On Jul 12, 2024, at 9:18 AM, ekke <e...@ekkes-corner.org> wrote:
>
> have you tried Qt Example Declarative Camera ?
> you should be able to record or view videos.
> sometimes there are problems running on emulator, so it's a good idea to
> verify
>
> Am 10.07.24 um 19:32 schrieb Israel Brewster via Interest:
>> Environment:
>>
>> Qt version: 6.6.3
>> Android version: 14, running via emulator
>> Android build-tools version: 34.0.0 (also tried 31.0.0)
>> Android build platform SDK: android-33 (also tried android-34)
>> JDK version 17 (tried 21 early on, but that one wouldn’t even build/deploy)
>> NDK version 25.1.8937393 (26.1.10909125 and 27.0.11902837 don’t create any
>> kits, so not using them)
>> Building using Qt Creator version 12.0.2 on MacOS
So after playing around with this some more, I find the following:
- Behavior on a physical device is the same as on the emulator (so it doesn’t
appear to be an emulator issue)
- Of the half dozen rtsp streams I have access to, *one* works. It’s a newer
camera, streaming in h.265, while the one I really want streams in h.264 (so it
doesn’t appear to be a fundamental code issue)
- A couple of other cameras work for audio, but not video. Even other cameras
with h.265 streams.
- No difference in functionality between using the ffmpeg backend, and the
“android” backend.
- Things work fine when compiled/running on my Mac instead of android.
- I CAN view the stream using ffmpeg installed in termux, as long as I give it
the "rtsp_transport tcp" option.
Here is the full code I am using for testing:
#include <QApplication>
#include <QMainWindow>
#include <QMediaPlayer>
#include <QVideoWidget>
#include <QHBoxLayout>
#include <QAudioOutput>
int main(int argc, char *argv[])
{
qputenv("QT_MEDIA_BACKEND","ffmpeg");
QApplication a(argc, argv);
QMainWindow w;
QWidget *centralWidget=w.centralWidget();
if(!centralWidget){
centralWidget=new QWidget(&w);
w.setCentralWidget(centralWidget);
}
QHBoxLayout layout;
centralWidget->setLayout(&layout);
QMediaPlayer player;
QObject::connect(&player, &QMediaPlayer::errorOccurred,
[](QMediaPlayer::Error error, const QString &errorString) {
qWarning() << "MediaPlayer error:" << error << errorString;
});
QVideoWidget videoWidget;
layout.addWidget(&videoWidget);
player.setVideoOutput(&videoWidget);
QAudioOutput audioOutput;
player.setAudioOutput(&audioOutput);
videoWidget.show();
w.show();
player.setSource(QUrl("rtsp://10.27.81.62:554/11"));
player.play();
return a.exec();
}
And the output I get when running that code, after I specify the source:
W qt.multimedia.ffmpeg.libsymbolsresolver: : Couldn't load OpenSsl library
I ImeTracker: org.qtproject.example.TestAndroidVideo:f900fc2d: onRequestHide at
ORIGIN_CLIENT_HIDE_SOFT_INPUT reason HIDE_SOFT_INPUT
I ImeTracker: org.qtproject.example.TestAndroidVideo:f900fc2d: onFailed at
PHASE_CLIENT_VIEW_SERVED
W qt.multimedia.ffmpeg.mediadataholder: : AVStream duration
-9223372036854775808 is invalid. Taking it from the metadata
W qt.multimedia.ffmpeg.mediadataholder: : AVStream duration
-9223372036854775808 is invalid. Taking it from the metadata
E EGL_emulation: eglQueryContext 32c0 EGL_BAD_ATTRIBUTE
E EGL_emulation: tid 16364: eglQueryContext(2146): error 0x3004
(EGL_BAD_ATTRIBUTE)
D CCodec : allocate(c2.goldfish.h264.decoder)
I Codec2Client: Available Codec2 services: "default" "software"
I CCodec : setting up 'default' as default (vendor) store
I CCodec : Created component [c2.goldfish.h264.decoder]
D CCodecConfig: read media type: video/avc
D ReflectedParamUpdater: extent() != 1 for single value type:
algo.buffers.max-count.values
D ReflectedParamUpdater: extent() != 1 for single value type:
output.subscribed-indices.values
D ReflectedParamUpdater: extent() != 1 for single value type:
input.buffers.allocator-ids.values
D ReflectedParamUpdater: extent() != 1 for single value type:
output.buffers.allocator-ids.values
D ReflectedParamUpdater: extent() != 1 for single value type:
algo.buffers.allocator-ids.values
D ReflectedParamUpdater: extent() != 1 for single value type:
output.buffers.pool-ids.values
