lavc: move bitstream filter args to the bsf ctx

libavcodec/avcodec.h

@@ -5026,6 +5026,11 @@ typedef struct AVBitStreamFilterContext {
     struct AVBitStreamFilter *filter;
     AVCodecParserContext *parser;
     struct AVBitStreamFilterContext *next;
+    /**
+     * Internal default arguments, used if NULL is passed to av_bitstream_filter_filter().
+     * Not for access by library users.
+     */
+    char *args;
 } AVBitStreamFilterContext;
 
 

libavcodec/bitstream_filter.c

@@ -73,6 +73,7 @@ void av_bitstream_filter_close(AVBitStreamFilterContext *bsfc)
     if (bsfc->filter->close)
         bsfc->filter->close(bsfc);
     av_freep(&bsfc->priv_data);
+    av_freep(&bsfc->args);
     av_parser_close(bsfc->parser);
     av_free(bsfc);
 }
@@ -84,6 +85,6 @@ int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
 {
     *poutbuf      = (uint8_t *)buf;
     *poutbuf_size = buf_size;
-    return bsfc->filter->filter(bsfc, avctx, args, poutbuf, poutbuf_size,
-                                buf, buf_size, keyframe);
+    return bsfc->filter->filter(bsfc, avctx, args ? args : bsfc->args,
+                                poutbuf, poutbuf_size, buf, buf_size, keyframe);
 }

libavcodec/version.h

@@ -29,8 +29,8 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR  57
-#define LIBAVCODEC_VERSION_MINOR   4
-#define LIBAVCODEC_VERSION_MICRO 101
+#define LIBAVCODEC_VERSION_MINOR   5
+#define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \