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Author SHA1 Message Date
Reimar Döffinger
c0f867bf50 libavformat: fix incorrect handling of incomplete AVBPrint. 
Change some internal APIs a bit to make it harder to make
such mistakes.
In particular, have the read chunk functions return an error
when the result is incomplete.
This might be less flexible, but since there has been no
use-case for that so far, avoiding coding mistakes seems better.
Add a function to queue a AVBPrint directly (ff_subtitles_queue_insert_bprint).
Also fixes a leak in lrcdec when ff_subtitles_queue_insert fails.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2023-07-29 16:05:29 +02:00
Andreas Rheinhardt
ea5bdc8893 avformat/subtitles: Deduplicate subtitles' read_(packet|seek|close) 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2021-07-18 04:26:35 +02:00
Andreas Rheinhardt
5a58e58215 avformat/realtextdec: Simplify cleanup after read_header failure 
by setting the FF_FMT_INIT_CLEANUP flag.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2021-07-08 13:30:51 +02:00
Michael Niedermayer
fe12aa6890 avformat/realtextdec: Check the pts difference before using it for the duration computation 
Fixes: signed integer overflow: 5404200000 - -9223372031709351616 cannot be represented in type 'long'
Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_REALTEXT_fuzzer-6737340551790592

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-06-18 18:58:25 +02:00
Andreas Rheinhardt
bc70684e74 avformat: Constify all muxer/demuxers 
This is possible now that the next-API is gone.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2021-04-27 11:48:06 -03:00
Michael Niedermayer
aa1b8e6898 avformat/realtextdec: Avoid undefined overflow in the end of read_ts() 
Fixes: signed integer overflow: 234080282628234040 * 100 cannot be represented in type 'long long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_REALTEXT_fuzzer-6649867065753600

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-01-26 18:37:12 +01:00
Michael Niedermayer
47c146a56b avformat/realtextdec: read_ts() in 64bits 
Fixes: signed integer overflow: 46671062 * 100 cannot be represented in type 'int'
Fixes: 26826/clusterfuzz-testcase-minimized-ffmpeg_dem_REALTEXT_fuzzer-5644062910316544

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-12-06 21:00:03 +01:00
Michael Niedermayer
493438fafc avformat/realtextdec: free queue on error 
Fixes: memleak
Fixes: 16277/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5696629440512000

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-22 18:35:44 +02:00
Michael Niedermayer
652ea23cb3 avformat/realtextdec: Check for duplicate extradata in realtext_read_header() 
Fixes: memleak
Fixes: 16140/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5684008052064256

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-05 17:54:24 +02:00
Carl Eugen Hoyos
4d8875ec23 lavf: Constify the probe function argument. 
Reviewed-by: Lauri Kasanen
Reviewed-by: Tomas Härdin
 2019-03-21 11:42:17 +01:00
Derek Buitenhuis
6f69f7a8bf Merge commit '9200514ad8' 
* commit '9200514ad8':
  lavf: replace AVStream.codec with AVStream.codecpar

This has been a HUGE effort from:
    - Derek Buitenhuis <derek.buitenhuis@gmail.com>
    - Hendrik Leppkes <h.leppkes@gmail.com>
    - wm4 <nfxjfg@googlemail.com>
    - Clément Bœsch <clement@stupeflix.com>
    - James Almer <jamrial@gmail.com>
    - Michael Niedermayer <michael@niedermayer.cc>
    - Rostislav Pehlivanov <atomnuker@gmail.com>

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-10 20:59:55 +01:00
Clément Bœsch
af924fd9e4 avformat/subtitles: forward log context in ff_subtitles_queue_finalize() for logging 2015-09-10 21:40:07 +02:00
Carl Eugen Hoyos
19a6431ec2 Print a warning if a subtitle demuxer changes utf16 to utf8. 
This does not fix anything but gives users a chance to
know that they must not pass -sub_charenc UTF-16 to ffmpeg.

Fixes ticket #4059.
 2014-10-29 01:32:44 +01:00
wm4
b7f641dc9b avformat/realtextdec: UTF-16 support 
Also remove ff_smil_extract_next_chunk - this was the last user of it.
 2014-09-05 23:13:07 +02:00
James Almer
d34ec64a22 replace calls to url_feof() with avio_feof() 
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-08 00:48:38 +02:00
Michael Niedermayer
097f668047 avformat: replace "AVPROBE_SCORE_MAX / X" by AVPROBE_SCORE_EXTENSION / Y 
Demuxers where the changed code looked less readable where skiped

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-05 13:34:56 +02:00
Clément Bœsch
8bc74221f8 lavf: remove generic index flag from text subtitles. 
This flag is not necessary.
 2013-01-02 10:32:21 +01:00
Clément Bœsch
bad4e112a2 lavf: use ff_subtitles_queue_seek() for text subtitles demuxers. 2012-12-02 00:06:03 +01:00
Michael Niedermayer
7a72695c05 Merge commit '36ef5369ee' 
* commit '36ef5369ee':
  Replace all CODEC_ID_* with AV_CODEC_ID_*
  lavc: add AV prefix to codec ids.

Conflicts:
	doc/APIchanges
	doc/examples/decoding_encoding.c
	doc/examples/muxing.c
	ffmpeg.c
	ffprobe.c
	ffserver.c
	libavcodec/8svx.c
	libavcodec/avcodec.h
	libavcodec/dnxhd_parser.c
	libavcodec/dvdsubdec.c
	libavcodec/error_resilience.c
	libavcodec/h263dec.c
	libavcodec/libvorbisenc.c
	libavcodec/mjpeg_parser.c
	libavcodec/mjpegenc.c
	libavcodec/mpeg12.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/pcm.c
	libavcodec/r210dec.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/version.h
	libavdevice/alsa-audio-dec.c
	libavdevice/bktr.c
	libavdevice/v4l2.c
	libavformat/asfdec.c
	libavformat/asfenc.c
	libavformat/avformat.h
	libavformat/avidec.c
	libavformat/caf.c
	libavformat/electronicarts.c
	libavformat/flacdec.c
	libavformat/flvdec.c
	libavformat/flvenc.c
	libavformat/framecrcenc.c
	libavformat/img2.c
	libavformat/img2dec.c
	libavformat/img2enc.c
	libavformat/ipmovie.c
	libavformat/isom.c
	libavformat/matroska.c
	libavformat/matroskadec.c
	libavformat/matroskaenc.c
	libavformat/mov.c
	libavformat/movenc.c
	libavformat/mp3dec.c
	libavformat/mpeg.c
	libavformat/mpegts.c
	libavformat/mxf.c
	libavformat/mxfdec.c
	libavformat/mxfenc.c
	libavformat/nsvdec.c
	libavformat/nut.c
	libavformat/oggenc.c
	libavformat/pmpdec.c
	libavformat/rawdec.c
	libavformat/rawenc.c
	libavformat/riff.c
	libavformat/sdp.c
	libavformat/utils.c
	libavformat/vocenc.c
	libavformat/wtv.c
	libavformat/xmv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-08-07 22:45:46 +02:00
Clément Bœsch
439e32f9b8 RealText demuxer and decoder. 2012-06-29 20:22:04 +02:00