static int
vencoder_deinit(void *arg) {
int iid;
for(iid = 0; iid < video_source_channels(); iid++) {
if(_sps[iid] != NULL)
free(_sps[iid]);
if(_pps[iid] != NULL)
free(_pps[iid]);
#ifdef STANDALONE_SDP
if(vencoder_sdp[iid] != NULL)
ga_avcodec_close(vencoder_sdp[iid]);
#endif
if(vencoder[iid] != NULL)
ga_avcodec_close(vencoder[iid]);
#ifdef STANDALONE_SDP
vencoder_sdp[iid] = NULL;
#endif
vencoder[iid] = NULL;
}
bzero(_sps, sizeof(_sps));
bzero(_pps, sizeof(_pps));
bzero(_spslen, sizeof(_spslen));
bzero(_ppslen, sizeof(_ppslen));
vencoder_initialized = 0;
ga_error("video encoder: deinitialized.\n");
return 0;
}
static void
close_av(AVFormatContext *fctx, AVStream *st, AVCodecContext *cctx, enum RTSPLowerTransport transport) {
unsigned i;
//
if(cctx) {
ga_avcodec_close(cctx);
}
if(st && st->codec != NULL) {
if(st->codec != cctx) {
ga_avcodec_close(st->codec);
}
st->codec = NULL;
}
if(fctx) {
for(i = 0; i < fctx->nb_streams; i++) {
if(cctx != fctx->streams[i]->codec) {
if(fctx->streams[i]->codec)
ga_avcodec_close(fctx->streams[i]->codec);
} else {
cctx = NULL;
}
av_freep(&fctx->streams[i]->codec);
if(st == fctx->streams[i])
st = NULL;
av_freep(&fctx->streams[i]);
}
#ifdef HOLE_PUNCHING
// do nothing?
#else
if(transport==RTSP_LOWER_TRANSPORT_UDP && fctx->pb)
avio_close(fctx->pb);
#endif
av_free(fctx);
}
if(cctx != NULL)
av_free(cctx);
if(st != NULL)
av_free(st);
return;
}
void *
vencoder_threadproc(void *arg) {
// arg is pointer to source pipe
// image info
int iid;
int iwidth;
int iheight;
int rtp_id;
struct pooldata *data = NULL;
struct vsource_frame *frame = NULL;
pipeline *pipe = (pipeline*) arg;
AVCodecContext *encoder = NULL;
//
AVFrame *pic_in = NULL;
unsigned char *pic_in_buf = NULL;
int pic_in_size;
unsigned char *nalbuf = NULL, *nalbuf_a = NULL;
int nalbuf_size = 0, nalign = 0;
long long basePts = -1LL, newpts = 0LL, pts = -1LL, ptsSync = 0LL;
pthread_mutex_t condMutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
//
int resolution[2];
int video_written = 0;
//
if(pipe == NULL) {
ga_error("video encoder: NULL pipeline specified.\n");
goto video_quit;
}
//
rtspconf = rtspconf_global();
// init variables
iid = ((struct vsource_config*) pipe->get_privdata())->id;
iwidth = video_source_maxwidth(iid);
iheight = video_source_maxheight(iid);
rtp_id = ((struct vsource_config*) pipe->get_privdata())->rtp_id;
//
outputW = iwidth; // by default, the same as max resolution
outputH = iheight;
if(ga_conf_readints("output-resolution", resolution, 2) == 2) {
outputW = resolution[0];
outputH = resolution[1];
}
//
ga_error("video encoder: image source from '%s' (%dx%d) via channel %d, resolution=%dx%d.\n",
pipe->name(), iwidth, iheight, rtp_id, outputW, outputH);
//
encoder = ga_avcodec_vencoder_init(
NULL,
rtspconf->video_encoder_codec,
outputW, outputH,
rtspconf->video_fps,
rtspconf->vso);
if(encoder == NULL) {
ga_error("video encoder: cannot initialized the encoder.\n");
goto video_quit;
}
//
nalbuf_size = 100000+12 * outputW * outputH;
if(ga_malloc(nalbuf_size, (void**) &nalbuf, &nalign) < 0) {
ga_error("video encoder: buffer allocation failed, terminated.\n");
goto video_quit;
}
nalbuf_a = nalbuf + nalign;
//
if((pic_in = avcodec_alloc_frame()) == NULL) {
