CAvConfigBase* CAvConfigManager::NameToConfClass(const char *name)
{
std::map<std::string, CAvConfigBase*>::iterator it = m_config_name_confclass.find(name);
if (it != m_config_name_confclass.end()) {
return (*it).second;
} else {
av_error("NameToConfClass failed name[%s].\n", name);
}
return NULL;
}
const char* CAvConfigManager::IdToName(int id)
{
std::map<int, std::string>::iterator it = m_config_id_name.find(id);
if(it != m_config_id_name.end()) {
return (*it).second.c_str();
} else {
av_error("IdToName failed id = %d.\n", id);
return NULL;
}
}
// call->master_lock held in W
int media_player_play_blob(struct media_player *mp, const str *blob) {
#ifdef WITH_TRANSCODING
const char *err;
int av_ret = 0;
if (media_player_play_init(mp))
return -1;
mp->blob = str_dup(blob);
err = "out of memory";
if (!mp->blob)
goto err;
mp->read_pos = *mp->blob;
err = "could not allocate AVFormatContext";
mp->fmtctx = avformat_alloc_context();
if (!mp->fmtctx)
goto err;
void *avio_buf = av_malloc(DEFAULT_AVIO_BUFSIZE);
err = "failed to allocate AVIO buffer";
if (!avio_buf)
goto err;
mp->avioctx = avio_alloc_context(avio_buf, DEFAULT_AVIO_BUFSIZE, 0, mp, __mp_avio_read,
NULL, __mp_avio_seek);
err = "failed to allocate AVIOContext";
if (!mp->avioctx)
goto err;
mp->fmtctx->pb = mp->avioctx;
// consumes allocated mp->fmtctx
err = "failed to open AVFormatContext input";
av_ret = avformat_open_input(&mp->fmtctx, "dummy", NULL, NULL);
if (av_ret < 0)
goto err;
media_player_play_start(mp);
return 0;
err:
ilog(LOG_ERR, "Failed to start media playback from memory: %s", err);
if (av_ret)
ilog(LOG_ERR, "Error returned from libav: %s", av_error(av_ret));
#endif
return -1;
}
av_bool CAvConfigManager::LoadConfigFromFile(const char *path, std::string &conf)
{
FILE *fp = fopen(path, "r");
if (NULL == fp) {
av_error("%s open fail\n", path);
return av_false;
}
conf.clear();
char * tmp = new char[12 * 1024 + 1];
int len = 0;
while (!feof(fp)) {
len = fread(tmp, sizeof(char), 12 * 1024, fp);
//conf += tmp;
conf.append(tmp, len);
}
delete[]tmp;
fclose(fp);
return av_true;
}
void CAvConfigManager::Initialize()
{
m_timer = new TimerConfManager();
m_change = av_false;
m_config_data.reserve(512 * 1024);
AvConfigReader reader;
bool load_flag = false;
std::string ConfigPath;
av_bool abRet = CAvDevice::GetEnv(std::string(EKey_ConfigsPath), ConfigPath);
if (abRet == av_true){
SetAvConfigPath(ConfigPath);
}
if (av_true == LoadConfigFromFile(m_ConfigFullPatch.c_str(), m_config_data)){
load_flag = reader.parse(m_config_data, m_total);
}
if (false == load_flag) {
av_msg("Load Configfile1 failed\n");
if (av_true == LoadConfigFromFile(m_ConfigFullPatchBu.c_str(), m_config_data)){
load_flag = reader.parse(m_config_data, m_total);
}
}
if (false == load_flag){
av_error("Load all config file failed\n");
}
m_name_configIndex.clear();
m_name_configIndex.insert(ConfIndexValueType("DeviceUart", CONF_DEVICE_UART));
LoadConfig("DeviceUart", m_config_device_uart);
m_name_configIndex.insert(ConfIndexValueType("Capture", CONF_CAPTURE_FORMATS));
LoadConfig("Capture", m_ConfigCapture);
m_name_configIndex.insert(ConfIndexValueType("Image", CONF_IMAGE_FORMATS));
LoadConfig("Image", m_ConfigImage);
m_name_configIndex.insert(ConfIndexValueType("Enocde", CONF_ENCODE_FORMATS));
LoadConfig("Enocde", m_ConfigEncode);
