mirrors/librempeg
1
0
Fork 0
mirror of https://github.com/librempeg/librempeg synced 2024-11-23 11:39:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

dshow: introduce support for crossbar [multiple input selectable] devices

Browse Source 
Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
This commit is contained in:
rogerdpack 2015-01-23 06:35:16 -07:00
parent b76a0e24f9
commit ec81ad21c1
5 changed files with 278 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
doc/indevs.texi
View File

@ -226,6 +226,14 @@ Select video capture pin to use by name or alternative name.
@item audio_pin_name
Select audio capture pin to use by name or alternative name.
@item crossbar_video_input_pin_number
Select video input pin number for crossbar device. This will be
routed to the crossbar device's Video Decoder output pin.
@item crossbar_audio_input_pin_number
Select audio input pin number for crossbar device. This will be
routed to the crossbar device's Audio Decoder output pin.
@end table
@subsection Examples

2
libavdevice/Makefile
View File

@ -19,7 +19,7 @@ OBJS-$(CONFIG_BKTR_INDEV) += bktr.o
OBJS-$(CONFIG_CACA_OUTDEV) += caca.o
OBJS-$(CONFIG_DECKLINK_OUTDEV) += decklink_enc.o decklink_enc_c.o decklink_common.o
OBJS-$(CONFIG_DECKLINK_INDEV) += decklink_dec.o decklink_dec_c.o decklink_common.o
OBJS-$(CONFIG_DSHOW_INDEV) += dshow.o dshow_enummediatypes.o \
OBJS-$(CONFIG_DSHOW_INDEV) += dshow_crossbar.o dshow.o dshow_enummediatypes.o \
dshow_enumpins.o dshow_filter.o \
dshow_pin.o dshow_common.o
OBJS-$(CONFIG_DV1394_INDEV) += dv1394.o

97
libavdevice/dshow.c
View File

@ -28,51 +28,6 @@
#include "avdevice.h"
#include "libavcodec/raw.h"
struct dshow_ctx {
const AVClass *class;
IGraphBuilder *graph;
char *device_name[2];
int video_device_number;
int audio_device_number;
int list_options;
int list_devices;
int audio_buffer_size;
char *video_pin_name;
char *audio_pin_name;
IBaseFilter *device_filter[2];
IPin *device_pin[2];
libAVFilter *capture_filter[2];
libAVPin *capture_pin[2];
HANDLE mutex;
HANDLE event[2]; /* event[0] is set by DirectShow
* event[1] is set by callback() */
AVPacketList *pktl;
int eof;
int64_t curbufsize[2];
unsigned int video_frame_num;
IMediaControl *control;
IMediaEvent *media_event;
enum AVPixelFormat pixel_format;
enum AVCodecID video_codec_id;
char *framerate;
int requested_width;
int requested_height;
AVRational requested_framerate;
int sample_rate;
int sample_size;
int channels;
};
static enum AVPixelFormat dshow_pixfmt(DWORD biCompression, WORD biBitCount)
{
@ -710,8 +665,7 @@ dshow_list_device_options(AVFormatContext *avctx, ICreateDevEnum *devenum,
}
static int
dshow_open_device(AVFormatContext *avctx, ICreateDevEnum *devenum,
enum dshowDeviceType devtype)
dshow_open_device(AVFormatContext *avctx, ICreateDevEnum *devenum, enum dshowDeviceType devtype)
{
struct dshow_ctx *ctx = avctx->priv_data;
IBaseFilter *device_filter = NULL;
@ -719,6 +673,7 @@ dshow_open_device(AVFormatContext *avctx, ICreateDevEnum *devenum,
IPin *device_pin = NULL;
libAVPin *capture_pin = NULL;
libAVFilter *capture_filter = NULL;
ICaptureGraphBuilder2 *graph_builder2 = NULL;
int ret = AVERROR(EIO);
int r;
@ -741,6 +696,7 @@ dshow_open_device(AVFormatContext *avctx, ICreateDevEnum *devenum,
ret = r;
goto error;
}
ctx->device_pin[devtype] = device_pin;
capture_filter = libAVFilter_Create(avctx, callback, devtype);
@ -761,15 +717,39 @@ dshow_open_device(AVFormatContext *avctx, ICreateDevEnum *devenum,
capture_pin = capture_filter->pin;
ctx->capture_pin[devtype] = capture_pin;
r = IGraphBuilder_ConnectDirect(graph, device_pin, (IPin *) capture_pin, NULL);
r = CoCreateInstance(&CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC_SERVER,
&IID_ICaptureGraphBuilder2, (void **) &graph_builder2);
if (r != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not connect pins\n");
av_log(avctx, AV_LOG_ERROR, "Could not create CaptureGraphBuilder2\n");
goto error;
}
ICaptureGraphBuilder2_SetFiltergraph(graph_builder2, graph);
if (r != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not set graph for CaptureGraphBuilder2\n");
goto error;
}
r = ICaptureGraphBuilder2_RenderStream(graph_builder2, NULL, NULL, (IUnknown *) device_pin, NULL /* no intermediate filter */,
(IBaseFilter *) capture_filter); /* connect pins, optionally insert intermediate filters like crossbar if necessary */
if (r != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not RenderStream to connect pins\n");
goto error;
}
r = dshow_try_setup_crossbar_options(graph_builder2, device_filter, devtype, avctx);
if (r != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not setup CrossBar\n");
goto error;
}
ret = 0;
error:
if (graph_builder2 != NULL)
ICaptureGraphBuilder2_Release(graph_builder2);
return ret;
}
@ -988,11 +968,15 @@ static int dshow_read_header(AVFormatContext *avctx)
}
if (ctx->list_options) {
if (ctx->device_name[VideoDevice])
dshow_list_device_options(avctx, devenum, VideoDevice);
if ((r = dshow_list_device_options(avctx, devenum, VideoDevice))) {
ret = r;
goto error;
}
if (ctx->device_name[AudioDevice])
dshow_list_device_options(avctx, devenum, AudioDevice);
ret = AVERROR_EXIT;
goto error;
if ((r = dshow_list_device_options(avctx, devenum, AudioDevice))) {
ret = r;
goto error;
}
}
if (ctx->device_name[VideoDevice]) {
@ -1009,6 +993,11 @@ static int dshow_read_header(AVFormatContext *avctx)
goto error;
}
}
if (ctx->list_options) {
/* allow it to list crossbar options in dshow_open_device */
ret = AVERROR_EXIT;
goto error;
}
ctx->curbufsize[0] = 0;
ctx->curbufsize[1] = 0;
ctx->mutex = CreateMutex(NULL, 0, NULL);
@ -1142,6 +1131,8 @@ static const AVOption options[] = {
{ "audio_device_number", "set audio device number for devices with same name (starts at 0)", OFFSET(audio_device_number), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, DEC },
{ "video_pin_name", "select video capture pin by name", OFFSET(video_pin_name),AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM },
{ "audio_pin_name", "select audio capture pin by name", OFFSET(audio_pin_name),AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM },
{ "crossbar_video_input_pin_number", "set video input pin number for crossbar device", OFFSET(crossbar_video_input_pin_number), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, DEC },
{ "crossbar_audio_input_pin_number", "set audio input pin number for crossbar device", OFFSET(crossbar_audio_input_pin_number), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, DEC },
{ NULL },
};

