image.c File Reference

This file contains the functions to handle the image_handler_t type. More...

Include dependency graph for image.c:

Data Structures
struct	decoder_owner

Functions
static struct decoder_owner *	dec_get_owner (decoder_t *p_dec)
static picture_t *	ImageRead (image_handler_t *, block_t *, const es_format_t *, video_format_t *)
static picture_t *	ImageReadUrl (image_handler_t *, const char *, video_format_t *)
static block_t *	ImageWrite (image_handler_t *p_image, picture_t *p_pic, const video_format_t *p_fmt_in, vlc_fourcc_t codec, const video_format_t *p_fmt_out)
	Write an image.
static int	ImageWriteUrl (image_handler_t *, picture_t *, const video_format_t *, vlc_fourcc_t, const video_format_t *, const char *)
static picture_t *	ImageConvert (image_handler_t *p_image, picture_t *p_pic, const video_format_t *p_fmt_in, video_format_t *p_fmt_out)
	Convert an image to a different format.
static decoder_t *	CreateDecoder (image_handler_t *, const es_format_t *)
static encoder_t *	CreateEncoder (vlc_object_t *, const video_format_t *, vlc_fourcc_t, const video_format_t *)
static filter_t *	CreateConverter (vlc_object_t *, const es_format_t *, struct vlc_video_context *, const video_format_t *)
static void	DeleteConverter (filter_t *)
vlc_fourcc_t	image_Type2Fourcc (const char *)
vlc_fourcc_t	image_Ext2Fourcc (const char *)
image_handler_t *	image_HandlerCreate (vlc_object_t *p_this)
	Create an image_handler_t instance.
void	image_HandlerDelete (image_handler_t *p_image)
	Delete the image_handler_t instance.
static void	ImageQueueVideo (decoder_t *p_dec, picture_t *p_pic)
	Read an image.
vlc_fourcc_t	image_Mime2Fourcc (const char *psz_mime)
static vlc_decoder_device *	image_get_device (decoder_t *p_dec)

Variables
struct {
vlc_fourcc_t   i_codec
const char   psz_ext [7]
}	ext_table []
	Misc functions.
struct {
vlc_fourcc_t   i_codec
const char *   psz_mime
}	mime_table []

Detailed Description

This file contains the functions to handle the image_handler_t type.

Function Documentation

CreateConverter()

filter_t * CreateConverter ( vlc_object_t * p_this, const es_format_t * p_fmt_in, struct vlc_video_context * p_vctx_in, const video_format_t * p_fmt_out )

static

References DeleteConverter(), es_format_Copy(), filter_t::fmt_in, filter_t::fmt_out, video_format_t::i_chroma, es_format_t::i_codec, video_format_t::i_x_offset, video_format_t::i_y_offset, msg_Dbg, filter_t::ops, filter_t::p_module, filter_t::vctx_in, es_format_t::video, video_format_Copy(), vlc_custom_create, and vlc_filter_LoadModule().

Referenced by ImageConvert(), ImageRead(), and ImageWrite().

CreateDecoder()

decoder_t * CreateDecoder ( image_handler_t * p_image, const es_format_t * fmt )

static

References decoder_t::cbs, decoder_owner::dec, decoder_Destroy(), decoder_Init(), es_format_Clean(), decoder_owner::fmt_in, decoder_t::fmt_in, es_format_t::i_codec, image_get_device(), ImageQueueVideo(), module_need_var, msg_Err, decoder_owner::p_image, decoder_t::p_module, image_handler_t::p_parent, and vlc_custom_create.

Referenced by ImageRead().

CreateEncoder()

encoder_t * CreateEncoder ( vlc_object_t * p_this, const video_format_t * fmt_in, vlc_fourcc_t codec, const video_format_t * fmt_out )

static

References es_format_InitFromVideo(), encoder_t::fmt_in, encoder_t::fmt_out, video_format_t::i_chroma, es_format_t::i_codec, video_format_t::i_frame_rate, video_format_t::i_frame_rate_base, video_format_t::i_height, video_format_t::i_visible_height, video_format_t::i_visible_width, video_format_t::i_width, module_need, msg_Err, encoder_t::ops, encoder_t::p_module, sout_EncoderCreate, es_format_t::video, and vlc_encoder_Destroy().

