mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
516 lines
19 KiB
C
516 lines
19 KiB
C
/* GStreamer
|
||
* Copyright (C) <2018> Edward Hervey <edward@centricular.com>
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Library General Public
|
||
* License as published by the Free Software Foundation; either
|
||
* version 2 of the License, or (at your option) any later version.
|
||
*
|
||
* This library is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
* Library General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Library General Public
|
||
* License along with this library; if not, write to the
|
||
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||
* Boston, MA 02110-1301, USA.
|
||
*/
|
||
|
||
#ifndef __GST_VIDEO_ANC_H__
|
||
#define __GST_VIDEO_ANC_H__
|
||
|
||
#include <gst/gst.h>
|
||
#include <gst/video/video-format.h>
|
||
#include <gst/video/video-info.h>
|
||
|
||
G_BEGIN_DECLS
|
||
|
||
typedef struct _GstVideoAncillary GstVideoAncillary;
|
||
|
||
/**
|
||
* GstVideoAncillary:
|
||
* @DID: The Data Identifier
|
||
* @SDID_block_number: The Secondary Data Identifier (if type 2) or the Data
|
||
* Block Number (if type 1)
|
||
* @data_count: The amount of data (in bytes) in @data (max 255 bytes)
|
||
* @data: (array length=data_count): The user data content of the Ancillary packet.
|
||
* Does not contain the ADF, DID, SDID nor CS.
|
||
*
|
||
* Video Ancillary data, according to SMPTE-291M specification.
|
||
*
|
||
* Note that the contents of the data are always stored as 8bit data (i.e. do not contain
|
||
* the parity check bits).
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
struct _GstVideoAncillary {
|
||
guint8 DID;
|
||
guint8 SDID_block_number;
|
||
guint8 data_count;
|
||
guint8 data[256];
|
||
|
||
/*< private >*/
|
||
/* Padding for future extension */
|
||
gpointer _gst_reserved[GST_PADDING];
|
||
};
|
||
|
||
/**
|
||
* GstVideoAncillaryDID:
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
typedef enum {
|
||
GST_VIDEO_ANCILLARY_DID_UNDEFINED = 0x00,
|
||
GST_VIDEO_ANCILLARY_DID_DELETION = 0x80,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_3G_AUDIO_DATA_FIRST = 0xa0,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_3G_AUDIO_DATA_LAST = 0xa7,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_HDTV_AUDIO_DATA_FIRST = 0xe0,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_HDTV_AUDIO_DATA_LAST = 0xe7,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_SDTV_AUDIO_DATA_1_FIRST = 0xec,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_SDTV_AUDIO_DATA_1_LAST = 0xef,
|
||
GST_VIDEO_ANCILLARY_DID_CAMERA_POSITION = 0xf0,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_ERROR_DETECTION = 0xf4,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_SDTV_AUDIO_DATA_2_FIRST = 0xf8,
|
||
GST_VIDEO_ANCILLARY_DID_HANC_SDTV_AUDIO_DATA_2_LAST = 0xff,
|
||
} GstVideoAncillaryDID;
|
||
|
||
/**
|
||
* GST_VIDEO_ANCILLARY_DID16:
|
||
* @anc: a #GstVideoAncillary
|
||
*
|
||
* Returns the #GstVideoAncillaryDID16 of the ancillary data.
|
||
*
|
||
* Since: 1.16
|
||
*
|
||
* Returns: a #GstVideoAncillaryDID16 identifier
|
||
*/
|
||
#define GST_VIDEO_ANCILLARY_DID16(anc) ((guint16)((anc)->DID) << 8 | (guint16)((anc)->SDID_block_number))
|
||
|
||
/**
|
||
* GstVideoAncillaryDID16:
|
||
* @GST_VIDEO_ANCILLARY_DID16_S334_EIA_708: CEA 708 Ancillary data according to SMPTE 334
|
||
* @GST_VIDEO_ANCILLARY_DID16_S334_EIA_608: CEA 608 Ancillary data according to SMPTE 334
|
||
* @GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR: AFD/Bar Ancillary data according to SMPTE 2016-3 (Since: 1.18)
|
||
*
|
||
* Some know types of Ancillary Data identifiers.