ga_error("video encoder: picture allocation failed, terminated.\n");
goto video_quit;
}
pic_in_size = avpicture_get_size(PIX_FMT_YUV420P, outputW, outputH);
if((pic_in_buf = (unsigned char*) av_malloc(pic_in_size)) == NULL) {
ga_error("video encoder: picture buffer allocation failed, terminated.\n");
goto video_quit;
}
avpicture_fill((AVPicture*) pic_in, pic_in_buf,
PIX_FMT_YUV420P, outputW, outputH);
//ga_error("video encoder: linesize = %d|%d|%d\n", pic_in->linesize[0], pic_in->linesize[1], pic_in->linesize[2]);
// start encoding
ga_error("video encoding started: tid=%ld %dx%d@%dfps, nalbuf_size=%d, pic_in_size=%d.\n",
ga_gettid(),
iwidth, iheight, rtspconf->video_fps,
nalbuf_size, pic_in_size);
//
pipe->client_register(ga_gettid(), &cond);
//
while(encoder_running() > 0) {
AVPacket pkt;
int got_packet = 0;
// wait for notification
data = pipe->load_data();
if(data == NULL) {
int err;
struct timeval tv;
struct timespec to;
gettimeofday(&tv, NULL);
to.tv_sec = tv.tv_sec+1;
to.tv_nsec = tv.tv_usec * 1000;
//
if((err = pipe->timedwait(&cond, &condMutex, &to)) != 0) {
ga_error("viedo encoder: image source timed out.\n");
continue;
}
data = pipe->load_data();
if(data == NULL) {
ga_error("viedo encoder: unexpected NULL frame received (from '%s', data=%d, buf=%d).\n",
pipe->name(), pipe->data_count(), pipe->buf_count());
continue;
}
}
frame = (struct vsource_frame*) data->ptr;
// handle pts
if(basePts == -1LL) {
basePts = frame->imgpts;
ptsSync = encoder_pts_sync(rtspconf->video_fps);
newpts = ptsSync;
} else {
newpts = ptsSync + frame->imgpts - basePts;
}
// XXX: assume always YUV420P
if(pic_in->linesize[0] == frame->linesize[0]
&& pic_in->linesize[1] == frame->linesize[1]
&& pic_in->linesize[2] == frame->linesize[2]) {
bcopy(frame->imgbuf, pic_in_buf, pic_in_size);
} else {
ga_error("video encoder: YUV mode failed - mismatched linesize(s) (src:%d,%d,%d; dst:%d,%d,%d)\n",
frame->linesize[0], frame->linesize[1], frame->linesize[2],
pic_in->linesize[0], pic_in->linesize[1], pic_in->linesize[2]);
pipe->release_data(data);
goto video_quit;
}
pipe->release_data(data);
// pts must be monotonically increasing
if(newpts > pts) {
pts = newpts;
} else {
pts++;
}
// encode
pic_in->pts = pts;
av_init_packet(&pkt);
pkt.data = nalbuf_a;
pkt.size = nalbuf_size;
if(avcodec_encode_video2(encoder, &pkt, pic_in, &got_packet) < 0) {
ga_error("video encoder: encode failed, terminated.\n");
goto video_quit;
}
if(got_packet) {
if(pkt.pts == (int64_t) AV_NOPTS_VALUE) {
pkt.pts = pts;
}
pkt.stream_index = 0;
// send the packet
if(encoder_send_packet_all("video-encoder",
rtp_id/*rtspconf->video_id*/, &pkt,
pkt.pts) < 0) {
goto video_quit;
}
// free unused side-data
if(pkt.side_data_elems > 0) {
int i;
for (i = 0; i < pkt.side_data_elems; i++)
av_free(pkt.side_data[i].data);
av_freep(&pkt.side_data);
pkt.side_data_elems = 0;
}
//
if(video_written == 0) {
video_written = 1;
ga_error("first video frame written (pts=%lld)\n", pts);
}
}
}
//
video_quit:
if(pipe) {
pipe->client_unregister(ga_gettid());
pipe = NULL;
}
//
if(pic_in_buf) av_free(pic_in_buf);
if(pic_in) av_free(pic_in);
if(nalbuf) free(nalbuf);
if(encoder) ga_avcodec_close(encoder);
//
ga_error("video encoder: thread terminated (tid=%ld).\n", ga_gettid());
//
return NULL;
}
