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Track the formats of data in an SDL_AudioStream

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2023-08-31 13:29:35 +01:00
committed by Ryan C. Gordon
parent 337fed3df6
commit 43c3c5736d
2 changed files with 712 additions and 263 deletions
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942
src/audio/SDL_audiocvt.c
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33
src/audio/SDL_sysaudio.h
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@@ -24,8 +24,6 @@
#ifndef SDL_sysaudio_h_ #ifndef SDL_sysaudio_h_
#define SDL_sysaudio_h_ #define SDL_sysaudio_h_
#include "../SDL_dataqueue.h"
#define DEBUG_AUDIOSTREAM 0 #define DEBUG_AUDIOSTREAM 0
#define DEBUG_AUDIO_CONVERT 0 #define DEBUG_AUDIO_CONVERT 0
@@ -159,39 +157,32 @@ typedef struct SDL_AudioDriver
SDL_AtomicInt shutting_down; // non-zero during SDL_Quit, so we known not to accept any last-minute device hotplugs. SDL_AtomicInt shutting_down; // non-zero during SDL_Quit, so we known not to accept any last-minute device hotplugs.
} SDL_AudioDriver; } SDL_AudioDriver;
typedef struct SDL_AudioQueue SDL_AudioQueue;
struct SDL_AudioStream struct SDL_AudioStream
{ {
SDL_DataQueue *queue; SDL_Mutex* lock;
SDL_Mutex *lock; // this is just a copy of `queue`'s mutex. We share a lock.
SDL_AudioStreamCallback get_callback; SDL_AudioStreamCallback get_callback;
void *get_callback_userdata; void *get_callback_userdata;
SDL_AudioStreamCallback put_callback; SDL_AudioStreamCallback put_callback;
void *put_callback_userdata; void *put_callback_userdata;
SDL_AudioSpec src_spec;
SDL_AudioSpec dst_spec;
float speed;
SDL_AudioQueue* queue;
SDL_bool track_changed;
Sint64 resample_offset;
Uint8 *work_buffer; // used for scratch space during data conversion/resampling. Uint8 *work_buffer; // used for scratch space during data conversion/resampling.
size_t work_buffer_allocation; size_t work_buffer_allocation;
Uint8 *history_buffer; // history for left padding and future sample rate changes. Uint8 *history_buffer; // history for left padding and future sample rate changes.
size_t history_buffer_allocation; size_t history_buffer_allocation;
SDL_bool flushed;
int resampler_padding_frames;
int history_buffer_frames;
SDL_AudioSpec src_spec;
SDL_AudioSpec dst_spec;
Sint64 resample_rate;
Sint64 resample_offset;
int src_sample_frame_size;
int dst_sample_frame_size;
int max_sample_frame_size;
int packetlen;
SDL_bool simplified; // SDL_TRUE if created via SDL_OpenAudioDeviceStream SDL_bool simplified; // SDL_TRUE if created via SDL_OpenAudioDeviceStream
SDL_LogicalAudioDevice *bound_device; SDL_LogicalAudioDevice *bound_device;