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bluetooth: unify encoder code paths

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Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/507>
This commit is contained in:
Igor V. Kovalenko 2021-03-03 08:12:08 +03:00 • committed by PulseAudio Marge Bot
parent 8a87af380a
commit 3902cee4a5
9 changed files with 330 additions and 183 deletions
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18
src/modules/bluetooth/a2dp-codec-aptx-gst.c
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@ -459,6 +459,13 @@ static size_t get_block_size(void *codec_info, size_t link_mtu) {
return frame_count * 4 * 6;
}
static size_t get_encoded_block_size(void *codec_info, size_t input_size) {
/* input size should be aligned to codec input block size */
pa_assert_fp(input_size % (4 * 6) == 0);
return (input_size / (4 * 6)) * 4;
}
static size_t get_block_size_hd(void *codec_info, size_t link_mtu) {
/* aptX HD compression ratio is 4:1 and we need to process one aptX HD frame (6 bytes) at once, plus aptX HD frames are encapsulated in RTP */
size_t rtp_size = sizeof(struct rtp_header);
@ -467,6 +474,15 @@ static size_t get_block_size_hd(void *codec_info, size_t link_mtu) {
return frame_count * 6 * 4;
}
static size_t get_encoded_block_size_hd(void *codec_info, size_t input_size) {
size_t rtp_size = sizeof(struct rtp_header);
/* input size should be aligned to codec input block size */
pa_assert_fp(input_size % (4 * 6) == 0);
return (input_size / (4 * 6)) * 6 + rtp_size;
}
static size_t reduce_encoder_bitrate(void *codec_info, size_t write_link_mtu) {
return 0;
}
@ -554,6 +570,7 @@ const pa_a2dp_codec pa_a2dp_codec_aptx = {
.reset = reset,
.get_read_block_size = get_block_size,
.get_write_block_size = get_block_size,
.get_encoded_block_size = get_encoded_block_size,
.reduce_encoder_bitrate = reduce_encoder_bitrate,
.encode_buffer = encode_buffer,
.decode_buffer = decode_buffer,
@ -575,6 +592,7 @@ const pa_a2dp_codec pa_a2dp_codec_aptx_hd = {
.reset = reset_hd,
.get_read_block_size = get_block_size_hd,
.get_write_block_size = get_block_size_hd,
.get_encoded_block_size = get_encoded_block_size_hd,
.reduce_encoder_bitrate = reduce_encoder_bitrate,
.encode_buffer = encode_buffer_hd,
.decode_buffer = decode_buffer_hd,