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adding mediacodec h264 implementation using NDK

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This commit is contained in:
Ely Ronnen
2022-01-07 16:08:45 +02:00
committed by akallabeth
parent b698041d9f
commit 52202762e8
6 changed files with 391 additions and 1 deletions
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2
CMakeLists.txt
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@@ -845,7 +845,7 @@ if(MBEDTLS_FOUND)
add_definitions("-DWITH_MBEDTLS")
endif()
if (WITH_OPENH264 OR WITH_MEDIA_FOUNDATION OR WITH_FFMPEG)
if (WITH_OPENH264 OR WITH_MEDIA_FOUNDATION OR WITH_FFMPEG OR WITH_MEDIACODEC)
set(WITH_GFX_H264 ON)
else()
set(WITH_GFX_H264 OFF)

2
cmake/ConfigOptions.cmake
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@@ -164,6 +164,8 @@ option(WITH_SWSCALE "Use SWScale image library for screen resizing" OFF)
if (ANDROID)
include(ConfigOptionsAndroid)
else()
option(WITH_MEDIACODEC "Use MediaCodec API" OFF)
endif(ANDROID)
if (IOS)

1
config.h.in
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@@ -55,6 +55,7 @@
#cmakedefine WITH_DSP_FFMPEG
#cmakedefine WITH_OPENCL
#cmakedefine WITH_MEDIA_FOUNDATION
#cmakedefine WITH_MEDIACODEC
#cmakedefine WITH_VAAPI

5
libfreerdp/CMakeLists.txt
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@@ -249,6 +249,11 @@ if(WIN32 AND WITH_MEDIA_FOUNDATION)
set(CODEC_SRCS ${CODEC_SRCS} codec/h264_mf.c)
endif()
if(ANDROID AND WITH_MEDIACODEC)
set(CODEC_SRCS ${CODEC_SRCS} codec/h264_mediacodec.c)
freerdp_library_add("libmediandk.so")
endif()
freerdp_module_add(${CODEC_SRCS})
if(BUILD_TESTING)

7
libfreerdp/codec/h264.c
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@@ -582,6 +582,13 @@ static BOOL CALLBACK h264_register_subsystems(PINIT_ONCE once, PVOID param, PVOI
i++;
}
#endif
#ifdef WITH_MEDIACODEC
{
extern H264_CONTEXT_SUBSYSTEM g_Subsystem_mediacodec;
subSystems[i] = &g_Subsystem_mediacodec;
i++;
}
#endif
#ifdef WITH_OPENH264
{
extern H264_CONTEXT_SUBSYSTEM g_Subsystem_OpenH264;