Referenced by ImageWrite().

dec_get_owner()

struct decoder_owner * dec_get_owner ( decoder_t * p_dec )

inlinestatic

References container_of, and decoder_owner::dec.

Referenced by image_HandlerDelete(), ImageQueueVideo(), and ImageRead().

DeleteConverter()

void DeleteConverter ( filter_t * p_filter )

static

References es_format_Clean(), filter_t::fmt_in, filter_t::fmt_out, vlc_filter_UnloadModule(), and vlc_object_delete.

Referenced by CreateConverter(), image_HandlerDelete(), ImageConvert(), ImageRead(), and ImageWrite().

image_Ext2Fourcc()

vlc_fourcc_t image_Ext2Fourcc

(

const char *

psz_name

)

References image_Type2Fourcc(), and psz_name.

Referenced by ImageReadUrl(), and ImageWriteUrl().

image_get_device()

vlc_decoder_device * image_get_device ( decoder_t * p_dec )

static

References VLC_UNUSED.

Referenced by CreateDecoder().

image_HandlerCreate()

image_handler_t * image_HandlerCreate

(

vlc_object_t *

p_this

)

Create an image_handler_t instance.

References ImageConvert(), ImageRead(), ImageReadUrl(), ImageWrite(), ImageWriteUrl(), image_handler_t::outfifo, decoder_owner::p_image, image_handler_t::p_parent, image_handler_t::pf_convert, image_handler_t::pf_read, image_handler_t::pf_read_url, image_handler_t::pf_write, image_handler_t::pf_write_url, and picture_fifo_New().

image_HandlerDelete()

void image_HandlerDelete

(

image_handler_t *

p_image

)

Delete the image_handler_t instance.

References dec_get_owner(), decoder_Destroy(), DeleteConverter(), es_format_Clean(), decoder_owner::fmt_in, image_handler_t::outfifo, image_handler_t::p_converter, image_handler_t::p_dec, image_handler_t::p_enc, decoder_owner::p_image, picture_fifo_Delete(), and vlc_encoder_Destroy().

Referenced by picture_Export(), spuregion_CreateFromPicture(), and subpicture_NewFromPicture().

image_Mime2Fourcc()

vlc_fourcc_t image_Mime2Fourcc

(

const char *

psz_mime

)

References mime_table, and psz_mime.

Referenced by ImageReadUrl().

image_Type2Fourcc()

vlc_fourcc_t image_Type2Fourcc

(

const char *

psz_type

)

References ARRAY_SIZE, ext_table, psz_ext, and strcasecmp().

Referenced by image_Ext2Fourcc(), and vout_GetSnapshot().

ImageConvert()

picture_t * ImageConvert ( image_handler_t * p_image, picture_t * p_pic, const video_format_t * p_fmt_in, video_format_t * p_fmt_out )

static

Convert an image to a different format.

References CreateConverter(), DeleteConverter(), es_format_Clean(), es_format_Init(), es_format_InitFromVideo(), vlc_filter_operations::filter_video, decoder_owner::fmt_in, filter_t::fmt_in, filter_t::fmt_out, video_format_t::i_chroma, video_format_t::i_height, video_format_t::i_sar_den, video_format_t::i_sar_num, video_format_t::i_visible_height, video_format_t::i_visible_width, video_format_t::i_width, filter_t::ops, image_handler_t::p_converter, decoder_owner::p_image, image_handler_t::p_parent, picture_GetVideoContext(), picture_HasChainedPics(), picture_Hold(), es_format_t::video, VIDEO_ES, and video_format_IsSameChroma().

Referenced by image_HandlerCreate().

ImageQueueVideo()

void ImageQueueVideo ( decoder_t * p_dec, picture_t * p_pic )

static

Read an image.

