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* avcodec/bsf: make sure the AVBSFInternal stored packet is reference countedJames Almer2018-03-23
| | | | | | | | | | | | | | | | | | Some bitstream filters may buffer said packet in their own contexts for latter use. The documentation for av_bsf_send_packet() doesn't forbid feeding it non-reference counted packets, which depending on the way said packets were internally buffered by the bsf it may result in the data described in them becoming invalid or unavailable at any time. This was the case with vp9_superframe after commit e1bc3f4396, which was then promptly fixed in 37f4a093f7 and 7a02b364b6. It is still the case even today with vp9_reorder_raw. With this change the bitstream filters will not have to worry how to store or consume the packets fed to them. Reviewed-by: wm4 <nfxjfg@googlemail.com> Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/bsf: Check for packet payload when setting BSF EOF flag.Jan Sebechlebsky2017-04-22
| | | | | | | | Set BSF EOF flag only if pkt == NULL or both data and side data are not present in packet. Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
* Revert "avcodec/bsf: Forbid packet without payload in av_bsf_send_packet"James Almer2017-04-22
| | | | | | | | | This reverts commit bfdca87ab55c7f69087d962dc47aa45c8c6436fb. Packets with no data or side data will be valid EOF signal in an upcoming merge. Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/bsf: fix resource leak in av_bsf_list_parse_strSteven Liu2017-01-11
| | | | | | | | cid: 1396268 when av_strdup(str) error, the lst need release Reviewed-by: James Almer <jamrial@gmail.com> Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
* avcodec/bsf: Fix av_bsf_list_free()Michael Niedermayer2017-01-08
| | | | | | | Negate null check Fixes CID1396248 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* libavcodec/bsfs: Fix bsf option settingJan Sebechlebsky2016-08-26
| | | | | | | | AV_OPT_SEARCH_CHILDREN flag must be passed to av_opt_set_dict() to set options for private context. Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/bsf: Add custom item name function for bsf listJan Sebechlebsky2016-08-21
| | | | | | | | | which will construct string description of filter chain. This is done using lazy-initialization, so there is no overhead if item name is never accessed. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/bsf: Add list BSF APIJan Sebechlebsky2016-08-15
| | | | Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/bsf: Add ff_bsf_get_packet_ref() functionJan Sebechlebsky2016-08-13
| | | | | | | | Use of this function can save unnecessary malloc operation in bitstream filter. Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/bsf: Forbid packet without payload in av_bsf_send_packetJan Sebechlebsky2016-08-13
| | | | | Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/bsf: Set EOF flag only in pkt == NULLJan Sebechlebsky2016-08-13
| | | | | | | Set BSF EOF flag only if pkt == NULL in av_bsf_send_packet(). Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Merge commit '33d18982fa03feb061c8f744a4f0a9175c1f63ab'Derek Buitenhuis2016-04-17
| | | | | | | | | * commit '33d18982fa03feb061c8f744a4f0a9175c1f63ab': lavc: add a new bitstream filtering API Conversions-by: Hendrik Leppkes <h.leppkes@gmail.com> Conversions-by: Derek Buitenguis <derek.buitenhuis@gmail.com> Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* lavc: add a new bitstream filtering APIAnton Khirnov2016-03-20
Deprecate the current bitstream filtering API.
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