m_name_configIndex.insert(ConfIndexValueType("Cover", CONF_ENCODE_COVER));
LoadConfig("Cover", m_ConfigCover);
m_name_configIndex.insert(ConfIndexValueType("WaterMarking", CONF_ENCODE_WATERMARKING));
LoadConfig("WaterMarking", m_ConfigWaterMark);
m_name_configIndex.insert(ConfIndexValueType("AlarmIo", CONF_ALARM_IO));
LoadConfig("AlarmIo", m_ConfigAlarmIo);
m_name_configIndex.insert(ConfIndexValueType("AlarmMd", CONF_ALARM_MD));
LoadConfig("AlarmMd", m_ConfigAlarmMd);
m_name_configIndex.insert(ConfIndexValueType("NetComm", CONF_NET_COMM));
LoadConfig("NetComm", m_ConfigNetComm);
m_name_configIndex.insert(ConfIndexValueType("NetProtocol", CONF_NETPROTOCOL));
LoadConfig("NetProtocol", m_ConfigNetProtocol);
m_name_configIndex.insert(ConfIndexValueType("Audio", CONF_AUDIO));
LoadConfig("Audio", m_ConfigAudio);
//User Manager
m_name_configIndex.insert(ConfIndexValueType("UserManager", CONF_USER_MANAGER));
LoadConfig("UserManager", m_config_user_manager);
//Net Server Email
m_name_configIndex.insert(ConfIndexValueType("NetServerSmtp", CONF_NET_SER_EMAIL));
LoadConfig("NetServerSmtp", m_confignet_smtp);
//ftp
m_name_configIndex.insert(ConfIndexValueType("NetServerFtp", CONF_NET_SER_FTP));
LoadConfig("NetServerFtp", m_confignet_ftp);
m_name_configIndex.insert(ConfIndexValueType("NetServerDdns", CONF_NET_SER_DDNS));
LoadConfig("NetServerDdns", m_confignet_ddns);
m_name_configIndex.insert(ConfIndexValueType("NetServerUpnp", CONF_NET_SER_UPNP));
LoadConfig("NetServerUpnp", m_confignet_upnp);
m_name_configIndex.insert(ConfIndexValueType("NetServerNtp", CONF_NET_SER_NTP));
LoadConfig("NetServerNtp", m_confignet_ntp);
if (false == load_flag){
Save();
}
}
static int __ensure_codec_handler(struct media_player *mp, AVStream *avs) {
if (mp->handler)
return 0;
// synthesise rtp payload type
struct rtp_payload_type src_pt = { .payload_type = -1 };
// src_pt.codec_def = codec_find_by_av(avs->codec->codec_id); `codec` is deprecated
src_pt.codec_def = codec_find_by_av(avs->CODECPAR->codec_id);
if (!src_pt.codec_def) {
ilog(LOG_ERR, "Attempting to play media from an unsupported file format/codec");
return -1;
}
src_pt.encoding = src_pt.codec_def->rtpname_str;
src_pt.channels = avs->CODECPAR->channels;
src_pt.clock_rate = avs->CODECPAR->sample_rate;
codec_init_payload_type(&src_pt, mp->media);
// find suitable output payload type
struct rtp_payload_type *dst_pt;
for (GList *l = mp->media->codecs_prefs_send.head; l; l = l->next) {
dst_pt = l->data;
if (dst_pt->codec_def && !dst_pt->codec_def->supplemental)
goto found;
}
dst_pt = NULL;
found:
if (!dst_pt) {
ilog(LOG_ERR, "No supported output codec found in SDP");
return -1;
}
ilog(LOG_DEBUG, "Output codec for media playback is " STR_FORMAT,
STR_FMT(&dst_pt->encoding_with_params));
// if we played anything before, scale our sync TS according to the time
// that has passed
if (mp->sync_ts_tv.tv_sec) {
long long ts_diff_us = timeval_diff(&rtpe_now, &mp->sync_ts_tv);
mp->sync_ts += ts_diff_us * dst_pt->clock_rate / 1000000 / dst_pt->codec_def->clockrate_mult;
}
mp->handler = codec_handler_make_playback(&src_pt, dst_pt, mp->sync_ts);
if (!mp->handler)
return -1;
mp->duration = avs->duration * 1000 * avs->time_base.num / avs->time_base.den;
return 0;
}
// appropriate lock must be held