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
typedef enum {
|
||
GST_VIDEO_ANCILLARY_DID16_S334_EIA_708 = 0x6101,
|
||
GST_VIDEO_ANCILLARY_DID16_S334_EIA_608 = 0x6102,
|
||
GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR = 0x4105,
|
||
} GstVideoAncillaryDID16;
|
||
|
||
/**
|
||
* GstVideoAFDValue:
|
||
* @GST_VIDEO_AFD_UNAVAILABLE: Unavailable (see note 0 below).
|
||
* @GST_VIDEO_AFD_16_9_TOP_ALIGNED: For 4:3 coded frame, letterbox 16:9 image,
|
||
* at top of the coded frame. For 16:9 coded frame, full frame 16:9 image,
|
||
* the same as the coded frame.
|
||
* @GST_VIDEO_AFD_14_9_TOP_ALIGNED: For 4:3 coded frame, letterbox 14:9 image,
|
||
* at top of the coded frame. For 16:9 coded frame, pillarbox 14:9 image,
|
||
* horizontally centered in the coded frame.
|
||
* @GST_VIDEO_AFD_GREATER_THAN_16_9: For 4:3 coded frame, letterbox image with an aspect ratio
|
||
* greater than 16:9, vertically centered in the coded frame. For 16:9 coded frame,
|
||
* letterbox image with an aspect ratio greater than 16:9.
|
||
* @GST_VIDEO_AFD_4_3_FULL_16_9_FULL: For 4:3 coded frame, full frame 4:3 image,
|
||
* the same as the coded frame. For 16:9 coded frame, full frame 16:9 image, the same as
|
||
* the coded frame.
|
||
* @GST_VIDEO_AFD_4_3_FULL_4_3_PILLAR: For 4:3 coded frame, full frame 4:3 image, the same as
|
||
* the coded frame. For 16:9 coded frame, pillarbox 4:3 image, horizontally centered in the
|
||
* coded frame.
|
||
* @GST_VIDEO_AFD_16_9_LETTER_16_9_FULL: For 4:3 coded frame, letterbox 16:9 image, vertically centered in
|
||
* the coded frame with all image areas protected. For 16:9 coded frame, full frame 16:9 image,
|
||
* with all image areas protected.
|
||
* @GST_VIDEO_AFD_14_9_LETTER_14_9_PILLAR: For 4:3 coded frame, letterbox 14:9 image, vertically centered in
|
||
* the coded frame. For 16:9 coded frame, pillarbox 14:9 image, horizontally centered in the
|
||
* coded frame.
|
||
* @GST_VIDEO_AFD_4_3_FULL_14_9_CENTER: For 4:3 coded frame, full frame 4:3 image, with alternative 14:9
|
||
* center. For 16:9 coded frame, pillarbox 4:3 image, with alternative 14:9 center.
|
||
* @GST_VIDEO_AFD_16_9_LETTER_14_9_CENTER: For 4:3 coded frame, letterbox 16:9 image, with alternative 14:9
|
||
* center. For 16:9 coded frame, full frame 16:9 image, with alternative 14:9 center.
|
||
* @GST_VIDEO_AFD_16_9_LETTER_4_3_CENTER: For 4:3 coded frame, letterbox 16:9 image, with alternative 4:3
|
||
* center. For 16:9 coded frame, full frame 16:9 image, with alternative 4:3 center.
|
||
*
|
||
* Enumeration of the various values for Active Format Description (AFD)
|
||
*
|
||
* AFD should be included in video user data whenever the rectangular
|
||
* picture area containing useful information does not extend to the full height or width of the coded
|
||
* frame. AFD data may also be included in user data when the rectangular picture area containing
|
||
* useful information extends to the full height and width of the coded frame.
