oops

[ffmpeg] / output_example.c

diff --git a/output_example.c b/output_example.c
index ca47a888f134e23fe8a6607b0c3b8781eb27f278..2fba8fc6a87cad57054ed4d015c348f5b5a1a830 100644 (file)
--- a/output_example.c
+++ b/output_example.c
@@ -24,6 +24,7 @@
  */
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 #include <math.h>
 
 #ifndef M_PI
@@ -196,11 +197,20 @@ AVStream *add_video_stream(AVFormatContext *oc, int codec_id)
     c->frame_rate = STREAM_FRAME_RATE;  
     c->frame_rate_base = 1;
     c->gop_size = 12; /* emit one intra frame every twelve frames at most */
-    if (c->codec_id == CODEC_ID_MPEG1VIDEO ||
-        c->codec_id == CODEC_ID_MPEG2VIDEO) {
+    if (c->codec_id == CODEC_ID_MPEG2VIDEO) {
         /* just for testing, we also add B frames */
         c->max_b_frames = 2;
     }
+    if (c->codec_id == CODEC_ID_MPEG1VIDEO){
+        /* needed to avoid using macroblocks in which some coeffs overflow 
+           this doesnt happen with normal video, it just happens here as the 
+           motion of the chroma plane doesnt match the luma plane */
+        c->mb_decision=2;
+    }
+    // some formats want stream headers to be seperate
+    if(!strcmp(oc->oformat->name, "mp4") || !strcmp(oc->oformat->name, "mov") || !strcmp(oc->oformat->name, "3gp"))
+        c->flags |= CODEC_FLAG_GLOBAL_HEADER;
+    
     return st;
 }