D ReflectedParamUpdater: extent() != 1 for single value type:
algo.buffers.pool-ids.values
D ReflectedParamUpdater: ignored struct field coded.color-format.locations
D CCodecConfig: ignoring local param raw.size (0xd2001800) as it is already
supported
D CCodecConfig: ignoring local param default.color (0x5200180b) as it is
already supported
D ReflectedParamUpdater: ignored struct field raw.hdr-static-info.mastering
I CCodecConfig: query failed after returning 12 values (BAD_INDEX)
D CCodecConfig: c2 config diff is Dict {
D CCodecConfig: c2::u32 coded.pl.level = 20496
D CCodecConfig: c2::u32 coded.pl.profile = 20481
D CCodecConfig: c2::u32 coded.vui.color.matrix = 0
D CCodecConfig: c2::u32 coded.vui.color.primaries = 0
D CCodecConfig: c2::u32 coded.vui.color.range = 2
D CCodecConfig: c2::u32 coded.vui.color.transfer = 0
D CCodecConfig: c2::u32 default.color.matrix = 0
D CCodecConfig: c2::u32 default.color.primaries = 0
D CCodecConfig: c2::u32 default.color.range = 0
D CCodecConfig: c2::u32 default.color.transfer = 0
D CCodecConfig: c2::u32 input.buffers.max-size.value = 6291456
D CCodecConfig: c2::u32 input.delay.value = 0
D CCodecConfig: string input.media-type.value = "video/avc"
D CCodecConfig: c2::u32 output.delay.value = 8
D CCodecConfig: string output.media-type.value = "video/raw"
D CCodecConfig: c2::u32 raw.color.matrix = 0
D CCodecConfig: c2::u32 raw.color.primaries = 0
D CCodecConfig: c2::u32 raw.color.range = 2
D CCodecConfig: c2::u32 raw.color.transfer = 0
D CCodecConfig: c2::u32 raw.max-size.height = 240
D CCodecConfig: c2::u32 raw.max-size.width = 320
D CCodecConfig: c2::u32 raw.pixel-format.value = 35
D CCodecConfig: c2::i32 raw.rotation.flip = 0
D CCodecConfig: c2::i32 raw.rotation.value = 0
D CCodecConfig: c2::u32 raw.sar.height = 1
D CCodecConfig: c2::u32 raw.sar.width = 1
D CCodecConfig: c2::u32 raw.size.height = 240
D CCodecConfig: c2::u32 raw.size.width = 320
D CCodecConfig: c2:
W ColorUtils: expected specified color aspects (2:0:0:0)
D MediaCodec: flushMediametrics
D SurfaceUtils: connecting to surface 0x7711d4fabf10, reason connectToSurface
I MediaCodec: [c2.goldfish.h264.decoder] setting surface generation to 16730113
D SurfaceUtils: disconnecting from surface 0x7711d4fabf10, reason
connectToSurface(reconnect)
D SurfaceUtils: connecting to surface 0x7711d4fabf10, reason
connectToSurface(reconnect)
D CCodec : [c2.goldfish.h264.decoder] buffers are bound to CCodec for this
session
D CCodecConfig: no c2 equivalents for csd-1
D CCodecConfig: no c2 equivalents for native-window
D CCodecConfig: no c2 equivalents for flags
D CCodecConfig: config failed => CORRUPTED
D CCodecConfig: c2 config diff is c2::u32 raw.size.height = 1080
D CCodecConfig: c2::u32 raw.size.width = 1920
W Codec2Client: query -- param skipped: index = 1107298332.
D CCodec : encoding statistics level = 0
D CCodec : setup formats input: AMessage(what = 0x00000000) = {
D CCodec : int32_t height = 1080
D CCodec : int32_t level = 65536
D CCodec : int32_t max-input-size = 6291456
D CCodec : string mime = "video/avc"
D CCodec : int32_t profile = 65536
D CCodec : int32_t width = 1920
D CCodec : Rect crop(0, 0, 1919, 1079)
D CCodec : }
D CCodec : setup formats output: AMessage(what = 0x00000000) = {
D CCodec : int32_t android._color-format = 2135033992
D CCodec : int32_t android._video-scaling = 1
D CCodec : int32_t rotation-degrees = 0
D CCodec : int32_t color-standard = 1
D CCodec : int32_t color-range = 2
D CCodec : int32_t color-transfer = 3
D CCodec : int32_t sar-height = 1
D CCodec : int32_t sar-width = 1
D CCodec : Rect crop(0, 0, 1919, 1079)
D CCodec : int32_t width = 1920
D CCodec : int32_t height = 1080
D CCodec : int32_t max-height = 240
D CCodec : int32_t max-width = 320
D CCodec : string mime = "video/raw"
D CCodec : int32_t android._dataspace = 260
D CCodec : int32_t color-format = 2130708361
D CCodec : }
I CCodecConfig: query failed after returning 12 values (BAD_INDEX)
D CCodecConfig: c2 config diff is c2::u32 raw.max-size.height = 1080
D CCodecConfig: c2::u32 raw.max-size.width = 1920
W Codec2Client: query -- param skipped: index = 1342179345.
