Fixed mediacodec backend

* Link directly, no runtime linking. (It is part of the NDK for API >=
  21)
* Fix problems with functions introduced with API 26 and 28
This commit is contained in:
Armin Novak 2022-02-24 10:55:45 +01:00 committed by akallabeth
parent 6dfd490351
commit ac98dfa502
2 changed files with 64 additions and 256 deletions

View File

@ -251,6 +251,9 @@ endif()
if(ANDROID AND WITH_MEDIACODEC)
list(APPEND CODEC_SRCS codec/h264_mediacodec.c)
find_library(MEDIACODEC mediandk REQUIRED)
freerdp_library_add(${MEDIACODEC})
endif()
freerdp_module_add(${CODEC_SRCS})

View File

@ -29,61 +29,6 @@
#include "h264.h"
#define RESOLVE_MEDIANDK_FUNC(sys, name) \
({ \
BOOL rc = TRUE; \
sys->fn##name = GetProcAddress(sys->mediandkLibrary, #name); \
if (sys->fn##name == NULL) \
{ \
WLog_Print(h264->log, WLOG_ERROR, \
"Error resolving function " #name " from libmediandk.so"); \
rc = FALSE; \
} \
rc; \
})
#define RESOLVE_MEDIANDK_VARIABLE(sys, member, exported) \
({ \
BOOL rc = FALSE; \
const char** temp = GetProcAddress(sys->mediandkLibrary, exported); \
if (temp == NULL) \
{ \
WLog_Print(h264->log, WLOG_ERROR, \
"Error resolving variable " exported " from libmediandk.so"); \
} \
else \
{ \
sys->member = *temp; \
rc = TRUE; \
} \
rc; \
})
typedef AMediaFormat* (*AMediaFormat_new_t)(void);
typedef media_status_t (*AMediaFormat_delete_t)(AMediaFormat*);
typedef const char* (*AMediaFormat_toString_t)(AMediaFormat*);
typedef bool (*AMediaFormat_getInt32_t)(AMediaFormat*, const char*, int32_t*);
typedef void (*AMediaFormat_setInt32_t)(AMediaFormat*, const char*, int32_t);
typedef void (*AMediaFormat_setString_t)(AMediaFormat*, const char*, const char*);
typedef AMediaCodec* (*AMediaCodec_createDecoderByType_t)(const char*);
typedef media_status_t (*AMediaCodec_delete_t)(AMediaCodec*);
typedef media_status_t (*AMediaCodec_configure_t)(AMediaCodec*, const AMediaFormat*, ANativeWindow*,
AMediaCrypto*, uint32_t);
typedef media_status_t (*AMediaCodec_start_t)(AMediaCodec*);
typedef media_status_t (*AMediaCodec_stop_t)(AMediaCodec*);
typedef uint8_t* (*AMediaCodec_getInputBuffer_t)(AMediaCodec*, size_t, size_t*);
typedef uint8_t* (*AMediaCodec_getOutputBuffer_t)(AMediaCodec*, size_t, size_t*);
typedef ssize_t (*AMediaCodec_dequeueInputBuffer_t)(AMediaCodec*, int64_t);
typedef media_status_t (*AMediaCodec_queueInputBuffer_t)(AMediaCodec*, size_t, ssize_t, size_t,
uint64_t, uint32_t);
typedef ssize_t (*AMediaCodec_dequeueOutputBuffer_t)(AMediaCodec*, AMediaCodecBufferInfo*, int64_t);
typedef AMediaFormat* (*AMediaCodec_getOutputFormat_t)(AMediaCodec*);
typedef media_status_t (*AMediaCodec_releaseOutputBuffer_t)(AMediaCodec*, size_t, bool);
typedef media_status_t (*AMediaCodec_setParameters_t)(AMediaCodec*, const AMediaFormat*); // 26
typedef media_status_t (*AMediaCodec_getName_t)(AMediaCodec*, char**); // 28
typedef void (*AMediaCodec_releaseName_t)(AMediaCodec*, char*); // 28
typedef AMediaFormat* (*AMediaCodec_getInputFormat_t)(AMediaCodec*); // 28
static const int COLOR_FormatYUV420Planar = 19;
static const int COLOR_FormatYUV420Flexible = 0x7f420888;
@ -101,157 +46,35 @@ typedef struct
int32_t outputWidth;
int32_t outputHeight;
ssize_t currentOutputBufferIndex;
// libmediandk.so imports
HMODULE mediandkLibrary;
AMediaFormat_new_t fnAMediaFormat_new;
AMediaFormat_delete_t fnAMediaFormat_delete;
AMediaFormat_toString_t fnAMediaFormat_toString;
AMediaFormat_getInt32_t fnAMediaFormat_getInt32;
AMediaFormat_setInt32_t fnAMediaFormat_setInt32;
AMediaFormat_setString_t fnAMediaFormat_setString;
