FFmpeg

Commit Graph

Author	SHA1	Message	Date
Stefano Sabatini	60950adc18	lavd/v4l2: implement consistent error handling In particular, avoid use of non-thread-safe strerror(), and store errno before calling av_log().	12 years ago
Giorgio Vazzana	514216d8a9	lavd/v4l2: read the correct time per frame from devices that support a standard Generally speaking, there are two types of v4l2 devices [1]: 1) devices that support a standard, like PAL or NTFS (tv cards, for example). For this class of devices the framerate is fixed by the standard (for example PAL uses 25 fps) and the v4l2 driver cannot usually negotiate a different framerate (unless it can skip frames on the driver side, to save I/O bandwidth). 2) devices for which the notion of standard does not make sense (webcams, for example). For these devices it is usually possibile to request a desidered framerate. In either case, the desidered frame rate can be requested when the VIDIOC_G_PARM ioctl returns the V4L2_CAP_TIMEPERFRAME flag in the capability field. Currently the code does not check for V4L2_CAP_TIMEPERFRAME and supports only the second category of devices, returning a time per frame of 0/0 for devices in the first group that do not permit to negotiate the framerate. This patch adds support to read the correct framerate in all cases. [1] http://linuxtv.org/downloads/v4l-dvb-apis/standard.html Signed-off-by: Stefano Sabatini <stefasab@gmail.com>	12 years ago
Giorgio Vazzana	ff23b76899	lavd/v4l2: add list_standards option Since the user is expected to choose the standard by name (with -standard option), add the possibility to list all the supported standards. Signed-off-by: Stefano Sabatini <stefasab@gmail.com>	12 years ago
Stephan Hilb	0501d06468	lavd/v4l2: use avcodec_find_decoder in list_formats Because libavdevice/v4l2 is a demuxer, it makes sense to look for decoders instead of encoders when listing the formats supported by the device. Signed-off-by: Stefano Sabatini <stefasab@gmail.com>	12 years ago
Giorgio Vazzana	93d319a582	lavd/v4l2: select input immediately after opening the device After opening the device, the first thing we should do is selecting the input. This is because the image formats (VIDIOC_ENUM_FMT ioctl) and the standards (VIDIOC_ENUMSTD ioctl) supported may depend on the selected input ([1] and [2]). [1] http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-enum-fmt.html [2] http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-enumstd.html Signed-off-by: Stefano Sabatini <stefasab@gmail.com>	12 years ago
Stefano Sabatini	5306976be8	lavd/v4l2: sanitize logic of device_try_init(), so that it properly signal errors Make device_try_init() return an error value, and allow to properly report errors which are not due to a wrong pixel/codec configuration. In particular, report intelligible feedback in case of busy device.	12 years ago
Nicolas George	0e79fe37e5	lavd/v4l2: init return value. Fix a warning and random failures.	12 years ago
Stephan Hilb	f245a2086a	lavd/v4l2: update broken link to v4l2 video capture example Reviewed-by: Stefano Sabatini	12 years ago
Stephan Hilb	36810215fa	lavd/v4l2: improve debug message Reviewed-by: Stefano Sabatini	12 years ago
Stefano Sabatini	d012059e7b	lavd/v4l2: apply grammar/consistency fixes to options help fields	12 years ago
Stefano Sabatini	aa359d3808	lavd/v4l2: return meaningful error code from device_init() In particular, propagate errno value in case of device init failure.	12 years ago
Stefano Sabatini	fce165027f	lavd/v4l2: fix misc messages	12 years ago
Stefano Sabatini	1b325ce91a	lavd/v4l2: extend error/debug feedback in case of invalid codec/pix_fmt	12 years ago
Anton Khirnov	49dc82eef7	v4l2: do not assert on a value received from outside of Libav	12 years ago
Anton Khirnov	838b849e70	v4l2: set the average framerate instead of codec timebase. Codec timebase is supposed to be set by decoders only.	12 years ago
Anton Khirnov	246da0b135	v4l2: avoid pointless indirection. v4l2_read_header() does no cleanup, so it can return directly, without any need for goto.	12 years ago
