path: root/spdifenc_wrap.cpp (plain)
blob: 94878e06c579e12fd52b0e7b26926394a1cebe0c

1	//#define LOG_NDEBUG 0
2	#define LOG_TAG "AudioSPDIF-wrap"
3	#include <stdint.h>
4	#include <utils/Log.h>
5	#include <system/audio.h>
6	#include <audio_utils/spdif/SPDIFEncoder.h>
7	#include <tinyalsa/asoundlib.h>
8	#include <cutils/properties.h>
9
10	extern "C"
11	{
12	#include "audio_hw_utils.h"
13	}
14
15	namespace android
16	{
17	class MySPDIFEncoder : public SPDIFEncoder
18	{
19	public:
20	MySPDIFEncoder(struct pcm *mypcm, audio_format_t format)
21	: SPDIFEncoder(format),
22	pcm_handle(mypcm), mTotalBytes(0), eac3_frame(0), mformat(format)
23	{};
24	virtual ssize_t writeOutput(const void* buffer, size_t bytes)
25	{
26	int ret = -1;
27	ALOGV("write size %zu \n", bytes);
28	#if 1
29	if (getprop_bool("media.spdif.outdump")) {
30	FILE *fp1 = fopen("/data/tmp/hdmi_audio_out.spdif", "a+");
31	if (fp1) {
32	int flen = fwrite((char *)buffer, 1, bytes, fp1);
33	//LOGFUNC("flen = %d---outlen=%d ", flen, out_frames * frame_size);
34	fclose(fp1);
35	} else {
36	//LOGFUNC("could not open file:/data/hdmi_audio_out.pcm");
37	}
38	}
39	#endif
40	mTotalBytes += bytes;
41	ret = pcm_write(pcm_handle, buffer, bytes);
42	if (ret)
43	return ret;
44
45	return bytes;
46	}
47	virtual uint64_t total_bytes()
48	{
49	return mTotalBytes;
50	}
51	protected:
52	struct pcm *pcm_handle;
53	private:
54	uint64_t mTotalBytes;
55	uint64_t eac3_frame;
56	audio_format_t mformat;
57	};
58	static MySPDIFEncoder *myencoder = NULL;
59	extern "C" int spdifenc_init(struct pcm *mypcm, audio_format_t format)
60	{
61	if (myencoder) {
62	delete myencoder;
63	myencoder = NULL;
64	}
65	myencoder = new MySPDIFEncoder(mypcm, format);
66	if (myencoder == NULL) {
67	ALOGE("init SPDIFEncoder failed \n");
68	return -1;
69	}
70	ALOGI("init SPDIFEncoder done\n");
71	return 0;
72	}
73	extern "C" int spdifenc_write(const void *buffer, size_t numBytes)
74	{
75	return myencoder->write(buffer, numBytes);
76	}
77	extern "C" uint64_t spdifenc_get_total()
78	{
79	return myencoder->total_bytes();
80	}
81	}
82