avcodec/vaapi_encode_h26x: passthrough A53 CC data as H264/HEVC SEI

Signed-off-by: Aman Karmani <aman@tmm1.net>

configure

@@ -3181,7 +3181,7 @@ h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
 h264_qsv_encoder_select="atsc_a53 qsvenc"
 h264_rkmpp_decoder_deps="rkmpp"
 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
-h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
+h264_vaapi_encoder_select="atsc_a53 cbs_h264 vaapi_encode"
 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
@@ -3202,7 +3202,7 @@ hevc_qsv_encoder_select="hevcparse qsvenc"
 hevc_rkmpp_decoder_deps="rkmpp"
 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
-hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
+hevc_vaapi_encoder_select="atsc_a53 cbs_h265 vaapi_encode"
 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

libavcodec/vaapi_encode_h264.c

@@ -26,6 +26,7 @@
 #include "libavutil/internal.h"
 #include "libavutil/opt.h"
 
+#include "atsc_a53.h"
 #include "avcodec.h"
 #include "cbs.h"
 #include "cbs_h264.h"
@@ -41,6 +42,7 @@ enum {
     SEI_TIMING         = 0x01,
     SEI_IDENTIFIER     = 0x02,
     SEI_RECOVERY_POINT = 0x04,
+    SEI_A53_CC         = 0x08,
 };
 
 // Random (version 4) ISO 11578 UUID.
@@ -99,6 +101,8 @@ typedef struct VAAPIEncodeH264Context {
     H264RawSEIRecoveryPoint        sei_recovery_point;
     SEIRawUserDataUnregistered     sei_identifier;
     char                          *sei_identifier_string;
+    SEIRawUserDataRegistered       sei_a53cc;
+    void                          *sei_a53cc_data;
 
     int aud_needed;
     int sei_needed;
@@ -249,6 +253,13 @@ static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
             if (err < 0)
                 goto fail;
         }
+        if (priv->sei_needed & SEI_A53_CC) {
+            err = ff_cbs_sei_add_message(priv->cbc, au, 1,
+                                         SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35,
+                                         &priv->sei_a53cc, NULL);
+            if (err < 0)
+                goto fail;
+        }
 
         priv->sei_needed = 0;
 
@@ -675,6 +686,22 @@ static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
         priv->sei_needed |= SEI_RECOVERY_POINT;
     }
 
+    if (priv->sei & SEI_A53_CC) {
+        int err;
+        size_t sei_a53cc_len;
+        av_freep(&priv->sei_a53cc_data);
+        err = ff_alloc_a53_sei(pic->input_image, 0, &priv->sei_a53cc_data, &sei_a53cc_len);
+        if (err < 0)
+            return err;
+        if (priv->sei_a53cc_data != NULL) {
+            priv->sei_a53cc.itu_t_t35_country_code = 181;
+            priv->sei_a53cc.data = (uint8_t *)priv->sei_a53cc_data + 1;
+            priv->sei_a53cc.data_length = sei_a53cc_len - 1;
+
+            priv->sei_needed |= SEI_A53_CC;
+        }
+    }
+
     vpic->CurrPic = (VAPictureH264) {
         .picture_id          = pic->recon_surface,
         .frame_idx           = hpic->frame_num,
@@ -1220,6 +1247,7 @@ static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
     ff_cbs_fragment_free(&priv->current_access_unit);
     ff_cbs_close(&priv->cbc);
     av_freep(&priv->sei_identifier_string);
+    av_freep(&priv->sei_a53cc_data);
 
     return ff_vaapi_encode_close(avctx);
 }
@@ -1246,7 +1274,7 @@ static const AVOption vaapi_encode_h264_options[] = {
 
     { "sei", "Set SEI to include",
       OFFSET(sei), AV_OPT_TYPE_FLAGS,
-      { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },
+      { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT | SEI_A53_CC },
       0, INT_MAX, FLAGS, "sei" },
     { "identifier", "Include encoder version identifier",
       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
@@ -1257,6 +1285,9 @@ static const AVOption vaapi_encode_h264_options[] = {
     { "recovery_point", "Include recovery points where appropriate",
       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
       INT_MIN, INT_MAX, FLAGS, "sei" },
+    { "a53_cc", "Include A/53 caption data",
+      0, AV_OPT_TYPE_CONST, { .i64 = SEI_A53_CC },
+      INT_MIN, INT_MAX, FLAGS, "sei" },
 
