source_get_src_format ( gavl_video_source_t * s )

Get the native format.

Parameters

s	A video source

Returns: The native video format

◆ gavl_video_source_get_dst_format()

GAVL_PUBLIC const gavl_video_format_t* gavl_video_source_get_dst_format ( gavl_video_source_t * s )

Get the output format.

Parameters

s	A video source

Returns: The video format in which frames are read

◆ gavl_video_source_set_dst()

GAVL_PUBLIC void gavl_video_source_set_dst	(	gavl_video_source_t *	s,
		int	dst_flags,
		const gavl_video_format_t *	dst_format
	)

Set the destination mode.

Parameters

s	A video source
dst_flags	Flags
dst_format	Format in which the frames will be read

If you accept the source format (as returned by gavl_video_source_get_src_format) you can pass NULL for the dst_format.

If the destination format differs from the source format, the frames will converted. For this, we have a gavl_video_converter_t and also do simple framerate conversion which repeats/drops frames.

◆ gavl_video_source_read_frame()

GAVL_PUBLIC gavl_source_status_t gavl_video_source_read_frame	(	void *	s,
		gavl_video_frame_t **	frame
	)

Read a video frame.

Parameters

s	A video source
frame	Address of a frame.

This reads one frame from the source. If *frame is NULL it will be set to an internal buffer, otherwise the data is copied to the frame you pass.

◆ gavl_audio_source_create()

GAVL_PUBLIC gavl_audio_source_t* gavl_audio_source_create	(	gavl_audio_source_func_t	func,
		void *	priv,
		int	src_flags,
		const gavl_audio_format_t *	src_format
	)

Create an audio source.

Parameters

func	Function to get the frames from
priv	Client data to pass to func
src_flags	Flags describing the source
src_format	Native source format

Returns: A newly created audio source

◆ gavl_audio_source_create_source()

GAVL_PUBLIC gavl_audio_source_t* gavl_audio_source_create_source	(	gavl_audio_source_func_t	func,
		void *	priv,
		int	src_flags,
		gavl_audio_source_t *	src
	)

Create an audio source from another source.

Parameters

func	Function to get the frames from
priv	Client data to pass to func
src_flags	Flags describing the source
src	preceeding source in the pipeline

Returns: A newly created audio source

This will take the destination format of the preceeding source as the input format

◆ gavl_audio_source_set_lock_funcs()

GAVL_PUBLIC void gavl_audio_source_set_lock_funcs	(	gavl_audio_source_t *	src,
		gavl_connector_lock_func_t	lock_func,
		gavl_connector_lock_func_t	unlock_func,
		void *	priv
	)

Set lock functions.

Parameters

src	An audio source
lock_func	Function called before a frame is read
unlock_func	Function called after a frame is read
priv	Client data (e.g. a mutex) to pass to the functions

◆ gavl_audio_source_set_free_func()

GAVL_PUBLIC void gavl_audio_source_set_free_func	(	gavl_audio_source_t *	src,
		gavl_connector_free_func_t	free_func
	)

Set free function.

Parameters

src	A audio source
free_func	Function called with the private data when the source is destroyed

Use this if you don't want to keep a reference to the private data along wit the source

◆ gavl_audio_source_get_src_format()

GAVL_PUBLIC const gavl_audio_format_t* gavl_audio_source_get_src_format ( gavl_audio_source_t * s )

Get the native format.

Parameters

s	An audio source

Returns: The native audio format

◆ gavl_audio_source_get_dst_format()

GAVL_PUBLIC const gavl_audio_format_t* gavl_audio_source_get_dst_format ( gavl_audio_source_t * s )

Get the output format.

Parameters

s	An audio source

Returns: The format in which frames will be read

◆ gavl_audio_source_get_dst_flags()

GAVL_PUBLIC int gavl_audio_source_get_dst_flags ( gavl_audio_source_t * s )

Get the output flags.

Parameters

s	An audio source

Returns: The flags, which were passed to gavl_audio_source_set_dst

◆ gavl_audio_source_set_dst()

GAVL_PUBLIC void gavl_audio_source_set_dst	(	gavl_audio_source_t *	s,
		int	dst_flags,
		const gavl_audio_format_t *	dst_format
	)

Set the destination mode.

Parameters

s	An audio source
dst_flags	Flags
dst_format	Format in which the frames will be read

If you accept the source format (as returned by gavl_video_source_get_src_format) you can pass NULL for the dst_format.

If the destination format differs from the source format, the frames will converted. For this, we have a gavl_audio_converter_t. In addition, if the samples_per_frame members are different, the frames will be repackaged.