|
||
*
|
||
* For details, see Table 6.14 Active Format in:
|
||
*
|
||
* ATSC Digital Television Standard:
|
||
* Part 4 – MPEG-2 Video System Characteristics
|
||
*
|
||
* https://www.atsc.org/wp-content/uploads/2015/03/a_53-Part-4-2009.pdf
|
||
*
|
||
* and Active Format Description in Complete list of AFD codes
|
||
*
|
||
* https://en.wikipedia.org/wiki/Active_Format_Description#Complete_list_of_AFD_codes
|
||
*
|
||
* and SMPTE ST2016-1
|
||
*
|
||
* Notes:
|
||
*
|
||
* 1) AFD 0 is undefined for ATSC and SMPTE ST2016-1, indicating that AFD data is not available:
|
||
* If Bar Data is not present, AFD '0000' indicates that exact information
|
||
* is not available and the active image should be assumed to be the same as the coded frame. AFD '0000'.
|
||
* AFD '0000' accompanied by Bar Data signals that the active image’s aspect ratio is narrower than 16:9,
|
||
* but is not 4:3 or 14:9. As the exact aspect ratio cannot be conveyed by AFD alone, wherever possible,
|
||
* AFD ‘0000’ should be accompanied by Bar Data to define the exact vertical or horizontal extent
|
||
* of the active image.
|
||
* 2) AFD 0 is reserved for DVB/ETSI
|
||
* 3) values 1, 5, 6, 7, and 12 are reserved for both ATSC and DVB/ETSI
|
||
* 4) values 2 and 3 are not recommended for ATSC, but are valid for DVB/ETSI
|
||
*
|
||
* Since: 1.18
|
||
*/
|
||
typedef enum {
|
||
GST_VIDEO_AFD_UNAVAILABLE = 0,
|
||
GST_VIDEO_AFD_16_9_TOP_ALIGNED = 2,
|
||
GST_VIDEO_AFD_14_9_TOP_ALIGNED = 3,
|
||
GST_VIDEO_AFD_GREATER_THAN_16_9 = 4,
|
||
GST_VIDEO_AFD_4_3_FULL_16_9_FULL = 8,
|
||
GST_VIDEO_AFD_4_3_FULL_4_3_PILLAR = 9,
|
||
GST_VIDEO_AFD_16_9_LETTER_16_9_FULL = 10,
|
||
GST_VIDEO_AFD_14_9_LETTER_14_9_PILLAR = 11,
|
||
GST_VIDEO_AFD_4_3_FULL_14_9_CENTER = 13,
|
||
GST_VIDEO_AFD_16_9_LETTER_14_9_CENTER = 14,
|
||
GST_VIDEO_AFD_16_9_LETTER_4_3_CENTER = 15
|
||
} GstVideoAFDValue;
|
||
|
||
/**
|
||
* GstVideoAFDSpec:
|
||
* @GST_VIDEO_AFD_SPEC_DVB_ETSI: AFD value is from DVB/ETSI standard
|
||
* @GST_VIDEO_AFD_SPEC_ATSC_A53: AFD value is from ATSC A/53 standard
|
||
* @GST_VIDEO_AFD_SPEC_SMPT_ST2016_1 : AFD value is from SMPTE ST2016-1 standard
|
||
*
|
||
* Enumeration of the different standards that may apply to AFD data:
|
||
*
|
||
* 0) ETSI/DVB:
|
||
* https://www.etsi.org/deliver/etsi_ts/101100_101199/101154/02.01.01_60/ts_101154v020101p.pdf
|
||
*
|
||
* 1) ATSC A/53:
|
||
* https://www.atsc.org/wp-content/uploads/2015/03/a_53-Part-4-2009.pdf
|
||
*
|
||
* 2) SMPTE ST2016-1:
|
||
*
|
||
* Since 1.18
|
||
*/
|
||
typedef enum {
|
||
GST_VIDEO_AFD_SPEC_DVB_ETSI,
|
||
GST_VIDEO_AFD_SPEC_ATSC_A53,
|
||
GST_VIDEO_AFD_SPEC_SMPTE_ST2016_1
|
||
} GstVideoAFDSpec;
