#include "libavutil/parseutils.h"
#include "libavutil/opt.h"
#include "libavformat/internal.h"
#include "avdevice.h"
#include "dshow.h"
Go to the source code of this file.
Data Structures | |
struct | dshow_ctx |
Defines | |
#define | OFFSET(x) offsetof(struct dshow_ctx, x) |
#define | DEC AV_OPT_FLAG_DECODING_PARAM |
Functions | |
static enum PixelFormat | dshow_pixfmt (DWORD biCompression, WORD biBitCount) |
static enum CodecID | dshow_codecid (DWORD biCompression) |
static int | dshow_read_close (AVFormatContext *s) |
static char * | dup_wchar_to_utf8 (wchar_t *w) |
static int | shall_we_drop (AVFormatContext *s) |
static void | callback (void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time) |
static int | dshow_cycle_devices (AVFormatContext *avctx, ICreateDevEnum *devenum, enum dshowDeviceType devtype, IBaseFilter **pfilter) |
Cycle through available devices using the device enumerator devenum, retrieve the device with type specified by devtype and return the pointer to the object found in *pfilter. | |
static void | dshow_cycle_formats (AVFormatContext *avctx, enum dshowDeviceType devtype, IPin *pin, int *pformat_set) |
Cycle through available formats using the specified pin, try to set parameters specified through AVOptions and if successful return 1 in *pformat_set. | |
static int | dshow_cycle_pins (AVFormatContext *avctx, enum dshowDeviceType devtype, IBaseFilter *device_filter, IPin **ppin) |
Cycle through available pins using the device_filter device, of type devtype, retrieve the first output pin and return the pointer to the object found in *ppin. | |
static int | dshow_list_device_options (AVFormatContext *avctx, ICreateDevEnum *devenum, enum dshowDeviceType devtype) |
List options for device with type devtype. | |
static int | dshow_open_device (AVFormatContext *avctx, ICreateDevEnum *devenum, enum dshowDeviceType devtype) |
static enum CodecID | waveform_codec_id (enum AVSampleFormat sample_fmt) |
static enum SampleFormat | sample_fmt_bits_per_sample (int bits) |
static int | dshow_add_device (AVFormatContext *avctx, AVFormatParameters *ap, enum dshowDeviceType devtype) |
static int | parse_device_name (AVFormatContext *avctx) |
static int | dshow_read_header (AVFormatContext *avctx, AVFormatParameters *ap) |
static int | dshow_read_packet (AVFormatContext *s, AVPacket *pkt) |
Variables | |
static const AVOption | options [] |
static const AVClass | dshow_class |
AVInputFormat | ff_dshow_demuxer |
static void callback | ( | void * | priv_data, | |
int | index, | |||
uint8_t * | buf, | |||
int | buf_size, | |||
int64_t | time | |||
) | [static] |
Definition at line 202 of file dshow.c.
Referenced by av_log_set_callback(), dshow_open_device(), and libspeex_decode_init().
static int dshow_add_device | ( | AVFormatContext * | avctx, | |
AVFormatParameters * | ap, | |||
enum dshowDeviceType | devtype | |||
) | [static] |
static enum CodecID dshow_codecid | ( | DWORD | biCompression | ) | [static] |
static int dshow_cycle_devices | ( | AVFormatContext * | avctx, | |
ICreateDevEnum * | devenum, | |||
enum dshowDeviceType | devtype, | |||
IBaseFilter ** | pfilter | |||
) | [static] |
Cycle through available devices using the device enumerator devenum, retrieve the device with type specified by devtype and return the pointer to the object found in *pfilter.
If pfilter is NULL, list all device names.
Definition at line 249 of file dshow.c.
Referenced by dshow_list_device_options(), dshow_open_device(), and dshow_read_header().
static void dshow_cycle_formats | ( | AVFormatContext * | avctx, | |
enum dshowDeviceType | devtype, | |||
IPin * | pin, | |||
int * | pformat_set | |||
) | [static] |
Cycle through available formats using the specified pin, try to set parameters specified through AVOptions and if successful return 1 in *pformat_set.