◆ gavl_audio_source_read_frame()

GAVL_PUBLIC gavl_source_status_t gavl_audio_source_read_frame	(	void *	s,
		gavl_audio_frame_t **	frame
	)

Read an audio frame.

Parameters

s	An audio source
frame	Address of a frame.

Returns: The status

This reads one frame from the source. If *frame is NULL it will be set to an internal buffer, otherwise the data is copied to the frame you pass.

If the return value is GAVL_SOURCE_AGAIN, you might have an imcomplete frame. In this case you must call this function again with exactly the same frame argument.

◆ gavl_audio_source_skip()

GAVL_PUBLIC void gavl_audio_source_skip	(	gavl_audio_source_t *	s,
		int	num_samples
	)

Skip audio samples at the input.

Parameters

s	An audio source
num_samples	Number of samples to skip

This skips a number of input samples. It can be used after seeking if the sample position after a seek is no multiple of the frame size.

◆ gavl_audio_source_read_samples()

GAVL_PUBLIC int gavl_audio_source_read_samples	(	void *	s,
		gavl_audio_frame_t *	frame,
		int	num_samples
	)

Read audio samples.

Parameters

s	An audio source
frame	An audio frame
num_samples	Number of samples to read

This is for APIs, which pass the number of samples to each read() call and the number is not known in advance.

◆ gavl_audio_source_get_options()

GAVL_PUBLIC gavl_audio_options_t* gavl_audio_source_get_options ( gavl_audio_source_t * s )

Get coversion options of an audio source.

Parameters

s	An audio source

Returns: Conversion options

◆ gavl_audio_source_reset()

GAVL_PUBLIC void gavl_audio_source_reset ( gavl_audio_source_t * s )

Reset an audio source.

Parameters

s	An audio source

This resets the internal state as if no frame was read yet.

◆ gavl_audio_source_destroy()

GAVL_PUBLIC void gavl_audio_source_destroy ( gavl_audio_source_t * s )

Destroy an audio source.

Parameters

s	An audio source

Destroy an audio source including all audio frames ever created by it.

◆ gavl_packet_source_create()

GAVL_PUBLIC gavl_packet_source_t* gavl_packet_source_create	(	gavl_packet_source_func_t	func,
		void *	priv,
		int	src_flags
	)

Create a packet source.

Parameters

func	Callback for reading one frame
priv	Client data to be passed to func
src_flags	Flags

Typically, you'll use the more specific functions gavl_packet_source_create_audio, gavl_packet_source_create_video, gavl_packet_source_create_text and gavl_packet_source_create_source

◆ gavl_packet_source_create_audio()

GAVL_PUBLIC gavl_packet_source_t* gavl_packet_source_create_audio	(	gavl_packet_source_func_t	func,
		void *	priv,
		int	src_flags,
		const gavl_compression_info_t *	ci,
		const gavl_audio_format_t *	afmt
	)

Create an audio packet source.

Parameters

func	Callback for reading one frame
priv	Client data to be passed to func
src_flags	Flags
ci	Compression info
afmt	Format of the audio stream

◆ gavl_packet_source_create_video()

GAVL_PUBLIC gavl_packet_source_t* gavl_packet_source_create_video	(	gavl_packet_source_func_t	func,
		void *	priv,
		int	src_flags,
		const gavl_compression_info_t *	ci,
		const gavl_video_format_t *	vfmt
	)

Create a video packet source.

Parameters

func	Callback for reading one frame
priv	Client data to be passed to func
src_flags	Flags
ci	Compression info
vfmt	Format of the video stream

◆ gavl_packet_source_create_text()

GAVL_PUBLIC gavl_packet_source_t* gavl_packet_source_create_text	(	gavl_packet_source_func_t	func,
		void *	priv,
		int	src_flags,
		int	timescale
	)

Create a text packet source.

Parameters

func	Callback for reading one frame
priv	Client data to be passed to func
src_flags	Flags
scale	Timescale of the text packets

◆ gavl_packet_source_create_source()

GAVL_PUBLIC gavl_packet_source_t* gavl_packet_source_create_source	(	gavl_packet_source_func_t	func,
		void *	priv,
		int	src_flags,
		gavl_packet_source_t *	src
	)

Create a packet source from another packet source.

