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Convert input PCM to float format.

This commit is contained in:
Armin Novak 2019-08-02 14:18:12 +02:00
parent 5ffe2eed4e
commit 23069d1fe2
1 changed files with 5 additions and 5 deletions
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10
channels/rdpsnd/client/mac/rdpsnd_mac.m
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@ -166,7 +166,7 @@ static BOOL rdpsnd_mac_open(rdpsndDevicePlugin* device, const AUDIO_FORMAT* form
mac->player = [[AVAudioPlayerNode alloc] init];
[mac->engine attachNode: mac->player];
[mac->engine connect: mac->player to: mac->engine.outputNode format: nil];
[mac->engine connect: mac->player to: mac->engine.mainMixerNode format: nil];
if (![mac->engine startAndReturnError: &error])
{
@ -260,7 +260,7 @@ static UINT rdpsnd_mac_play(rdpsndDevicePlugin* device, const BYTE* data, size_t
rdpsndMacPlugin* mac = (rdpsndMacPlugin*) device;
AVAudioPCMBuffer* buffer;
AVAudioFormat* format;
int16_t * const * db;
float * const * db;
size_t pos, step, x;
AVAudioFrameCount count;
@ -271,17 +271,17 @@ static UINT rdpsnd_mac_play(rdpsndDevicePlugin* device, const BYTE* data, size_t
rdpsnd_mac_start(device);
count = size / step;
format = [[AVAudioFormat alloc] initWithCommonFormat:AVAudioPCMFormatInt16 sampleRate:mac->format.nSamplesPerSec channels:mac->format.nChannels interleaved:NO];
format = [[AVAudioFormat alloc] initWithCommonFormat:AVAudioPCMFormatFloat32 sampleRate:mac->format.nSamplesPerSec channels:mac->format.nChannels interleaved:NO];
buffer = [[AVAudioPCMBuffer alloc] initWithPCMFormat:format frameCapacity: count];
buffer.frameLength = buffer.frameCapacity;
db = buffer.int16ChannelData;
db = buffer.floatChannelData;
for (pos=0; pos<count; pos++)
{
const BYTE* d = &data[pos*step];
for (x=0; x<mac->format.nChannels; x++)
{
const int16_t val = (int16_t)((uint16_t)d[0] | ((uint16_t)d[1] << 8));
const float val = (int16_t)((uint16_t)d[0] | ((uint16_t)d[1] << 8)) / 32768.0f;
db[x][pos] = val;
d += sizeof(int16_t);
}