If pformat_set is NULL, list all pin capabilities.
Definition at line 328 of file dshow.c.
Referenced by dshow_cycle_pins().
static int dshow_cycle_pins | ( | AVFormatContext * | avctx, | |
enum dshowDeviceType | devtype, | |||
IBaseFilter * | device_filter, | |||
IPin ** | ppin | |||
) | [static] |
Cycle through available pins using the device_filter device, of type devtype, retrieve the first output pin and return the pointer to the object found in *ppin.
If ppin is NULL, cycle through all pins listing audio/video capabilities.
Definition at line 456 of file dshow.c.
Referenced by dshow_list_device_options(), and dshow_open_device().
static int dshow_list_device_options | ( | AVFormatContext * | avctx, | |
ICreateDevEnum * | devenum, | |||
enum dshowDeviceType | devtype | |||
) | [static] |
List options for device with type devtype.
devenum | device enumerator used for accessing the device |
Definition at line 562 of file dshow.c.
Referenced by dshow_read_header().
static int dshow_open_device | ( | AVFormatContext * | avctx, | |
ICreateDevEnum * | devenum, | |||
enum dshowDeviceType | devtype | |||
) | [static] |
static enum PixelFormat dshow_pixfmt | ( | DWORD | biCompression, | |
WORD | biBitCount | |||
) | [static] |
static int dshow_read_close | ( | AVFormatContext * | s | ) | [static] |
static int dshow_read_header | ( | AVFormatContext * | avctx, | |
AVFormatParameters * | ap | |||
) | [static] |
static int dshow_read_packet | ( | AVFormatContext * | s, | |
AVPacket * | pkt | |||
) | [static] |
static char* dup_wchar_to_utf8 | ( | wchar_t * | w | ) | [static] |
static int parse_device_name | ( | AVFormatContext * | avctx | ) | [static] |
static enum SampleFormat sample_fmt_bits_per_sample | ( | int | bits | ) | [static] |
static int shall_we_drop | ( | AVFormatContext * | s | ) | [static] |
static enum CodecID waveform_codec_id | ( | enum AVSampleFormat | sample_fmt | ) | [static] |
const AVClass dshow_class [static] |
Initial value:
{ .class_name = "DirectShow indev", .item_name = av_default_item_name, .option = options, .version = LIBAVUTIL_VERSION_INT, }
Initial value:
{ "dshow", NULL_IF_CONFIG_SMALL("DirectShow capture"), sizeof(struct dshow_ctx), NULL, dshow_read_header, dshow_read_packet, dshow_read_close, .flags = AVFMT_NOFILE, .priv_class = &dshow_class, }
Initial value:
{ { "video_size", "set video size given a string such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, { "framerate", "set video frame rate", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, { "sample_rate", "set audio sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, DEC }, { "sample_size", "set audio sample size", OFFSET(sample_size), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 16, DEC }, { "channels", "set number of audio channels, such as 1 or 2", OFFSET(channels), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, DEC }, { "list_devices", "list available devices", OFFSET(list_devices), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1, DEC, "list_devices" }, { "true", "", 0, AV_OPT_TYPE_CONST, {.dbl=1}, 0, 0, DEC, "list_devices" }, { "false", "", 0, AV_OPT_TYPE_CONST, {.dbl=0}, 0, 0, DEC, "list_devices" }, { "list_options", "list available options for specified device", OFFSET(list_options), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1, DEC, "list_options" }, { "true", "", 0, AV_OPT_TYPE_CONST, {.dbl=1}, 0, 0, DEC, "list_options" }, { "false", "", 0, AV_OPT_TYPE_CONST, {.dbl=0}, 0, 0, DEC, "list_options" }, { "video_device_number", "set video device number for devices with same name (starts at 0)", OFFSET(video_device_number), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, DEC }, { "audio_device_number", "set audio device number for devices with same name (starts at 0)", OFFSET(audio_device_number), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, DEC }, { NULL }, }