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working hwdecode

This commit is contained in:
Isaac Connor 2019-06-24 17:22:59 -04:00
parent 529f0b55ef
commit 246b4cb9d1
5 changed files with 175 additions and 36 deletions
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11
src/zm_ffmpeg.cpp
View File

@ -284,6 +284,17 @@ static void zm_log_fps(double d, const char *postfix) {
}
}
void zm_dump_video_frame(const AVFrame *frame, const char *text) {
Debug(1, "%s: format %d %s %dx%d linesize:%d pts: %" PRId64,
text,
frame->format,
av_get_pix_fmt_name((AVPixelFormat)frame->format),
frame->width,
frame->height,
frame->linesize,
frame->pts
);
}
void zm_dump_frame(const AVFrame *frame,const char *text) {
Debug(1, "%s: format %d %s sample_rate %" PRIu32 " nb_samples %d channels %d"
" duration %" PRId64

1
src/zm_ffmpeg.h
View File

@ -300,6 +300,7 @@ void zm_dump_codec(const AVCodecContext *codec);
void zm_dump_codecpar(const AVCodecParameters *par);
#endif
void zm_dump_frame(const AVFrame *frame, const char *text="Frame");
void zm_dump_video_frame(const AVFrame *frame, const char *text="Frame");
#if LIBAVCODEC_VERSION_CHECK(56, 8, 0, 60, 100)
#define zm_av_packet_unref( packet ) av_packet_unref( packet )