static void media_player_read_packet(struct media_player *mp) {
if (!mp->fmtctx)
return;
int ret = av_read_frame(mp->fmtctx, &mp->pkt);
if (ret < 0) {
if (ret == AVERROR_EOF) {
ilog(LOG_DEBUG, "EOF reading from media stream");
return;
}
ilog(LOG_ERR, "Error while reading from media stream");
return;
}
if (!mp->fmtctx->streams) {
ilog(LOG_ERR, "No AVStream present in format context");
goto out;
}
AVStream *avs = mp->fmtctx->streams[0];
if (!avs) {
ilog(LOG_ERR, "No AVStream present in format context");
goto out;
}
if (__ensure_codec_handler(mp, avs))
goto out;
// scale pts and duration according to sample rate
long long duration_scaled = mp->pkt.duration * avs->CODECPAR->sample_rate
* avs->time_base.num / avs->time_base.den;
unsigned long long pts_scaled = mp->pkt.pts * avs->CODECPAR->sample_rate
* avs->time_base.num / avs->time_base.den;
long long us_dur = mp->pkt.duration * 1000000LL * avs->time_base.num / avs->time_base.den;
ilog(LOG_DEBUG, "read media packet: pts %llu duration %lli (scaled %llu/%lli, %lli us), "
"sample rate %i, time_base %i/%i",
(unsigned long long) mp->pkt.pts,
(long long) mp->pkt.duration,
pts_scaled,
duration_scaled,
us_dur,
avs->CODECPAR->sample_rate,
avs->time_base.num, avs->time_base.den);
// synthesise fake RTP header and media_packet context
struct rtp_header rtp = {
.timestamp = pts_scaled, // taken verbatim by handler_func_playback w/o byte swap
.seq_num = htons(mp->seq),
};
struct media_packet packet = {
.tv = rtpe_now,
.call = mp->call,
.media = mp->media,
.rtp = &rtp,
.ssrc_out = mp->ssrc_out,
};
str_init_len(&packet.raw, (char *) mp->pkt.data, mp->pkt.size);
packet.payload = packet.raw;
mp->handler->func(mp->handler, &packet);
// as this is timing sensitive and we may have spent some time decoding,
// update our global "now" timestamp
gettimeofday(&rtpe_now, NULL);
// keep track of RTP timestamps and real clock. look at the last packet we received
// and update our sync TS.
if (packet.packets_out.head) {
struct codec_packet *p = packet.packets_out.head->data;
if (p->rtp) {
mp->sync_ts = ntohl(p->rtp->timestamp);
mp->sync_ts_tv = p->to_send;
}
}
media_packet_encrypt(mp->crypt_handler->out->rtp_crypt, mp->sink, &packet);
mutex_lock(&mp->sink->out_lock);
if (media_socket_dequeue(&packet, mp->sink))
ilog(LOG_ERR, "Error sending playback media to RTP sink");
mutex_unlock(&mp->sink->out_lock);
timeval_add_usec(&mp->next_run, us_dur);
timerthread_obj_schedule_abs(&mp->tt_obj, &mp->next_run);
out:
av_packet_unref(&mp->pkt);
}
// call->master_lock held in W
static int media_player_play_init(struct media_player *mp) {
media_player_shutdown(mp);
// find call media suitable for playback
struct call_media *media;
for (GList *l = mp->ml->medias.head; l; l = l->next) {
media = l->data;
if (media->type_id != MT_AUDIO)
continue;
if (!MEDIA_ISSET(media, SEND))
continue;
if (media->streams.length == 0)
continue;
goto found;
}
media = NULL;
found:
if (!media) {
ilog(LOG_ERR, "No suitable SDP section for media playback");
return -1;
}
mp->media = media;
mp->sink = media->streams.head->data;
mp->crypt_handler = determine_handler(&transport_protocols[PROTO_RTP_AVP], media, 1);
return 0;
}
// call->master_lock held in W
static void media_player_play_start(struct media_player *mp) {
// needed to have usable duration for some formats. ignore errors.
