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Thu, 23 Jan 2025 20:47:49 -0800 (PST) Received: from localhost ([157.82.207.107]) by smtp.gmail.com with UTF8SMTPSA id d2e1a72fcca58-72f8a782774sm834784b3a.156.2025.01.23.20.47.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Jan 2025 20:47:49 -0800 (PST) From: Akihiko Odaki Date: Fri, 24 Jan 2025 13:47:14 +0900 Subject: [PATCH v6 4/5] audio: Add functions to initialize buffers MIME-Version: 1.0 Message-Id: <20250124-coreaudio-v6-4-11fbcb6c47cf@daynix.com> References: <20250124-coreaudio-v6-0-11fbcb6c47cf@daynix.com> In-Reply-To: <20250124-coreaudio-v6-0-11fbcb6c47cf@daynix.com> To: Gerd Hoffmann , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Christian Schoenebeck , BALATON Zoltan Cc: qemu-devel@nongnu.org, devel@daynix.com, Akihiko Odaki , Phil Dennis-Jordan X-Mailer: b4 0.14.2 Received-SPF: pass client-ip=2607:f8b0:4864:20::631; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x631.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org These functions can be used to re-initialize buffers when hardware parameters change due to device hotplug, for example. Signed-off-by: Akihiko Odaki Reviewed-by: Phil Dennis-Jordan Reviewed-by: Christian Schoenebeck --- audio/audio_int.h | 2 ++ audio/audio.c | 24 ++++++++++++++++++------ 2 files changed, 20 insertions(+), 6 deletions(-) diff --git a/audio/audio_int.h b/audio/audio_int.h index 2d079d00a2596e6bce20e1f52abf01a88c4e0012..9ba4a144d571659ad2d32a4d6b2919ad0db89e25 100644 --- a/audio/audio_int.h +++ b/audio/audio_int.h @@ -187,9 +187,11 @@ struct audio_pcm_ops { void (*volume_in)(HWVoiceIn *hw, Volume *vol); }; +void audio_generic_initialize_buffer_in(HWVoiceIn *hw); void audio_generic_run_buffer_in(HWVoiceIn *hw); void *audio_generic_get_buffer_in(HWVoiceIn *hw, size_t *size); void audio_generic_put_buffer_in(HWVoiceIn *hw, void *buf, size_t size); +void audio_generic_initialize_buffer_out(HWVoiceOut *hw); void audio_generic_run_buffer_out(HWVoiceOut *hw); size_t audio_generic_buffer_get_free(HWVoiceOut *hw); void *audio_generic_get_buffer_out(HWVoiceOut *hw, size_t *size); diff --git a/audio/audio.c b/audio/audio.c index 87b4e9b6f2f356b6e5e972eabc100cf270fcbc29..17c6bbd0ae9e6ff810c0989dbfa1710ef674ff0a 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -1407,12 +1407,18 @@ void audio_run(AudioState *s, const char *msg) #endif } +void audio_generic_initialize_buffer_in(HWVoiceIn *hw) +{ + g_free(hw->buf_emul); + hw->size_emul = hw->samples * hw->info.bytes_per_frame; + hw->buf_emul = g_malloc(hw->size_emul); + hw->pos_emul = hw->pending_emul = 0; +} + void audio_generic_run_buffer_in(HWVoiceIn *hw) { if (unlikely(!hw->buf_emul)) { - hw->size_emul = hw->samples * hw->info.bytes_per_frame; - hw->buf_emul = g_malloc(hw->size_emul); - hw->pos_emul = hw->pending_emul = 0; + audio_generic_initialize_buffer_in(hw); } while (hw->pending_emul < hw->size_emul) { @@ -1446,6 +1452,14 @@ void audio_generic_put_buffer_in(HWVoiceIn *hw, void *buf, size_t size) hw->pending_emul -= size; } +void audio_generic_initialize_buffer_out(HWVoiceOut *hw) +{ + g_free(hw->buf_emul); + hw->size_emul = hw->samples * hw->info.bytes_per_frame; + hw->buf_emul = g_malloc(hw->size_emul); + hw->pos_emul = hw->pending_emul = 0; +} + size_t audio_generic_buffer_get_free(HWVoiceOut *hw) { if (hw->buf_emul) { @@ -1477,9 +1491,7 @@ void audio_generic_run_buffer_out(HWVoiceOut *hw) void *audio_generic_get_buffer_out(HWVoiceOut *hw, size_t *size) { if (unlikely(!hw->buf_emul)) { - hw->size_emul = hw->samples * hw->info.bytes_per_frame; - hw->buf_emul = g_malloc(hw->size_emul); - hw->pos_emul = hw->pending_emul = 0; + audio_generic_initialize_buffer_out(hw); } *size = MIN(hw->size_emul - hw->pending_emul,