AMediaCodec_createDecoderByType_t fnAMediaCodec_createDecoderByType;
AMediaCodec_delete_t fnAMediaCodec_delete;
AMediaCodec_configure_t fnAMediaCodec_configure;
AMediaCodec_start_t fnAMediaCodec_start;
AMediaCodec_stop_t fnAMediaCodec_stop;
AMediaCodec_getInputBuffer_t fnAMediaCodec_getInputBuffer;
AMediaCodec_getOutputBuffer_t fnAMediaCodec_getOutputBuffer;
AMediaCodec_dequeueInputBuffer_t fnAMediaCodec_dequeueInputBuffer;
AMediaCodec_queueInputBuffer_t fnAMediaCodec_queueInputBuffer;
AMediaCodec_dequeueOutputBuffer_t fnAMediaCodec_dequeueOutputBuffer;
AMediaCodec_getOutputFormat_t fnAMediaCodec_getOutputFormat;
AMediaCodec_releaseOutputBuffer_t fnAMediaCodec_releaseOutputBuffer;
AMediaCodec_setParameters_t fnAMediaCodec_setParameters;
AMediaCodec_getName_t fnAMediaCodec_getName;
AMediaCodec_releaseName_t fnAMediaCodec_releaseName;
AMediaCodec_getInputFormat_t fnAMediaCodec_getInputFormat;
const char* gAMediaFormatKeyMime;
const char* gAMediaFormatKeyWidth;
const char* gAMediaFormatKeyHeight;
const char* gAMediaFormatKeyColorFormat;
} H264_CONTEXT_MEDIACODEC;
static int load_libmediandk(H264_CONTEXT* h264)
static AMediaFormat* mediacodec_format_new(wLog* log, int width, int height)
{
BOOL rc;
H264_CONTEXT_MEDIACODEC* sys;
WINPR_ASSERT(h264);
sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
WINPR_ASSERT(sys);
WLog_Print(h264->log, WLOG_DEBUG, "MediaCodec Loading libmediandk.so");
sys->mediandkLibrary = LoadLibraryA("libmediandk.so");
if (sys->mediandkLibrary == NULL)
const char* media_format;
AMediaFormat* format = AMediaFormat_new();
if (format == NULL)
{
WLog_Print(h264->log, WLOG_WARN, "Error loading libmediandk.so");
return -1;
WLog_Print(log, WLOG_ERROR, "AMediaFormat_new failed");
return NULL;
}
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaFormat_new);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaFormat_delete);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaFormat_toString);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaFormat_getInt32);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaFormat_setInt32);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaFormat_setString);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_createDecoderByType);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_delete);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_configure);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_start);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_stop);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_getInputBuffer);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_getOutputBuffer);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_dequeueInputBuffer);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_queueInputBuffer);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_dequeueOutputBuffer);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_getOutputFormat);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_releaseOutputBuffer);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_setParameters);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_getName);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_releaseName);
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_FUNC(sys, AMediaCodec_getInputFormat);
if (!rc)
return -1;
AMediaFormat_setString(format, AMEDIAFORMAT_KEY_MIME, "video/avc");
AMediaFormat_setInt32(format, AMEDIAFORMAT_KEY_WIDTH, width);
AMediaFormat_setInt32(format, AMEDIAFORMAT_KEY_HEIGHT, height);
AMediaFormat_setInt32(format, AMEDIAFORMAT_KEY_COLOR_FORMAT, COLOR_FormatYUV420Planar);
