[FFmpeg-devel] [PATCH 2/4] avcodec/dvdsubdec: extract every subtitle in a different file (debug).

Clément Bœsch u at pkh.me
Sun Sep 29 23:28:30 CEST 2013


Even thought a generic solution would be more relevant, this is
currently helpful while debugging.
---
 libavcodec/dvdsubdec.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/libavcodec/dvdsubdec.c b/libavcodec/dvdsubdec.c
index 83ed27e..5951892 100644
--- a/libavcodec/dvdsubdec.c
+++ b/libavcodec/dvdsubdec.c
@@ -35,6 +35,9 @@ typedef struct DVDSubContext
   int      has_palette;
   uint8_t  colormap[4];
   uint8_t  alpha[256];
+#ifdef DEBUG
+  int sub_id;
+#endif
 } DVDSubContext;
 
 static void yuv_a_to_rgba(const uint8_t *ycbcr, const uint8_t *alpha, uint32_t *rgba, int num_values)
@@ -504,11 +507,16 @@ static int dvdsub_decode(AVCodecContext *avctx,
         goto no_subtitle;
 
 #if defined(DEBUG)
+    {
+    char ppm_name[32];
+
+    snprintf(ppm_name, sizeof ppm_name, "/tmp/%05d.ppm", ctx->sub_id++);
     av_dlog(NULL, "start=%d ms end =%d ms\n",
             sub->start_display_time,
             sub->end_display_time);
-    ppm_save("/tmp/a.ppm", sub->rects[0]->pict.data[0],
+    ppm_save(ppm_name, sub->rects[0]->pict.data[0],
              sub->rects[0]->w, sub->rects[0]->h, sub->rects[0]->pict.data[1]);
+    }
 #endif
 
     *data_size = 1;
-- 
1.8.4



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