Support for stop_dsd_silence #410 (#411)

Dockerfile

@@ -128,6 +128,7 @@ ENV ALSA_OUTPUT_ALLOWED_FORMATS_PRESET ""
 ENV ALSA_OUTPUT_FORMAT ""
 ENV ALSA_OUTPUT_AUTO_RESAMPLE ""
 ENV ALSA_OUTPUT_THESYCON_DSD_WORKAROUND ""
+ENV ALSA_OUTPUT_STOP_DSD_SILENCE ""
 ENV ALSA_OUTPUT_INTEGER_UPSAMPLING ""
 ENV ALSA_OUTPUT_INTEGER_UPSAMPLING_ALLOWED ""
 ENV ALSA_OUTPUT_INTEGER_UPSAMPLING_ALLOWED_PRESET ""

README.md

@@ -265,7 +265,8 @@ ALSA_OUTPUT_ALLOWED_FORMATS_PRESET|Alternative to `ALSA_OUTPUT_ALLOWED_FORMATS`.
 ALSA_OUTPUT_ALLOWED_FORMATS|Sets allowed formats
 ALSA_OUTPUT_FORMAT|Sets output format
 ALSA_OUTPUT_AUTO_RESAMPLE|If set to no, then libasound will not attempt to resample. In this case, the user is responsible for ensuring that the requested sample rate can be produced natively by the device, otherwise an error will occur.
-ALSA_OUTPUT_THESYCON_DSD_WORKAROUND|If enabled, enables a workaround for a bug in Thesycon USB audio receivers. On these devices, playing DSD512 or PCM causes all subsequent attempts to play other DSD rates to fail, which can be fixed by briefly playing PCM at 44.1 kHz.
+ALSA_OUTPUT_STOP_DSD_SILENCE|If enabled, silence is played before manually stopping playback (“stop” or “pause”) in DSD mode (native DSD or DoP). This is a workaround for some DACs which emit noise when stopping DSD playback. Can be left blank or to `yes` or `no`
+ALSA_OUTPUT_THESYCON_DSD_WORKAROUND|If enabled, enables a workaround for a bug in Thesycon USB audio receivers. On these devices, playing DSD512 or PCM causes all subsequent attempts to play other DSD rates to fail, which can be fixed by briefly playing PCM at 44.1 kHz. Can be left blank or to `yes` or `no`
 ALSA_OUTPUT_INTEGER_UPSAMPLING|If one or more `ALSA_ALLOWED_FORMATS` are set and `INTEGER_UPSAMPLING` is set to `yes`, the formats which are evenly divided by the source sample rate are preferred. The `ALSA_ALLOWED_FORMATS` list is processed in order as provided to the container. So if you want to upsample, put higher sampling rates first. Using this feature causes a patched version of mpd to be run. Use at your own risk.
 ALSA_OUTPUT_INTEGER_UPSAMPLING_ALLOWED|Allows selection of sample rates to be upsampled. If set, only specified values are allowed. The values should respect the same format user for `ALSA_OUTPUT_ALLOWED_FORMATS`
 ALSA_OUTPUT_INTEGER_UPSAMPLING_ALLOWED_PRESET|Preset for `ALSA_OUTPUT_INTEGER_UPSAMPLING_ALLOWED`. Allowed values are `base` (for 44.1kHz and 48.0kHz) and `44` for 44.1kHz only

app/bin/build-additional.sh

@@ -251,6 +251,7 @@ build_alsa() {
         fi
         add_output_parameter $out_file $idx ALSA_OUTPUT_AUTO_RESAMPLE auto_resample "" none
         add_output_parameter $out_file $idx ALSA_OUTPUT_THESYCON_DSD_WORKAROUND thesycon_dsd_workaround "" none
+        add_output_parameter $out_file $idx ALSA_OUTPUT_STOP_DSD_SILENCE stop_dsd_silence "" none
         add_output_parameter $out_file $idx ALSA_OUTPUT_INTEGER_UPSAMPLING integer_upsampling "" none
         add_alsa_output_parameter $out_file $idx ALSA_OUTPUT_INTEGER_UPSAMPLING_ALLOWED integer_upsampling_allowed "" none "integer_upsampling_allowed"
         add_output_parameter $out_file $idx ALSA_OUTPUT_DOP dop "" none

app/bin/run-mpd.sh

@@ -11,6 +11,7 @@
 # 9 Invalid parameter
 # 10 Missing mandatory parameter
 # 11 Missing binaries
+# 12 Invalid stop_dsd_silence mode
 
 current_user_id=$(id -u)
 echo "Current user id is [$current_user_id]"

doc/change-history.md

@@ -2,6 +2,7 @@
 
 Date|Major Changes
 :---|:---
+2024-10-11|Support for `stop_dsd_silence` (see issue [#410](https://github.com/GioF71/mpd-alsa-docker/issues/410))
 2024-09-21|Fix CURL_PROXY interpretation (thank you [tantra35](https://github.com/tantra35))
 2024-09-21|Use exec instead of eval, avoid root process (thank you [tantra35](https://github.com/tantra35))
 2024-08-23|Use ubuntu noble instead of mantic (see issue [#405](https://github.com/GioF71/mpd-alsa-docker/issues/405))
@@ -24,7 +25,7 @@ Date|Major Changes
 2023-09-22|Fixed processing of ALSA_OUTPUT_AUTO_FIND_MIXER (see issue [#326](https://github.com/GioF71/mpd-alsa-docker/issues/326))
 2023-09-22|Fixed preset for Yulong D200 (see issue [#283](https://github.com/GioF71/mpd-alsa-docker/issues/283))
 2023-09-22|Add presets for Topping D10s and D10 Balanced (see issue [#327](https://github.com/GioF71/mpd-alsa-docker/issues/327))
-2023-09-22|Fixed processing of alsa-related strings with trailing spaces (see issue [#328](https://github.com/GioF71/mpd-alsa-docker/issues/328)) 
+2023-09-22|Fixed processing of alsa-related strings with trailing spaces (see issue [#328](https://github.com/GioF71/mpd-alsa-docker/issues/328))
 2023-09-19|Extend support for proxy plugin (see issue [#324](https://github.com/GioF71/mpd-alsa-docker/issues/324))
 2023-08-30|Unified github workflows, using arm/v5 instead of v6 (see issue [#321](https://github.com/GioF71/mpd-alsa-docker/issues/321))
 2023-07-21|Build mode must default to `full` (see issue [#319](https://github.com/GioF71/mpd-alsa-docker/issues/319))