|
||
|
||
/**
|
||
* GstVideoAFDMeta:
|
||
* @meta: parent #GstMeta
|
||
* @field: 0 for progressive or field 1 and 1 for field 2
|
||
* @spec: #GstVideoAFDSpec that applies to @afd
|
||
* @afd: #GstVideoAFDValue AFD value
|
||
*
|
||
* Active Format Description (AFD)
|
||
*
|
||
* For details, see Table 6.14 Active Format in:
|
||
*
|
||
* ATSC Digital Television Standard:
|
||
* Part 4 – MPEG-2 Video System Characteristics
|
||
*
|
||
* https://www.atsc.org/wp-content/uploads/2015/03/a_53-Part-4-2009.pdf
|
||
*
|
||
* and Active Format Description in Complete list of AFD codes
|
||
*
|
||
* https://en.wikipedia.org/wiki/Active_Format_Description#Complete_list_of_AFD_codes
|
||
*
|
||
* and SMPTE ST2016-1
|
||
*
|
||
* Since: 1.18
|
||
*/
|
||
typedef struct {
|
||
GstMeta meta;
|
||
|
||
guint8 field;
|
||
GstVideoAFDSpec spec;
|
||
GstVideoAFDValue afd;
|
||
} GstVideoAFDMeta;
|
||
|
||
GST_VIDEO_API GType gst_video_afd_meta_api_get_type (void);
|
||
#define GST_VIDEO_AFD_META_API_TYPE (gst_video_afd_meta_api_get_type())
|
||
|
||
GST_VIDEO_API const GstMetaInfo *gst_video_afd_meta_get_info (void);
|
||
#define GST_VIDEO_AFD_META_INFO (gst_video_afd_meta_get_info())
|
||
|
||
/**
|
||
* gst_buffer_get_video_afd_meta:
|
||
* @b: A #GstBuffer
|
||
* @field: 0 for progressive or field 1 and 1 for field 2
|
||
* @spec: #GstVideoAFDSpec that applies to @afd
|
||
* @afd: #GstVideoAFDValue AFD value
|
||
*
|
||
* Gets the #GstVideoAFDMeta that might be present on @b.
|
||
* Note: there may be two #GstVideoAFDMeta structs for interlaced video.
|
||
*
|
||
* Since: 1.18
|
||
*
|
||
* Returns: The first #GstVideoAFDMeta present on @b, or %NULL if
|
||
* no #GstVideoAFDMeta are present
|
||
*/
|
||
#define gst_buffer_get_video_afd_meta(b) \
|
||
((GstVideoAFDMeta*)gst_buffer_get_meta((b)))
|
||
|
||
GST_VIDEO_API
|
||
GstVideoAFDMeta *gst_buffer_add_video_afd_meta (GstBuffer * buffer, guint8 field,
|
||
GstVideoAFDSpec spec,
|
||
GstVideoAFDValue afd);
|
||
/**
|
||
* GstVideoBarMeta:
|
||
* @meta: parent #GstMeta
|
||
* @field: 0 for progressive or field 1 and 1 for field 2
|
||
* @is_letterbox: if true then bar data specifies letterbox, otherwise pillarbox
|
||
* @bar_data1: If @is_letterbox is true, then the value specifies the
|
||
* last line of a horizontal letterbox bar area at top of reconstructed frame.
|
||
* Otherwise, it specifies the last horizontal luminance sample of a vertical pillarbox
|
||
* bar area at the left side of the reconstructed frame
|
||
* @bar_data2: If @is_letterbox is true, then the value specifies the
|
||
* first line of a horizontal letterbox bar area at bottom of reconstructed frame.
