Nicolas George 0bd1be65e8 lavd/xcbgrab: do not try to create refcounted packets. ... The framework will allocate a buffer and copy the data to it, that takes time. But it avoids constently creating and destroyng the shared memory segment, and that saves more time. On my setup, from ~200 to ~300 FPS at full screen (1920×1200), from ~1400 to ~3300 at smaller size (640×480), similar to legacy x11grab and confirmed by others. Plus, shared memory segments are a scarce resource, allocating potentially many is a bad idea. Note: if the application were to drop all references to the buffer before the next call to av_read_frame(), then passing the shared memory segment as a refcounted buffer would be even more efficient, but it is hard to guarantee, and it does not happen with the ffmpeg command-line tool. Using a small number of preallocated buffers and resorting to a copy when the pool is exhausted would be a solution to get the better of both worlds.		2016-11-03 21:23:55 +01:00
..
tests	Merge commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196'	2016-06-22 13:44:34 +02:00
Makefile	lavd: drop SDL1 device and SDL1 support	2016-09-24 16:52:40 +01:00
alldevices.c	lavd: drop SDL1 device and SDL1 support	2016-09-24 16:52:40 +01:00
alsa.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
alsa.h	avdevice/alsa: add av_warn_unused_result	2015-10-16 07:54:36 -04:00
alsa_dec.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
alsa_enc.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
avdevice.c	…
avdevice.h	doxygen: Standardize root-level modules	2016-08-02 22:15:25 -07:00
avdeviceres.rc	…
avfoundation.m	avdevice: Fix max value of AV_OPT_TYPE_VIDEO_RATE	2016-06-09 10:34:42 +02:00
bktr.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
caca.c	avdevice/caca: switch to codecpar	2016-04-11 01:34:02 +02:00
decklink_common.cpp	decklink: enhancement: format selection with AVRational v2	2016-08-05 21:33:43 +02:00
decklink_common.h	lavd/decklink_dec: add option to disable drawing bars on signal loss	2016-10-21 20:24:12 +02:00
decklink_common_c.h	lavd/decklink_dec: add option to disable drawing bars on signal loss	2016-10-21 20:24:12 +02:00
decklink_dec.cpp	lavd/decklink_dec: fix indentation	2016-10-21 20:24:12 +02:00
decklink_dec.h	cosmetics: Correct comments in decklink_dec	2016-08-02 13:01:12 -07:00
decklink_dec_c.c	lavd/decklink_dec: add option to disable drawing bars on signal loss	2016-10-21 20:24:12 +02:00
decklink_enc.cpp	decklink: Remove unneeded spaces in initializers	2016-08-02 22:46:28 -07:00
decklink_enc.h	all: Add missing header guards	2016-01-28 19:49:48 -08:00
decklink_enc_c.c	…
dshow.c	dshow: avoid duplicate NULL check before free	2016-06-23 03:18:16 +02:00
dshow_capture.h	dshow: don't add two instances of same device to graphs	2016-06-23 03:18:16 +02:00
dshow_common.c	…
dshow_crossbar.c	lavd/dshow_crossbar: remove trailing whitespace	2016-03-28 13:31:38 -08:00
dshow_enummediatypes.c	avdevice/dshow_enummediatypes: check return of av_malloc	2015-11-06 09:36:57 -05:00
dshow_enumpins.c	…
dshow_filter.c	avdevice/dshow: satisfy alloc contract better	2016-08-20 12:06:50 +02:00
dshow_pin.c	…
dv1394.c	cosmetics: fix some misspelled words	2016-07-17 13:10:27 -03:00
dv1394.h	…
fbdev_common.c	…
fbdev_common.h	…
fbdev_dec.c	avdevice: Fix max value of AV_OPT_TYPE_VIDEO_RATE	2016-06-09 10:34:42 +02:00
fbdev_enc.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
file_open.c	…
gdigrab.c	avdevice: Fix max value of AV_OPT_TYPE_VIDEO_RATE	2016-06-09 10:34:42 +02:00
iec61883.c	…
internal.h	avdevice/internal: add av_warn_unused_result	2015-10-16 17:28:40 -04:00
jack.c	avdev/jack: remove duplicated dispatch macros	2016-07-26 23:10:47 +01:00
lavfi.c	avdevice/lavfi: Do not set avg_frame_rate to the timebase	2016-06-04 02:10:10 +02:00
libavdevice.v	Merge commit '535a742c2695a9e0c586b50d7fa76e318232ff24'	2016-06-27 17:56:47 +02:00
libcdio.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
libdc1394.c	lavd/libdc1394: distinguish between enumeration errors and no cameras found	2016-07-25 19:39:13 +02:00
openal-dec.c	lavd/openal: don't return zero sized packet if no samples are available	2016-10-03 21:15:48 +02:00
opengl_enc.c	lavd/opengl: use SDL2	2016-09-24 16:50:40 +01:00
opengl_enc_shaders.h	all: Make header guard names consistent	2016-01-31 15:44:11 -08:00
oss.c	…
oss.h	…
oss_dec.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
oss_enc.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
pulse_audio_common.c	…
pulse_audio_common.h	avdevice/pulse_audio_common: add av_warn_unused_result	2015-10-22 19:03:50 -04:00
pulse_audio_dec.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
pulse_audio_enc.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
qtkit.m	…
sdl2.c	lavd/sdl2: add sdl alias	2016-09-25 18:08:06 +01:00
sndio.c	…
sndio.h	…
sndio_dec.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
sndio_enc.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
timefilter.c	Merge commit 'd12b5b2f135aade4099f4b26b0fe678656158c13'	2016-05-11 19:13:03 +01:00
timefilter.h	…
utils.c	…
v4l.c	…
v4l2-common.c	…
v4l2-common.h	…
v4l2.c	Merge commit '11de006babf735aafa3462d43dd2c02bb6ac6e2f'	2016-06-22 17:36:42 +02:00
v4l2enc.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00
version.h	Bump minor versions after 3.2 branchpoint to seperate release	2016-10-26 20:52:42 +02:00
vfwcap.c	Merge commit '5afb94c817abffad030c6b94d7003dca8aace3d5'	2016-06-21 22:09:35 +02:00
x11grab.c	Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb'	2016-06-21 21:55:34 +02:00
xcbgrab.c	lavd/xcbgrab: do not try to create refcounted packets.	2016-11-03 21:23:55 +01:00
xv.c	Merge commit '9200514ad8717c63f82101dc394f4378854325bf'	2016-04-10 20:59:55 +01:00