rc = RESOLVE_MEDIANDK_VARIABLE(sys, gAMediaFormatKeyMime, "AMEDIAFORMAT_KEY_MIME");
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_VARIABLE(sys, gAMediaFormatKeyWidth, "AMEDIAFORMAT_KEY_WIDTH");
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_VARIABLE(sys, gAMediaFormatKeyHeight, "AMEDIAFORMAT_KEY_HEIGHT");
if (!rc)
return -1;
rc = RESOLVE_MEDIANDK_VARIABLE(sys, gAMediaFormatKeyColorFormat,
"AMEDIAFORMAT_KEY_COLOR_FORMAT");
if (!rc)
return -1;
return 0;
}
static void unload_libmediandk(H264_CONTEXT* h264)
{
H264_CONTEXT_MEDIACODEC* sys;
WINPR_ASSERT(h264);
sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
WINPR_ASSERT(sys);
if (NULL == sys->mediandkLibrary)
media_format = AMediaFormat_toString(format);
if (media_format == NULL)
{
return;
WLog_Print(log, WLOG_ERROR, "AMediaFormat_toString failed");
AMediaFormat_delete(format);
return NULL;
}
FreeLibrary(sys->mediandkLibrary);
WLog_Print(log, WLOG_DEBUG, "MediaCodec configuring with desired output format [%s]",
media_format);
return format;
}
static void set_mediacodec_format(H264_CONTEXT* h264, AMediaFormat** formatVariable,
@ -266,9 +89,12 @@ static void set_mediacodec_format(H264_CONTEXT* h264, AMediaFormat** formatVaria
sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
WINPR_ASSERT(sys);
if (*formatVariable == newFormat)
return;
if (*formatVariable != NULL)
{
status = sys->fnAMediaFormat_delete(*formatVariable);
status = AMediaFormat_delete(*formatVariable);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaFormat_delete %d", status);
@ -289,15 +115,19 @@ static int update_mediacodec_inputformat(H264_CONTEXT* h264)
sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
WINPR_ASSERT(sys);
inputFormat = sys->fnAMediaCodec_getInputFormat(sys->decoder);
#if __ANDROID__ >= 21
inputFormat = AMediaCodec_getInputFormat(sys->decoder);
if (inputFormat == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getInputFormat failed");
return -1;
}
#else
inputFormat = sys->inputFormat;
#endif
set_mediacodec_format(h264, &sys->inputFormat, inputFormat);
mediaFormatName = sys->fnAMediaFormat_toString(sys->inputFormat);
mediaFormatName = AMediaFormat_toString(sys->inputFormat);
if (mediaFormatName == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_toString failed");
@ -321,7 +151,7 @@ static int update_mediacodec_outputformat(H264_CONTEXT* h264)
sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
WINPR_ASSERT(sys);
outputFormat = sys->fnAMediaCodec_getOutputFormat(sys->decoder);
outputFormat = AMediaCodec_getOutputFormat(sys->decoder);
if (outputFormat == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getOutputFormat failed");
@ -329,7 +159,7 @@ static int update_mediacodec_outputformat(H264_CONTEXT* h264)
}
set_mediacodec_format(h264, &sys->outputFormat, outputFormat);
mediaFormatName = sys->fnAMediaFormat_toString(sys->outputFormat);
mediaFormatName = AMediaFormat_toString(sys->outputFormat);
if (mediaFormatName == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_toString failed");
@ -338,14 +168,13 @@ static int update_mediacodec_outputformat(H264_CONTEXT* h264)
WLog_Print(h264->log, WLOG_DEBUG, "Using MediaCodec with output MediaFormat [%s]",
mediaFormatName);
if (!sys->fnAMediaFormat_getInt32(sys->outputFormat, sys->gAMediaFormatKeyWidth, &outputWidth))
if (!AMediaFormat_getInt32(sys->outputFormat, AMEDIAFORMAT_KEY_WIDTH, &outputWidth))
{
WLog_Print(h264->log, WLOG_ERROR, "fnAMediaFormat_getInt32 failed getting width");
return -1;
}
if (!sys->fnAMediaFormat_getInt32(sys->outputFormat, sys->gAMediaFormatKeyHeight,
&outputHeight))