Parameters

func	Callback for reading one frame
priv	Client data to be passed to func
src_flags	Flags
src	Source to copy the stream specific data from

◆ gavl_packet_source_set_lock_funcs()

GAVL_PUBLIC void gavl_packet_source_set_lock_funcs	(	gavl_packet_source_t *	src,
		gavl_connector_lock_func_t	lock_func,
		gavl_connector_lock_func_t	unlock_func,
		void *	priv
	)

Set lock functions.

Parameters

src	A packet source
lock_func	Function called before a packet is read
unlock_func	Function called after a packet is read
priv	Client data (e.g. a mutex) to pass to the functions

◆ gavl_packet_source_set_free_func()

GAVL_PUBLIC void gavl_packet_source_set_free_func	(	gavl_packet_source_t *	src,
		gavl_connector_free_func_t	free_func
	)

Set free function.

Parameters

src	A packet source
free_func	Function called with the private data when the source is destroyed

Use this if you don't want to keep a reference to the private data along wit the source

◆ gavl_packet_source_get_ci()

GAVL_PUBLIC const gavl_compression_info_t* gavl_packet_source_get_ci ( gavl_packet_source_t * s )

Get the compression info.

Parameters

s	A packet source

Returns: The compression info or NULL

◆ gavl_packet_source_get_audio_format()

GAVL_PUBLIC const gavl_audio_format_t* gavl_packet_source_get_audio_format ( gavl_packet_source_t * s )

Get the audio format.

Parameters

s	A packet source

Returns: The audio format or NULL

◆ gavl_packet_source_get_video_format()

GAVL_PUBLIC const gavl_video_format_t* gavl_packet_source_get_video_format ( gavl_packet_source_t * s )

Get the video format.

Parameters

s	A packet source

Returns: The video format or NULL

◆ gavl_packet_source_get_timescale()

GAVL_PUBLIC int gavl_packet_source_get_timescale ( gavl_packet_source_t * s )

Get the time scale.

Parameters

s	A packet source

Returns: The time scale

◆ gavl_packet_source_read_packet()

GAVL_PUBLIC gavl_source_status_t gavl_packet_source_read_packet	(	void *	s,
		gavl_packet_t **	p
	)

Read one packet.

Parameters

s	A packet source

Returns: The status

◆ gavl_packet_source_destroy()

GAVL_PUBLIC void gavl_packet_source_destroy ( gavl_packet_source_t * s )

Destroy a packet source.

Parameters

s	A packet source

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ GAVL_SOURCE_SRC_ALLOC

◆ GAVL_SOURCE_SRC_FRAMESIZE_MAX

◆ GAVL_SOURCE_SRC_DISCONTINUOUS

Typedef Documentation

◆ gavl_video_source_t

◆ gavl_audio_source_t

◆ gavl_packet_source_t

◆ gavl_audio_source_func_t

◆ gavl_video_source_func_t

◆ gavl_packet_source_func_t

Enumeration Type Documentation

◆ gavl_source_status_t

Function Documentation

◆ gavl_video_source_create()

◆ gavl_video_source_create_source()

◆ gavl_video_source_set_lock_funcs()

◆ gavl_video_source_set_free_func()

◆ gavl_video_source_get_options()

◆ gavl_video_source_reset()

◆ gavl_video_source_destroy()

◆ gavl_video_source_support_hw()

◆ gavl_video_source_get_src_format()

◆ gavl_video_source_get_dst_format()

◆ gavl_video_source_set_dst()

◆ gavl_video_source_read_frame()

◆ gavl_audio_source_create()

◆ gavl_audio_source_create_source()

◆ gavl_audio_source_set_lock_funcs()

◆ gavl_audio_source_set_free_func()

◆ gavl_audio_source_get_src_format()

◆ gavl_audio_source_get_dst_format()

◆ gavl_audio_source_get_dst_flags()

◆ gavl_audio_source_set_dst()

◆ gavl_audio_source_read_frame()

◆ gavl_audio_source_skip()

◆ gavl_audio_source_read_samples()

◆ gavl_audio_source_get_options()

◆ gavl_audio_source_reset()

◆ gavl_audio_source_destroy()

◆ gavl_packet_source_create()

◆ gavl_packet_source_create_audio()

◆ gavl_packet_source_create_video()

◆ gavl_packet_source_create_text()

◆ gavl_packet_source_create_source()

◆ gavl_packet_source_set_lock_funcs()

◆ gavl_packet_source_set_free_func()

◆ gavl_packet_source_get_ci()

◆ gavl_packet_source_get_audio_format()

◆ gavl_packet_source_get_video_format()

◆ gavl_packet_source_get_timescale()

◆ gavl_packet_source_read_packet()

◆ gavl_packet_source_destroy()