375
libfreerdp/codec/h264_mediacodec.c Normal file
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@@ -0,0 +1,375 @@
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* H.264 Bitmap Compression
*
* Copyright 2022 Ely Ronnen <elyronnen@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <winpr/wlog.h>
#include <freerdp/log.h>
#include <freerdp/codec/h264.h>
#include <media/NdkMediaCodec.h>
#include <media/NdkMediaFormat.h>
#include "h264.h"
const int COLOR_FormatYUV420Planar = 19;
const int COLOR_FormatYUV420Flexible = 0x7f420888;
struct _H264_CONTEXT_MEDIACODEC
{
AMediaCodec* decoder;
AMediaFormat* inputFormat;
AMediaFormat* outputFormat;
int32_t width;
int32_t height;
ssize_t currentOutputBufferIndex;
};
typedef struct _H264_CONTEXT_MEDIACODEC H264_CONTEXT_MEDIACODEC;
static void set_mediacodec_format(H264_CONTEXT* h264, AMediaFormat** formatVariable, AMediaFormat* newFormat)
{
media_status_t status = AMEDIA_OK;
if (*formatVariable != NULL)
{
status = AMediaFormat_delete(*formatVariable);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaFormat_delete %d", status);
}
}
*formatVariable = newFormat;
}
static void release_current_outputbuffer(H264_CONTEXT* h264)
{
H264_CONTEXT_MEDIACODEC* sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
media_status_t status = AMEDIA_OK;
if (sys->currentOutputBufferIndex < 0)
{
return;
}
status = AMediaCodec_releaseOutputBuffer(sys->decoder, sys->currentOutputBufferIndex, FALSE);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_releaseOutputBuffer %d", status);
}
sys->currentOutputBufferIndex = -1;
}
static int mediacodec_compress(H264_CONTEXT* h264, const BYTE** pSrcYuv, const UINT32* pStride,
BYTE** ppDstData, UINT32* pDstSize)
{
WLog_Print(h264->log, WLOG_ERROR, "MediaCodec is not supported as an encoder");
return -1;
}
static int mediacodec_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT32 SrcSize)
{
H264_CONTEXT_MEDIACODEC* sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
ssize_t inputBufferId = -1;
size_t inputBufferSize, outputBufferSize;
uint8_t* inputBuffer;
media_status_t status;
const char* media_format;
BYTE** pYUVData = h264->pYUVData;
UINT32* iStride = h264->iStride;
release_current_outputbuffer(h264);
if (sys->width == 0)
{
int32_t width = h264->width;
int32_t height = h264->height;
if (width % 16 != 0)
width += 16 - width % 16;
if (height % 16 != 0)
height += 16 - height % 16;
WLog_Print(h264->log, WLOG_INFO, "MediaCodec setting width and height [%d,%d]", width, height);
AMediaFormat_setInt32(sys->inputFormat, AMEDIAFORMAT_KEY_WIDTH, width);
AMediaFormat_setInt32(sys->inputFormat, AMEDIAFORMAT_KEY_HEIGHT, 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;
}
sys->width = width;
sys->height = height;
}
while (true)
{
inputBufferId = AMediaCodec_dequeueInputBuffer(sys->decoder, -1);
if (inputBufferId < 0)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_dequeueInputBuffer failed [%d]", inputBufferId);
// TODO: sleep?
continue;
}
inputBuffer = AMediaCodec_getInputBuffer(sys->decoder, inputBufferId, &inputBufferSize);
if (inputBuffer == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getInputBuffer failed");
return -1;
}
if (SrcSize > inputBufferSize)
{
WLog_Print(h264->log, WLOG_ERROR, "MediaCodec input buffer size is too small: got [%d] but wanted [%d]", inputBufferSize, SrcSize);
return -1;
}
memcpy(inputBuffer, pSrcData, SrcSize);
status = AMediaCodec_queueInputBuffer(sys->decoder, inputBufferId, 0, SrcSize, 0, 0);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_queueInputBuffer %d", status);
return -1;
}
while (true)
{
AMediaCodecBufferInfo bufferInfo;
ssize_t outputBufferId = AMediaCodec_dequeueOutputBuffer(sys->decoder, &bufferInfo, -1);
if (outputBufferId >= 0)
{
sys->currentOutputBufferIndex = outputBufferId;
uint8_t* outputBuffer;
outputBuffer = AMediaCodec_getOutputBuffer(sys->decoder, outputBufferId, &outputBufferSize);
sys->currentOutputBufferIndex = outputBufferId;
if (outputBufferSize != (sys->width * sys->height + ((sys->width + 1) / 2) * ((sys->height + 1) / 2) * 2))
{
WLog_Print(h264->log, WLOG_ERROR, "Error unexpected output buffer size %d", outputBufferSize);
return -1;
}
// TODO: work with AImageReader and get AImage object instead of COLOR_FormatYUV420Planar buffer.
iStride[0] = sys->width;
iStride[1] = (sys->width + 1) / 2;
iStride[2] = (sys->width + 1) / 2;
pYUVData[0] = outputBuffer;
pYUVData[1] = outputBuffer + iStride[0] * sys->height;
pYUVData[2] = outputBuffer + iStride[0] * sys->height + iStride[1] * ((sys->height + 1) / 2);
break;
}
else if (outputBufferId == AMEDIACODEC_INFO_OUTPUT_FORMAT_CHANGED)
{
AMediaFormat* outputFormat;
outputFormat = AMediaCodec_getOutputFormat(sys->decoder);
if (outputFormat == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getOutputFormat failed");
