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| author | Volker Rümelin <vr_qemu@t-online.de> | 2023-02-24 20:05:52 +0100 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2023-03-06 10:30:23 +0400 |
| commit | a9ea567873ba8d532520f194413ff28f37065c00 (patch) | |
| tree | c25cdae272de3f9ffbd94439cc7255496cd9c50f /hw/core/loader.c | |
| parent | fbde1edf06dad792ef3e9f51e3f52a49669bdd40 (diff) | |
| download | focaccia-qemu-a9ea567873ba8d532520f194413ff28f37065c00.tar.gz focaccia-qemu-a9ea567873ba8d532520f194413ff28f37065c00.zip | |
audio: make recording packet length calculation exact
Introduce the new function st_rate_frames_out() to calculate the exact number of audio output frames the resampling code can generate from a given number of audio input frames. When upsampling, this function returns the maximum number of output frames. This new function replaces the audio_frontend_frames_in() function, which calculated the average number of output frames rounded down to the nearest integer. The audio_frontend_frames_in() function was additionally used to limit the number of output frames to the resample buffer size. In audio_pcm_sw_read() the variable resample_buf.size replaces the open coded audio_frontend_frames_in() function. In audio_run_in() an additional MIN() function is necessary. After this patch the audio packet length calculation for audio recording is exact. Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-Id: <20230224190555.7409-12-vr_qemu@t-online.de>
Diffstat (limited to 'hw/core/loader.c')
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