|
||
* Otherwise, it specifies the first horizontal
|
||
* luminance sample of a vertical pillarbox bar area at the right side of the reconstructed frame.
|
||
*
|
||
* Bar data should be included in video user data
|
||
* whenever the rectangular picture area containing useful information
|
||
* does not extend to the full height or width of the coded frame
|
||
* and AFD alone is insufficient to describe the extent of the image.
|
||
*
|
||
* Note: either vertical or horizontal bars are specified, but not both.
|
||
*
|
||
* For more details, see:
|
||
*
|
||
* https://www.atsc.org/wp-content/uploads/2015/03/a_53-Part-4-2009.pdf
|
||
*
|
||
* and SMPTE ST2016-1
|
||
*
|
||
* Since: 1.18
|
||
*/
|
||
typedef struct {
|
||
GstMeta meta;
|
||
|
||
guint8 field;
|
||
gboolean is_letterbox;
|
||
guint bar_data1;
|
||
guint bar_data2;
|
||
} GstVideoBarMeta;
|
||
|
||
GST_VIDEO_API GType gst_video_bar_meta_api_get_type (void);
|
||
#define GST_VIDEO_BAR_META_API_TYPE (gst_video_bar_meta_api_get_type())
|
||
|
||
GST_VIDEO_API const GstMetaInfo *gst_video_bar_meta_get_info (void);
|
||
#define GST_VIDEO_BAR_META_INFO (gst_video_bar_meta_get_info())
|
||
|
||
#define gst_buffer_get_video_bar_meta(b) \
|
||
((GstVideoBarMeta*)gst_buffer_get_meta((b)))
|
||
|
||
/**
|
||
* gst_buffer_get_video_bar_meta:
|
||
* @b: A #GstBuffer
|
||
* @field: 0 for progressive or field 1 and 1 for field 2
|
||
* @is_letterbox: if true then bar data specifies letterbox, otherwise pillarbox
|
||
* @bar_data1: If @is_letterbox is true, then the value specifies the
|
||
* last line of a horizontal letterbox bar area at top of reconstructed frame.
|
||
* Otherwise, it specifies the last horizontal luminance sample of a vertical pillarbox
|
||
* bar area at the left side of the reconstructed frame
|
||
* @bar_data2: If @is_letterbox is true, then the value specifies the
|
||
* first line of a horizontal letterbox bar area at bottom of reconstructed frame.
|
||
* Otherwise, it specifies the first horizontal
|
||
* luminance sample of a vertical pillarbox bar area at the right side of the reconstructed frame.
|
||
* Gets the #GstVideoBarMeta that might be present on @b.
|
||
*
|
||
* Since: 1.18
|
||
*
|
||
* Returns: The first #GstVideoBarMeta present on @b, or %NULL if
|
||
* no #GstVideoBarMeta are present
|
||
*/
|
||
GST_VIDEO_API
|
||
GstVideoBarMeta *gst_buffer_add_video_bar_meta (GstBuffer * buffer, guint8 field,
|
||
gboolean is_letterbox, guint bar_data1, guint bar_data2);
|
||
|
||
/* Closed Caption support */
|
||
/**
|
||
* GstVideoCaptionType:
|
||
* @GST_VIDEO_CAPTION_TYPE_UNKNOWN: Unknown type of CC
|
||
* @GST_VIDEO_CAPTION_TYPE_CEA608_RAW: CEA-608 as byte pairs. Note that
|
||
* this format is not recommended since is does not specify to
|
||
* which field the caption comes from and therefore assumes
|
||
* it comes from the first field (and that there is no information
|
||
* on the second field). Use @GST_VIDEO_CAPTION_TYPE_CEA708_RAW
|
||
* if you wish to store CEA-608 from two fields and prefix each byte pair
|
||
* with 0xFC for the first field and 0xFD for the second field.