return -1;
}
set_mediacodec_format(h264, &sys->outputFormat, outputFormat);
media_format = AMediaFormat_toString(sys->outputFormat);
if (media_format == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_toString failed");
return -1;
}
}
else if (outputBufferId == AMEDIACODEC_INFO_TRY_AGAIN_LATER)
{
WLog_Print(h264->log, WLOG_WARN, "AMediaCodec_dequeueOutputBuffer need to try again later");
// TODO: sleep?
}
else if (outputBufferId == AMEDIACODEC_INFO_OUTPUT_BUFFERS_CHANGED)
{
WLog_Print(h264->log, WLOG_WARN, "AMediaCodec_dequeueOutputBuffer returned deprecated value AMEDIACODEC_INFO_OUTPUT_BUFFERS_CHANGED, ignoring");
}
else
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_dequeueOutputBuffer returned unknown value [%d]", outputBufferId);
return -1;
}
}
break;
}
return 1;
}
static void mediacodec_uninit(H264_CONTEXT* h264)
{
H264_CONTEXT_MEDIACODEC* sys = (H264_CONTEXT_MEDIACODEC*)h264->pSystemData;
media_status_t status = AMEDIA_OK;
WLog_Print(h264->log, WLOG_INFO, "Uninitializing MediaCodec");
if (!sys)
return;
if (sys->decoder != NULL)
{
release_current_outputbuffer(h264);
status = AMediaCodec_stop(sys->decoder);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_stop %d", status);
}
status = AMediaCodec_delete(sys->decoder);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "Error AMediaCodec_delete %d", status);
}
sys->decoder = NULL;
}
set_mediacodec_format(h264, &sys->inputFormat, NULL);
set_mediacodec_format(h264, &sys->outputFormat, NULL);
free(sys);
h264->pSystemData = NULL;
}
static BOOL mediacodec_init(H264_CONTEXT* h264)
{
H264_CONTEXT_MEDIACODEC* sys;
media_status_t status;
char* codec_name, *media_format;
AMediaFormat* inputFormat, *outputFormat;
if (h264->Compressor)
{
WLog_Print(h264->log, WLOG_ERROR, "MediaCodec is not supported as an encoder");
goto EXCEPTION;
}
WLog_Print(h264->log, WLOG_INFO, "Initializing MediaCodec");
sys = (H264_CONTEXT_MEDIACODEC*)calloc(1, sizeof(H264_CONTEXT_MEDIACODEC));
if (!sys)
{
goto EXCEPTION;
}
h264->pSystemData = (void*)sys;
sys->currentOutputBufferIndex = -1;
sys->width = sys->height = 0; // update when we're given the height and width
sys->decoder = AMediaCodec_createDecoderByType("video/avc");
if (sys->decoder == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_createCodecByName failed");
goto EXCEPTION;
}
status = AMediaCodec_getName(sys->decoder, &codec_name);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getName failed: %d", status);
goto EXCEPTION;
}
WLog_Print(h264->log, WLOG_INFO, "MediaCodec using video/avc codec [%s]", codec_name);
AMediaCodec_releaseName(sys->decoder, codec_name);
sys->inputFormat = AMediaFormat_new();
if (sys->inputFormat == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_new failed");
goto EXCEPTION;
}
AMediaFormat_setString(sys->inputFormat, AMEDIAFORMAT_KEY_MIME, "video/avc");
AMediaFormat_setInt32(sys->inputFormat, AMEDIAFORMAT_KEY_WIDTH, sys->width);
AMediaFormat_setInt32(sys->inputFormat, AMEDIAFORMAT_KEY_HEIGHT, sys->height);
AMediaFormat_setInt32(sys->inputFormat, AMEDIAFORMAT_KEY_COLOR_FORMAT, COLOR_FormatYUV420Planar);
media_format = AMediaFormat_toString(sys->inputFormat);
if (media_format == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_toString failed");
goto EXCEPTION;
}
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);
goto EXCEPTION;
}
inputFormat = AMediaCodec_getInputFormat(sys->decoder);
if (inputFormat == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getInputFormat failed");
return -1;
}
set_mediacodec_format(h264, &sys->inputFormat, inputFormat);
media_format = AMediaFormat_toString(sys->inputFormat);
if (media_format == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_toString failed");
goto EXCEPTION;
}
WLog_Print(h264->log, WLOG_INFO, "Using MediaCodec with input MediaFormat [%s]", media_format);
outputFormat = AMediaCodec_getOutputFormat(sys->decoder);
if (outputFormat == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_getOutputFormat failed");
return -1;
}
set_mediacodec_format(h264, &sys->outputFormat, outputFormat);
media_format = AMediaFormat_toString(sys->outputFormat);
if (media_format == NULL)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaFormat_toString failed");
goto EXCEPTION;
}
WLog_Print(h264->log, WLOG_INFO, "Using MediaCodec with output MediaFormat [%s]", media_format);
WLog_Print(h264->log, WLOG_INFO, "Starting MediaCodec");
status = AMediaCodec_start(sys->decoder);
if (status != AMEDIA_OK)
{
WLog_Print(h264->log, WLOG_ERROR, "AMediaCodec_start failed %d", status);
goto EXCEPTION;
}
return TRUE;
EXCEPTION:
mediacodec_uninit(h264);
return FALSE;
}
H264_CONTEXT_SUBSYSTEM g_Subsystem_mediacodec = { "MediaCodec", mediacodec_init, mediacodec_uninit,
mediacodec_decompress, mediacodec_compress };