61
libavdevice/dshow_capture.h
View File

@ -277,4 +277,65 @@ long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
void libAVFilter_Destroy(libAVFilter *);
libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);
/*****************************************************************************
* dshow_ctx
****************************************************************************/
struct dshow_ctx {
const AVClass *class;
IGraphBuilder *graph;
char *device_name[2];
int video_device_number;
int audio_device_number;
int list_options;
int list_devices;
int audio_buffer_size;
int crossbar_video_input_pin_number;
int crossbar_audio_input_pin_number;
char *video_pin_name;
char *audio_pin_name;
int show_video_device_dialog;
int show_audio_device_dialog;
IBaseFilter *device_filter[2];
IPin *device_pin[2];
libAVFilter *capture_filter[2];
libAVPin *capture_pin[2];
HANDLE mutex;
HANDLE event[2]; /* event[0] is set by DirectShow
* event[1] is set by callback() */
AVPacketList *pktl;
int eof;
int64_t curbufsize[2];
unsigned int video_frame_num;
IMediaControl *control;
IMediaEvent *media_event;
enum AVPixelFormat pixel_format;
enum AVCodecID video_codec_id;
char *framerate;
int requested_width;
int requested_height;
AVRational requested_framerate;
int sample_rate;
int sample_size;
int channels;
};
/*****************************************************************************
* CrossBar
****************************************************************************/
HRESULT dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx);
void dshow_show_filter_properties(IBaseFilter *pFilter, AVFormatContext *avctx);
#endif /* AVDEVICE_DSHOW_H */

