[FFmpeg-devel] [PATCH 4/7] lavc: set decode_error_flags when ec active

["J. Dekker" <jdek@itanimul.li>]

FF_DECODE_ERROR_CONCEALMENT_ACTIVE should be set when ec is active on
supported decoders.

Co-Authored-By: Thomas Guillem <thomas@gllm.fr>
Signed-off-by: J. Dekker <jdek@itanimul.li>
---
 libavcodec/h263dec.c   |  6 ++++--
 libavcodec/mpeg12dec.c |  3 ++-
 libavcodec/mss2.c      |  8 +++++---
 libavcodec/rv10.c      | 10 ++++++++--
 libavcodec/rv34.c      | 12 +++++++++---
 libavcodec/vc1dec.c    |  6 ++++--
 6 files changed, 32 insertions(+), 13 deletions(-)

diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 68a618a7ed..f3b9f09303 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -620,8 +620,10 @@ retry:
 
     av_assert1(s->bitstream_buffer_size == 0);
 frame_end:
-    if (!s->studio_profile)
-        ff_er_frame_end(&s->er);
+    if (!s->studio_profile) {
+        if (ff_er_frame_end(&s->er) > 0)
+            s->current_picture.f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
+    }
 
     if (avctx->hwaccel) {
         ret = avctx->hwaccel->end_frame(avctx);
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index 27b45c6fc4..82a1e56b67 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -2038,7 +2038,8 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict)
     if (/* s->mb_y << field_pic == s->mb_height && */ !s->first_field && !s1->first_slice) {
         /* end of image */
 
-        ff_er_frame_end(&s->er);
+        if (ff_er_frame_end(&s->er) > 0)
+            s->current_picture_ptr->f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
 
         ff_mpv_frame_end(s);
 
diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c
index 98103f7fed..851346b0ad 100644
--- a/libavcodec/mss2.c
+++ b/libavcodec/mss2.c
@@ -421,8 +421,12 @@ static int decode_wmv9(AVCodecContext *avctx, const uint8_t *buf, int buf_size,
 
     ff_vc1_decode_blocks(v);
 
+    f = s->current_picture.f;
+
     if (v->end_mb_x == s->mb_width && s->end_mb_y == s->mb_height) {
-        ff_er_frame_end(&s->er);
+        if (ff_er_frame_end(&s->er) > 0)
+             f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
+
     } else {
         av_log(v->s.avctx, AV_LOG_WARNING,
                "disabling error correction due to block count mismatch %dx%d != %dx%d\n",
@@ -431,8 +435,6 @@ static int decode_wmv9(AVCodecContext *avctx, const uint8_t *buf, int buf_size,
 
     ff_mpv_frame_end(s);
 
-    f = s->current_picture.f;
-
     if (v->respic == 3) {
         ctx->dsp.upsample_plane(f->data[0], f->linesize[0], w,      h);
         ctx->dsp.upsample_plane(f->data[1], f->linesize[1], w+1 >> 1, h+1 >> 1);
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index bb1ead5002..09a1d4dba6 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -440,6 +440,12 @@ static av_cold int rv10_decode_end(AVCodecContext *avctx)
     return 0;
 }
 
+static void rv10_er_frame_end(MpegEncContext *s)
+{
+    if (ff_er_frame_end(&s->er) > 0)
+        s->current_picture_ptr->f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
+}
+
 static int rv10_decode_packet(AVCodecContext *avctx, const uint8_t *buf,
                               int buf_size, int buf_size2, int whole_size)
 {
@@ -477,7 +483,7 @@ static int rv10_decode_packet(AVCodecContext *avctx, const uint8_t *buf,
     if ((s->mb_x == 0 && s->mb_y == 0) || !s->current_picture_ptr) {
         // FIXME write parser so we always have complete frames?
         if (s->current_picture_ptr) {
-            ff_er_frame_end(&s->er);
+            rv10_er_frame_end(s);
             ff_mpv_frame_end(s);
             s->mb_x = s->mb_y = s->resync_mb_x = s->resync_mb_y = 0;
         }
@@ -649,7 +655,7 @@ static int rv10_decode_frame(AVCodecContext *avctx, AVFrame *pict,
     }
 
     if (s->current_picture_ptr && s->mb_y >= s->mb_height) {
-        ff_er_frame_end(&s->er);
+        rv10_er_frame_end(s);
         ff_mpv_frame_end(s);
 
         if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index 51f18147af..c6231adf5f 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -1554,13 +1554,19 @@ static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n, in
         return buf_size;
 }
 
+static void rv34_er_frame_end(MpegEncContext *s)
+{
+    if (ff_er_frame_end(&s->er) > 0)
+        s->current_picture_ptr->f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
+}
+
 static int finish_frame(AVCodecContext *avctx, AVFrame *pict)
 {
     RV34DecContext *r = avctx->priv_data;
     MpegEncContext *s = &r->s;
     int got_picture = 0, ret;
 
-    ff_er_frame_end(&s->er);
+    rv34_er_frame_end(s);
     ff_mpv_frame_end(s);
     s->mb_num_left = 0;
 
@@ -1655,7 +1661,7 @@ int ff_rv34_decode_frame(AVCodecContext *avctx, AVFrame *pict,
             av_log(avctx, AV_LOG_ERROR, "New frame but still %d MB left.\n",
                    s->mb_num_left);
             if (!s->context_reinit)
-                ff_er_frame_end(&s->er);
+                rv34_er_frame_end(s);
             ff_mpv_frame_end(s);
         }
 
@@ -1790,7 +1796,7 @@ int ff_rv34_decode_frame(AVCodecContext *avctx, AVFrame *pict,
             av_log(avctx, AV_LOG_INFO, "marking unfished frame as finished\n");
             /* always mark the current frame as finished, frame-mt supports
              * only complete frames */
-            ff_er_frame_end(&s->er);
+            rv34_er_frame_end(s);
             ff_mpv_frame_end(s);
             s->mb_num_left = 0;
             ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index 9e343d003f..d930502176 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -1321,8 +1321,10 @@ static int vc1_decode_frame(AVCodecContext *avctx, AVFrame *pict,
         }
         if (   !v->field_mode
             && avctx->codec_id != AV_CODEC_ID_WMV3IMAGE
-            && avctx->codec_id != AV_CODEC_ID_VC1IMAGE)
-            ff_er_frame_end(&s->er);
+            && avctx->codec_id != AV_CODEC_ID_VC1IMAGE) {
+            if (ff_er_frame_end(&s->er) > 0)
+                s->current_picture.f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
+        }
     }
 
     ff_mpv_frame_end(s);
-- 
2.41.0

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