     { "profile", "Set profile (profile_idc and constraint_set*_flag)",
       OFFSET(profile), AV_OPT_TYPE_INT,

libavcodec/vaapi_encode_h265.c

@@ -27,6 +27,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/mastering_display_metadata.h"
 
+#include "atsc_a53.h"
 #include "avcodec.h"
 #include "cbs.h"
 #include "cbs_h265.h"
@@ -41,6 +42,7 @@
 enum {
     SEI_MASTERING_DISPLAY       = 0x08,
     SEI_CONTENT_LIGHT_LEVEL     = 0x10,
+    SEI_A53_CC                  = 0x20,
 };
 
 typedef struct VAAPIEncodeH265Picture {
@@ -85,6 +87,8 @@ typedef struct VAAPIEncodeH265Context {
 
     SEIRawMasteringDisplayColourVolume sei_mastering_display;
     SEIRawContentLightLevelInfo        sei_content_light_level;
+    SEIRawUserDataRegistered           sei_a53cc;
+    void                              *sei_a53cc_data;
 
     CodedBitstreamContext *cbc;
     CodedBitstreamFragment current_access_unit;
@@ -227,6 +231,13 @@ static int vaapi_encode_h265_write_extra_header(AVCodecContext *avctx,
             if (err < 0)
                 goto fail;
         }
+        if (priv->sei_needed & SEI_A53_CC) {
+            err = ff_cbs_sei_add_message(priv->cbc, au, 1,
+                                         SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35,
+                                         &priv->sei_a53cc, NULL);
+            if (err < 0)
+                goto fail;
+        }
 
         priv->sei_needed = 0;
 
@@ -882,6 +893,22 @@ static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,
         }
     }
 
+    if (priv->sei & SEI_A53_CC) {
+        int err;
+        size_t sei_a53cc_len;
+        av_freep(&priv->sei_a53cc_data);
+        err = ff_alloc_a53_sei(pic->input_image, 0, &priv->sei_a53cc_data, &sei_a53cc_len);
+        if (err < 0)
+            return err;
+        if (priv->sei_a53cc_data != NULL) {
+            priv->sei_a53cc.itu_t_t35_country_code = 181;
+            priv->sei_a53cc.data = (uint8_t *)priv->sei_a53cc_data + 1;
+            priv->sei_a53cc.data_length = sei_a53cc_len - 1;
+
+            priv->sei_needed |= SEI_A53_CC;
+        }
+    }
+
     vpic->decoded_curr_pic = (VAPictureHEVC) {
         .picture_id    = pic->recon_surface,
         .pic_order_cnt = hpic->pic_order_cnt,
@@ -1349,6 +1376,7 @@ static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)
 
     ff_cbs_fragment_free(&priv->current_access_unit);
     ff_cbs_close(&priv->cbc);
+    av_freep(&priv->sei_a53cc_data);
 
     return ff_vaapi_encode_close(avctx);
 }
@@ -1407,7 +1435,7 @@ static const AVOption vaapi_encode_h265_options[] = {
 
     { "sei", "Set SEI to include",
       OFFSET(sei), AV_OPT_TYPE_FLAGS,
-      { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
+      { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL | SEI_A53_CC },
       0, INT_MAX, FLAGS, "sei" },
     { "hdr",
       "Include HDR metadata for mastering display colour volume "
@@ -1415,6 +1443,11 @@ static const AVOption vaapi_encode_h265_options[] = {
       0, AV_OPT_TYPE_CONST,
       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
       INT_MIN, INT_MAX, FLAGS, "sei" },
+    { "a53_cc",
+      "Include A/53 caption data",
+      0, AV_OPT_TYPE_CONST,
+      { .i64 = SEI_A53_CC },
+      INT_MIN, INT_MAX, FLAGS, "sei" },
 
     { "tiles", "Tile columns x rows",
       OFFSET(common.tile_cols), AV_OPT_TYPE_IMAGE_SIZE,