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add support for FFMPEG 5.x #158

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add support for FFMPEG 5.x #158

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32 changes: 14 additions & 18 deletions samples/sample_c++/module_sample/liveview/dji_camera_stream_decoder.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,6 @@ DJICameraStreamDecoder::DJICameraStreamDecoder()
pSwsCtx(nullptr),
pFrameYUV(nullptr),
pFrameRGB(nullptr),
rgbBuf(nullptr),
#endif
bufSize(0)
{
Expand Down Expand Up @@ -78,14 +77,15 @@ bool DJICameraStreamDecoder::init()
}

#ifdef FFMPEG_INSTALLED
avcodec_register_all();
// avcodec_register_all();
pCodecCtx = avcodec_alloc_context3(nullptr);
if (!pCodecCtx) {
return false;
}

pCodecCtx->thread_count = 4;
pCodec = avcodec_find_decoder(AV_CODEC_ID_H264);
// pCodec = avcodec_find_decoder(AV_CODEC_ID_H264);
pCodec = const_cast<AVCodec *>(avcodec_find_decoder(AV_CODEC_ID_H264));
if (!pCodec || avcodec_open2(pCodecCtx, pCodec, nullptr) < 0) {
return false;
}
Expand Down Expand Up @@ -147,11 +147,6 @@ void DJICameraStreamDecoder::cleanup()
pCodecCtx = nullptr;
}

if (nullptr != rgbBuf) {
av_free(rgbBuf);
rgbBuf = nullptr;
}

if (nullptr != pFrameRGB) {
av_free(pFrameRGB);
pFrameRGB = nullptr;
Expand Down Expand Up @@ -206,11 +201,10 @@ void DJICameraStreamDecoder::decodeBuffer(const uint8_t *buf, int bufLen)
pData += processedLen;

if (pkt.size > 0) {
int gotPicture = 0;
avcodec_decode_video2(pCodecCtx, pFrameYUV, &gotPicture, &pkt);
int ret = avcodec_send_packet(pCodecCtx, &pkt);
ret = avcodec_receive_frame(pCodecCtx, pFrameYUV);

if (!gotPicture) {
////DSTATUS_PRIVATE("Got Frame, but no picture\n");
if(0 != ret) {
continue;
} else {
int w = pFrameYUV->width;
Expand All @@ -223,13 +217,15 @@ void DJICameraStreamDecoder::decodeBuffer(const uint8_t *buf, int bufLen)
4, nullptr, nullptr, nullptr);
}

if (nullptr == rgbBuf) {
bufSize = avpicture_get_size(AV_PIX_FMT_RGB24, w, h);
rgbBuf = (uint8_t *) av_malloc(bufSize);
avpicture_fill((AVPicture *) pFrameRGB, rgbBuf, AV_PIX_FMT_RGB24, w, h);
if( 0 == bufSize) {
bufSize = w * h * 3;
pFrameRGB->width = w;
pFrameRGB->height = h;
pFrameRGB->format = AV_PIX_FMT_RGB24;
av_frame_get_buffer(pFrameRGB, 1);
}

if (nullptr != pSwsCtx && nullptr != rgbBuf) {
if (nullptr != pSwsCtx && 0 != bufSize) {
sws_scale(pSwsCtx,
(uint8_t const *const *) pFrameYUV->data, pFrameYUV->linesize, 0, pFrameYUV->height,
pFrameRGB->data, pFrameRGB->linesize);
Expand All @@ -243,7 +239,7 @@ void DJICameraStreamDecoder::decodeBuffer(const uint8_t *buf, int bufLen)
}
}
pthread_mutex_unlock(&decodemutex);
av_free_packet(&pkt);
av_packet_unref(&pkt);
#endif
}

Expand Down
10 changes: 0 additions & 10 deletions samples/sample_c++/module_sample/liveview/dji_camera_stream_decoder.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,6 @@ class DJICameraStreamDecoder {
AVFrame *pFrameYUV;
AVFrame *pFrameRGB;
#endif
uint8_t *rgbBuf;
size_t bufSize;
};

Expand All @@ -90,12 +89,3 @@ class DJICameraStreamDecoder {

#endif // DJI_CAMERA_STREAM_DECCODER_H
/************************ (C) COPYRIGHT DJI Innovations *******END OF FILE******/









14 changes: 0 additions & 14 deletions samples/sample_c++/platform/linux/manifold2/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -81,20 +81,6 @@ if (FFMPEG_FOUND)
message(STATUS " - Includes: ${FFMPEG_INCLUDE_DIR}")
message(STATUS " - Libraries: ${FFMPEG_LIBRARIES}")

EXECUTE_PROCESS(COMMAND ffmpeg -version
OUTPUT_VARIABLE ffmpeg_version_output
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX MATCH "version.*Copyright" ffmpeg_version_line ${ffmpeg_version_output})
string(REGEX MATCH " .* " ffmpeg_version ${ffmpeg_version_line})
string(REGEX MATCH "^ 5.*$" ffmpeg_major_version ${ffmpeg_version})

if (HEAD${ffmpeg_major_version} STREQUAL "HEAD")
message(STATUS " - Version: ${ffmpeg_version}")
else ()
message(FATAL_ERROR " - Not support FFMPEG version: ${ffmpeg_major_version}, please install 4.x.x instead.")
endif ()

target_link_libraries(${PROJECT_NAME} ${FFMPEG_LIBRARIES})
include_directories(${FFMPEG_INCLUDE_DIR})
add_definitions(-DFFMPEG_INSTALLED)
Expand Down