Carl Eugen Hoyos	0fb79f30db	Support H264 over video4linux2. Tested-by: Val Malykh	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Martin Storsjö	e6153f173a	avopt: Store defaults for AV_OPT_TYPE_INT in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Martin Storsjö	124134e424	avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	e7b4337777	v4l2: fix compile on systems that lack V4L2_PIX_FMT_CPIA1 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Stephan Hilb	6eac554659	Add CPiA video decoder The cpia video decoder is intended to be used with the v4l2 demuxer. There are some small changes to the v4l2 demuxer to support the variable frame length of the format. Fixes ticket #1537 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	13 years ago
Nicolas George	fd58678b86	v4l2: remove call to v4l2_fd_open. v4l2_fd_open is already called at the end of v4l2_open; calling a second time leaks structures inside libv4l2. Fix trac ticket #1560.	13 years ago
Michael Niedermayer	a6a085a928	v4l2: use av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Mans Rullgard	6501dcfb5e	Remove unnecessary inclusions of [sys/]time.h Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Nicolas George	3e63071115	v4l2: use AV_OPT_TYPE_IMAGE_SIZE.	13 years ago
Nicolas George	12292f35a3	v4l2: allow to convert monotonic timestamps.	13 years ago
Carl Eugen Hoyos	5fa1a1d8fc	Support YV12 from video4linux2 devices. Reviewed-by: Luca Abeni	13 years ago
Carl Eugen Hoyos	b2327a8202	Add some missing v4l2 pix_fmt mappings.	13 years ago
Carl Eugen Hoyos	4632066713	Fix v4l pix_fmt mapping for rgb32: There is no transparency information.	13 years ago
Carl Eugen Hoyos	93a3ba9bcd	Fix pix_fmt mapping for v4l2 rgb5x5.	13 years ago
Anton Khirnov	6e9651d106	lavf: remove AVFormatParameters from AVFormatContext.read_header signature	13 years ago
Michael Niedermayer	106f714d30	Revert "v4l2: poll the file descriptor" This reverts commit `0efd48dfd1`. Reason for the revert is that the code seems based on some misunderstanding on how the code works. Conflicts: libavdevice/v4l2.c Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Luca Barbato	b6db385922	v4l2: use C99 struct initializer Remove some unneeded memsets.	13 years ago
Luca Barbato	0efd48dfd1	v4l2: poll the file descriptor Instead of busy waiting use poll();	13 years ago
Luca Barbato	b8c310cb0a	v4l2: support compressed formats Let pass the codec name to -pixel_format and introduce -input_format.	13 years ago
Janne Grunau	f13a9ca906	v4l2: use V4L2_FMT_FLAG_EMULATED only if it is defined V4L2_FMT_FLAG_EMULATED was added in 2.6.32.	13 years ago
Luca Barbato	a6a4793d04	v4l2: list available formats Make use of the experimental framesize enumeration ioctl if available.	13 years ago
Luca Barbato	cd2bbad303	v4l2: set the proper codec_tag Unbreak direct streamcopy.	13 years ago
Luca Barbato	eb89b4fc09	v4l2: refactor device_open Check capabilities directly in the function, further simplify the code.	13 years ago
Luca Barbato	246007d370	v4l2: simplify away io_method Only mmap is supported.	13 years ago
Luca Barbato	a896d7f45a	v4l2: cosmetics	13 years ago
Luca Barbato	21aa6ae4fb	v4l2: uniform and format options	13 years ago
Luca Barbato	af7123b2ad	v4l2: do not force interlaced mode Video4linux2 supports both interlaced and non-interlaced mode, do not ask for interlaced if not necessary.	13 years ago
Janne Grunau	1adba23cec	v4l2: remove unneded linux specific asm/types.h include	13 years ago
Tom Evans	ffa1f541b3	libavdevice: Fix v4l2 compilation under FreeBSD Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Anton Khirnov	c3f9ebf743	lavf: make av_set_pts_info private. It's supposed to be called only from (de)muxers.	13 years ago
Clément Bœsch	2f0f9a87d0	Fix various if parenthesis misplacements.	13 years ago
Michael Niedermayer	5955c63c36	v4l2: fix uninitialized variable Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago

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214 Commits (d60fb4f7946272d2ef39703762b54c5f3a1b5789)