diff options
Diffstat (limited to 'pjmedia')
| -rw-r--r-- | pjmedia/src/pjmedia/stream.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/pjmedia/src/pjmedia/stream.c b/pjmedia/src/pjmedia/stream.c index ba883344..83fecf23 100644 --- a/pjmedia/src/pjmedia/stream.c +++ b/pjmedia/src/pjmedia/stream.c @@ -140,11 +140,6 @@ static const char digitmap[16] = { '0', '1', '2', '3', '8', '9', '*', '#', 'A', 'B', 'C', 'D'}; -/* Zero PCM frame */ -#define ZERO_PCM_MAX_SIZE 1920 /* 40ms worth of PCM @ 48KHz */ -static pj_int16_t zero_frame[ZERO_PCM_MAX_SIZE]; - - /* * Print error. */ @@ -573,7 +568,12 @@ static pj_status_t put_frame_imp( pjmedia_port *port, inc_timestamp = PJMEDIA_DTMF_DURATION - ts_len; } - } else if (frame->type != PJMEDIA_FRAME_TYPE_NONE) { + /* No need to encode if this is a zero frame. + * See http://www.pjsip.org/trac/ticket/439 + */ + } else if (frame->type != PJMEDIA_FRAME_TYPE_NONE && + frame->buf != NULL) + { unsigned ts, codec_samples_per_frame; /* Repeatedly call encode if there are multiple frames to be @@ -729,13 +729,11 @@ static pj_status_t put_frame( pjmedia_port *port, * instead so that encoder can decide whether or not to transmit * silence frame. */ - if (frame->type == PJMEDIA_FRAME_TYPE_NONE && - samples_per_frame <= ZERO_PCM_MAX_SIZE) - { + if (frame->type == PJMEDIA_FRAME_TYPE_NONE) { pj_memcpy(&tmp_zero_frame, frame, sizeof(pjmedia_frame)); frame = &tmp_zero_frame; - tmp_zero_frame.buf = zero_frame; + tmp_zero_frame.buf = NULL; tmp_zero_frame.size = samples_per_frame * 2; tmp_zero_frame.type = PJMEDIA_FRAME_TYPE_AUDIO; } @@ -755,7 +753,7 @@ static pj_status_t put_frame( pjmedia_port *port, pj_memcpy(&tmp_in_frame, frame, sizeof(pjmedia_frame)); frame = &tmp_in_frame; - tmp_in_frame.buf = zero_frame; + tmp_in_frame.buf = NULL; tmp_in_frame.size = samples_per_frame * 2; tmp_in_frame.type = PJMEDIA_FRAME_TYPE_AUDIO; } |