Commit graph

44 commits

Author SHA1 Message Date
Romain Vimont
e9096e3e34 Remove unnecessary calls to av_packet_unref()
av_packet_free() already calls av_packet_unref().
2021-07-04 12:19:52 +02:00
Romain Vimont
4af317d40d Allocate AVPacket for recorder
From FFmpeg/doc/APIchanges:

    2021-03-17 - f7db77bd87 - lavc 58.133.100 - codec.h
      Deprecated av_init_packet(). Once removed, sizeof(AVPacket) will
      no longer be a part of the public ABI.

Refs #2302 <https://github.com/Genymobile/scrcpy/issues/2302>
2021-06-14 09:07:49 +02:00
Romain Vimont
151bc16644 Use strlist_contains() to find a muxer
The AVOutputFormat name is a string list: it contains names separated by
',' (possibly only one).
2021-04-25 14:55:19 +02:00
Romain Vimont
243854a408 Fix recorder comment 2021-04-25 14:38:42 +02:00
Romain Vimont
2a5dfc1c17 Handle errors using gotos in recorder_open()
There are many initializations in recorder_open(). Handle RAII-like
deinitialization using gotos.
2021-04-25 14:38:42 +02:00
Romain Vimont
e3fccc5a5e Initialize recorder fields on open
Only initialize ops and parameters copy from recorder_init(). It was
inconsistent to initialize some fields from _init() and some others from
_open().
2021-04-25 14:38:42 +02:00
Romain Vimont
f7a1b67d66 Make stream push packets to sinks
Now that decoder and recorder implement the packet sink trait, make
stream push packets to the sinks without depending on the concrete sink
types.
2021-04-25 14:38:42 +02:00
Romain Vimont
5980183a33 Expose recorder as packet sink
Make recorder implement the packet sink trait.

This will allow the stream to push packets without depending on the
concrete sink type.
2021-04-25 14:38:42 +02:00
Romain Vimont
fe8de893ca Privatize recorder threading
The fact that the recorder uses a separate thread is an internal detail,
so the functions _start(), _stop() and _join() should not be exposed.

Instead, start the thread on _open() and _stop()+_join() on close().

This paves the way to expose the recorder as a packet sink trait.
2021-04-25 14:38:42 +02:00
Romain Vimont
a974483c15 Reorder recorder functions
This will make further commits more readable.
2021-04-25 14:38:42 +02:00
Romain Vimont
5d9e96dc4e Remove compat with old FFmpeg codec params API
The new API has been introduced in 2016 in libavformat 57.xx, it's very
old.

This will avoid to maintain two code paths for codec parameters.
2021-04-25 14:38:42 +02:00
Romain Vimont
21b590b766 Write trailer from recorder thread
The recorder thread wrote the whole content except the trailer, which
was odd.
2021-04-25 14:38:42 +02:00
Romain Vimont
d0983db592 Make internal recorder function static 2021-04-10 18:48:52 +02:00
Romain Vimont
f6320c7e31 Wrap SDL thread functions into scrcpy-specific API
The goal is to expose a consistent API for system tools, and paves the
way to make the "core" independant of SDL in the future.
2021-02-17 09:54:03 +01:00
Romain Vimont
30e619d37f Replace SDL_strdup() by strdup()
The functions SDL_malloc(), SDL_free() and SDL_strdup() were used only
because strdup() was not available everywhere.

Now that it is available, use the native version of these functions.
2021-02-17 09:54:03 +01:00
Romain Vimont
59feb2a15c Group common includes into common.h
Include config.h and compat.h in common.h, and include common.h from all
source files.
2021-01-08 19:22:10 +01:00
Romain Vimont
a65ebceac1 Add missing mutex unlock on error
Fixes #1770 <https://github.com/Genymobile/scrcpy/issues/1770>

Reported-by: lordnn
2020-09-20 01:11:13 +02:00
Romain Vimont
0ba74fbd9a Make scrcpy.h independant of other headers
The header scrcpy.h is intended to be the "public" API. It should not
depend on other internal headers.

Therefore, declare all required structs in this header and adapt
internal code.
2020-06-19 22:30:02 +02:00
Romain Vimont
510caff0cd Replace SDL_assert() by assert()
SDL_assert() open a dialog on assertion failure.

There is no reason not to use assert() directly.
2019-11-27 21:19:46 +01:00
Romain Vimont
dfd0707a29 Move utilities to util/ 2019-11-24 11:53:23 +01:00
Romain Vimont
771bd8404d Do not write invalid packet duration
Configuration packets have no PTS. Do not compute a packet duration from
their PTS.

Fixes recording to mp4 on device rotation.
2019-11-13 16:14:46 +01:00
Romain Vimont
b08a98324d Fix segfault on empty file recorded
Write the file trailer only if the file header have been written, to
avoid a segfault in libav.

Fixes <https://github.com/Genymobile/scrcpy/issues/918>.
2019-11-07 21:58:57 +01:00
Romain Vimont
95fd64b5de Add scrcpy version in recorded video metadata
It might help to understand problems in recorded videos.
2019-10-31 20:57:57 +01:00
Romain Vimont
1f8ba1ca79 Include config.h everywhere
Ref: <https://github.com/Genymobile/scrcpy/issues/829>

Suggested-by: Louis Kruger <louisk@gmail.com>
2019-09-29 22:39:53 +02:00
Romain Vimont
a9c8fa305d Fix segfault on recording with old FFmpeg
The AVPacket fields side_data and side_data_elems were not initialized
by av_packet_ref() in old FFmpeg versions (prior to [1]).