avformat_find_stream_info(mp->fmtctx, NULL);
mp->next_run = rtpe_now;
// give ourselves a bit of a head start with decoding
timeval_add_usec(&mp->next_run, -50000);
media_player_read_packet(mp);
}
#endif
// call->master_lock held in W
int media_player_play_file(struct media_player *mp, const str *file) {
#ifdef WITH_TRANSCODING
if (media_player_play_init(mp))
return -1;
char file_s[PATH_MAX];
snprintf(file_s, sizeof(file_s), STR_FORMAT, STR_FMT(file));
int ret = avformat_open_input(&mp->fmtctx, file_s, NULL, NULL);
if (ret < 0) {
ilog(LOG_ERR, "Failed to open media file for playback: %s", av_error(ret));
return -1;
}
media_player_play_start(mp);
return 0;
#else
return -1;
#endif
}
#ifdef WITH_TRANSCODING
static int __mp_avio_read_wrap(void *opaque, uint8_t *buf, int buf_size) {
struct media_player *mp = opaque;
if (buf_size < 0)
return AVERROR(EINVAL);
if (buf_size == 0)
return 0;
if (!mp->read_pos.len)
return AVERROR_EOF;
int len = buf_size;
if (len > mp->read_pos.len)
len = mp->read_pos.len;
memcpy(buf, mp->read_pos.s, len);
str_shift(&mp->read_pos, len);
return len;
}
static int __mp_avio_read(void *opaque, uint8_t *buf, int buf_size) {
ilog(LOG_DEBUG, "__mp_avio_read(%i)", buf_size);
int ret = __mp_avio_read_wrap(opaque, buf, buf_size);
ilog(LOG_DEBUG, "__mp_avio_read(%i) = %i", buf_size, ret);
return ret;
}
AVFrame *resample_frame(resample_t *resample, AVFrame *frame, const format_t *to_format) {
const char *err;
int errcode = 0;
uint64_t to_channel_layout = av_get_default_channel_layout(to_format->channels);
fix_frame_channel_layout(frame);
if (frame->format != to_format->format)
goto resample;
if (frame->sample_rate != to_format->clockrate)
goto resample;
if (frame->channel_layout != to_channel_layout)
goto resample;
return av_frame_clone(frame);
resample:
if (G_UNLIKELY(!resample->swresample)) {
resample->swresample = swr_alloc_set_opts(NULL,
to_channel_layout,
to_format->format,
to_format->clockrate,
frame->channel_layout,
frame->format,
frame->sample_rate,
0, NULL);
err = "failed to alloc resample context";
if (!resample->swresample)
goto err;
err = "failed to init resample context";
if ((errcode = swr_init(resample->swresample)) < 0)
goto err;
}
// get a large enough buffer for resampled audio - this should be enough so we don't
// have to loop
int dst_samples = av_rescale_rnd(swr_get_delay(resample->swresample, to_format->clockrate)
+ frame->nb_samples,
to_format->clockrate, frame->sample_rate, AV_ROUND_UP);
AVFrame *swr_frame = av_frame_alloc();
err = "failed to alloc resampling frame";
if (!swr_frame)
goto err;
av_frame_copy_props(swr_frame, frame);
swr_frame->format = to_format->format;
swr_frame->channel_layout = to_channel_layout;
swr_frame->nb_samples = dst_samples;
swr_frame->sample_rate = to_format->clockrate;
err = "failed to get resample buffers";
if ((errcode = av_frame_get_buffer(swr_frame, 0)) < 0)
goto err;
int ret_samples = swr_convert(resample->swresample, swr_frame->extended_data,
dst_samples,
(const uint8_t **) frame->extended_data,
frame->nb_samples);
err = "failed to resample audio";
if ((errcode = ret_samples) < 0)
goto err;
swr_frame->nb_samples = ret_samples;
swr_frame->pts = av_rescale(frame->pts, to_format->clockrate, frame->sample_rate);
return swr_frame;
err:
if (errcode)
ilog(LOG_ERR, "Error resampling: %s (%s)", err, av_error(errcode));
else
ilog(LOG_ERR, "Error resampling: %s", err);
resample_shutdown(resample);
return NULL;
}
