MMAL to OMX IL conversion utilities

Classes
union	OMX_FORMAT_PARAM_TYPE

Typedefs
typedef union OMX_FORMAT_PARAM_TYPE	OMX_FORMAT_PARAM_TYPE

Functions
OMX_ERRORTYPE	mmalil_error_to_omx (MMAL_STATUS_T status)
MMAL_STATUS_T	mmalil_error_to_mmal (OMX_ERRORTYPE error)
uint32_t	mmalil_buffer_flags_to_mmal (OMX_U32 flags)
OMX_U32	mmalil_buffer_flags_to_omx (uint32_t flags)
void	mmalil_buffer_header_to_omx (OMX_BUFFERHEADERTYPE *omx, MMAL_BUFFER_HEADER_T *mmal)
void	mmalil_buffer_header_to_mmal (MMAL_BUFFER_HEADER_T *mmal, OMX_BUFFERHEADERTYPE *omx)
OMX_PORTDOMAINTYPE	mmalil_es_type_to_omx_domain (MMAL_ES_TYPE_T type)
MMAL_ES_TYPE_T	mmalil_omx_domain_to_es_type (OMX_PORTDOMAINTYPE domain)
uint32_t	mmalil_omx_audio_coding_to_encoding (OMX_AUDIO_CODINGTYPE coding)
OMX_AUDIO_CODINGTYPE	mmalil_encoding_to_omx_audio_coding (uint32_t encoding)
uint32_t	mmalil_omx_video_coding_to_encoding (OMX_VIDEO_CODINGTYPE coding)
OMX_VIDEO_CODINGTYPE	mmalil_encoding_to_omx_video_coding (uint32_t encoding)
uint32_t	mmalil_omx_image_coding_to_encoding (OMX_IMAGE_CODINGTYPE coding)
OMX_IMAGE_CODINGTYPE	mmalil_encoding_to_omx_image_coding (uint32_t encoding)
uint32_t	mmalil_omx_coding_to_encoding (uint32_t encoding, OMX_PORTDOMAINTYPE domain)
uint32_t	mmalil_omx_color_format_to_encoding (OMX_COLOR_FORMATTYPE coding)
OMX_COLOR_FORMATTYPE	mmalil_encoding_to_omx_color_format (uint32_t encoding)
uint32_t	mmalil_omx_color_space_to_mmal (OMX_COLORSPACETYPE coding)
OMX_COLORSPACETYPE	mmalil_color_space_to_omx (uint32_t coding)
uint32_t	mmalil_omx_video_profile_to_mmal (OMX_U32 level, OMX_VIDEO_CODINGTYPE coding)
OMX_U32	mmalil_video_profile_to_omx (uint32_t profile)
uint32_t	mmalil_omx_video_level_to_mmal (OMX_U32 level, OMX_VIDEO_CODINGTYPE coding)
OMX_U32	mmalil_video_level_to_omx (uint32_t level)
MMAL_VIDEO_RATECONTROL_T	mmalil_omx_video_ratecontrol_to_mmal (OMX_VIDEO_CONTROLRATETYPE omx)
OMX_VIDEO_CONTROLRATETYPE	mmalil_video_ratecontrol_to_omx (MMAL_VIDEO_RATECONTROL_T mmal)
MMAL_VIDEO_INTRA_REFRESH_T	mmalil_omx_video_intrarefresh_to_mmal (OMX_VIDEO_INTRAREFRESHTYPE omx)
OMX_INDEXTYPE	mmalil_omx_audio_param_index (OMX_AUDIO_CODINGTYPE coding, OMX_U32 *size)
OMX_AUDIO_CODINGTYPE	mmalil_omx_audio_param_index_to_coding (OMX_INDEXTYPE index)
MMAL_STATUS_T	mmalil_omx_default_channel_mapping (OMX_AUDIO_CHANNELTYPE *channel_mapping, unsigned int nchannels)
MMAL_FOURCC_T	mmalil_omx_audio_param_to_format (MMAL_ES_FORMAT_T *format, OMX_AUDIO_CODINGTYPE coding, OMX_FORMAT_PARAM_TYPE *param)
OMX_AUDIO_CODINGTYPE	mmalil_format_to_omx_audio_param (OMX_FORMAT_PARAM_TYPE *param, OMX_INDEXTYPE *param_index, MMAL_ES_FORMAT_T *format)

Detailed Description

Typedef Documentation

typedef union OMX_FORMAT_PARAM_TYPE OMX_FORMAT_PARAM_TYPE

Union of all the OMX_VIDEO/AUDIO_PARAM types

Function Documentation

uint32_t mmalil_buffer_flags_to_mmal

(

OMX_U32

flags

)

Convert MMAL buffer header flags into OMX buffer header flags.

