[SCM] libav/experimental: Redesign packet queue full check to be more robust.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 79ee46836578e78ef9539f0232cd1f589ee2e2dc
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Sat Jan 30 21:27:17 2010 +0000

    Redesign packet queue full check to be more robust.
    
    Originally committed as revision 21555 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/ffplay.c b/ffplay.c
index c1b9cfc..69588d6 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -49,9 +49,9 @@ const int program_birth_year = 2003;
 
 //#define DEBUG_SYNC
 
-#define MAX_VIDEOQ_SIZE (30 * 256 * 1024)
-#define MAX_AUDIOQ_SIZE (20 * 16 * 1024)
-#define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
+#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
+#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
+#define MIN_FRAMES 5
 
 /* SDL audio buffer size, in samples. Should be small to have precise
    A/V sync as SDL does not have hardware buffer fullness info. */
@@ -2026,9 +2026,10 @@ static int decode_thread(void *arg)
         }
 
         /* if the queue are full, no need to read more */
-        if (is->audioq.size > MAX_AUDIOQ_SIZE ||
-            is->videoq.size > MAX_VIDEOQ_SIZE ||
-            is->subtitleq.size > MAX_SUBTITLEQ_SIZE) {
+        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
+            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
+                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
+                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
             /* wait 10 ms */
             SDL_Delay(10);
             continue;

-- 
Libav/FFmpeg packaging