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Audio: Make basic streaming WAV playback work.
I had to solve a bunch of things simultaneously to make this work. Refactor AWavLoader to be a streaming loader rather than a one-shot one. The constructor parses the header, and if everything looks good, you can repeatedly ask the AWavLoader for sample buffers until it runs out. Also send a message from AudioServer when a buffer has finished playing. That allows us to implement a blocking variant of play(). Use all of this in aplay to play WAV files chunk-at-a-time. This is definitely not perfect and it's a little glitchy and skippy, but I think it's a step in the right direction.
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a292d8cd5a
commit
426248098c
10 changed files with 88 additions and 64 deletions
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@ -48,11 +48,6 @@ bool ASClientConnection::handle_message(const ASAPI_ClientMessage& message, cons
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did_misbehave();
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return false;
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}
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if (shared_buf->size() / sizeof(ASample) > 441000) {
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did_misbehave();
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return false;
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}
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samples.resize(shared_buf->size() / sizeof(ASample));
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memcpy(samples.data(), shared_buf->data(), shared_buf->size());
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}
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@ -64,7 +59,7 @@ bool ASClientConnection::handle_message(const ASAPI_ClientMessage& message, cons
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reply.playing_buffer.buffer_id = message.play_buffer.buffer_id;
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post_message(reply);
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m_mixer.queue(*this, adopt(*new ABuffer(move(samples))));
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m_mixer.queue(*this, ABuffer::create_with_samples(move(samples)), message.play_buffer.buffer_id);
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break;
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}
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case ASAPI_ClientMessage::Type::Invalid:
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