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rtpdec: Identify incorrectly signalled H263

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H263 in RTP can be packetized in two formats (RFC 2190, RFC
2429/4629). The former normally uses the static payload type 34,
while the latter normally uses dynamic payload types with the
SDP format names H263-1998 or H263-2000.

Look for packets that don't look like proper RFC 2190 packets and
switch to depacketizing them according to the new format if they
match some heuristic criteria.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
2012-02-17 10:27:41 +02:00
parent b1af4e9c27
commit c7e8639c70
3 changed files with 32 additions and 10 deletions
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4
libavformat/rtpdec_formats.h
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@@ -31,6 +31,10 @@
*/
int ff_wms_parse_sdp_a_line(AVFormatContext *s, const char *p);
int ff_h263_handle_packet(AVFormatContext *ctx, PayloadContext *data,
AVStream *st, AVPacket *pkt, uint32_t *timestamp,
const uint8_t *buf, int len, int flags);
extern RTPDynamicProtocolHandler ff_amr_nb_dynamic_handler;
extern RTPDynamicProtocolHandler ff_amr_wb_dynamic_handler;
extern RTPDynamicProtocolHandler ff_g726_16_dynamic_handler;