static ngx_int_t ngx_rtmp_record_node_close(ngx_rtmp_session_t *s, ngx_rtmp_record_rec_ctx_t *rctx) { ngx_rtmp_record_app_conf_t *rracf; ngx_err_t err; void **app_conf; ngx_int_t rc; ngx_rtmp_record_done_t v; rracf = rctx->conf; if (rctx->file.fd == NGX_INVALID_FILE) { return NGX_AGAIN; } if (ngx_close_file(rctx->file.fd) == NGX_FILE_ERROR) { err = ngx_errno; ngx_log_error(NGX_LOG_CRIT, s->connection->log, err, "record: %V error closing file", &rracf->id); ngx_rtmp_record_notify_error(s, rctx); } rctx->file.fd = NGX_INVALID_FILE; ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: %V closed", &rracf->id); if (rracf->notify) { ngx_rtmp_send_status(s, "NetStream.Record.Stop", "status", rracf->id.data ? (char *) rracf->id.data : ""); } app_conf = s->app_conf; if (rracf->rec_conf) { s->app_conf = rracf->rec_conf; } v.recorder = rracf->id; ngx_rtmp_record_make_path(s, rctx, &v.path); rc = ngx_rtmp_record_done(s, &v); s->app_conf = app_conf; return rc; }
static ngx_int_t ngx_rtmp_record_write_frame(ngx_rtmp_session_t *s, ngx_rtmp_record_rec_ctx_t *rctx, ngx_rtmp_header_t *h, ngx_chain_t *in, ngx_int_t inc_nframes) { u_char hdr[11], *p, *ph; uint32_t timestamp, tag_size; ngx_rtmp_record_app_conf_t *rracf; rracf = rctx->conf; ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: %V frame: mlen=%uD", &rracf->id, h->mlen); if (h->type == NGX_RTMP_MSG_VIDEO) { rctx->video = 1; } else { rctx->audio = 1; } timestamp = h->timestamp - rctx->epoch; if ((int32_t) timestamp < 0) { ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: %V cut timestamp=%D", &rracf->id, timestamp); timestamp = 0; } /* write tag header */ ph = hdr; *ph++ = (u_char)h->type; p = (u_char*)&h->mlen; *ph++ = p[2]; *ph++ = p[1]; *ph++ = p[0]; p = (u_char*)×tamp; *ph++ = p[2]; *ph++ = p[1]; *ph++ = p[0]; *ph++ = p[3]; *ph++ = 0; *ph++ = 0; *ph++ = 0; tag_size = (ph - hdr) + h->mlen; if (ngx_write_file(&rctx->file, hdr, ph - hdr, rctx->file.offset) == NGX_ERROR) { ngx_rtmp_record_notify_error(s, rctx); ngx_close_file(rctx->file.fd); return NGX_ERROR; } /* write tag body * FIXME: NGINX * ngx_write_chain seems to fit best * but it suffers from uncontrollable * allocations. * we're left with plain writing */ for(; in; in = in->next) { if (in->buf->pos == in->buf->last) { continue; } if (ngx_write_file(&rctx->file, in->buf->pos, in->buf->last - in->buf->pos, rctx->file.offset) == NGX_ERROR) { return NGX_ERROR; } } /* write tag size */ ph = hdr; p = (u_char*)&tag_size; *ph++ = p[3]; *ph++ = p[2]; *ph++ = p[1]; *ph++ = p[0]; if (ngx_write_file(&rctx->file, hdr, ph - hdr, rctx->file.offset) == NGX_ERROR) { return NGX_ERROR; } rctx->nframes += inc_nframes; /* watch max size */ if ((rracf->max_size && rctx->file.offset >= (ngx_int_t) rracf->max_size) || (rracf->max_frames && rctx->nframes >= rracf->max_frames)) { ngx_rtmp_record_node_close(s, rctx); } return NGX_OK; }
static ngx_int_t ngx_rtmp_record_node_open(ngx_rtmp_session_t *s, ngx_rtmp_record_rec_ctx_t *rctx) { ngx_rtmp_record_app_conf_t *rracf; ngx_rtmp_core_srv_conf_t *cscf; ngx_err_t err; ngx_str_t path; ngx_int_t mode, create_mode; u_char buf[8], *p; off_t file_size; uint32_t tag_size, mlen, timestamp; rracf = rctx->conf; tag_size = 0; if (rctx->file.fd != NGX_INVALID_FILE) { return NGX_AGAIN; } cscf = ngx_rtmp_get_module_srv_conf(s, ngx_rtmp_core_module); ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: %V opening", &rracf->id); ngx_memzero(rctx, sizeof(*rctx)); rctx->conf = rracf; rctx->last = *ngx_cached_time; rctx->timestamp = ngx_cached_time->sec; ngx_rtmp_record_make_path(s, rctx, &path); mode = rracf->append ? NGX_FILE_RDWR : NGX_FILE_WRONLY; create_mode = rracf->append ? NGX_FILE_CREATE_OR_OPEN : NGX_FILE_TRUNCATE; ngx_memzero(&rctx->file, sizeof(rctx->file)); rctx->file.offset = 0; rctx->file.log = s->connection->log; rctx->file.fd = ngx_open_file(path.data, mode, create_mode, cscf->file_access); ngx_str_set(&rctx->file.name, "recorded"); if (rctx->file.fd == NGX_INVALID_FILE) { err = ngx_errno; if (err != NGX_ENOENT) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, err, "record: %V failed to open file '%V'", &rracf->id, &path); } ngx_rtmp_record_notify_error(s, rctx); return NGX_OK; } #if !