diff options
| -rw-r--r-- | ext/x264/gstx264enc.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/ext/x264/gstx264enc.c b/ext/x264/gstx264enc.c index e5466a05..f313b211 100644 --- a/ext/x264/gstx264enc.c +++ b/ext/x264/gstx264enc.c @@ -2366,6 +2366,58 @@ gst_x264_enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query) query); } +static void +gst_x264_enc_add_cc (GstBuffer * buffer, x264_picture_t * pic_in) +{ + GstVideoCaptionMeta *cc_meta; + gpointer iter = NULL; + + while ((cc_meta = + (GstVideoCaptionMeta *) gst_buffer_iterate_meta_filtered (buffer, + &iter, GST_VIDEO_CAPTION_META_API_TYPE))) { + guint i = pic_in->extra_sei.num_payloads; + + if (cc_meta->caption_type != GST_VIDEO_CAPTION_TYPE_CEA708_RAW) + continue; + + pic_in->extra_sei.num_payloads += 1; + + if (!pic_in->extra_sei.payloads) + pic_in->extra_sei.payloads = g_new0 (x264_sei_payload_t, 1); + else + pic_in->extra_sei.payloads = + g_renew (x264_sei_payload_t, pic_in->extra_sei.payloads, + pic_in->extra_sei.num_payloads); + + pic_in->extra_sei.sei_free = g_free; + + pic_in->extra_sei.payloads[i].payload_size = cc_meta->size + 11; + pic_in->extra_sei.payloads[i].payload = + g_malloc0 (pic_in->extra_sei.payloads[i].payload_size); + pic_in->extra_sei.payloads[i].payload_type = 4; /* Registered user data */ + memcpy (pic_in->extra_sei.payloads[i].payload + 10, cc_meta->data, + cc_meta->size); + pic_in->extra_sei.payloads[i].payload[0] = 181; /* 8-bits itu_t_t35_country_code */ + pic_in->extra_sei.payloads[i].payload[1] = 0; /* 16-bits itu_t_t35_provider_code */ + pic_in->extra_sei.payloads[i].payload[2] = 49; + pic_in->extra_sei.payloads[i].payload[3] = 'G'; /* 32-bits ATSC_user_identifier */ + pic_in->extra_sei.payloads[i].payload[4] = 'A'; + pic_in->extra_sei.payloads[i].payload[5] = '9'; + pic_in->extra_sei.payloads[i].payload[6] = '4'; + pic_in->extra_sei.payloads[i].payload[7] = 3; /* 8-bits ATSC1_data_user_data_type_code */ + /* 8-bits: + * 1 bit process_em_data_flag (0) + * 1 bit process_cc_data_flag (1) + * 1 bit additional_data_flag (0) + * 5-bits cc_count + */ + pic_in->extra_sei.payloads[i].payload[8] = + ((cc_meta->size / 3) & 0x1f) | 0x40; + pic_in->extra_sei.payloads[i].payload[9] = 0; /* 8 bits em_data, unused */ + pic_in->extra_sei.payloads[i].payload[cc_meta->size + 10] = 255; /* 8 marker bits */ + } +} + /* chain function * this function does the actual processing */ @@ -2423,6 +2475,8 @@ gst_x264_enc_handle_frame (GstVideoEncoder * video_enc, } } + gst_x264_enc_add_cc (frame->input_buffer, &pic_in); + ret = gst_x264_enc_encode_frame (encoder, &pic_in, frame, &i_nal, TRUE); /* input buffer is released later on */ |