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bluetooth/aptx: Use capsfilter instead of appsink/appsrc "caps" prop

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Make the codec-specific initializer more generic by not touching any
elements outside of its own GstBin.

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/484>
This commit is contained in:
Marijn Suijten 2021-01-22 00:01:20 +01:00
parent 73c80ffba0
commit 46a97d76eb
1 changed files with 19 additions and 11 deletions
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30
src/modules/bluetooth/a2dp-codec-aptx-gst.c
View file

@ -269,7 +269,7 @@ static uint8_t fill_preferred_configuration_hd(const pa_sample_spec *default_sam
}
bool gst_init_aptx(struct gst_info *info, pa_sample_spec *ss, bool for_encoding) {
GstElement *enc, *dec;
GstElement *enc, *dec, *capsf;
GstCaps *caps = NULL;
GstPad *pad;
const char *aptx_codec_media_type;
@ -339,26 +339,32 @@ bool gst_init_aptx(struct gst_info *info, pa_sample_spec *ss, bool for_encoding)
"channels", G_TYPE_INT, (int) ss->channels,
NULL);
capsf = gst_element_factory_make("capsfilter", "aptx_capsfilter");
if (!capsf) {
pa_log_error("Could not create aptX capsfilter element");
goto fail;
}
g_object_set(capsf, "caps", caps, NULL);
if (for_encoding) {
enc = gst_element_factory_make("openaptxenc", "aptx_encoder");
if (enc == NULL) {
pa_log_error("Could not create aptX encoder element");
goto fail;
goto fail_enc_dec;
}
g_object_set(info->enc_sink, "caps", caps, NULL);
info->enc_bin = gst_bin_new("aptx_enc_bin");
pa_assert(info->enc_bin);
pa_assert_se(gst_bin_add(GST_BIN(info->enc_bin), enc));
gst_bin_add_many(GST_BIN(info->enc_bin), enc, capsf, NULL);
pa_assert_se(gst_element_link_many(enc, capsf, NULL));
pad = gst_element_get_static_pad(enc, "sink");
pa_assert_se(gst_element_add_pad(info->enc_bin, gst_ghost_pad_new("sink", pad)));
gst_object_unref(GST_OBJECT(pad));
pad = gst_element_get_static_pad(enc, "src");
pad = gst_element_get_static_pad(capsf, "src");
pa_assert_se(gst_element_add_pad(info->enc_bin, gst_ghost_pad_new("src", pad)));
gst_object_unref(GST_OBJECT(pad));
} else {
@ -366,17 +372,16 @@ bool gst_init_aptx(struct gst_info *info, pa_sample_spec *ss, bool for_encoding)
if (dec == NULL) {
pa_log_error("Could not create aptX decoder element");
goto fail;
goto fail_enc_dec;
}
g_object_set(info->dec_src, "caps", caps, NULL);
info->dec_bin = gst_bin_new("aptx_dec_bin");
pa_assert(info->dec_bin);
pa_assert_se(gst_bin_add(GST_BIN(info->dec_bin), dec));
gst_bin_add_many(GST_BIN(info->dec_bin), capsf, dec, NULL);
pa_assert_se(gst_element_link_many(capsf, dec, NULL));
pad = gst_element_get_static_pad(dec, "sink");
pad = gst_element_get_static_pad(capsf, "sink");
pa_assert_se(gst_element_add_pad(info->dec_bin, gst_ghost_pad_new("sink", pad)));
gst_object_unref(GST_OBJECT(pad));
@ -389,6 +394,9 @@ bool gst_init_aptx(struct gst_info *info, pa_sample_spec *ss, bool for_encoding)
return true;
fail_enc_dec:
gst_object_unref(GST_OBJECT(capsf));
fail:
if (caps)
gst_caps_unref(caps);