int channels;
conv_func_type *conv_f;
const int *ch_map;
+ uint8_t silence[8]; ///< silence input sample
};
#define CONV_FUNC_NAME(dst_fmt, src_fmt) conv_ ## src_fmt ## _to_ ## dst_fmt
if (!f)
return NULL;
- ctx = av_malloc(sizeof(*ctx));
+ ctx = av_mallocz(sizeof(*ctx));
if (!ctx)
return NULL;
ctx->channels = channels;
ctx->conv_f = f;
ctx->ch_map = ch_map;
+ if (in_fmt == AV_SAMPLE_FMT_U8)
+ memset(ctx->silence, 0x80, sizeof(ctx->silence));
return ctx;
}
int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len)
{
int ch;
- const uint8_t null_input[8] = {0};
av_assert0(ctx->channels == out->ch_count);
const int ich= ctx->ch_map ? ctx->ch_map[ch] : ch;
const int is= ich < 0 ? 0 : (in->planar ? 1 : in->ch_count) * in->bps;
const int os= (out->planar ? 1 :out->ch_count) *out->bps;
- const uint8_t *pi= ich < 0 ? null_input : in->ch[ich];
+ const uint8_t *pi= ich < 0 ? ctx->silence : in->ch[ich];
uint8_t *po= out->ch[ch];
uint8_t *end= po + os*len;
if(!po)