}
}
-/* A53-4 Table 6.7 */
-#define A53_USER_DATA_ID_GA94 0x47413934
-#define A53_USER_DATA_ID_DTG1 0x44544731
-
-/* A53-4 Table 6.9 */
-#define A53_USER_DATA_TYPE_CODE_MPEG_CC_DATA 0x03
-#define A53_USER_DATA_TYPE_CODE_BAR_DATA 0x06
-
-/* CEA-708 Table 2 */
-#define CEA_708_PROCESS_CC_DATA_FLAG 0x40
-#define CEA_708_PROCESS_EM_DATA_FLAG 0x80
-
static void
parse_user_data_packet (GstMpegvParse * mpvparse, const guint8 * data,
guint size)
{
- gboolean a53_user_data_ga94 = FALSE;
- gboolean a53_user_data_dtg1 = FALSE;
- gboolean a53_user_data_mpeg_cc = FALSE;
- gboolean a53_process_708_cc_data = FALSE;
- gboolean process_708_em_data = FALSE;
-
- if (size < 2) {
- GST_DEBUG_OBJECT (mpvparse, "user data packet too short, ignoring");
- return;
- }
-
- /* A53 part 4 closed captions */
- if (size > 6) {
- guint32 user_data_id = GST_READ_UINT32_BE (data);
- a53_user_data_ga94 = user_data_id == A53_USER_DATA_ID_GA94;
- a53_user_data_dtg1 = user_data_id == A53_USER_DATA_ID_DTG1;
- a53_user_data_mpeg_cc = data[4] == A53_USER_DATA_TYPE_CODE_MPEG_CC_DATA;
- a53_process_708_cc_data = (data[5] & CEA_708_PROCESS_CC_DATA_FLAG) != 0;
- process_708_em_data = (data[5] & CEA_708_PROCESS_EM_DATA_FLAG) != 0;
-
- if (a53_user_data_dtg1) {
- GST_DEBUG_OBJECT (mpvparse,
- "ignoring closed captions as DTG1 is not supported");
- } else if (a53_user_data_ga94) {
- GST_DEBUG_OBJECT (mpvparse, "GA94 closed captions");
- if (!a53_user_data_mpeg_cc) {
- GST_DEBUG_OBJECT (mpvparse,
- "ignoring closed captions as A53_USER_DATA_TYPE_CODE_MPEG_CC_DATA is not set");
- }
- if (!a53_process_708_cc_data) {
- GST_DEBUG_OBJECT (mpvparse,
- "ignoring closed captions as CEA_708_PROCESS_CC_DATA_FLAG is not set");
- }
- if (!process_708_em_data) {
- GST_DEBUG_OBJECT (mpvparse,
- "CEA_708_PROCESS_EM_DATA_FLAG flag is not set");
- }
- /* ignore em data flag for now as it breaks one of the tests */
- process_708_em_data = /*process_708_em_data && */ (data[6] == 0xff);
- if (!process_708_em_data) {
- GST_DEBUG_OBJECT (mpvparse,
- "ignoring closed captions as em data does not equal 0xFF");
- }
- }
- }
- if (size > 6 && a53_user_data_ga94 && a53_user_data_mpeg_cc
- && a53_process_708_cc_data && process_708_em_data) {
- guint8 cc_count = data[5] & 0x1f;
- guint cc_size = cc_count * 3;
-
- data += 7;
- size -= 7;
-
- if (cc_size == 0 || cc_size > size) {
- GST_DEBUG_OBJECT (mpvparse, "ignoring closed captions, not enough data");
- return;
- }
-
- /* Shouldn't really happen so let's not go out of our way to handle it */
- if (mpvparse->closedcaptions_size > 0)
- GST_WARNING_OBJECT (mpvparse, "unused pending closed captions!");
+ GstByteReader br;
+ GstVideoParseUtilsField field = GST_VIDEO_PARSE_UTILS_FIELD_1;
+ gst_byte_reader_init (&br, data, size);
- g_assert (cc_size <= sizeof (mpvparse->closedcaptions));
- memcpy (mpvparse->closedcaptions, data, cc_size);
- mpvparse->closedcaptions_size = cc_size;
- mpvparse->closedcaptions_type = GST_VIDEO_CAPTION_TYPE_CEA708_RAW;
- GST_DEBUG_OBJECT (mpvparse, "CEA-708 closed captions, %u bytes", cc_size);
- return;
- }
+ if (mpvparse->picext.picture_structure ==
+ (guint8) GST_MPEG_VIDEO_PICTURE_STRUCTURE_BOTTOM_FIELD)
+ field = GST_VIDEO_PARSE_UTILS_FIELD_2;
+ gst_video_parse_user_data ((GstElement *) mpvparse, &mpvparse->user_data, &br,
+ field, ITU_T_T35_MANUFACTURER_US_ATSC);
- GST_MEMDUMP_OBJECT (mpvparse, "unhandled user data packet", data, size);
}
/* caller guarantees at least start code in @buf at @off ( - 4)*/
GstMpegVideoPictureHdr *pic_hdr = NULL;
GstMpegVideoPictureExt *pic_ext = NULL;
GstMpegVideoQuantMatrixExt *quant_ext = NULL;
+ GstBuffer *parse_buffer = NULL;
/* tag sending done late enough in hook to ensure pending events
* have already been sent */
meta->slice_offset = mpvparse->slice_offset;
}
- if (mpvparse->closedcaptions_size > 0) {
- GstBuffer *buf;
-
- if (frame->out_buffer) {
- buf = frame->out_buffer = gst_buffer_make_writable (frame->out_buffer);
- } else {
- buf = frame->buffer = gst_buffer_make_writable (frame->buffer);
- }
-
- gst_buffer_add_video_caption_meta (buf,
- mpvparse->closedcaptions_type, mpvparse->closedcaptions,
- mpvparse->closedcaptions_size);
+ if (frame->out_buffer) {
+ parse_buffer = frame->out_buffer =
+ gst_buffer_make_writable (frame->out_buffer);
+ } else {
+ parse_buffer = frame->buffer = gst_buffer_make_writable (frame->buffer);
+ }
- mpvparse->closedcaptions_type = GST_VIDEO_CAPTION_TYPE_UNKNOWN;
- mpvparse->closedcaptions_size = 0;
+ if (pic_ext && !pic_ext->progressive_frame) {
+ GST_BUFFER_FLAG_SET (parse_buffer, GST_VIDEO_BUFFER_FLAG_INTERLACED);
+ if (pic_ext->top_field_first)
+ GST_BUFFER_FLAG_SET (parse_buffer, GST_VIDEO_BUFFER_FLAG_TFF);
}
+ gst_video_push_user_data ((GstElement *) mpvparse, &mpvparse->user_data,
+ parse_buffer);
return GST_FLOW_OK;
}