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Yonokid
2025-08-27 11:39:53 -04:00
parent d5caf735fa
commit e3b09f868f
1 changed files with 4 additions and 70 deletions
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74
libs/audio.py
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@@ -220,15 +220,13 @@ class Music:
self.preview = preview # Preview start time in seconds
self.is_preview_mode = preview is not None
# Add preview-specific attributes
self.preview_start_frame = 0
self.preview_end_frame = 0
self.uses_file_streaming = False # Flag to indicate streaming vs memory loading
self.uses_file_streaming = False
self.file_buffer_size = int(target_sample_rate * 5) # 5 seconds buffer
self.buffer = None
self.buffer_position = 0
self.buffer_original_frames = 0 # Track original frames for resampling
# Thread-safe updates
self.lock = Lock()
@@ -245,7 +243,6 @@ class Music:
if self.data is None:
raise Exception("No data provided for memory loading")
# Convert to float32 if needed
if self.data.dtype != float32:
self.data = self.data.astype(float32)
@@ -260,11 +257,9 @@ class Music:
rms_scale_factor = target_rms / current_rms
self.data *= rms_scale_factor
# Determine channels and total frames
if self.data.ndim == 1:
self.channels = 1
self.total_frames = len(self.data)
# Reshape for consistency
self.data = self.data.reshape(-1, 1)
else:
self.channels = self.data.shape[1]
@@ -292,41 +287,27 @@ class Music:
original_total_frames = self.sound_file.frames
if self.is_preview_mode:
# Calculate preview boundaries but don't load data into memory
self.preview_start_frame = int(self.preview * self.sample_rate)
# For preview, we'll calculate the available frames from the start position
available_frames = original_total_frames - self.preview_start_frame
self.preview_end_frame = min(self.preview_start_frame + available_frames, original_total_frames)
# Ensure preview start is within bounds
if self.preview_start_frame >= original_total_frames:
self.preview_start_frame = max(0, original_total_frames - available_frames)
self.preview_end_frame = original_total_frames
# Set total frames to the preview length
self.total_frames = self.preview_end_frame - self.preview_start_frame
# Seek to preview start position
self.sound_file.seek(self.preview_start_frame)
# Enable file streaming mode (don't load into memory)
self.uses_file_streaming = True
self.data = None # Don't store full data in memory
print(f"Preview mode: Streaming {self.total_frames} frames ({self.total_frames/self.sample_rate:.2f}s) starting at {self.preview:.2f}s")
else:
# For non-preview mode, load entire file into memory as before
self.data = self.sound_file.read()
self.total_frames = original_total_frames
self.uses_file_streaming = False
# Process the loaded data
self.load_from_memory()
return # Early return to avoid duplicate processing
# Initialize buffer for streaming mode
self._fill_buffer()
self.valid = True
@@ -358,19 +339,17 @@ class Music:
if self.data is None:
return False
start_frame = self.position
start_frame = self.position + self.buffer_position
end_frame = min(start_frame + self.file_buffer_size, self.total_frames)
if start_frame >= self.total_frames:
return False
# Extract the chunk of data
data_chunk = self.data[start_frame:end_frame]
self.buffer = data_chunk
self.position += self.buffer_position
self.buffer_position = 0
# For memory mode, original frames equals buffer frames since no resampling happens here
self.buffer_original_frames = len(data_chunk) if data_chunk.ndim == 1 else data_chunk.shape[0]
return True
def _fill_buffer_from_file(self) -> bool:
@@ -378,37 +357,26 @@ class Music:
if not self.sound_file:
return False
# Calculate current absolute position in file (in original sample rate)
current_absolute_position = self.preview_start_frame + self.position
# Check if we've reached the end of the preview
if current_absolute_position >= self.preview_end_frame:
return False
