aacdec: Set the profile during decoding

Previously the profile would not be set if the bitstream needs
to be decoded to know the profile.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

libavcodec/aacdec.c

@@ -2185,10 +2185,12 @@ static int decode_extension_payload(AACContext *ac, GetBitContext *gb, int cnt,
         } else if (ac->oc[1].m4ac.ps == -1 && ac->oc[1].status < OC_LOCKED && ac->avctx->channels == 1) {
             ac->oc[1].m4ac.sbr = 1;
             ac->oc[1].m4ac.ps = 1;
+            ac->avctx->profile = FF_PROFILE_AAC_HE_V2;
             output_configure(ac, ac->oc[1].layout_map, ac->oc[1].layout_map_tags,
                              ac->oc[1].status, 1);
         } else {
             ac->oc[1].m4ac.sbr = 1;
+            ac->avctx->profile = FF_PROFILE_AAC_HE;
         }
         res = ff_decode_sbr_extension(ac, &che->sbr, gb, crc_flag, cnt, elem_type);
         break;
@@ -2704,6 +2706,10 @@ static int aac_decode_er_frame(AVCodecContext *avctx, void *data,
     if ((err = frame_configure_elements(avctx)) < 0)
         return err;
 
+    // The FF_PROFILE_AAC_* defines are all object_type - 1
+    // This may lead to an undefined profile being signaled
+    ac->avctx->profile = ac->oc[1].m4ac.object_type - 1;
+
     ac->tags_mapped = 0;
 
     if (chan_config < 0 || chan_config >= 8) {
@@ -2772,6 +2778,10 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
     if ((err = frame_configure_elements(avctx)) < 0)
         goto fail;
 
+    // The FF_PROFILE_AAC_* defines are all object_type - 1
+    // This may lead to an undefined profile being signaled
+    ac->avctx->profile = ac->oc[1].m4ac.object_type - 1;
+
     ac->tags_mapped = 0;
     // parse
     while ((elem_type = get_bits(gb, 3)) != TYPE_END) {

libavcodec/aacsbr.c

@@ -919,6 +919,7 @@ static void read_sbr_extension(AACContext *ac, SpectralBandReplication *sbr,
         } else {
 #if 1
             *num_bits_left -= ff_ps_read_data(ac->avctx, gb, &sbr->ps, *num_bits_left);
+            ac->avctx->profile = FF_PROFILE_AAC_HE_V2;
 #else
             avpriv_report_missing_feature(ac->avctx, "Parametric Stereo");
             skip_bits_long(gb, *num_bits_left); // bs_fill_bits