if (!AMediaFormat_getInt32(sys->outputFormat, AMEDIAFORMAT_KEY_HEIGHT, &outputHeight))
{
WLog_Print(h264->log, WLOG_ERROR, "fnAMediaFormat_getInt32 failed getting height");
return -1;
@ -371,8 +200,7 @@ static void release_current_outputbuffer(H264_CONTEXT* h264)
return;
}
status =
sys->fnAMediaCodec_releaseOutputBuffer(sys->decoder, sys->currentOutputBufferIndex, FALSE);
status = AMediaCodec_releaseOutputBuffer(sys->decoder, sys->currentOutputBufferIndex, FALSE);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_releaseOutputBuffer %d", status);
@ -433,15 +261,20 @@ static int mediacodec_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT3
WLog_Print(h264->log, WLOG_DEBUG, "MediaCodec setting new input width and height [%d,%d]",
sys->width, sys->height);
sys->fnAMediaFormat_setInt32(sys->inputFormat, sys->gAMediaFormatKeyWidth, sys->width);
sys->fnAMediaFormat_setInt32(sys->inputFormat, sys->gAMediaFormatKeyHeight, sys->height);
status = sys->fnAMediaCodec_setParameters(sys->decoder, sys->inputFormat);
#if __ANDROID__ >= 26
AMediaFormat_setInt32(sys->inputFormat, AMEDIAFORMAT_KEY_WIDTH, sys->width);
AMediaFormat_setInt32(sys->inputFormat, AMEDIAFORMAT_KEY_HEIGHT, sys->height);
status = AMediaCodec_setParameters(sys->decoder, sys->inputFormat);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_setParameters failed: %d", status);
return -1;
}
#else
set_mediacodec_format(h264, &sys->inputFormat,
mediacodec_format_new(h264->log, sys->width, sys->height));
#endif
// The codec can change output width and height
if (update_mediacodec_outputformat(h264) < 0)
@ -457,7 +290,7 @@ static int mediacodec_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT3
while (inputBufferCurrnetOffset < SrcSize)
{
UINT32 numberOfBytesToCopy = SrcSize - inputBufferCurrnetOffset;
inputBufferId = sys->fnAMediaCodec_dequeueInputBuffer(sys->decoder, -1);
inputBufferId = AMediaCodec_dequeueInputBuffer(sys->decoder, -1);
if (inputBufferId < 0)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_dequeueInputBuffer failed [%d]",
@ -466,8 +299,7 @@ static int mediacodec_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT3
continue;
}
inputBuffer =
sys->fnAMediaCodec_getInputBuffer(sys->decoder, inputBufferId, &inputBufferSize);
inputBuffer = AMediaCodec_getInputBuffer(sys->decoder, inputBufferId, &inputBufferSize);
if (inputBuffer == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getInputBuffer failed");
@ -485,8 +317,8 @@ static int mediacodec_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT3
memcpy(inputBuffer, pSrcData + inputBufferCurrnetOffset, numberOfBytesToCopy);
inputBufferCurrnetOffset += numberOfBytesToCopy;
status = sys->fnAMediaCodec_queueInputBuffer(sys->decoder, inputBufferId, 0,
numberOfBytesToCopy, 0, 0);
status = AMediaCodec_queueInputBuffer(sys->decoder, inputBufferId, 0,
numberOfBytesToCopy, 0, 0);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_queueInputBuffer %d", status);
@ -497,15 +329,14 @@ static int mediacodec_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT3
while (true)
{
AMediaCodecBufferInfo bufferInfo;
ssize_t outputBufferId =
sys->fnAMediaCodec_dequeueOutputBuffer(sys->decoder, &bufferInfo, -1);
ssize_t outputBufferId = AMediaCodec_dequeueOutputBuffer(sys->decoder, &bufferInfo, -1);
if (outputBufferId >= 0)
{
sys->currentOutputBufferIndex = outputBufferId;
uint8_t* outputBuffer;
outputBuffer = sys->fnAMediaCodec_getOutputBuffer(sys->decoder, outputBufferId,
&outputBufferSize);
outputBuffer =
AMediaCodec_getOutputBuffer(sys->decoder, outputBufferId, &outputBufferSize);