|
||
* @GST_VIDEO_CAPTION_TYPE_CEA608_S334_1A: CEA-608 as byte triplets as defined
|
||
* in SMPTE S334-1 Annex A. The second and third byte of the byte triplet
|
||
* is the raw CEA608 data, the first byte is a bitfield: The top/7th bit is
|
||
* 0 for the second field, 1 for the first field, bit 6 and 5 are 0 and
|
||
* bits 4 to 0 are a 5 bit unsigned integer that represents the line
|
||
* offset relative to the base-line of the original image format (line 9
|
||
* for 525-line field 1, line 272 for 525-line field 2, line 5 for
|
||
* 625-line field 1 and line 318 for 625-line field 2).
|
||
* @GST_VIDEO_CAPTION_TYPE_CEA708_RAW: CEA-708 as cc_data byte triplets. They
|
||
* can also contain 608-in-708 and the first byte of each triplet has to
|
||
* be inspected for detecting the type.
|
||
* @GST_VIDEO_CAPTION_TYPE_CEA708_CDP: CEA-708 (and optionally CEA-608) in
|
||
* a CDP (Caption Distribution Packet) defined by SMPTE S-334-2.
|
||
* Contains the whole CDP (starting with 0x9669).
|
||
*
|
||
* The various known types of Closed Caption (CC).
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
typedef enum {
|
||
GST_VIDEO_CAPTION_TYPE_UNKNOWN = 0,
|
||
GST_VIDEO_CAPTION_TYPE_CEA608_RAW = 1,
|
||
GST_VIDEO_CAPTION_TYPE_CEA608_S334_1A = 2,
|
||
GST_VIDEO_CAPTION_TYPE_CEA708_RAW = 3,
|
||
GST_VIDEO_CAPTION_TYPE_CEA708_CDP = 4
|
||
} GstVideoCaptionType;
|
||
|
||
GST_VIDEO_API
|
||
GstVideoCaptionType
|
||
gst_video_caption_type_from_caps (const GstCaps *caps);
|
||
|
||
GST_VIDEO_API
|
||
GstCaps *
|
||
gst_video_caption_type_to_caps (GstVideoCaptionType type);
|
||
|
||
/**
|
||
* GstVideoCaptionMeta:
|
||
* @meta: parent #GstMeta
|
||
* @caption_type: The type of Closed Caption contained in the meta.
|
||
* @data: (array length=size): The Closed Caption data.
|
||
* @size: The size in bytes of @data
|
||
*
|
||
* Extra buffer metadata providing Closed Caption.
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
typedef struct {
|
||
GstMeta meta;
|
||
|
||
GstVideoCaptionType caption_type;
|
||
guint8 *data;
|
||
gsize size;
|
||
} GstVideoCaptionMeta;
|
||
|
||
GST_VIDEO_API
|
||
GType gst_video_caption_meta_api_get_type (void);
|
||
#define GST_VIDEO_CAPTION_META_API_TYPE (gst_video_caption_meta_api_get_type())
|
||
|
||
GST_VIDEO_API
|
||
const GstMetaInfo *gst_video_caption_meta_get_info (void);
|
||
#define GST_VIDEO_CAPTION_META_INFO (gst_video_caption_meta_get_info())
|
||
|
||
/**
|
||
* gst_buffer_get_video_caption_meta:
|
||
* @b: A #GstBuffer
|
||
*
|
||
* Gets the #GstVideoCaptionMeta that might be present on @b.
|
||
*
|
||
* Since: 1.16
|
||
*
|
||
* Returns: The first #GstVideoCaptionMeta present on @b, or %NULL if
|
||
* no #GstVideoCaptionMeta are present
|
||
*/
|
||
#define gst_buffer_get_video_caption_meta(b) \
|
||
((GstVideoCaptionMeta*)gst_buffer_get_meta((b),GST_VIDEO_CAPTION_META_API_TYPE))
|
||
|
||
GST_VIDEO_API
|
||
GstVideoCaptionMeta *gst_buffer_add_video_caption_meta (GstBuffer * buffer,
|
||
GstVideoCaptionType caption_type,
|
||
const guint8 *data,
|
||
gsize size);
|
||
|
||
/**
|
||
* GstVideoVBIParser:
|
||
*
|
||
* A parser for detecting and extracting @GstVideoAncillary data from
|
||
* Vertical Blanking Interval lines of component signals.
