Switching to a static library that contains version information as
const char strings has multiple benefits:
* The version information provided externally via compiler definitions
will fail compilation early if malformed
* An updated version string (which will happen with every commit) will
not invalidate existing compilation units, because only the static
library is affected by the change
* An update of the version change just requires a recompilation of the
static library and a linker update
* An update of the version will _not_ infect the rest of the codebase
(as it does currently, because everything includes obsconfig.h one
way or another)
* Other modules which used the macro definition directly have been
updated as much as possible to use the proper getter method from
`libobs` instead (some Windows-specific modules use preprocessor
string composition, the value has been added as a compiler definition
directly in those cases)
* Because the impact of a version change due to a commit hash change
is limited to the static library, ccache hit rates should be
improved considerably
This deprecates the following functions, replacing them with new
versions:
- `obs_output_can_begin_data_capture()` - now `*capture2()`
- `obs_output_initialize_encoders()` - now `*encoders2()`
- `obs_output_begin_data_capture()` - now `*capture2()`
The flags parameter was initially designed to support audio-only or
video-only operation of an output which had the `OBS_OUTPUT_AV` flag,
however, full support for that was never implemented, and there are
likely fundamental issues with an implementation, mainly that most
outputs are programmed assuming that there will always be at least one
audio and one video track. This requires new flags specifying support
for optional audio/video, among other things.
An implementation to allow audio/video to be optional is best done
using the flag technique above, with audio/video enablement specified
by whether media (raw, `video_t/audio_t`) or encoder (`obs_encoder_t`)
objects are specified.
Since every implementation I could find always specifies `flags` as 0,
I was able to safely conclude that immediately removing the parameter's
functionality is safe to do.
The name of the obs_output_t won't appear in usual operation but some
output types have the translation and others do not. Let's translate
them.
Also translate `FilePath` property name.
A commit 4e140d2ff added AMF error messages but they were never used.
A commit 45d029b1f removed some code but a translation key "Advanced"
was left.
A commit 77fbfbe5c removed code to translate NVENC.TooManyBFrames but
the translation key was left.
A commit 6cc7cf3d5 removed the code to select codecs but the translation
was left.
If P216 or P416 color formats are selected with AMF, these color formats
were not explicitly handled, so the switch statements would end up in
the default case. If the user had also selected a Rec. 2100 color space,
this would result in the strange error message:
"OBS does not support 8-bit output of Rec. 2100."
This message is confusing and does not correctly reflect the chosen
settings. Let's explicitly handle the P216/P416 cases and provide a more
accurate error message.
If P216 or P416 color formats are selected with NVENC, OBS will fall
back from the native implementation to the FFmpeg implementation. Here,
P216 and P416 were not explicitly handled, so the switch statements
would end up in the default case. If the user had also selected a Rec.
2100 color space, this would result in the strange error message:
"OBS does not support 8-bit output of Rec. 2100."
This message is confusing and does not correctly reflect the chosen
settings. Let's explicitly handle the P216/P416 cases and provide a more
accurate error message.
Fixes an issue where update/destroy of a media source during reconnect
would block the parent thread until the next reconnect attempt. This
would result in significant quantities of dropped frames, delayed OBS
shutdown, or frozen UI during this period.
In avcodec.h, the docs for AVCodecContext->framerate say:
encoding: May be used to signal the framerate of CFR content to an
encoder.
OBS is designed to always output Constant Frame Rate (CFR) content.
Instead of letting this be implied, let's explicitly set the framerate
per the docs.
When using FFmpeg-based NVENC, with b-frames, and a non-1 framerate
numerator (eg. `1001/60000` aka 59.94fps), the DTS values outputted
by FFmpeg result in invalid DTS values.
Detect when using an unpatched FFmpeg build and correct the values
accordingly.
We were calling avio_close on a field that might have held an
AVIOContext. This commit checks which type was allocated so we
can call the appropriate cleanup function.
Telling a user to "Check your driver is up to date" is too open to
interpretation, many users will use Windows Update or Device Manager to
check for updates which doesn't help. Instead, let's explicitly tell
them what is most likely to fix the problem.
- Do not set sample rate (not required here, but can be 24/32 now)
- Only set bit_rate for lossless codecs
- Only set frame_size for codecs using a fixed one
With 5fe417bce1 it became possible to use
Opus in local recordings, this could potentially have the user try to
record Opus in MP4.
FLAC in MP4 was marked as stable in FFmpeg 6.0
Opus in MP4 was marked as stable in FFmpeg 4.3
For Ubuntu 20.04 we still need the latter, for 22.04 (and potentially
other Linux distributions) the former.
While FLAC is not yet implemented, we may want to do that in the near
future so for simplicity just keep it at 6.0.
The empty clause was originally introduced to set a cutoff settings as a
hack at a commit ae862c16a and later removed at a commit a89470d2e. At
this time, the clause became empty but another commit aa58b9cf5 reuse
the clause and finally a commit 9baedb1c6 removes so that the clause is
empty now.
This reverts commit aa58b9cf5f.
FFmpeg has reverted their default AAC encoder from fast to twoloop,
which has much better rate control management, making it closer to CBR,
and it sounds much better.
