[FFmpeg-devel] [PATCH 1/1] avformat/avio: add configuration options for IO_BUFFER_SIZE

[FFmpeg-devel] [PATCH 1/1] avformat/avio: add configuration options for IO_BUFFER_SIZE

[joneyao6]

From: Jingwei Yao <joneyao6@gmail.com>

Signed-off-by: Jingwei Yao <joneyao6@gmail.com>
---
 configure             | 6 ++++++
 libavformat/aviobuf.c | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 04b83a8868..8ee33a4ba9 100755
--- a/configure
+++ b/configure
@@ -437,6 +437,7 @@ Advanced options (experts only):
                            disable buffer boundary checking in bitreaders
                            (faster, but may crash)
   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
+  --avio-buffer-size=N     the max buffer size aviobuf uses [$avio_buffer_size_default]
 
 Optimization options (experts only):
   --disable-asm            disable all assembly optimizations
@@ -2693,6 +2694,7 @@ CMDLINE_SET="
     arch
     as
     assert_level
+    avio_buffer_size
     build_suffix
     cc
     objcc
@@ -4181,6 +4183,9 @@ enable valgrind_backtrace
 sws_max_filter_size_default=256
 set_default sws_max_filter_size
 
+avio_buffer_size_default=32768
+set_default avio_buffer_size
+
 # internal components are enabled by default
 enable $EXTRALIBS_LIST
 
@@ -8259,6 +8264,7 @@ cat > $TMPH <<EOF
 #define BUILDSUF "$build_suffix"
 #define SLIBSUF "$SLIBSUF"
 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
+#define AVIO_BUFFER_SIZE $avio_buffer_size
 EOF
 
 test -n "$assert_level" &&
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 6a74c1ce68..7760c34ec9 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -33,7 +33,7 @@
 #include "internal.h"
 #include <stdarg.h>
 
-#define IO_BUFFER_SIZE 32768
+#define IO_BUFFER_SIZE AVIO_BUFFER_SIZE
 
 /**
  * Do seeks within this distance ahead of the current buffer by skipping
-- 
2.25.1

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Re: [FFmpeg-devel] [PATCH 1/1] avformat/avio: add configuration options for IO_BUFFER_SIZE

[Nicolas George]

joneyao6@gmail.com (HE12025-03-11):
> From: Jingwei Yao <joneyao6@gmail.com>
> 
> Signed-off-by: Jingwei Yao <joneyao6@gmail.com>
> ---
>  configure             | 6 ++++++
>  libavformat/aviobuf.c | 2 +-
>  2 files changed, 7 insertions(+), 1 deletion(-)

Thanks for the patch. It is missing the explanations about why.

Regards,

-- 
  Nicolas George
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