return caption_caps;
}
-
-/* Active Format Description (AFD) Meta implementation *****************************/
-
-GType
-gst_video_afd_meta_api_get_type (void)
-{
- static volatile GType type;
-
- if (g_once_init_enter (&type)) {
- static const gchar *tags[] = { NULL };
- GType _type = gst_meta_api_type_register ("GstVideoAfdMetaAPI", tags);
- g_once_init_leave (&type, _type);
- }
- return type;
-}
-
-
-static gboolean
-gst_video_afd_meta_init (GstMeta * meta, gpointer params, GstBuffer * buffer)
-{
- GstVideoAfdMeta *emeta = (GstVideoAfdMeta *) meta;
-
- emeta->afd = GST_VIDEO_AFD_ATSC_UNAVAILABLE;
-
- return TRUE;
-}
-
-
-const GstMetaInfo *
-gst_video_afd_meta_get_info (void)
-{
- static const GstMetaInfo *meta_info = NULL;
-
- if (g_once_init_enter ((GstMetaInfo **) & meta_info)) {
- const GstMetaInfo *mi = gst_meta_register (GST_VIDEO_AFD_META_API_TYPE,
- "GstVideoAfdMeta",
- sizeof (GstVideoAfdMeta),
- gst_video_afd_meta_init,
- NULL,
- NULL);
- g_once_init_leave ((GstMetaInfo **) & meta_info, (GstMetaInfo *) mi);
- }
- return meta_info;
-}
-
-/**
- * gst_buffer_add_video_afd_meta:
- * @buffer: a #GstBuffer
- * @afd: #GstVideoAfd struct
- *
- * Attaches #GstVideoAfdMeta metadata to @buffer with the given
- * parameters.
- *
- * Returns: (transfer none): the #GstVideoAfdMeta on @buffer.
- *
- * Since: 1.16
- */
-GstVideoAfdMeta *
-gst_buffer_add_video_afd_meta (GstBuffer * buffer, GstVideoAfd afd)
-{
- GstVideoAfdMeta *meta;
- g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
-
- meta = (GstVideoAfdMeta *) gst_buffer_add_meta (buffer,
- GST_VIDEO_AFD_META_INFO, NULL);
- g_assert (meta != NULL);
-
- meta->afd = afd;
-
- return meta;
-}
-
-/* Bar Meta implementation *******************************************/
-
-GType
-gst_video_bar_meta_api_get_type (void)
-{
- static volatile GType type;
-
- if (g_once_init_enter (&type)) {
- static const gchar *tags[] = { NULL };
- GType _type = gst_meta_api_type_register ("GstVideoBarMetaAPI", tags);
- g_once_init_leave (&type, _type);
- }
- return type;
-}
-
-const GstMetaInfo *
-gst_video_bar_meta_get_info (void)
-{
- static const GstMetaInfo *meta_info = NULL;
-
- if (g_once_init_enter ((GstMetaInfo **) & meta_info)) {
- const GstMetaInfo *mi = gst_meta_register (GST_VIDEO_BAR_META_API_TYPE,
- "GstVideoBarMeta",
- sizeof (GstVideoBarMeta),
- NULL,
- NULL,
- NULL);
- g_once_init_leave ((GstMetaInfo **) & meta_info, (GstMetaInfo *) mi);
- }
- return meta_info;
-}
-
-
-
-/**
- * gst_buffer_add_video_bar_meta:
- * @buffer: a #GstBuffer
- * @bar_data: #GstVideoBarData structure
- *
- * Attaches #GstVideoBarMeta metadata to @buffer with the given
- * parameters.
- *
- * Returns: (transfer none): the #GstVideoBarMeta on @buffer.
