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test/run_output: use class StaticFifoBuffer

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This commit is contained in:
Max Kellermann 2021-03-08 16:58:12 +01:00
parent 2bebc79363
commit eff50b263a
1 changed files with 21 additions and 15 deletions
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36
test/run_output.cxx
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@ -31,6 +31,7 @@
#include "util/StringBuffer.hxx"
#include "util/RuntimeError.hxx"
#include "util/ScopeExit.hxx"
#include "util/StaticFifoBuffer.hxx"
#include "util/PrintException.hxx"
#include "LogBackend.hxx"
@ -127,32 +128,37 @@ RunOutput(AudioOutput &ao, AudioFormat audio_format,
fprintf(stderr, "audio_format=%s\n",
ToString(audio_format).c_str());
size_t frame_size = audio_format.GetFrameSize();
const size_t in_frame_size = audio_format.GetFrameSize();
/* play */
size_t length = 0;
char buffer[4096];
StaticFifoBuffer<std::byte, 4096> buffer;
while (true) {
if (length < sizeof(buffer)) {
ssize_t nbytes = in_fd.Read(buffer + length,
sizeof(buffer) - length);
{
const auto dest = buffer.Write();
assert(!dest.empty());
ssize_t nbytes = in_fd.Read(dest.data, dest.size);
if (nbytes <= 0)
break;
length += (size_t)nbytes;
buffer.Append(nbytes);
}
size_t play_length = (length / frame_size) * frame_size;
if (play_length > 0) {
size_t consumed = ao.Play(buffer, play_length);
auto src = buffer.Read();
assert(!src.empty());
assert(consumed <= length);
assert(consumed % frame_size == 0);
src.size -= src.size % in_frame_size;
if (src.empty())
continue;
length -= consumed;
memmove(buffer, buffer + consumed, length);
}
size_t consumed = ao.Play(src.data, src.size);
assert(consumed <= src.size);
assert(consumed % in_frame_size == 0);
buffer.Consume(consumed);
}
}