05d991a8c5
hamza
2026-02-26
Subject
rtsp: fix assertion failure on zero-length RTP payload
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lib/rtsp.c+12 -0
| @@ -774,6 +774,18 @@ static CURLcode rtsp_filter_rtp(struct Curl_easy *data, | |
| break; | |
| rtp_buf = curlx_dyn_ptr(&rtspc->buf); | |
| rtspc->rtp_len = RTP_PKT_LENGTH(rtp_buf) + 4; | |
| + | if(rtspc->rtp_len == 4) { |
| + | /* zero-length payload, the 4-byte header is the complete RTP |
| + | message. Dispatch immediately without entering RTP_PARSE_DATA. */ |
| + | DEBUGF(infof(data, "RTP write channel %d rtp_len %zu (no payload)", |
| + | rtspc->rtp_channel, rtspc->rtp_len)); |
| + | result = rtp_client_write(data, rtp_buf, rtspc->rtp_len); |
| + | curlx_dyn_free(&rtspc->buf); |
| + | rtspc->state = RTP_PARSE_SKIP; |
| + | if(result) |
| + | goto out; |
| + | break; |
| + | } |
| rtspc->state = RTP_PARSE_DATA; | |
| break; | |
| } | |