audio: refactor: work towards unentangling audio decoding and filtering

Similar to the video path. dec_audio.c now handles decoding only. It
also looks very similar to dec_video.c, and actually contains some of
the rewritten code from it. (A further goal might be unifying the
decoders, I guess.)

High potential for regressions.

1 files changed, 4 insertions, 4 deletions

diff --git a/audio/decode/ad_lavc.c b/audio/decode/ad_lavc.c
index f7304353af..3c17d0d9bb 100644
--- a/audio/decode/ad_lavc.c
+++ b/audio/decode/ad_lavc.c
@@ -196,21 +196,21 @@ static int decode_packet(struct dec_audio *da, struct demux_packet *mpkt,
         // LATM may need many packets to find mux info
         if (ret == AVERROR(EAGAIN)) {
             mpkt->len = 0;
-            return AD_OK;
+            return 0;
         }
     }
     if (ret < 0) {
         MP_ERR(da, "Error decoding audio.\n");
-        return AD_ERR;
+        return -1;
     }
     if (!got_frame)
-        return mpkt ? AD_OK : AD_EOF;
+        return 0;
 
     double out_pts = mp_pts_from_av(priv->avframe->pkt_pts, NULL);
 
     struct mp_audio *mpframe = mp_audio_from_avframe(priv->avframe);
     if (!mpframe)
-        return AD_ERR;
+        return -1;
 
     struct mp_chmap lavc_chmap = mpframe->channels;
     if (lavc_chmap.num != avctx->channels)