#include <libavfilter/buffersrc.h>
#include <libavutil/opt.h>
-const char *filter_descr = "aresample=8000,aformat=sample_fmts=s16:channel_layouts=mono";
-const char *player = "ffplay -f s16le -ar 8000 -ac 1 -";
+static const char *filter_descr = "aresample=8000,aformat=sample_fmts=s16:channel_layouts=mono";
+static const char *player = "ffplay -f s16le -ar 8000 -ac 1 -";
static AVFormatContext *fmt_ctx;
static AVCodecContext *dec_ctx;
AVFilter *abuffersink = avfilter_get_by_name("abuffersink");
AVFilterInOut *outputs = avfilter_inout_alloc();
AVFilterInOut *inputs = avfilter_inout_alloc();
- const enum AVSampleFormat out_sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
- const int64_t out_channel_layouts[] = { AV_CH_LAYOUT_MONO, -1 };
- const int out_sample_rates[] = { 8000, -1 };
+ static const enum AVSampleFormat out_sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
+ static const int64_t out_channel_layouts[] = { AV_CH_LAYOUT_MONO, -1 };
+ static const int out_sample_rates[] = { 8000, -1 };
const AVFilterLink *outlink;
AVRational time_base = fmt_ctx->streams[audio_stream_index]->time_base;