---
android/hal-audio.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/android/hal-audio.c b/android/hal-audio.c
index ff42136..efdf823 100644
--- a/android/hal-audio.c
+++ b/android/hal-audio.c
@@ -133,6 +133,7 @@ struct sbc_data {
struct timespec start;
unsigned frames_sent;
+ uint32_t timestamp;
uint16_t seq;
};
@@ -404,6 +405,7 @@ static void sbc_resume(void *codec_data)
clock_gettime(CLOCK_MONOTONIC, &sbc_data->start);
sbc_data->frames_sent = 0;
+ sbc_data->timestamp = 0;
}
static int write_media_packet(int fd, struct sbc_data *sbc_data,
@@ -455,31 +457,38 @@ static ssize_t sbc_write_data(void *codec_data, const void *buffer,
struct media_packet *mp = (struct media_packet *) sbc_data->out_buf;
size_t free_space = sbc_data->out_buf_size - sizeof(*mp);
int ret;
+ ssize_t bytes_read;
mp->hdr.v = 2;
mp->hdr.pt = 1;
mp->hdr.ssrc = htonl(1);
+ mp->hdr.timestamp = htonl(sbc_data->timestamp);
mp->payload.frame_count = 0;
while (bytes - consumed >= sbc_data->in_frame_len) {
ssize_t written = 0;
- ret = sbc_encode(&sbc_data->enc, buffer + consumed,
+ bytes_read = sbc_encode(&sbc_data->enc, buffer + consumed,
sbc_data->in_frame_len,
mp->data + encoded, free_space,
&written);
- if (ret < 0) {
+ if (bytes_read < 0) {
error("SBC: failed to encode block (%zd)", bytes_read);
break;
}
mp->payload.frame_count++;
- consumed += ret;
+ consumed += bytes_read;
encoded += written;
free_space -= written;
+ /* AudioFlinger provides PCM 16bit stereo only, thus sample size
+ * is always 4 bytes
+ */
+ sbc_data->timestamp += (bytes_read / 4);
+
/* write data if we either filled media packed or encoded all
* input data
*/
@@ -495,6 +504,7 @@ static ssize_t sbc_write_data(void *codec_data, const void *buffer,
encoded = 0;
free_space = sbc_data->out_buf_size - sizeof(*mp);
+ mp->hdr.timestamp = htonl(sbc_data->timestamp);
mp->payload.frame_count = 0;
}
}
--
1.8.5.3
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