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a2dp: improve a2dp sink codec data flushing

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Let codec decides when rtp packet need to be sent (terminated by MTU size in most case).
LDAC encoding loop can now be terminated by reading if frame_num is written, no 'frame_count' updating is needed.
RTP payload fragmentation can now be implemented more easily based on this.
This commit is contained in:
Huang-Huang Bao 2021-03-31 17:50:15 +08:00 • committed by Wim Taymans
parent 7b9792ffab
commit 5c93f780cf
6 changed files with 56 additions and 170 deletions
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9
spa/plugins/bluez5/a2dp-codec-aac.c
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@ -377,11 +377,6 @@ static void codec_deinit(void *data)
free(this);
}
static int codec_get_num_blocks(void *data)
{
return 1;
}
static int codec_get_block_size(void *data)
{
struct impl *this = data;
@ -407,7 +402,7 @@ static int codec_start_encode (void *data,
static int codec_encode(void *data,
const void *src, size_t src_size,
void *dst, size_t dst_size,
size_t *dst_out)
size_t *dst_out, int *need_flush)
{
struct impl *this = data;
int res;
@ -445,6 +440,7 @@ static int codec_encode(void *data,
return -EINVAL;
*dst_out = out_args.numOutBytes;
*need_flush = 1;
return out_args.numInSamples * this->samplesize;
}
@ -498,7 +494,6 @@ const struct a2dp_codec a2dp_codec_aac = {
.init = codec_init,
.deinit = codec_deinit,
.get_block_size = codec_get_block_size,
.get_num_blocks = codec_get_num_blocks,
.start_encode = codec_start_encode,
.encode = codec_encode,
.abr_process = codec_abr_process,