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module-netjack2: samples are transmitted in little endian

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So swap them on big endian.
This commit is contained in:
Wim Taymans 2023-06-09 12:26:39 +02:00
parent 9dd5bab535
commit d35e514549
1 changed files with 35 additions and 6 deletions
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41
src/modules/module-netjack2/peer.c
View file

@ -1,22 +1,51 @@
#include <byteswap.h>
struct volume {
bool mute;
uint32_t n_volumes;
float volumes[SPA_AUDIO_MAX_CHANNELS];
};
static inline void do_volume(float *dst, const float *src, struct volume *vol, uint32_t ch, uint32_t n_samples)
static inline float bswap_f32(float f)
{
union {
float f;
uint32_t u;
} v;
v.f = f;
v.u = bswap_32(v.u);
return v.f;
}
static inline void do_volume(float *dst, const float *src, struct volume *vol, uint32_t ch, uint32_t n_samples, bool recv)
{
float v = vol->mute ? 0.0f : vol->volumes[ch];
uint32_t i;
if (v == 0.0f || src == NULL)
memset(dst, 0, n_samples * sizeof(float));
else if (v == 1.0f)
else if (v == 1.0f) {
#if __BYTE_ORDER == __BIG_ENDIAN
for (i = 0; i < n_samples; i++)
dst[i] = bswap_f32(src[i]);
#else
memcpy(dst, src, n_samples * sizeof(float));
else {
uint32_t i;
#endif
} else {
#if __BYTE_ORDER == __BIG_ENDIAN
if (recv) {
for (i = 0; i < n_samples; i++)
dst[i] = bswap_f32(src[i]) * v;
} else {
for (i = 0; i < n_samples; i++)
dst[i] = bswap_f32(src[i] * v);
}
#else
for (i = 0; i < n_samples; i++)
dst[i] = src[i] * v;
#endif
}
}
@ -288,7 +317,7 @@ static int netjack2_send_audio(struct netjack2_peer *peer, uint32_t nframes,
ap[0] = htonl(info[j].id);
src = SPA_PTROFF(info[j].data, i * sub_period_size * sizeof(float), float);
do_volume((float*)&ap[1], src, peer->send_volume, info[j].id, sub_period_size);
do_volume((float*)&ap[1], src, peer->send_volume, info[j].id, sub_period_size, false);
ap = SPA_PTROFF(ap, sub_period_bytes, int32_t);
}
@ -469,7 +498,7 @@ static int netjack2_recv_audio(struct netjack2_peer *peer, struct nj2_packet_hea
float *dst = SPA_PTROFF(data,
sub_cycle * sub_period_size * sizeof(float),
float);
do_volume(dst, (float*)&ap[1], peer->recv_volume, active_port, sub_period_size);
do_volume(dst, (float*)&ap[1], peer->recv_volume, active_port, sub_period_size, true);
info[active_port].filled = peer->sync.is_last;
}
}