[FFmpeg-devel] [PATCH 2/2] ffmpeg: add max_error_rate to allow tuning the point decoding errors are considered a failure of the whole transcoding.

[Michael Niedermayer]

Suggested-by: Daemon404
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
---
 ffmpeg.c     |    2 +-
 ffmpeg.h     |    1 +
 ffmpeg_opt.c |    3 +++
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/ffmpeg.c b/ffmpeg.c
index d1c841f..995b49f 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3420,7 +3420,7 @@ int main(int argc, char **argv)
     }
     av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
            decode_error_stat[0], decode_error_stat[1]);
-    if (2*decode_error_stat[0] < decode_error_stat[1])
+    if (decode_error_stat[1] && (decode_error_stat[0] + decode_error_stat[1]) * max_error_rate <= decode_error_stat[1])
         exit_program(69);
 
     exit_program(received_nb_signals ? 255 : 0);
diff --git a/ffmpeg.h b/ffmpeg.h
index 09b29a9..054e718 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -420,6 +420,7 @@ extern int qp_hist;
 extern int stdin_interaction;
 extern int frame_bits_per_raw_sample;
 extern AVIOContext *progress_avio;
+extern float max_error_rate;
 
 extern const AVIOInterruptCB int_cb;
 
diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index 8ff5bdf..4289a12 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -84,6 +84,7 @@ int print_stats       = -1;
 int qp_hist           = 0;
 int stdin_interaction = 1;
 int frame_bits_per_raw_sample = 0;
+float max_error_rate  = 2.0/3;
 
 
 static int intra_only         = 0;
@@ -2709,6 +2710,8 @@ const OptionDef options[] = {
         "extract an attachment into a file", "filename" },
     { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
         "print timestamp debugging info" },
+    { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
+        "maximum error rate", "rate between 0.0 and 1.1" },
 
     /* video options */
     { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
-- 
1.7.9.5