References dec_get_owner(), image_handler_t::outfifo, decoder_owner::p_image, picture_fifo_Lock(), picture_fifo_Push(), and picture_fifo_Unlock().

Referenced by CreateDecoder().

ImageRead()

picture_t * ImageRead ( image_handler_t * p_image, block_t * p_block, const es_format_t * p_es_in, video_format_t * p_fmt_out )

static

References block_Release, COLOR_PRIMARIES_UNDEF, COLOR_SPACE_UNDEF, CreateConverter(), CreateDecoder(), dec_get_owner(), decoder_Destroy(), DeleteConverter(), es_format_Clean(), es_format_Copy(), vlc_filter_operations::filter_video, decoder_owner::fmt_in, decoder_t::fmt_in, filter_t::fmt_in, decoder_t::fmt_out, filter_t::fmt_out, es_format_t::i_cat, video_format_t::i_chroma, es_format_t::i_codec, vlc_frame_t::i_dts, video_format_t::i_height, vlc_frame_t::i_pts, video_format_t::i_sar_den, video_format_t::i_sar_num, video_format_t::i_visible_height, video_format_t::i_visible_width, video_format_t::i_width, msg_Warn, filter_t::ops, image_handler_t::outfifo, image_handler_t::p_converter, image_handler_t::p_dec, decoder_owner::p_image, image_handler_t::p_parent, decoder_t::pf_decode, picture_fifo_Lock(), picture_fifo_Pop(), picture_fifo_Unlock(), picture_GetVideoContext(), picture_HasChainedPics(), picture_Release(), video_format_t::primaries, video_format_t::space, video_format_t::transfer, TRANSFER_FUNC_UNDEF, es_format_t::video, VIDEO_ES, video_format_Clean(), video_format_Copy(), video_format_IsSameChroma(), vlc_tick_now(), and VLCDEC_SUCCESS.

Referenced by image_HandlerCreate(), and ImageReadUrl().

ImageReadUrl()

picture_t * ImageReadUrl ( image_handler_t * p_image, const char * psz_url, video_format_t * p_fmt_out )

static

References es_format_Clean(), es_format_Init(), image_Ext2Fourcc(), image_Mime2Fourcc(), ImageRead(), msg_Dbg, decoder_owner::p_image, image_handler_t::p_parent, psz_mime, stream_MimeType(), VIDEO_ES, vlc_stream_Block(), vlc_stream_Delete(), vlc_stream_GetSize(), and vlc_stream_NewURL.

Referenced by image_HandlerCreate().

ImageWrite()

block_t * ImageWrite ( image_handler_t * p_image, picture_t * p_pic, const video_format_t * p_fmt_in, vlc_fourcc_t codec, const video_format_t * p_fmt_out )

static

Write an image.

References CreateConverter(), CreateEncoder(), DeleteConverter(), es_format_Clean(), es_format_Copy(), es_format_Init(), es_format_InitFromVideo(), vlc_filter_operations::filter_video, decoder_owner::fmt_in, encoder_t::fmt_in, filter_t::fmt_in, encoder_t::fmt_out, filter_t::fmt_out, video_format_t::i_chroma, es_format_t::i_codec, video_format_t::i_height, video_format_t::i_width, msg_Dbg, filter_t::ops, image_handler_t::p_converter, image_handler_t::p_enc, decoder_owner::p_image, image_handler_t::p_parent, picture_GetVideoContext(), picture_HasChainedPics(), picture_Hold(), picture_Release(), es_format_t::video, VIDEO_ES, video_format_IsSameChroma(), vlc_encoder_Destroy(), and vlc_encoder_EncodeVideo().

Referenced by image_HandlerCreate(), and ImageWriteUrl().