Parameters

flags

OMX buffer header flags.

Returns

MMAL buffer header flags.

OMX_U32 mmalil_buffer_flags_to_omx

(

uint32_t

flags

)

Convert OMX buffer header flags into MMAL buffer header flags.

Parameters

flags

MMAL buffer header flags.

Returns

OMX buffer header flags.

void mmalil_buffer_header_to_mmal	(	MMAL_BUFFER_HEADER_T *	mmal,
		OMX_BUFFERHEADERTYPE *	omx
	)

Convert an OMX buffer header into a MMAL buffer header.

Parameters

mmal	Pointer to the destination MMAL buffer header.
omx	Pointer to the source OMX buffer header.

void mmalil_buffer_header_to_omx	(	OMX_BUFFERHEADERTYPE *	omx,
		MMAL_BUFFER_HEADER_T *	mmal
	)

Convert a MMAL buffer header into an OMX buffer header. Note that only the fields which have a direct mapping between OMX and MMAL are converted.

Parameters

omx	Pointer to the destination OMX buffer header.
mmal	Pointer to the source MMAL buffer header.

MMAL_STATUS_T mmalil_error_to_mmal

(

OMX_ERRORTYPE

error

)

Convert OMX error codes into MMAL status codes.

Parameters

error

OMX error code.

Returns

MMAL status code.

OMX_ERRORTYPE mmalil_error_to_omx

(

MMAL_STATUS_T

status

)

Convert MMAL status codes into OMX error codes.

Parameters

status

MMAL status code.

Returns

OMX error code.

OMX_AUDIO_CODINGTYPE mmalil_format_to_omx_audio_param	(	OMX_FORMAT_PARAM_TYPE *	param,
		OMX_INDEXTYPE *	param_index,
		MMAL_ES_FORMAT_T *	format
	)

Convert a MMAL elementary stream format into a OMX_IndexParamAudio structure.

Parameters

param	OMX_IndexParamAudio structure to update.
param_index	returns the OMX_IndexParamAudio index corresponding to the format.
format	Source format structure.

Returns

The OMX aduio coding type if a match was found or OMX_AUDIO_CodingUnused otherwise.

OMX_INDEXTYPE mmalil_omx_audio_param_index	(	OMX_AUDIO_CODINGTYPE	coding,
		OMX_U32 *	size
	)

Get the OMX_IndexParamAudio index corresponding to a specified audio coding type.

Parameters

coding	Audio coding type.
size	Pointer used to return the size of the parameter.

Returns

OMX index or 0 if no match was found.

OMX_AUDIO_CODINGTYPE mmalil_omx_audio_param_index_to_coding

(

OMX_INDEXTYPE

index

)

Get the audio coding corresponding to a specified OMX_IndexParamAudio index.

Parameters

index

Audio coding type.

Returns

Audio coding type.

MMAL_FOURCC_T mmalil_omx_audio_param_to_format	(	MMAL_ES_FORMAT_T *	format,
		OMX_AUDIO_CODINGTYPE	coding,
		OMX_FORMAT_PARAM_TYPE *	param
	)

Convert an OMX_IndexParamAudio into a MMAL elementary stream format.

Parameters

format	Format structure to update.
coding	Audio coding type.
param	Source OMX_IndexParamAudio structure.

Returns

The MMAL encoding if a match was found or MMAL_ENCODING_UNKNOWN otherwise.

MMAL_STATUS_T mmalil_omx_default_channel_mapping	(	OMX_AUDIO_CHANNELTYPE *	channel_mapping,
		unsigned int	nchannels
	)

Setup a default channel mapping based on the number of channels

Parameters

channel_mapping	The output channel mapping
nchannels	Number of channels

Returns

MMAL_SUCCESS if we managed to produce a channel mapping