164
libavdevice/dshow_crossbar.c Normal file
View File

@ -0,0 +1,164 @@
/*
* DirectShow capture interface
* Copyright (c) 2015 Roger Pack
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "dshow_capture.h"
static const char *
GetPhysicalPinName(long pin_type)
{
switch (pin_type)
{
case PhysConn_Video_Tuner: return "Video Tuner";
case PhysConn_Video_Composite: return "Video Composite";
case PhysConn_Video_SVideo: return "S-Video";
case PhysConn_Video_RGB: return "Video RGB";
case PhysConn_Video_YRYBY: return "Video YRYBY";
case PhysConn_Video_SerialDigital: return "Video Serial Digital";
case PhysConn_Video_ParallelDigital: return "Video Parallel Digital";
case PhysConn_Video_SCSI: return "Video SCSI";
case PhysConn_Video_AUX: return "Video AUX";
case PhysConn_Video_1394: return "Video 1394";
case PhysConn_Video_USB: return "Video USB";
case PhysConn_Video_VideoDecoder: return "Video Decoder";
case PhysConn_Video_VideoEncoder: return "Video Encoder";
case PhysConn_Audio_Tuner: return "Audio Tuner";
case PhysConn_Audio_Line: return "Audio Line";
case PhysConn_Audio_Mic: return "Audio Microphone";
case PhysConn_Audio_AESDigital: return "Audio AES/EBU Digital";
case PhysConn_Audio_SPDIFDigital: return "Audio S/PDIF";
case PhysConn_Audio_SCSI: return "Audio SCSI";
case PhysConn_Audio_AUX: return "Audio AUX";
case PhysConn_Audio_1394: return "Audio 1394";
case PhysConn_Audio_USB: return "Audio USB";
case PhysConn_Audio_AudioDecoder: return "Audio Decoder";
default: return "Unknown Crossbar Pin Type—Please report!";
}
}
static HRESULT
setup_crossbar_options(IAMCrossbar *cross_bar, enum dshowDeviceType devtype, AVFormatContext *avctx)
{
struct dshow_ctx *ctx = avctx->priv_data;
long count_output_pins, count_input_pins;
int i;
int log_level = ctx->list_options ? AV_LOG_INFO : AV_LOG_DEBUG;
int video_input_pin = ctx->crossbar_video_input_pin_number;
int audio_input_pin = ctx->crossbar_audio_input_pin_number;
const char *device_name = ctx->device_name[devtype];
HRESULT hr;
av_log(avctx, log_level, "Crossbar Switching Information for %s:\n", device_name);
hr = IAMCrossbar_get_PinCounts(cross_bar, &count_output_pins, &count_input_pins);
if (hr != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Unable to get crossbar pin counts\n");
return hr;
}
for (i = 0; i < count_output_pins; i++)
{
long related_pin, pin_type, route_to_pin;
hr = IAMCrossbar_get_CrossbarPinInfo(cross_bar, FALSE, i, &related_pin, &pin_type);
if (pin_type == PhysConn_Video_VideoDecoder) {
/* assume there is only one "Video (and one Audio) Decoder" output pin, and it's all we care about routing to...for now */
if (video_input_pin != -1) {
av_log(avctx, log_level, "Routing video input from pin %d\n", video_input_pin);
hr = IAMCrossbar_Route(cross_bar, i, video_input_pin);
if (hr != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Unable to route video input from pin %d\n", video_input_pin);
return AVERROR(EIO);
}
}
} else if (pin_type == PhysConn_Audio_AudioDecoder) {
if (audio_input_pin != -1) {
av_log(avctx, log_level, "Routing audio input from pin %d\n", audio_input_pin);
hr = IAMCrossbar_Route(cross_bar, i, audio_input_pin);
if (hr != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Unable to route audio input from pin %d\n", audio_input_pin);
return hr;
}
}
} else {
av_log(avctx, AV_LOG_WARNING, "Unexpected output pin type, please report the type if you want to use this (%s)", GetPhysicalPinName(pin_type));
}
hr = IAMCrossbar_get_IsRoutedTo(cross_bar, i, &route_to_pin);
if (hr != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Unable to get crossbar is routed to from pin %d\n", i);
return hr;
}
av_log(avctx, log_level, " Crossbar Output pin %d: \"%s\" related output pin: %ld ", i, GetPhysicalPinName(pin_type), related_pin);
av_log(avctx, log_level, "current input pin: %ld ", route_to_pin);
av_log(avctx, log_level, "compatible input pins: ");
for (int j = 0; j < count_input_pins; j++)
{
hr = IAMCrossbar_CanRoute(cross_bar, i, j);
if (hr == S_OK)
av_log(avctx, log_level ,"%d ", j);
}
av_log(avctx, log_level, "\n");
}
for (i = 0; i < count_input_pins; i++)
{
long related_pin, pin_type;
hr = IAMCrossbar_get_CrossbarPinInfo(cross_bar, TRUE, i, &related_pin, &pin_type);
if (hr != S_OK) {
av_log(avctx, AV_LOG_ERROR, "unable to get crossbar info audio input from pin %d\n", i);
return hr;
}
av_log(avctx, log_level, " Crossbar Input pin %d - \"%s\" ", i, GetPhysicalPinName(pin_type));
av_log(avctx, log_level, "related input pin: %ld\n", related_pin);
}
return S_OK;
}
/**
* Given a fully constructed graph, check if there is a cross bar filter, and configure its pins if so.
*/
HRESULT
dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx)
{
IAMCrossbar *cross_bar = NULL;
IBaseFilter *cross_bar_filter = NULL;
HRESULT hr;
hr = ICaptureGraphBuilder2_FindInterface(graph_builder2, &LOOK_UPSTREAM_ONLY, (const GUID *) NULL,
(IBaseFilter *) device_filter, &IID_IAMCrossbar, (void**) &cross_bar);
if (hr != S_OK) {
/* no crossbar found */
hr = S_OK;
goto end;
}
hr = setup_crossbar_options(cross_bar, devtype, avctx);
if (hr != S_OK)
goto end;
end:
if (cross_bar)
IAMCrossbar_Release(cross_bar);
if (cross_bar_filter)
IBaseFilter_Release(cross_bar_filter);
return hr;
}