W Codec2Client: query -- param skipped: index = 2415921170.
W Codec2Client: query -- param skipped: index = 1610614798.
W Codec2Client: query -- param skipped: index = 2684356609.
D C2Store : Using DMABUF Heaps
D CCodecBufferChannel: [c2.goldfish.h264.decoder#552] Created input block pool
with allocatorID 16 => poolID 17 - OK (0)
D CCodecBufferChannel: [c2.goldfish.h264.decoder#552] Query output surface
allocator returned 0 params => BAD_INDEX (6)
I CCodecBufferChannel: [c2.goldfish.h264.decoder#552] Created output block pool
with allocatorID 18 => poolID 41 - OK
D CCodecBufferChannel: [c2.goldfish.h264.decoder#552] Configured output block
pool ids 41 => OK
D Codec2-OutputBufferQueue: remote graphic buffer migration 0/0
D Codec2Client: setOutputSurface -- failed to set consumer usage (6/BAD_INDEX)
D Codec2Client: setOutputSurface -- generation=16730113 consumer usage=0x900
D Codec2Client: Surface configure completed
I DMABUFHEAPS: Using DMA-BUF heap named: system
D CCodecBufferChannel: [c2.goldfish.h264.decoder#552] Ignoring stale input
buffer done callback: last flush index = 0, frameIndex = 0
D CCodecBufferChannel: [c2.goldfish.h264.decoder#552] MediaCodec discarded an
unknown buffer
D CCodecBufferChannel: [c2.goldfish.h264.decoder#552] MediaCodec discarded an
unknown buffer
I CCodecConfig: query failed after returning 12 values (BAD_INDEX)
W Codec2Client: query -- param skipped: index = 1342179345.
W Codec2Client: query -- param skipped: index = 2415921170.
W Codec2Client: query -- param skipped: index = 1610614798.
D BufferPoolAccessor2.0: bufferpool2 0x771134fb5ce8 : 5(31457280 size) total
buffers - 4(25165824 size) used buffers - 5/10 (recycle/alloc) - 2/2
(fetch/transfer)
D BufferPoolAccessor2.0: evictor expired: 1, evicted: 1
---
Israel Brewster
Software Engineer
Alaska Volcano Observatory
Geophysical Institute - UAF
2156 Koyukuk Drive
Fairbanks AK 99775-7320
Work: 907-474-5172
cell: 907-328-9145
>>
>> Question/problem:
>>
>> So now that I have photos displaying on Android, I wanted to be able to
>> display a RTSP stream. To that end, I have the following code:
>>
>> void MainWindow::testMediaPlayer(){
>> if(videoFrame!=nullptr){
>> videoFrame->deleteLater();
>> }
>> videoFrame=new QVideoWidget;
>> ui->videoLayout->addWidget(videoFrame);
>>
>> if(videoPlayer!=nullptr){
>> videoPlayer->deleteLater();
>> }
>> if(audioOutput!=nullptr){
>> audioOutput->deleteLater();
>> }
>>
>> videoPlayer=new QMediaPlayer;
>> connect(this, &MainWindow::stopRTSP,
>> videoPlayer,&QMediaPlayer::stop,
>> Qt::QueuedConnection);
>> audioOutput=new QAudioOutput;
>> videoPlayer->setAudioOutput(audioOutput);
>> videoPlayer->setVideoOutput(videoFrame);
>> videoPlayer->setSource(QUrl("rtsp://xx.xx.xx.xx:554/11"
>> <rtsp://xx.xx.xx.xx:554/11>));
>> ui->viewStack->setCurrentIndex(1); //using a stacked widget to display
>> video separately from still images.
>> videoPlayer->play();
>> }
>>
>> This code works fine when compiled/run on my mac, but when run on Android I
>> just get a black screen. The QMediaPlayer documentation seems to indicate
>> that FFMPEG is used on both Mac and Android platforms, so it seems as though
>> if it works on one, it should work on the other (unless the Android version
>> of FFMPEG is more limited?)
>>
>> I tried giving my app the android.permission.INTERNET, which returns that it
>> is granted when I request it, but that doesn’t appear to have helped.
>>
>> Also, VLC on the emulator does play the video correctly, so apparently it’s
>> not an access issue with the tablet not being able to access the stream.
>> ---
>> Israel Brewster
>> Software Engineer
>> Alaska Volcano Observatory
>> Geophysical Institute - UAF
>> 2156 Koyukuk Drive
>> Fairbanks AK 99775-7320
>> Work: 907-474-5172
>> cell: 907-328-9145
>>
>>
>>
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org <mailto:Interest@qt-project.org>
>> https://lists.qt-project.org/listinfo/interest
>
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