ImageWriteUrl()

int ImageWriteUrl ( image_handler_t * p_image, picture_t * p_pic, const video_format_t * p_fmt_in, vlc_fourcc_t codec, const video_format_t * p_fmt_out, const char * psz_url )

static

References block_Release, vlc_frame_t::i_buffer, image_Ext2Fourcc(), ImageWrite(), msg_Err, vlc_frame_t::p_buffer, decoder_owner::p_image, image_handler_t::p_parent, VLC_EGENERIC, vlc_fopen(), vlc_strerror_c(), and VLC_SUCCESS.

Referenced by image_HandlerCreate().

Variable Documentation

[struct]

const struct { ... } ext_table[]

Initial value:

=
{
    { ( ((uint32_t)'j') | ( ((uint32_t)'p') << 8 )   | ( ((uint32_t)'e') << 16 ) | ( ((uint32_t)'g') << 24 ) ) ,              "jpeg" },
    { ( ((uint32_t)'j') | ( ((uint32_t)'p') << 8 )   | ( ((uint32_t)'e') << 16 ) | ( ((uint32_t)'g') << 24 ) ) ,              "jpg"  },
    { ( ((uint32_t)'M') | ( ((uint32_t)'J') << 8 )   | ( ((uint32_t)'L') << 16 ) | ( ((uint32_t)'S') << 24 ) ) ,            "ljpg" },
    { ( ((uint32_t)'B') | ( ((uint32_t)'P') << 8 )   | ( ((uint32_t)'G') << 16 ) | ( ((uint32_t)0xFB) << 24 ) ) ,               "bpg" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'n') << 8 )   | ( ((uint32_t)'g') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "png" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'g') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "pgm" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'g') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)'y') << 24 ) ) ,            "pgmyuv" },
    {  ( ((uint32_t)'p') | ( ((uint32_t)'b') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) , "pbm" },
    {  ( ((uint32_t)'p') | ( ((uint32_t)'a') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) , "pam" },
    { ( ((uint32_t)'t') | ( ((uint32_t)'g') << 8 )   | ( ((uint32_t)'a') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,             "tga" },
    { ( ((uint32_t)'b') | ( ((uint32_t)'m') << 8 )   | ( ((uint32_t)'p') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "bmp" },
    { ( ((uint32_t)'f') | ( ((uint32_t)'a') << 8 )   | ( ((uint32_t)'r') << 16 ) | ( ((uint32_t)'b') << 24 ) ) ,          "farb" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'n') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "pnm" },
    {  ( ((uint32_t)'x') | ( ((uint32_t)'p') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) , "xpm" },
    {  ( ((uint32_t)'x') | ( ((uint32_t)'c') << 8 )   | ( ((uint32_t)'f') << 16 ) | ( ((uint32_t)' ') << 24 ) ) , "xcf" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'c') << 8 )   | ( ((uint32_t)'x') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "pcx" },
    { ( ((uint32_t)'g') | ( ((uint32_t)'i') << 8 )   | ( ((uint32_t)'f') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "gif" },
    { ( ((uint32_t)'q') | ( ((uint32_t)'o') << 8 )   | ( ((uint32_t)'i') << 16 ) | ( ((uint32_t)'f') << 24 ) ) ,               "qoi" },
    { ( ((uint32_t)'s') | ( ((uint32_t)'v') << 8 )   | ( ((uint32_t)'g') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "svg" },
    { ( ((uint32_t)'t') | ( ((uint32_t)'i') << 8 )   | ( ((uint32_t)'f') << 16 ) | ( ((uint32_t)'f') << 24 ) ) ,              "tif" },
    { ( ((uint32_t)'t') | ( ((uint32_t)'i') << 8 )   | ( ((uint32_t)'f') << 16 ) | ( ((uint32_t)'f') << 24 ) ) ,              "tiff" },
    { ( ((uint32_t)'W') | ( ((uint32_t)'E') << 8 )   | ( ((uint32_t)'B') << 16 ) | ( ((uint32_t)'P') << 24 ) ) ,              "webp" },
    {  ( ((uint32_t)'l') | ( ((uint32_t)'b') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) , "lbm" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'p') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "ppm" },
}

Misc functions.

