[vlc-commits] [Git][videolan/vlc][master] demux: ts: use private flag for packet loss instead of discontinuity

[Steve Lhomme (@robUx4)]

Steve Lhomme pushed to branch master at VideoLAN / VLC


Commits:
a2e80470 by François Cartegnie at 2024-02-03T10:56:13+00:00
demux: ts: use private flag for packet loss instead of discontinuity

Simple packet loss is not a real discontinuity.
It is also up to the aggregation layer to deal with the effects

- - - - -


3 changed files:

- modules/demux/mpeg/ts.c
- modules/demux/mpeg/ts_pes.c
- modules/demux/mpeg/ts_pes.h


Changes:

=====================================
modules/demux/mpeg/ts.c
=====================================
@@ -2661,7 +2661,7 @@ static block_t * ProcessTSPacket( demux_t *p_demux, ts_pid_t *pid, block_t *p_pk
 
                 pid->i_cc = i_cc;
                 pid->i_dup = 0;
-                p_pkt->i_flags |= BLOCK_FLAG_DISCONTINUITY;
+                p_pkt->i_flags |= BLOCK_FLAG_PRIVATE_PACKET_LOSS;
             }
             else pid->i_cc = i_cc;
         }


=====================================
modules/demux/mpeg/ts_pes.c
=====================================
@@ -172,6 +172,15 @@ bool ts_pes_Gather( ts_pes_parse_callback *cb,
 
     }
 
+    /* Deal with explicit packet loss */
+    if( p_pkt->i_flags & BLOCK_FLAG_PRIVATE_PACKET_LOSS )
+    {
+        /* Flag unfinished unit as corrupted */
+        if ( p_pes->gather.i_gathered )
+            p_pes->gather.i_block_flags |= BLOCK_FLAG_CORRUPTED;
+        p_pkt->i_flags &= ~BLOCK_FLAG_PRIVATE_PACKET_LOSS;
+    }
+
     /* We'll cannot parse any pes data */
     if( (p_pkt->i_flags & BLOCK_FLAG_SCRAMBLED) && b_valid_scrambling )
     {


=====================================
modules/demux/mpeg/ts_pes.h
=====================================
@@ -21,6 +21,7 @@
 #define VLC_TS_PES_H
 
 #define BLOCK_FLAG_PRIVATE_SOURCE_RANDOM_ACCESS (1 << BLOCK_FLAG_PRIVATE_SHIFT)
+#define BLOCK_FLAG_PRIVATE_PACKET_LOSS          (2 << BLOCK_FLAG_PRIVATE_SHIFT)
 
 #define TS_PES_HEADER_SIZE 6
 



View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/a2e804702885d668fcfeefabcd0f6aecdff7fb27

-- 
View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/a2e804702885d668fcfeefabcd0f6aecdff7fb27
You're receiving this email because of your account on code.videolan.org.


VideoLAN code repository instance