On Fri, Aug 21, 2015 at 08:04:00PM +0200, Máté Sebők wrote: > Hi, > > Due to various problems, it's only got this far: > - can list DTV Tuners and Receiver Components (in a bit akward way) > - ATSC / DVB-T /-S /-C can be selected > - DTV channels can be tuned in only to frequency > - only video can be recorded/recoded > - only mpeg2/NTSC ( ATSC ) works now... others just hangs or crash due to > video format differences between graph connection time and running the graph > - there is an optional graph (grf) export > > The mingw64 has broken signatures for a lot of BDA / DVB components, that > needs to be replaced with the attached tuner.h.
[...]
> diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c
> index 6224978..5c87563 100644
> --- a/libavdevice/dshow.c
> +++ b/libavdevice/dshow.c
> @@ -29,6 +29,28 @@
> #include "libavcodec/raw.h"
> #include "objidl.h"
> #include "shlwapi.h"
> +#include "tuner.h"
> +#include "bdadefs.h"
> +
> +
> +const CLSID CLSID_NetworkProvider =
> + {0xB2F3A67C,0x29DA,0x4C78,{0x88,0x31,0x09,0x1E,0xD5,0x09,0xA4,0x75}};
> +const GUID KSCATEGORY_BDA_NETWORK_TUNER =
> + {0x71985f48,0x1ca1,0x11d3,{0x9c,0xc8,0x00,0xc0,0x4f,0x79,0x71,0xe0}};
> +const GUID KSCATEGORY_BDA_RECEIVER_COMPONENT =
> + {0xFD0A5AF4,0xB41D,0x11d2,{0x9c,0x95,0x00,0xc0,0x4f,0x79,0x71,0xe0}};
> +const GUID KSCATEGORY_BDA_TRANSPORT_INFORMATION =
> + {0xa2e3074f,0x6c3d,0x11d3,{0xb6,0x53,0x00,0xc0,0x4f,0x79,0x49,0x8e}};
these either need to be static or have a ff/avpriv prefix
[..]
> +
> + capture_filter = libAVFilter_Create(avctx, callback, VideoDevice);
> + if (!capture_filter) {
> + av_log(avctx, AV_LOG_ERROR, "Could not create grabber
> filter.\n");
> + goto error;
> + }
> + ctx->capture_filter[VideoDevice] = capture_filter;
> +
> + r = IGraphBuilder_AddFilter(graph, (IBaseFilter *) capture_filter,
> + filter_name[VideoDevice]);
> + if (r != S_OK) {
> + av_log(avctx, AV_LOG_ERROR, "Could not add capture filter to
> graph\n");
> + goto error;
> + }
> +
> + libAVPin_AddRef(capture_filter->pin);
> + capture_pin = capture_filter->pin;
> + ctx->capture_pin[VideoDevice] = capture_pin;
> +
> + av_log(avctx, AV_LOG_INFO, "Video capture filter added to graph\n");
> +
> + if(!bda_src) {
> + av_log(avctx, AV_LOG_ERROR, "No output from bda source\n");
> + goto error;
> + }
> +
> + 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 create
> CaptureGraphBuilder2\n");
> + goto error;
> + }
> +
> + r = 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 *) bda_src, 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;
> + }
> +
> +
> + if (graph_builder2 != NULL)
> + ICaptureGraphBuilder2_Release(graph_builder2);
> +
> + if (ctx->dtv_graph_file) {
> + const WCHAR wszStreamName[] = L"ActiveMovieGraph";
> + IStorage *p_storage = NULL;
> + IStream *ofile_stream = NULL;
> + IPersistStream *pers_stream = NULL;
> + WCHAR *gfilename = NULL;
> +
> + gfilename =
> malloc((strlen(ctx->dtv_graph_file)+4)*sizeof(WCHAR));
is this intended to be malloc() instead of av_malloc() ?
[...]
> diff --git a/libavdevice/dshow_capture.h b/libavdevice/dshow_capture.h
> index ae2f1d3..0b6f369 100644
> --- a/libavdevice/dshow_capture.h
> +++ b/libavdevice/dshow_capture.h
> @@ -22,7 +22,7 @@
> #ifndef AVDEVICE_DSHOW_H
> #define AVDEVICE_DSHOW_H
>
> -#define DSHOWDEBUG 0
> +#define DSHOWDEBUG 1
>
> #include "avdevice.h"
>
stray change
> @@ -51,6 +51,7 @@ extern const AVClass *ff_dshow_context_class_ptr;
> #define dshowdebug(...)
> #endif
>
> +
> static inline void nothing(void *foo)
> {
> }
stray change
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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