Referenced by image_Type2Fourcc().

i_codec

vlc_fourcc_t i_codec

Referenced by es_format_Change(), es_format_Init(), libvlc_media_get_codec_description(), and picture_Export().

[struct]

const struct { ... } mime_table[]

Initial value:

=
{
    { ( ((uint32_t)'b') | ( ((uint32_t)'m') << 8 )   | ( ((uint32_t)'p') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/bmp" },
    { ( ((uint32_t)'b') | ( ((uint32_t)'m') << 8 )   | ( ((uint32_t)'p') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/x-bmp" },
    { ( ((uint32_t)'b') | ( ((uint32_t)'m') << 8 )   | ( ((uint32_t)'p') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/x-bitmap" },
    { ( ((uint32_t)'b') | ( ((uint32_t)'m') << 8 )   | ( ((uint32_t)'p') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/x-ms-bmp" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'n') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/x-portable-anymap" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'n') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/x-portable-bitmap" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'n') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/x-portable-graymap" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'n') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/x-portable-pixmap" },
    { ( ((uint32_t)'g') | ( ((uint32_t)'i') << 8 )   | ( ((uint32_t)'f') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/gif" },
    { ( ((uint32_t)'j') | ( ((uint32_t)'p') << 8 )   | ( ((uint32_t)'e') << 16 ) | ( ((uint32_t)'g') << 24 ) ) ,              "image/jpeg" },
    { ( ((uint32_t)'B') | ( ((uint32_t)'P') << 8 )   | ( ((uint32_t)'G') << 16 ) | ( ((uint32_t)0xFB) << 24 ) ) ,               "image/bpg" },
    { ( ((uint32_t)'f') | ( ((uint32_t)'a') << 8 )   | ( ((uint32_t)'r') << 16 ) | ( ((uint32_t)'b') << 24 ) ) ,          "image/farbfeld" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'c') << 8 )   | ( ((uint32_t)'x') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/pcx" },
    { ( ((uint32_t)'p') | ( ((uint32_t)'n') << 8 )   | ( ((uint32_t)'g') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/png" },
    { ( ((uint32_t)'q') | ( ((uint32_t)'o') << 8 )   | ( ((uint32_t)'i') << 16 ) | ( ((uint32_t)'f') << 24 ) ) ,               "image/qoi" },
    { ( ((uint32_t)'s') | ( ((uint32_t)'v') << 8 )   | ( ((uint32_t)'g') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,               "image/svg+xml" },
    { ( ((uint32_t)'t') | ( ((uint32_t)'i') << 8 )   | ( ((uint32_t)'f') << 16 ) | ( ((uint32_t)'f') << 24 ) ) ,              "image/tiff" },
    { ( ((uint32_t)'t') | ( ((uint32_t)'g') << 8 )   | ( ((uint32_t)'a') << 16 ) | ( ((uint32_t)' ') << 24 ) ) ,             "image/x-tga" },
    { ( ((uint32_t)'W') | ( ((uint32_t)'E') << 8 )   | ( ((uint32_t)'B') << 16 ) | ( ((uint32_t)'P') << 24 ) ) ,              "image/webp" },
    {  ( ((uint32_t)'x') | ( ((uint32_t)'p') << 8 )   | ( ((uint32_t)'m') << 16 ) | ( ((uint32_t)' ') << 24 ) ) , "image/x-xpixmap" },
    { 0, NULL }
}

Referenced by image_Mime2Fourcc().

psz_ext

const char psz_ext[7]

Referenced by ArtCacheName(), demux_IsPathExtension(), image_Type2Fourcc(), input_item_IsMaster(), input_item_slave_GetType(), rdh_get_slave_priority(), rdh_should_match_idx(), subtitles_Detect(), and vlc_mime_Ext2Mime().

psz_mime

const char* psz_mime

Referenced by httpd_FileNew(), httpd_StreamNew(), image_Mime2Fourcc(), ImageReadUrl(), and vlc_input_attachment_New().