rtpdec_asf: Handle RTSP-MS packet splitting
Originally committed as revision 24389 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -168,12 +168,18 @@ static int asfrtp_parse_packet(AVFormatContext *s, PayloadContext *asf,
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return -1;
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if (len > 0) {
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int off, out_len;
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int off, out_len = 0;
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if (len < 4)
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return -1;
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av_freep(&asf->buf);
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init_put_byte(pb, buf, len, 0, NULL, NULL, NULL, NULL);
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while (url_ftell(pb) + 4 < len) {
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int start_off = url_ftell(pb);
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mflags = get_byte(pb);
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if (mflags & 0x80)
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flags |= RTP_FLAG_KEY;
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@ -186,7 +192,6 @@ static int asfrtp_parse_packet(AVFormatContext *s, PayloadContext *asf,
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url_fskip(pb, 4);
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off = url_ftell(pb);
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av_freep(&asf->buf);
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if (!(mflags & 0x40)) {
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/**
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* If 0x40 is not set, the len_off field specifies an offset of this
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@ -206,6 +211,7 @@ static int asfrtp_parse_packet(AVFormatContext *s, PayloadContext *asf,
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return AVERROR(EIO);
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put_buffer(asf->pktbuf, buf + off, len - off);
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url_fskip(pb, len - off);
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if (!(flags & RTP_FLAG_MARKER))
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return -1;
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out_len = url_close_dyn_buf(asf->pktbuf, &asf->buf);
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@ -218,14 +224,14 @@ static int asfrtp_parse_packet(AVFormatContext *s, PayloadContext *asf,
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* less in case of packet splitting (i.e. multiple ASF packets in
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* one RTP packet).
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*/
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if (len_off != len) {
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av_log_missing_feature(s,
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"RTSP-MS packet splitting", 1);
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return -1;
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}
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asf->buf = av_malloc(len - off);
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out_len = len - off;
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memcpy(asf->buf, buf + off, len - off);
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int cur_len = start_off + len_off - off;
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int prev_len = out_len;
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out_len += cur_len;
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asf->buf = av_realloc(asf->buf, out_len);
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memcpy(asf->buf + prev_len, buf + off, cur_len);
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url_fskip(pb, cur_len);
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}
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}
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init_packetizer(pb, asf->buf, out_len);
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