FFmpeg

Commit Graph

Author	SHA1	Message	Date
Clément Bœsch	165bc9caa2	v4l2: make possible to disable libv4l2 at runtime. Also disable it by default since it looks currently buggy. The usefulness of such library is mostly limited to backward compatibility with very old devices.	12 years ago
Clément Bœsch	8eec655320	lavd/v4l2: move pixel format conversion code to a separate place. This will be shared with the output device.	12 years ago
Diego Biurrun	a5f8873620	silly typo fixes	12 years ago
Nicolas George	9dd54d7422	lavd/v4l2: fully init an ioctl argument. Silence a valgrind warning about uninitialized memory.	12 years ago
Giorgio Vazzana	5009863ab5	lavd/v4l2: fix printing of list_formats table In particular we needed a '\n' at the end of the line when the format is emulated. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	b97f7d9d24	lavd/v4l2: replace ioctl() with v4l2_ioctl() This is consistent with the rest of the file and makes listing of emulated formats possible when ffmpeg is compiled with libv4l2. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	785b849f1c	lavd/v4l2: honor previously selected input channel An input channel could have been previously set with another application, like v4l2-ctl, so if no input channel is specified use the previosly selected one. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	bcd3eb3e7a	lavd/v4l2: silence libv4l2 logging Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	ee4a658695	lavd/v4l2: fix bug in init_convert_timestamp() The current code returned a period=0, resulting in identical pts for all frames after time-filtering. This is because AV_TIME_BASE_Q={1, AV_TIME_BASE} and not {AV_TIME_BASE, 1}. With this patch the correct period in microseconds is computed.	12 years ago
Michael Niedermayer	9cf788eca8	avformat/avdevice: add missing time.h includes Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	9222978aed	lavd/v4l2: simplify code struct buff_data contains a pointer to struct video_data, so passing the file descriptor again is redundant. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	0286b42540	lavd/v4l2: correctly handle error conditions in mmap_read_frame() In particular: 1) save errno before it (possibly) gets overwritten by other calls 2) do not forget to enqueue the buffer again in case of error Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	1afddbe59e	avpacket: use AVBuffer to allow refcounting the packets. This will allow us to avoid copying the packets in many cases. This breaks ABI.	12 years ago
Michael Niedermayer	3827734591	v4l2: fix regression that caused ffmpeg to occasionally get stuck Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	0d66268e15	lavd/v4l2: copy frames into normally allocated packets whenever there is just one buffer left available This will avoid the possibility that we dequeue more buffers than we have obtained from the v4l2 driver. Fixes ticket #1570 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	54b2bddd22	v4l2: try to fix build on BSD Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Carl Eugen Hoyos	fdbe7628a9	Add yvu410 as a supported v4l2 input format.	12 years ago
Carl Eugen Hoyos	fdec49cbe8	Add gray16 as a supported v4l2 input format.	12 years ago
Stefano Sabatini	f0703b6cba	lavd/v4l2: fix error logic when enumerating standards Set ret to 0 before enumerating standards in v4l2_set_parameters(), avoid use of uninitialized variable. Regression introduced in `60950adc18`.	12 years ago
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>	12 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>	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 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

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180 Commits (39a69d9dfbc7d527018546d7a1a1be99d82dceeb)