(NGX_WIN32) if (rracf->lock_file) { err = ngx_lock_fd(rctx->file.fd); if (err) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, err, "record: %V lock failed", &rracf->id); } } #endif ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: %V opened '%V'", &rracf->id, &path); if (rracf->notify) { ngx_rtmp_send_status(s, "NetStream.Record.Start", "status", rracf->id.data ? (char *) rracf->id.data : ""); } if (rracf->append) { file_size = 0; timestamp = 0; #if (NGX_WIN32) { LONG lo, hi; lo = 0; hi = 0; lo = SetFilePointer(rctx->file.fd, lo, &hi, FILE_END); file_size = (lo == INVALID_SET_FILE_POINTER ? (off_t) -1 : (off_t) hi << 32 | (off_t) lo); } #else file_size = lseek(rctx->file.fd, 0, SEEK_END); #endif if (file_size == (off_t) -1) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, ngx_errno, "record: %V seek failed", &rracf->id); goto done; } if (file_size < 4) { goto done; } if (ngx_read_file(&rctx->file, buf, 4, file_size - 4) != 4) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, ngx_errno, "record: %V tag size read failed", &rracf->id); goto done; } p = (u_char *) &tag_size; p[0] = buf[3]; p[1] = buf[2]; p[2] = buf[1]; p[3] = buf[0]; if (tag_size == 0 || tag_size + 4 > file_size) { file_size = 0; goto done; } if (ngx_read_file(&rctx->file, buf, 8, file_size - tag_size - 4) != 8) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, ngx_errno, "record: %V tag read failed", &rracf->id); goto done; } p = (u_char *) &mlen; p[0] = buf[3]; p[1] = buf[2]; p[2] = buf[1]; p[3] = 0; if (tag_size != mlen + 11) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, ngx_errno, "record: %V tag size mismatch: " "tag_size=%uD, mlen=%uD", &rracf->id, tag_size, mlen); goto done; } p = (u_char *) ×tamp; p[3] = buf[7]; p[0] = buf[6]; p[1] = buf[5]; p[2] = buf[4]; done: rctx->file.offset = file_size; rctx->time_shift = timestamp; ngx_log_debug3(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: append offset=%O, time=%uD, tag_size=%uD", file_size, timestamp, tag_size); } return NGX_OK; }
static ngx_int_t ngx_rtmp_record_node_open(ngx_rtmp_session_t *s, ngx_rtmp_record_rec_ctx_t *rctx) { ngx_rtmp_record_app_conf_t *rracf; ngx_err_t err; ngx_str_t path; rracf = rctx->conf; if (rctx->file.fd != NGX_INVALID_FILE) { return NGX_AGAIN; } ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: %V opening", &rracf->id); ngx_memzero(rctx, sizeof(*rctx)); rctx->conf = rracf; rctx->last = *ngx_cached_time; rctx->timestamp = ngx_cached_time->sec; ngx_rtmp_record_make_path(s, rctx, &path); ngx_memzero(&rctx->file, sizeof(rctx->file)); rctx->file.offset = 0; rctx->file.log = s->connection->log; rctx->file.fd = ngx_open_file(path.data, NGX_FILE_WRONLY, NGX_FILE_TRUNCATE, NGX_FILE_DEFAULT_ACCESS); if (rctx->file.fd == NGX_INVALID_FILE) { err = ngx_errno; if (err != NGX_ENOENT) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, err, "record: %V failed to open file '%V'", &rracf->id, &path); } ngx_rtmp_record_notify_error(s, rctx); return NGX_OK; } if (rracf->lock_file) { err = ngx_lock_fd(rctx->file.fd); if (err) { ngx_log_error(NGX_LOG_CRIT, s->connection->log, err, "record: %V lock failed", &rracf->id); } } ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0, "record: %V opened '%V'", &rracf->id, &path); if (rracf->notify) { ngx_rtmp_send_status(s, "NetStream.Record.Start", "status", rracf->id.data ? (char *) rracf->id.data : ""); } return NGX_OK; }