# Calculate how many frames to read (respecting preview boundaries)
# This is in the original sample rate
frames_to_read = min(self.file_buffer_size, self.preview_end_frame - current_absolute_position)
if frames_to_read <= 0:
return False
# Seek to the correct position
self.sound_file.seek(current_absolute_position)
# Read the data chunk
data_chunk = self.sound_file.read(frames_to_read)
if len(data_chunk) == 0:
return False
# Store the original length before any processing
original_frames = len(data_chunk) if data_chunk.ndim == 1 else data_chunk.shape[0]
# Apply resampling if needed
if self.sample_rate != self.target_sample_rate:
data_chunk = resample(data_chunk, self.sample_rate, self.target_sample_rate)
# Apply normalization if needed
if self.normalize is not None:
current_rms = get_average_volume_rms(data_chunk)
if current_rms > 0:
@@ -416,19 +384,14 @@ class Music:
rms_scale_factor = target_rms / current_rms
data_chunk *= rms_scale_factor
# Ensure proper shape
if data_chunk.ndim == 1 and self.channels > 1:
data_chunk = data_chunk.reshape(-1, self.channels)
elif data_chunk.ndim == 2 and self.channels == 1:
data_chunk = data_chunk.flatten().reshape(-1, 1)
self.buffer = data_chunk
self.position += original_frames
self.buffer_position = 0
# Store how many original frames this buffer represents
# This is crucial for position tracking when resampling occurs
self.buffer_original_frames = original_frames
return True
def update(self) -> None:
@@ -437,24 +400,14 @@ class Music:
return
with self.lock:
# Check if we need to refill the buffer
if self.buffer is None:
return
if self.buffer_position >= len(self.buffer):
# Update position based on original frames consumed
if self.uses_file_streaming:
# For file streaming, we need to track position in original sample rate
self.position += self.buffer_original_frames
else:
# For memory mode, position is already in target sample rate
self.position += self.buffer_position
self.buffer_position = 0
self.is_playing = self._fill_buffer()
def play(self) -> None:
"""Start playing the music stream"""
with self.lock:
# Reset position if at the end
if self.position >= self.total_frames:
self.position = 0
self.buffer_position = 0
@@ -493,16 +446,12 @@ class Music:
def seek(self, position_seconds) -> None:
"""Seek to a specific position in seconds (relative to preview start if in preview mode)"""
with self.lock:
# Convert seconds to frames
frame_position = int(position_seconds * self.target_sample_rate)
# Clamp position to valid range
frame_position = max(0, min(frame_position, self.total_frames - 1))
self.position = frame_position
self.buffer_position = 0
# For file streaming, we'll let _fill_buffer handle the seeking
self._fill_buffer()
def get_time_length(self) -> float:
@@ -533,18 +482,7 @@ class Music:
if self.buffer is None:
return zeros(num_frames, dtype=float32)
# Check if we need more data
if self.buffer_position >= len(self.buffer):
# Update position based on what we actually consumed from the original file
if self.uses_file_streaming:
# For file streaming, advance by original frames (before resampling)
self.position += self.buffer_original_frames
else:
# For memory mode, advance by resampled frames
self.position += self.buffer_position
self.buffer_position = 0
# Try to fill buffer again
if not self._fill_buffer():
self.is_playing = False
if self.channels == 1:
@@ -552,7 +490,6 @@ class Music:
else:
return zeros((num_frames, self.channels), dtype=float32)
# Calculate how many frames we have left in buffer
frames_left_in_buffer = len(self.buffer) - self.buffer_position
if self.channels > 1:
frames_left_in_buffer = self.buffer.shape[0] - self.buffer_position
@@ -566,13 +503,10 @@ class Music:
output = zeros((num_frames, self.channels), dtype=float32)
output[:frames_to_get] = self.buffer[self.buffer_position:self.buffer_position+frames_to_get]
# Update buffer position
self.buffer_position += frames_to_get
# Apply volume
output *= self.volume
# Apply pan for stereo output
if self.channels == 2 and self.pan != 0.5:
# pan=0: full left, pan=0.5: center, pan=1: full right
left_vol = min(1.0, 2.0 * (1.0 - self.pan))