sys->currentOutputBufferIndex = outputBufferId;
if (outputBufferSize !=
@ -582,13 +413,13 @@ static void mediacodec_uninit(H264_CONTEXT* h264)
if (sys->decoder != NULL)
{
release_current_outputbuffer(h264);
status = sys->fnAMediaCodec_stop(sys->decoder);
status = AMediaCodec_stop(sys->decoder);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_stop %d", status);
}
status = sys->fnAMediaCodec_delete(sys->decoder);
status = AMediaCodec_delete(sys->decoder);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_delete %d", status);
@ -600,8 +431,6 @@ static void mediacodec_uninit(H264_CONTEXT* h264)
set_mediacodec_format(h264, &sys->inputFormat, NULL);
set_mediacodec_format(h264, &sys->outputFormat, NULL);
unload_libmediandk(h264);
free(sys);
h264->pSystemData = NULL;
}
@ -610,8 +439,6 @@ static BOOL mediacodec_init(H264_CONTEXT* h264)
{
H264_CONTEXT_MEDIACODEC* sys;
media_status_t status;
const char* media_format;
char* codec_name;
WINPR_ASSERT(h264);
@ -632,24 +459,21 @@ static BOOL mediacodec_init(H264_CONTEXT* h264)
h264->pSystemData = (void*)sys;
if (load_libmediandk(h264) < 0)
{
goto EXCEPTION;
}
sys->currentOutputBufferIndex = -1;
// updated when we're given the height and width for the first time
sys->width = sys->outputWidth = MEDIACODEC_MINIMUM_WIDTH;
sys->height = sys->outputHeight = MEDIACODEC_MINIMUM_HEIGHT;
sys->decoder = sys->fnAMediaCodec_createDecoderByType("video/avc");
sys->decoder = AMediaCodec_createDecoderByType("video/avc");
if (sys->decoder == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_createCodecByName failed");
goto EXCEPTION;
}
status = sys->fnAMediaCodec_getName(sys->decoder, &codec_name);
#if __ANDROID_API__ >= 28
char* codec_name;
status = AMediaCodec_getName(sys->decoder, &codec_name);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getName failed: %d", status);
@ -657,32 +481,13 @@ static BOOL mediacodec_init(H264_CONTEXT* h264)
}
WLog_Print(h264->log, WLOG_DEBUG, "MediaCodec using video/avc codec [%s]", codec_name);
sys->fnAMediaCodec_releaseName(sys->decoder, codec_name);
AMediaCodec_releaseName(sys->decoder, codec_name);
#endif
sys->inputFormat = sys->fnAMediaFormat_new();
if (sys->inputFormat == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_new failed");
goto EXCEPTION;
}
set_mediacodec_format(h264, &sys->inputFormat,
mediacodec_format_new(h264->log, sys->width, sys->height));
sys->fnAMediaFormat_setString(sys->inputFormat, sys->gAMediaFormatKeyMime, "video/avc");
sys->fnAMediaFormat_setInt32(sys->inputFormat, sys->gAMediaFormatKeyWidth, sys->width);
sys->fnAMediaFormat_setInt32(sys->inputFormat, sys->gAMediaFormatKeyHeight, sys->height);
sys->fnAMediaFormat_setInt32(sys->inputFormat, sys->gAMediaFormatKeyColorFormat,
COLOR_FormatYUV420Planar);
media_format = sys->fnAMediaFormat_toString(sys->inputFormat);
if (media_format == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_toString failed");
goto EXCEPTION;
}
WLog_Print(h264->log, WLOG_DEBUG, "MediaCodec configuring with desired output format [%s]",
media_format);
status = sys->fnAMediaCodec_configure(sys->decoder, sys->inputFormat, NULL, NULL, 0);
status = AMediaCodec_configure(sys->decoder, sys->inputFormat, NULL, NULL, 0);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_configure failed: %d", status);
@ -702,7 +507,7 @@ static BOOL mediacodec_init(H264_CONTEXT* h264)
}
WLog_Print(h264->log, WLOG_DEBUG, "Starting MediaCodec");
status = sys->fnAMediaCodec_start(sys->decoder);
status = AMediaCodec_start(sys->decoder);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_start failed %d", status);