static int tee_write_header(AVFormatContext *avf)
{
TeeContext *tee = avf->priv_data;
unsigned nb_slaves = 0, i;
const char *filename = avf->filename;
char **slaves = NULL;
int ret;
while (*filename) {
char *slave = av_get_token(&filename, slave_delim);
if (!slave) {
ret = AVERROR(ENOMEM);
goto fail;
}
ret = av_dynarray_add_nofree(&slaves, &nb_slaves, slave);
if (ret < 0) {
av_free(slave);
goto fail;
}
if (strspn(filename, slave_delim))
filename++;
}
if (!(tee->slaves = av_mallocz_array(nb_slaves, sizeof(*tee->slaves)))) {
ret = AVERROR(ENOMEM);
goto fail;
}
tee->nb_slaves = tee->nb_alive = nb_slaves;
for (i = 0; i < nb_slaves; i++) {
if ((ret = open_slave(avf, slaves[i], &tee->slaves[i])) < 0) {
ret = tee_process_slave_failure(avf, i, ret);
if (ret < 0)
goto fail;
} else {
log_slave(&tee->slaves[i], avf, AV_LOG_VERBOSE);
}
av_freep(&slaves[i]);
}
for (i = 0; i < avf->nb_streams; i++) {
int j, mapped = 0;
for (j = 0; j < tee->nb_slaves; j++)
if (tee->slaves[j].avf)
mapped += tee->slaves[j].stream_map[i] >= 0;
if (!mapped)
av_log(avf, AV_LOG_WARNING, "Input stream #%d is not mapped "
"to any slave.\n", i);
}
av_free(slaves);
return 0;
fail:
for (i = 0; i < nb_slaves; i++)
av_freep(&slaves[i]);
close_slaves(avf);
av_free(slaves);
return ret;
}
static int tee_write_trailer(AVFormatContext *avf)
{
TeeContext *tee = avf->priv_data;
int ret_all = 0, ret;
unsigned i;
for (i = 0; i < tee->nb_slaves; i++) {
if ((ret = close_slave(&tee->slaves[i])) < 0) {
ret = tee_process_slave_failure(avf, i, ret);
if (!ret_all && ret < 0)
ret_all = ret;
}
}
av_freep(&tee->slaves);
return ret_all;
}
static int tee_write_packet(AVFormatContext *avf, AVPacket *pkt)
{
TeeContext *tee = avf->priv_data;
AVFormatContext *avf2;
AVPacket pkt2;
int ret_all = 0, ret;
unsigned i, s;
int s2;
AVRational tb, tb2;
for (i = 0; i < tee->nb_slaves; i++) {
if (!(avf2 = tee->slaves[i].avf))
continue;
s = pkt->stream_index;
s2 = tee->slaves[i].stream_map[s];
if (s2 < 0)
continue;
memset(&pkt2, 0, sizeof(AVPacket));
if ((ret = av_packet_ref(&pkt2, pkt)) < 0)
if (!ret_all) {
ret_all = ret;
continue;
}
tb = avf ->streams[s ]->time_base;
tb2 = avf2->streams[s2]->time_base;
pkt2.pts = av_rescale_q(pkt->pts, tb, tb2);
pkt2.dts = av_rescale_q(pkt->dts, tb, tb2);
pkt2.duration = av_rescale_q(pkt->duration, tb, tb2);
pkt2.stream_index = s2;
if ((ret = av_apply_bitstream_filters(avf2->streams[s2]->codec, &pkt2,
tee->slaves[i].bsfs[s2])) < 0 ||
(ret = av_interleaved_write_frame(avf2, &pkt2)) < 0) {
ret = tee_process_slave_failure(avf, i, ret);
if (!ret_all && ret < 0)
ret_all = ret;
}
}
return ret_all;
}
static int tee_write_packet(AVFormatContext *avf, AVPacket *pkt)
{
TeeContext *tee = avf->priv_data;
AVFormatContext *avf2;
AVBSFContext *bsfs;
AVPacket pkt2;
int ret_all = 0, ret;
unsigned i, s;
int s2;
for (i = 0; i < tee->nb_slaves; i++) {
if (!(avf2 = tee->slaves[i].avf))
continue;
/* Flush slave if pkt is NULL*/
if (!pkt) {
ret = av_interleaved_write_frame(avf2, NULL);
if (ret < 0) {
ret = tee_process_slave_failure(avf, i, ret);
if (!ret_all && ret < 0)
ret_all = ret;
}
continue;
}
s = pkt->stream_index;
s2 = tee->slaves[i].stream_map[s];
if (s2 < 0)
continue;
memset(&pkt2, 0, sizeof(AVPacket));
if ((ret = av_packet_ref(&pkt2, pkt)) < 0)
if (!ret_all) {
ret_all = ret;
continue;
}
bsfs = tee->slaves[i].bsfs[s2];
pkt2.stream_index = s2;
ret = av_bsf_send_packet(bsfs, &pkt2);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR, "Error while sending packet to bitstream filter: %s\n",
av_err2str(ret));
ret = tee_process_slave_failure(avf, i, ret);
if (!ret_all && ret < 0)
ret_all = ret;
}
while(1) {
ret = av_bsf_receive_packet(bsfs, &pkt2);
if (ret == AVERROR(EAGAIN)) {
ret = 0;
break;
} else if (ret < 0) {
break;
}
av_packet_rescale_ts(&pkt2, bsfs->time_base_out,
avf2->streams[s2]->time_base);
ret = av_interleaved_write_frame(avf2, &pkt2);
if (ret < 0)
break;
};
if (ret < 0) {
ret = tee_process_slave_failure(avf, i, ret);
if (!ret_all && ret < 0)
ret_all = ret;
}
}
return ret_all;
}