The log message was logged for `filtergraphs[j]` which would cause a
heap buffer overflow in certain circumstances.
Correctly it should be logged for the current filtergraph, so just
use `fg` here.
To streamcopy_init().
This will allow to simplify the control flow in ost_add() by moving the
ost_get_filters() call (which previously had to handle both encoding and
streamcopy streams) to ost_bind_filter() (which is only called for
audio/video encoding).
Also, return EINVAL rather than ENOSYS, as trying to combine filtering
with streamcopy is a parameter error.
Similar to what was previously done for other components, e.g. decoders
(see 3b84140a1b).
Start by moving {samples,frames}_encoded into the public struct.
This function creates AND initializes a filter, so setting any filter
options after it is wrong. It happens to work when the filter's init
function does not touch the options in question, but is forbidden by the
API and is not guaranteed to remain functional.
Instead, use avfilter_graph_alloc_filter(), followed by setting the
options, and avfilter_init_dict().
This function creates AND initializes a filter, so setting any filter
options after it is wrong. It happens to work when the filter's init
function does not touch the options in question, but is forbidden by the
API and is not guaranteed to remain functional.
Instead, use avfilter_graph_alloc_filter(), followed by setting the
options, and avfilter_init_dict().
With this, nothing in ffmpeg_filter acesses OutputStream anymore, thus
there are no more direct ties between filtering and muxing.
Rename init_simple_filtergraph() to fg_create_simple() for consistency.
It is no longer used for anything besides a sanity-checking assert.
Rename the function to ofilter_bind_enc(), as it no longer has any
assumptions about the target being an output stream.
Pass them to ofilter_bind_ost() via OutputFilterOptions, as is done for
most other data it needs. OutputStream.[max_]frame_rate/force_fps are no
longer used outside of ffmpeg_mux*, and so can be made private.
This is a step toward decoupling encoders from muxers.
This code uses no encoder properties or state besides its name, and is
mostly muxer logic, and thus belongs more properly into the muxer.
The results of several test change due to different metadata tag order
(the "encoder" tag is now set first).
Have the muxer code read them out of the encoder context in
of_stream_init() instead.
OutputStream.par_in no longer needs to be public, so can be moved to
MuxStream.
This is a step towards decoupling encoders from muxers.
Instead, pass the encoder context to of_stream_init() and have the muxer
take the timebase from there. Note that the muxer can currently access
the codec context directly, but that will change in future commits.
This is a step towards decoupling encoders from muxers.
The only variable accessed from it is AVCodecContext, which we can
pass directly.
Also, this function currently logs into the AVCodecContext, which is
wrong. Log to Encoder instead.
Log decoder messages to the encoder rather than OutputStream.
This is a step towards decoupling encoders from muxers, similarly to
what was previously done to decoders and demuxers.
This extends the syntax for specifying input streams in -map and complex
filtergraph labels, to allow selecting a view by view ID, index, or
position. The corresponding decoder is then set up to decode the
appropriate view and send frames for that view to the correct
filtergraph input(s).
If not, report it as a bug. avfilter_graph_create_filter() will return ENOMEM if the
passed filter argument is NULL, which is misleading.
Signed-off-by: James Almer <jamrial@gmail.com>
When ret is checked here, it was never assigned anything, making this
check useless, as highlighted by Coverity.
It seems to be a copy paste mistake given that opt_match_per_stream_str
does not return an error code that could be checked and the previous
value assigned to ret is already checked above. So just remove this
check.
Fixes: CID1616292
This is no longer needed, since we now correctly negotiate the required
range from the mjpeg encoder via avcodec_get_supported_config().
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The only meaningful difference between choose_pix_fmts and the default
code was the inclusion of an extra branch for `keep_pix_fmt` being true.
However, in this case, we either:
1. Force the specific `ofp->format` that we inherited from
ofilter_bind_ost, or if no format was set:
2. Print an empty format list
Both of these goals can be accomplished by simply moving the decision
logic to ofilter_bind_ost, to avoid setting any format list when
keep_pix_fmt is enabled. This is arguably cleaner as it moves format
selection logic to a single function. In the case of branch 1, nothing
else needs to be done as we already force the format provided in
ofp->format, if any is set. Add an assertion to verify this assumption
just in case.
(Side note: The "choose_*" family of functions are arguably misnomers,
as they should really be called "print_*" - their current behavior is to
print the relevant format lists to the `vf/af_format` filter arguments)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Niklas Haas <git@haasn.dev>
Having macros initialize local variables seems strange to me, and there
are no more current users of these macros. (The one that was commented
out was incorrect anyway, since the macro has changed in the meantime)
While rewriting this macro, I decided to make it a bit more flexible so
it can work for all of the fields (including future fields) in a more
generic way, and to also print the channel layout using an AVBPrint to
avoid hard-coding the assumption that the length is less than 128
characters.
