When a parameter like e.g. language is contained more than once in the
part of var_stream_map pertaining to a single VariantStream, the later
one just overwrites the pointer to the earlier one, leading to a
memleak. This commit changes this by handling the situation gracefully:
The earlier string is silently freed first, so that the last one wins.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
"If an error is detected, localtime_r() shall return a null pointer
and set errno to indicate the error." Yet in case this happened in
hls_init(), AVERROR(ENOMEM) has been returned.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
The hls muxer allocates an array of VariantStreams, a structure that
contains pointers to objects that need to be freed on their own. This
means that the number of allocated VariantStreams needs to be correct
when they are freed; yet the number of VariantStreams is set in
update_variant_stream_info() resp. parse_variant_stream_mapstring()
before the allocation has been checked for success, so that upon error
an attempt would be made to free the objects whose pointers are
positioned at position NULL (the location of VariantStreams) +
offsetof(VariantStream, the corresponding pointer).
Furthermore d1fe1344 added another possibility for the first function
to leave an inconsistent state behind: If an allocation of one of the
objects referenced by the VariantStream fails, the VariantStream will be
freed, but the number of allocated VariantStreams isn't reset, leading
to the same problem as above. (This was done in the mistaken belief that
the VariantStreams array would leak otherwise.)
Essentially the same also happens for the number of cc-streams. It has
been fixed, too.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
Under certain circumstances hls_write_packet() would add options to an
AVDictionary. Said dictionary was never explicitly freed, instead it was
presumed that these options would be consumed when opening a new
IO-context. This left several possibilities for memleaks:
a) When no new IO-context would be opened at all. This is possible when
using both the flags temp_file and single_file together with a file
output.
b) When an error happens before one actually tries to open the new
IO-context.
c) When the new IO-context does not consume all options.
All three have been fixed; furthermore, the AVDictionary has been put
into a smaller scope (namely the only part of hls_write_packet() where
it is actually used).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
hls_mux_init() currently leaks an AVDictionary if opening a dynamic
buffer fails or if avformat_init_output fails. This has been fixed by
moving the initialization resp. the freeing of the dictionary around:
In the former case to a place after opening the dynamic buffer, in the
latter to a place before the check for initialization failure so that it
is done unconditionally.
Furthermore, the dictionary is now only copied and freed if the options
in it are actually used (namely when in SEGMENT_TYPE_FMP4 mode).
Finally, a similar situation in hls_start() has been fixed, too.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
hls_init() would allocate a buffer, although it is only needed in one of
two branches that follow. This commit moves the allocation to the branch
that actually needs the buffer.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
Before ed897633, the hls muxer would free its child AVFormatContexts
and reset the pointer to these contexts to NULL immediately afterwards;
ed897633 moved the former to later (into a separate function), but kept
the resetting, ensuring that the child context leaks.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
This commit fixes a memleak in the hls muxer when one uses a single file
as output. It has been forgotten to free the temporary buffers used to write
the packets so that the size of the leaks basically amounts to the size
of the output file. This commit adds the necessary free.
Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
fix ticket: 7975
Tested-by: Ian Klassen <ian@virtualfunc.com>
Suggested-by: Ian Klassen <ian@virtualfunc.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
free the old_filname to avoid memory leak in error handle
path.
Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
write mpegts or fmp4 context into buffer, and flush the buffer into
output file when split fragment. merge two format split workflow into
one workflow
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Throughout hlsenc code, all filename related buffer lengths are set
hardcoded as 1024. This PATCH change it to general value as MAX_URL_SIZE
in internal.h
Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu>
currently master playlist and subtitle playlist creation does not use
temporary files even when temp_file flag is set. Most of the use cases
it is not a problem because master playlist creation happens once on the
beginning of the whole process. But if master playlist is periodically
re-created because of master_pl_refresh_rate is set, non-atomic playlist
creation may cause problems in case of live streaming. This patch
correct this behavior by adding this functionality.
Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu>
When multiple variant streams are specified by var_stream_map option,
%v is expected either in the filename or in the last sub-directory name,
but only in one of them. When both of them contains %v string, current
error message only states half of the truth.
And even %v may appears several times inside the last sub-directory name
or in filename pattern.
This patch clarifies this in the log message and in the doc also.
Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu>
