[i2s_audio] Bugfix: Buffer overflow in software volume control (#13190)

2026-05-13 12:00:47 +08:00 · 2026-01-13 19:42:36 +00:00
parent 4d96c60696
commit 733f57da50
1 changed files with 1 additions and 1 deletions
@@ -340,8 +340,8 @@ void I2SAudioSpeaker::speaker_task(void *params) {
      const uint32_t read_delay =
          (this_speaker->current_stream_info_.frames_to_microseconds(frames_written) / 1000) / 2;

-      uint8_t *new_data = transfer_buffer->get_buffer_end();  // track start of any newly copied bytes
      size_t bytes_read = transfer_buffer->transfer_data_from_source(pdMS_TO_TICKS(read_delay));
+      uint8_t *new_data = transfer_buffer->get_buffer_end() - bytes_read;

      if (bytes_read > 0) {
        if (this_speaker->q15_volume_factor_ < INT16_MAX) {