Merge commit '28096e0a806e57376541e6222d315619906e3c55'

* commit '28096e0a806e57376541e6222d315619906e3c55':
  h264: wait for initial complete frame before outputing frames

Conflicts:
	doc/APIchanges
	libavcodec/h264.c
	libavcodec/mpegvideo.h
	libavutil/frame.h
	libavutil/version.h

See: a64b028aeb6579636e578ceb73f69b468bddb2f0 (as well as various later commits)
Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 43 insertions, 18 deletions

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index cd6fff8d78..e317319d72 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -361,10 +361,10 @@ static int ref_picture(H264Context *h, Picture *dst, Picture *src)
     dst->field_picture = src->field_picture;
     dst->needs_realloc = src->needs_realloc;
     dst->reference     = src->reference;
-    dst->sync          = src->sync;
     dst->crop          = src->crop;
     dst->crop_left     = src->crop_left;
     dst->crop_top      = src->crop_top;
+    dst->recovered     = src->recovered;
 
     return 0;
 fail:
@@ -1902,7 +1902,7 @@ static int decode_update_thread_context(AVCodecContext *dst,
     copy_picture_range(h->delayed_pic, h1->delayed_pic,
                        MAX_DELAYED_PIC_COUNT + 2, h, h1);
 
-    h->sync            = h1->sync;
+    h->frame_recovered       = h1->frame_recovered;
 
     if (context_reinitialized)
         h264_set_parameter_from_sps(h);
@@ -1919,6 +1919,8 @@ static int decode_update_thread_context(AVCodecContext *dst,
     h->prev_frame_num        = h->frame_num;
     h->outputed_poc          = h->next_outputed_poc;
 
+    h->recovery_frame        = h1->recovery_frame;
+
     return err;
 }
 
@@ -1959,12 +1961,12 @@ static int h264_frame_start(H264Context *h)
      * See decode_nal_units().
      */
     pic->f.key_frame = 0;
-    pic->sync        = 0;
     pic->mmco_reset  = 0;
+    pic->recovered   = 0;
 
     if ((ret = alloc_picture(h, pic)) < 0)
         return ret;
-    if(!h->sync && !h->avctx->hwaccel &&
+    if(!h->frame_recovered && !h->avctx->hwaccel &&
        !(h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU))
         avpriv_color_frame(&pic->f, c);
 
@@ -2189,8 +2191,15 @@ static void decode_postinit(H264Context *h, int setup_finished)
         av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
     }
 
-    if (h->next_output_pic && h->next_output_pic->sync) {
-        h->sync |= 2;
+    if (h->next_output_pic) {
+        if (h->next_output_pic->recovered) {
+            // We have reached an recovery point and all frames after it in
+            // display order are "recovered".
+            h->frame_recovered |= FRAME_RECOVERED_SEI;
+        }
+#if 0
+        h->next_output_pic->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
+#endif
     }
 
     if (setup_finished && !h->avctx->hwaccel)
@@ -2781,8 +2790,8 @@ static void flush_change(H264Context *h)
     memset(h->default_ref_list[0], 0, sizeof(h->default_ref_list[0]));
     memset(h->default_ref_list[1], 0, sizeof(h->default_ref_list[1]));
     ff_h264_reset_sei(h);
-    h->recovery_frame= -1;
-    h->sync= 0;
+    h->recovery_frame = -1;
+    h->frame_recovered = 0;
     h->list_count = 0;
     h->current_slice = 0;
     h->mmco_reset = 1;
@@ -4844,8 +4853,8 @@ again:
                 if (   h->sei_recovery_frame_cnt >= 0
                     && (   h->recovery_frame<0
                         || ((h->recovery_frame - h->frame_num) & ((1 << h->sps.log2_max_frame_num)-1)) > h->sei_recovery_frame_cnt)) {
-                    h->recovery_frame = (h->frame_num + h->sei_recovery_frame_cnt) %
-                                        (1 << h->sps.log2_max_frame_num);
+                    h->recovery_frame = (h->frame_num + h->sei_recovery_frame_cnt) &
+                                        ((1 << h->sps.log2_max_frame_num) - 1);
 
                     if (!h->valid_recovery_point)
                         h->recovery_frame = h->frame_num;
@@ -4854,14 +4863,22 @@ again:
                 h->cur_pic_ptr->f.key_frame |=
                         (hx->nal_unit_type == NAL_IDR_SLICE);
 
-                if (h->recovery_frame == h->frame_num) {
-                    h->cur_pic_ptr->sync |= 1;
-                    h->recovery_frame = -1;
+                if (hx->nal_unit_type == NAL_IDR_SLICE ||
+                    h->recovery_frame == h->frame_num) {
+                    h->recovery_frame         = -1;
+                    h->cur_pic_ptr->recovered = 1;
                 }
-
-                h->sync |= !!h->cur_pic_ptr->f.key_frame;
-                h->sync |= 3*!!(avctx->flags2 & CODEC_FLAG2_SHOW_ALL);
-                h->cur_pic_ptr->sync |= h->sync;
+                // If we have an IDR, all frames after it in decoded order are
+                // "recovered".
+                if (hx->nal_unit_type == NAL_IDR_SLICE)
+                    h->frame_recovered |= FRAME_RECOVERED_IDR;
+                h->frame_recovered |= 3*!!(avctx->flags2 & CODEC_FLAG2_SHOW_ALL);
+                h->frame_recovered |= 3*!!(avctx->flags & CODEC_FLAG_OUTPUT_CORRUPT);
+#if 1
+                h->cur_pic_ptr->recovered |= h->frame_recovered;
+#else
+                h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
+#endif
 
                 if (h->current_slice == 1) {
                     if (!(avctx->flags2 & CODEC_FLAG2_CHUNKS))
@@ -5135,7 +5152,15 @@ not_extra:
 
         /* Wait for second field. */
         *got_frame = 0;
-        if (h->next_output_pic && (h->next_output_pic->sync || h->sync>1)) {
+#if 1
+        if (h->next_output_pic && (h->next_output_pic->recovered || h->frame_recovered>1)) {
+#else
+        if (h->next_output_pic && (
+                                   h->next_output_pic->recovered)) {
+#endif
+            if (!h->next_output_pic->recovered)
+                h->next_output_pic->f.flags |= AV_FRAME_FLAG_CORRUPT;
+
             ret = output_frame(h, pict, h->next_output_pic);
             if (ret < 0)
                 return ret;