- *
- * See Table 6.11 Bar Data Syntax
- *
- * https://www.atsc.org/wp-content/uploads/2015/03/a_53-Part-4-2009.pdf
- *
- * Since: 1.16
- */
-GstVideoBarMeta *
-gst_buffer_add_video_bar_meta (GstBuffer * buffer, GstVideoBarData * bar_data)
-{
- GstVideoBarMeta *meta;
-
- g_return_val_if_fail (bar_data != NULL, NULL);
- g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
-
- meta = (GstVideoBarMeta *) gst_buffer_add_meta (buffer,
- GST_VIDEO_BAR_META_INFO, NULL);
- g_assert (meta != NULL);
-
- meta->bar_data = *bar_data;
- return meta;
-}
GST_VIDEO_ANCILLARY_DID16_S334_EIA_608 = 0x6102,
} GstVideoAncillaryDID16;
-/* Active Format Description (AFD) support
- *
- * A/53 ATSC Digital Television Standard
- *
- * Active Format Description (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 more details, please see
- *
- * https://www.atsc.org/wp-content/uploads/2015/03/a_53-Part-4-2009.pdf
- *
- */
-
-/**
- * GstVideoAfd:
- *
- *
- * The various active format descriptions
- *
- *
- * 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
- *
- * Note:
- *
- * 0) value 0 is undefined for ATSC, indicating that AFD data is not available,
- * while 0 is reserved for DVB/ETSI
- * 1) values 1, 5, 6, 7, and 12 are reserved for both ATSC and DVB/ETSI
- * 2) values 2 and 3 are not recommended for ATSC, but are valid for DVB/ETSI
- *
- *
- * Since: 1.16
- */
-typedef enum
-{
- GST_VIDEO_AFD_ATSC_UNAVAILABLE = 0,
- GST_VIDEO_AFD_ETSI_16_9_ACTIVE_PICTURE = 2,
- GST_VIDEO_AFD_ETSI_14_9_ACTIVE_PICTURE = 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
-} GstVideoAfd;
-
-
-/**
- * GstVideoAfdMeta:
- * @meta: parent #GstMeta
- * @afd: #GstVideoAfd
- *
- * Metadata providing active format description (AFD)
- *
- * Since: 1.16
- */
-typedef struct
-{
- GstMeta meta;
-
- GstVideoAfd 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
- *
- * Gets the #GstVideoAfdMeta that might be present on @b.
- *
- * Since: 1.16
- *
- * 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,
- GstVideoAfd afd);
-
-
-
-/* Bar data support
- *
- * A/53 ATSC Digital Television Standard
- *
- * 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.
- *
- * For more details, see:
- *
- * https://www.atsc.org/wp-content/uploads/2015/03/a_53-Part-4-2009.pdf
- *
- *
- */
-
-/**
- * GstVideoBarData
- * @top_bar_flag: flag indicating presence of top bar field
- * @bottom_bar_flag: flag indicating presence of bottom bar field
- * @left_bar_flag: flag indicating presence of left bar field
- * @right_bar_flag: flag indicating presence of right bar field
- * @top_bar: last line of a horizontal letterbox bar area at top of
- * reconstructed frame
- * @bottom_bar: first line of a horizontal letterbox bar area at
- * bottom of reconstructed frame
- * @left_bar: last horizontal luminance sample of a vertical pillarbox
- * bar area at the left side of the reconstructed frame
- * @right_bar: first horizontal luminance sample of a vertical pillarbox
- * bar area at the right side of the reconstructed frame
- *
- * Since: 1.16
- *
- *
- */
-typedef struct
-{
- gboolean top_bar_flag;
- gboolean bottom_bar_flag;
- gboolean left_bar_flag;
- gboolean right_bar_flag;
-
- guint16 top_bar;
- guint16 bottom_bar;
- guint16 left_bar;
- guint16 right_bar;
-
-} GstVideoBarData;
-
-
-/**
- * GstVideoBarMeta:
- * @meta: parent #GstMeta
- * @bar_data: #GstVideoBarData
- *
- * Metadata providing bar data
- *
- * Since: 1.16
- */
-typedef struct
-{
- GstMeta meta;
-
- GstVideoBarData bar_data;
-} 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())
-
-/**
- * gst_buffer_get_video_bar_meta:
- * @b: A #GstBuffer
- *
- * Gets the #GstVideoBarMeta that might be present on @b.
- *
- * Since: 1.16
- *
- * Returns: The first #GstVideoBarMeta present on @b, or %NULL if
- * no #GstVideoBarMeta are present
- */
-#define gst_buffer_get_video_bar_meta(b) \
- ((GstVideoBarMeta*)gst_buffer_get_meta((b)))
-
-GST_VIDEO_API
- GstVideoBarMeta * gst_buffer_add_video_bar_meta (GstBuffer * buffer,
- GstVideoBarData * bar_data);
-
-
-
/* Closed Caption support */
/**
* GstVideoCaptionType:
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