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bluetooth: Move codec specific bits to their own respective files

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We move the codec specific bits to their own respective files and now
make the codec specific initialisation use a GstBin, which the generic
GStreamer module now uses in the pipeline.

It is job of the codec specific function to add elements in the GstBin
and link the added elements in the bin. It should also set up the ghost
pads as a GstBin has no pads of it's own and without which the bin
cannot be linked to the appsrc/appsink.

Also, we now only initialise either the encoding or the decoding
pipeline and not both. The codec init API already gets passed the
for_encoding flag. We pass and use the same to codec specific init
functions.

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/440>
This commit is contained in:
Sanchayan Maity 2021-01-05 15:57:06 +05:30
parent ed44fa1856
commit cdbb73f9ad
4 changed files with 408 additions and 113 deletions
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9
src/modules/bluetooth/a2dp-codec-gst.h
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@ -43,7 +43,7 @@ struct gst_info {
const a2dp_ldac_t *ldac_config;
} a2dp_codec_t;
GstElement *gst_enc, *gst_dec;
GstElement *enc_bin, *dec_bin;
GstElement *enc_src, *enc_sink;
GstElement *dec_src, *dec_sink;
GstElement *enc_pipeline, *dec_pipeline;
@ -55,7 +55,12 @@ struct gst_info {
uint16_t seq_num;
};
void *gst_codec_init(enum a2dp_codec_type codec_type, const uint8_t *config_buffer, uint8_t config_size, pa_sample_spec *ss, pa_core *core);
bool gst_codec_init(struct gst_info *info, bool for_encoding);
size_t gst_encode_buffer(void *codec_info, uint32_t timestamp, const uint8_t *input_buffer, size_t input_size, uint8_t *output_buffer, size_t output_size, size_t *processed);
size_t gst_decode_buffer(void *codec_info, const uint8_t *input_buffer, size_t input_size, uint8_t *output_buffer, size_t output_size, size_t *processed);
void gst_codec_deinit(void *codec_info);
bool gst_init_enc_common(struct gst_info *info);
bool gst_init_dec_common(struct gst_info *info);
void gst_deinit_enc_common(struct gst_info *info);
void gst_deinit_dec_common(struct gst_info *info);