151
src/zm_ffmpeg_camera.cpp
View File

@ -42,6 +42,22 @@ extern "C" {
#endif
static enum AVPixelFormat hw_pix_fmt;
static enum AVPixelFormat get_hw_format(
AVCodecContext *ctx,
const enum AVPixelFormat *pix_fmts
) {
const enum AVPixelFormat *p;
for ( p = pix_fmts; *p != -1; p++ ) {
if ( *p == hw_pix_fmt )
return *p;
}
Error("Failed to get HW surface format.");
return AV_PIX_FMT_NONE;
}
#if HAVE_AVUTIL_HWCONTEXT_H
static AVPixelFormat get_format(AVCodecContext *avctx, const enum AVPixelFormat *pix_fmts) {
while (*pix_fmts != AV_PIX_FMT_NONE) {
@ -122,8 +138,8 @@ FfmpegCamera::FfmpegCamera(
hwaccel = false;
#if HAVE_AVUTIL_HWCONTEXT_H
decode = { NULL };
hwFrame = NULL;
#endif
hwFrame = NULL;
mFormatContext = NULL;
mVideoStreamId = -1;
@ -250,6 +266,7 @@ int FfmpegCamera::Capture( Image &image ) {
zm_av_packet_unref( &packet );
continue;
}
Debug(1, "transfering from hardware");
ret = av_hwframe_transfer_data(mRawFrame, hwFrame, 0);
if (ret < 0) {
av_strerror( ret, errbuf, AV_ERROR_MAX_STRING_SIZE );
@ -259,6 +276,8 @@ int FfmpegCamera::Capture( Image &image ) {
}
} else {
#endif
ret = avcodec_receive_frame( mVideoCodecContext, mRawFrame );
if ( ret < 0 ) {
av_strerror( ret, errbuf, AV_ERROR_MAX_STRING_SIZE );
@ -305,7 +324,7 @@ int FfmpegCamera::Capture( Image &image ) {
#endif
#if HAVE_LIBSWSCALE
if ( sws_scale(mConvertContext, mRawFrame->data, mRawFrame->linesize, 0, mVideoCodecContext->height, mFrame->data, mFrame->linesize) < 0 ) {
if ( sws_scale(mConvertContext, mRawFrame->data, mRawFrame->linesize, 0, mVideoCodecContext->height, mFrame->data, mFrame->linesize) <= 0 ) {
Error("Unable to convert raw format %u to target format %u at frame %d", mVideoCodecContext->pix_fmt, imagePixFormat, frameCount);
return -1;
}
@ -331,7 +350,6 @@ int FfmpegCamera::PostCapture() {
int FfmpegCamera::OpenFfmpeg() {
int ret;
have_video_keyframe = false;
@ -339,7 +357,6 @@ int FfmpegCamera::OpenFfmpeg() {
// Open the input, not necessarily a file
#if !LIBAVFORMAT_VERSION_CHECK(53, 2, 0, 4, 0)
Debug ( 1, "Calling av_open_input_file" );
if ( av_open_input_file( &mFormatContext, mPath.c_str(), NULL, 0, NULL ) != 0 )
#else
// Handle options
@ -518,6 +535,23 @@ int FfmpegCamera::OpenFfmpeg() {
}
} // end if h264
#endif
AVHWAccel *first_hwaccel = av_hwaccel_next(NULL);
AVHWAccel *temp_hwaccel = first_hwaccel;
AVHWAccel *h264 = NULL;
const char * h264_name = "h264_vaapi";
while ( temp_hwaccel != NULL ) {
Debug(1,"%s ", temp_hwaccel->name);
if ( strcmp(temp_hwaccel->name, h264_name) == 0 ) {
h264=temp_hwaccel;
}
temp_hwaccel = av_hwaccel_next(temp_hwaccel);
if ( temp_hwaccel == first_hwaccel ) {
break;
}
}
if ( mVideoCodecContext->codec_id == AV_CODEC_ID_H264 ) {
if ( (mVideoCodec = avcodec_find_decoder_by_name("h264_mmal")) == NULL ) {
Debug(1, "Failed to find decoder (h264_mmal)" );
@ -530,16 +564,58 @@ int FfmpegCamera::OpenFfmpeg() {
// Try and get the codec from the codec context
Error("Can't find codec for video stream from %s", mPath.c_str());
return -1;
} else {
}
Debug(1, "Video Found decoder %s", mVideoCodec->name);
zm_dump_stream_format(mFormatContext, mVideoStreamId, 0, 0);
enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
while ( (type = av_hwdevice_iterate_types(type)) != AV_HWDEVICE_TYPE_NONE )
Debug(1, "%s", av_hwdevice_get_type_name(type));
const char *hw_name = "vaapi";
type = av_hwdevice_find_type_by_name(hw_name);
if ( type == AV_HWDEVICE_TYPE_NONE ) {
Debug(1,"Device type %s is not supported.", hw_name);
} else {
Debug(1, "Found hwdevice %s", av_hwdevice_get_type_name(type));
}
// Get h_pix_fmt
for ( int i = 0;; i++ ) {
const AVCodecHWConfig *config = avcodec_get_hw_config(mVideoCodec, i);
if ( !config ) {
Debug(1, "Decoder %s does not support device type %s.",
mVideoCodec->name, av_hwdevice_get_type_name(type));
return -1;
}
if ( (config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX )
&& (config->device_type == type)
) {
hw_pix_fmt = config->pix_fmt;
break;
}
} // end foreach hwconfig
mVideoCodecContext->get_format = get_hw_format;
Debug(1, "Creating hwdevice");
if ((ret = av_hwdevice_ctx_create(&hw_device_ctx, type, NULL, NULL, 0)) < 0) {
Error("Failed to create specified HW device.");
return -1;
}
Debug(1, "Created hwdevice");
mVideoCodecContext->hw_device_ctx = av_buffer_ref(hw_device_ctx);
hwaccel = true;
hwFrame = zm_av_frame_alloc();
// Open the codec
#if !LIBAVFORMAT_VERSION_CHECK(53, 8, 0, 8, 0)
ret = avcodec_open(mVideoCodecContext, mVideoCodec);
#else
ret = avcodec_open2(mVideoCodecContext, mVideoCodec, &opts);
#endif
AVDictionaryEntry *e = NULL;
e = NULL;
while ( (e = av_dict_get(opts, "", e, AV_DICT_IGNORE_SUFFIX)) != NULL ) {
Warning( "Option %s not recognized by ffmpeg", e->key);
}
@ -549,13 +625,14 @@ int FfmpegCamera::OpenFfmpeg() {
return -1;
}
zm_dump_codec(mVideoCodecContext);
}
if ( mVideoCodecContext->hwaccel != NULL ) {
Debug(1, "HWACCEL in use");
} else {
Debug(1, "HWACCEL not in use");
}
if ( mAudioStreamId >= 0 ) {
if ( (mAudioCodec = avcodec_find_decoder(
#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
@ -629,6 +706,7 @@ int FfmpegCamera::OpenFfmpeg() {
return -1;
}
# if 0
mConvertContext = sws_getContext(
mVideoCodecContext->width,
mVideoCodecContext->height,
@ -640,6 +718,7 @@ int FfmpegCamera::OpenFfmpeg() {
Error( "Unable to create conversion context for %s", mPath.c_str() );
return -1;
}
#endif
#else // HAVE_LIBSWSCALE
Fatal( "You must compile ffmpeg with the --enable-swscale option to use ffmpeg cameras" );
#endif // HAVE_LIBSWSCALE
@ -885,7 +964,8 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
if ( packetqueue->packet_count(mVideoStreamId) >= monitor->GetImageBufferCount() ) {
Warning("ImageBufferCount %d is too small. Needs to be at least %d. Either increase it or decrease time between keyframes",
monitor->GetImageBufferCount(),
packetqueue->packet_count(mVideoStreamId)+1 );
packetqueue->packet_count(mVideoStreamId)+1
);
}
packetqueue->clearQueue(monitor->GetPreEventCount(), mVideoStreamId);
@ -931,6 +1011,7 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
}
#if HAVE_AVUTIL_HWCONTEXT_H
if ( hwaccel ) {
Debug(1, "Using hwaccel to decode");
ret = avcodec_receive_frame(mVideoCodecContext, hwFrame);
if ( ret < 0 ) {
av_strerror(ret, errbuf, AV_ERROR_MAX_STRING_SIZE);
@ -947,6 +1028,8 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
}
} else {
#endif
Debug(1, "Decodingaccel to decode");
ret = avcodec_receive_frame(mVideoCodecContext, mRawFrame);
if ( ret < 0 ) {
av_strerror(ret, errbuf, AV_ERROR_MAX_STRING_SIZE);
@ -961,6 +1044,24 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
continue;
}
if ( error_count > 0 ) error_count --;
zm_dump_video_frame(mRawFrame);
if ( mRawFrame->format == hw_pix_fmt ) {
/* retrieve data from GPU to CPU */
ret = av_hwframe_transfer_data(hwFrame, mRawFrame, 0);
if ( ret < 0 ) {
av_strerror(ret, errbuf, AV_ERROR_MAX_STRING_SIZE);
Error("Unable to transfer frame at frame %d: %s, continuing", frameCount, errbuf);
zm_av_packet_unref(&packet);
continue;
}
Debug(1,"Success transfering");
zm_dump_video_frame(hwFrame);
hwFrame->pts = mRawFrame->pts;
input_frame = hwFrame;
} else {
input_frame = mRawFrame;
}
#if HAVE_AVUTIL_HWCONTEXT_H
}
@ -968,7 +1069,7 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
frameComplete = 1;
# else
ret = zm_avcodec_decode_video(mVideoCodecContext, mRawFrame, &frameComplete, &packet);
ret = zm_avcodec_decode_video(mVideoCodecContext, input_frame, &frameComplete, &packet);
if ( ret < 0 ) {
av_strerror(ret, errbuf, AV_ERROR_MAX_STRING_SIZE);
Error("Unable to decode frame at frame %d: %s, continuing", frameCount, errbuf);
@ -994,10 +1095,34 @@ int FfmpegCamera::CaptureAndRecord( Image &image, timeval recording, char* event
#else
avpicture_fill( (AVPicture *)mFrame, directbuffer, imagePixFormat, width, height);
#endif
if (sws_scale(mConvertContext, mRawFrame->data, mRawFrame->linesize,
0, mVideoCodecContext->height, mFrame->data, mFrame->linesize) < 0) {
Error("Unable to convert raw format %u to target format %u at frame %d",
mVideoCodecContext->pix_fmt, imagePixFormat, frameCount);
Debug(1,"swscale target format: %c%c%c%c %c%c%c%c",
(imagePixFormat)&0xff,((imagePixFormat>>8)&0xff),((imagePixFormat>>16)&0xff),((imagePixFormat>>24)&0xff),
(mVideoCodecContext->pix_fmt)&0xff,
((mVideoCodecContext->pix_fmt>>8)&0xff),
((mVideoCodecContext->pix_fmt>>16)&0xff),
((mVideoCodecContext->pix_fmt>>24)&0xff)
);
if ( ! mConvertContext ) {
mConvertContext = sws_getContext(
input_frame->width,
input_frame->height,
(AVPixelFormat)input_frame->format,
width, height,
imagePixFormat, SWS_BICUBIC, NULL,
NULL, NULL);
if ( mConvertContext == NULL ) {
Error( "Unable to create conversion context for %s", mPath.c_str() );
return -1;
}
}
if ( sws_scale(mConvertContext, input_frame->data, input_frame->linesize,
0, mVideoCodecContext->height, mFrame->data, mFrame->linesize) <= 0 ) {
Error("Unable to convert raw format %u to target format %u at frame %d codec %u ",
input_frame->format,
imagePixFormat, frameCount,
mVideoCodecContext->pix_fmt
);
return -1;
}