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
|
||
typedef struct _GstVideoVBIParser GstVideoVBIParser;
|
||
|
||
GST_VIDEO_API
|
||
GType gst_video_vbi_parser_get_type (void);
|
||
|
||
/**
|
||
* GstVideoVBIParserResult:
|
||
* @GST_VIDEO_VBI_PARSER_RESULT_DONE: No line were provided, or no more Ancillary data was found.
|
||
* @GST_VIDEO_VBI_PARSER_RESULT_OK: A #GstVideoAncillary was found.
|
||
* @GST_VIDEO_VBI_PARSER_RESULT_ERROR: An error occured
|
||
*
|
||
* Return values for #GstVideoVBIParser
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
typedef enum {
|
||
GST_VIDEO_VBI_PARSER_RESULT_DONE = 0,
|
||
GST_VIDEO_VBI_PARSER_RESULT_OK = 1,
|
||
GST_VIDEO_VBI_PARSER_RESULT_ERROR = 2
|
||
} GstVideoVBIParserResult;
|
||
|
||
GST_VIDEO_API
|
||
GstVideoVBIParserResult gst_video_vbi_parser_get_ancillary(GstVideoVBIParser *parser,
|
||
GstVideoAncillary *anc);
|
||
|
||
GST_VIDEO_API
|
||
GstVideoVBIParser *gst_video_vbi_parser_new (GstVideoFormat format, guint32 pixel_width);
|
||
|
||
GST_VIDEO_API
|
||
GstVideoVBIParser *gst_video_vbi_parser_copy (const GstVideoVBIParser *parser);
|
||
|
||
GST_VIDEO_API
|
||
void gst_video_vbi_parser_free (GstVideoVBIParser *parser);
|
||
|
||
GST_VIDEO_API
|
||
void gst_video_vbi_parser_add_line (GstVideoVBIParser *parser, const guint8 *data);
|
||
|
||
/**
|
||
* GstVideoVBIEncoder:
|
||
*
|
||
* An encoder for writing ancillary data to the
|
||
* Vertical Blanking Interval lines of component signals.
|
||
*
|
||
* Since: 1.16
|
||
*/
|
||
|
||
typedef struct _GstVideoVBIEncoder GstVideoVBIEncoder;
|
||
|
||
GST_VIDEO_API
|
||
GType gst_video_vbi_encoder_get_type (void);
|
||
|
||
GST_VIDEO_API
|
||
GstVideoVBIEncoder *gst_video_vbi_encoder_new (GstVideoFormat format, guint32 pixel_width);
|
||
|
||
GST_VIDEO_API
|
||
GstVideoVBIEncoder *gst_video_vbi_encoder_copy (const GstVideoVBIEncoder *encoder);
|
||
|
||
GST_VIDEO_API
|
||
void gst_video_vbi_encoder_free (GstVideoVBIEncoder *encoder);
|
||
|
||
GST_VIDEO_API
|
||
gboolean gst_video_vbi_encoder_add_ancillary (GstVideoVBIEncoder *encoder,
|
||
gboolean composite,
|
||
guint8 DID,
|
||
guint8 SDID_block_number,
|
||
const guint8 *data,
|
||
guint data_count);
|
||
|
||
GST_VIDEO_API
|
||
void gst_video_vbi_encoder_write_line (GstVideoVBIEncoder *encoder, guint8 *data);
|
||
|
||
G_END_DECLS
|
||
|
||
#endif /* __GST_VIDEO_ANC_H__ */
|