As a consequence, on av_packet_unref(), side_data was freed, causing a
segfault.

Fixes <https://github.com/Genymobile/scrcpy/issues/707>

[1]: <http://git.videolan.org/gitweb.cgi/ffmpeg.git/?p=ffmpeg.git;a=commitdiff;h=3b4026e15110547892d5d770b6b43c9e34df458f>
2019-08-13 18:58:36 +02:00
Romain Vimont
8507fea271 Record a packet with its duration
Record a packet only once the following has been received, so that we
can set its duration before muxing it.

Fixes <https://github.com/Genymobile/scrcpy/issues/702>
2019-08-08 18:57:52 +02:00
Romain Vimont
5e4ccfd832 Use generic FIFO queue for recording
Replace the specific recording queue by the new generic FIFO queue
implementation.
2019-08-01 23:15:47 +02:00
Romain Vimont
6abb4902c6 Log recording failure
If recording fails, log "recording failed" instead of "recording
complete".
2019-07-31 11:04:38 +02:00
Romain Vimont
35d9185f6c Record asynchronously
The record file was written from the stream thread. As a consequence,
any blocking I/O to write the file delayed the decoder.

For maximum performance even when recording is enabled, send
(refcounted) packets to a separate recording thread.
2019-07-31 01:55:40 +02:00
Romain Vimont
63af7fbafe Reduce latency by 1 frame
To packetize the H.264 raw stream, av_parser_parse2() (called by
av_read_frame()) knows that it has received a full frame only after it
has received some data for the next frame. As a consequence, the client
always waited until the next frame before sending the current frame to
the decoder!

On the device side, we know packets boundaries. To reduce latency,
make the device always transmit the "frame meta" to packetize the stream
manually (it was already implemented to send PTS, but only enabled on
recording).

On the client side, replace av_read_frame() by manual packetizing and
parsing.

<https://stackoverflow.com/questions/50682518/replacing-av-read-frame-to-reduce-delay>
<https://trac.ffmpeg.org/ticket/3354>
2019-07-31 01:55:32 +02:00
Romain Vimont
3c55d0c69b Fix double-free on error
If writing the recording header fails, do not clean the resources
immediately to avoid double-free.
2019-07-12 21:07:06 +02:00
Romain Vimont
056e47e752 Replace "cannot" by "could not" 2019-06-23 20:52:03 +02:00
Romain Vimont
a7b3901c31 Add more consts
Some decoder and recorder functions must not write to AVCodec and
AVPacket.
2019-03-03 12:02:41 +01:00
Romain Vimont
dfed1b250e Replace SDL types by C99 standard types
Scrcpy is a C11 project. Use the C99 standard types instead of the
SDL-specific types:

    SDL_bool -> bool
    SintXX   -> intXX_t
    UintXX   -> uintXX_t
2019-03-02 23:55:23 +01:00
Romain Vimont
aeda583a2c Update code style
Limit source code to 80 chars, and declare functions return type and
modifiers on a separate line.

This allows to avoid very long lines, and all function names are
aligned.

(We do this on VLC, and I like it.)
2019-03-02 20:28:46 +01:00
Romain Vimont
751600a7f9 Move all compat ifdefs definitions to compat.h
This allows to give a proper name to features requirements.
2019-02-16 15:28:56 +01:00
Romain Vimont
f5f4e6b1c5 Allocate extradata with av_malloc()
The extradata buffer is owned by libav, so it must be allocated with
av_malloc(), not SDL_malloc().

This fixes a crash on Windows during avformat_free_context().
2019-02-16 00:53:12 +01:00
Romain Vimont
b23cacfc1a Add recording logs
Log when recording is started and stopped.
2019-02-10 11:29:34 +01:00
Romain Vimont
0ed2373952 Support recording to MKV
Implement recording to Matroska files.

The format to use is determined by the option -F/--record-format if set,
or by the file extension (".mp4" or ".mkv").
2019-02-09 15:56:24 +01:00
Romain Vimont
1aaad6ba35 Rescale packet timestamp to container time base
Some containers force their own time base. For example, matroska
overwrite time_base to (AVRational) {1, 1000}.

Therefore, rescale our packet timestamps to the output stream time base.

Suggested-by: Steve Lhomme <robux4@ycbcr.xyz>
2019-02-09 15:51:18 +01:00
Romain Vimont
c8f0805b89 Write header file with correct extradata
When recording, the header must be written with extradata set to the
content of the very first packet.

Suggested-by: Steve Lhomme <robux4@ycbcr.xyz>

Fixes <https://github.com/Genymobile/scrcpy/issues/351>
Fixes <https://github.com/Genymobile/scrcpy/issues/416>
2019-02-09 15:50:24 +01:00
Romain Vimont
b98eb7d0fa Support AVStream.codec for old FFmpeg versions
AVStream.codec has been deprecated in favor of AVStream.codecpar.

Due to the FFmpeg/Libav split, this happened in two separate versions:
 - 57.33.100 for FFmpeg
 - 57.5.0 for Libav
2018-11-11 21:37:31 +01:00
yuchenlin
e361b49b4a recorder: use av_oformat_next to support older FFmpeg
Signed-off-by: yuchenlin <npes87184@gmail.com>
2018-11-11 21:37:31 +01:00
Romain Vimont
27686e9361 Add recorder
Implement recording in a separate "class".
2018-11-11 16:30:23 +01:00