4
src/zm_ffmpeg_camera.h
View File

@ -55,12 +55,14 @@ class FfmpegCamera : public Camera {
AVFrame *mRawFrame;
AVFrame *mFrame;
_AVPIXELFORMAT imagePixFormat;
AVFrame *input_frame; // Use to point to mRawFrame or hwFrame;
bool hwaccel;
#if HAVE_AVUTIL_HWCONTEXT_H
AVFrame *hwFrame;
#if HAVE_AVUTIL_HWCONTEXT_H
DecodeContext decode;
#endif
AVBufferRef *hw_device_ctx = NULL;
// Need to keep track of these because apparently the stream can start with values for pts/dts and then subsequent packets start at zero.
int64_t audio_last_pts;

2
zoneminder-config.cmake
View File

@ -51,7 +51,7 @@
#cmakedefine HAVE_LIBAVUTIL 1
#cmakedefine HAVE_LIBAVUTIL_AVUTIL_H 1
#cmakedefine HAVE_LIBAVUTIL_MATHEMATICS_H 1
#cmakedefine HAVE_LIBAVUTIL_HWCONTEXT_H 0
#cmakedefine HAVE_LIBAVUTIL_HWCONTEXT_H 1
#cmakedefine HAVE_LIBSWSCALE 1
#cmakedefine HAVE_LIBSWSCALE_SWSCALE_H 1
#cmakedefine HAVE_LIBSWRESAMPLE 1