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[codec,aac] add NaN filter

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ffmpeg format conversion from int16 to float sometimes produces values
that are NaN or Infinity.
Replace these values as these input values break the AAC encoder
This commit is contained in:
akallabeth
2023-11-20 11:02:21 +01:00
committed by akallabeth
parent a4e7aba97c
commit 20f09b2d34
1 changed files with 22 additions and 2 deletions
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24
libfreerdp/codec/dsp_ffmpeg.c
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@@ -430,9 +430,29 @@ static BOOL ffmpeg_resample_frame(AVAudioResampleContext* context, AVFrame* in,
static BOOL ffmpeg_encode_frame(AVCodecContext* context, AVFrame* in, AVPacket* packet,
wStream* out)
{
int ret;
if (in->format == AV_SAMPLE_FMT_FLTP)
{
uint8_t** pp = in->extended_data;
for (int y = 0; y < in->channels; y++)
{
float* data = pp[y];
for (int x = 0; x < in->nb_samples; x++)
{
const float val1 = data[x];
if (isnan(val1))
data[x] = 0.0f;
else if (isinf(val1))
{
if (val1 < 0.0f)
data[x] = -1.0f;
else
data[x] = 1.0f;
}
}
}
}
/* send the packet with the compressed data to the encoder */
ret = avcodec_send_frame(context, in);
int ret = avcodec_send_frame(context, in);
if (ret < 0)
{