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bug with detection video size at 264 and 265 #166

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#220
Open
bug with detection video size at 264 and 265#166
#220
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bugSomething isn't workingtodayTasks for today

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@sansarus
sansarus
opened on Oct 14, 2026

just change 265 to 264 decoder show different size but vls and ffrobe not.
bigger resolution of stream not start (maybe because of size bug too)

ffprobe -i rtsp://192.168.1.25:554/stream1
Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 1920x1080, 25 fps, 25 tbr, 90k tbn, 25 tbc

but decoder say

"ui_thread": "ok",
"mode": "single",
"active_slot": 1,
"single": {
"url": "rtsp://192.168.1.25:554/stream1",
"transport": "TCP (auto)",
"transport_mode": "AUTO",
"video": true,
"status": "connected",
"size": "2304x1088",
"codec": "H.265",
"audio": "PCMU",
"out_fps": 24,
"decode": "full"

and

Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 1920x1080, 25 fps, 25 tbr, 90k tbn, 50 tbc

decoder say
ui_thread": "ok",
"mode": "single",
"active_slot": 1,
"single": {
"url": "rtsp://192.168.1.25:554/stream1",
"transport": "TCP (auto)",
"transport_mode": "AUTO",
"video": true,
"status": "connected",
"size": "1920x1088",
"codec": "H.264",
"audio": "PCMU",
"out_fps": 12,
"decode": "full"

Activity

  1. compot-dev
    added
    bugSomething isn't working
    on Oct 14, 2026

  2. compot-dev commented on Oct 14, 2026

    @compot-dev
    compot-dev
    on Oct 14, 2026
    Collaborator

    Thanks for the report and the ffprobe output, that made the size problem easy to find.

    Size. The app took the size from the decoder's output buffer, which is padded to the decoder's alignment, and not from the visible picture (the crop rectangle):

    • H.264 1080p showed as 1920×1088 (16-line macroblocks). This happens on every device.
    • On your device the H.265 decoder pads the width as well, so 1920×1080 became 2304×1088. The single view also fitted the picture to that size, so the picture was probably squeezed horizontally (2.12:1 instead of 16:9).

    The fix is in #167: the size now comes from the crop rectangle. I'll post here when the build is released.

    Higher resolution does not start. This is probably a separate problem. Could you tell us:

    1. Which device is it (model, Android version)? The menu next to Exit shows the app version.
    2. Which stream does not start: resolution, codec, fps (ffprobe output like above)?
    3. What the screen shows: an error text, a black picture, or the status?
    4. If possible, http://<device>:8085/stats.json and http://<device>:8085/log while it fails (check that no password is in the log).

    The output-buffer width 2304 suggests the decoder aligns to a large block size, so its resolution limit can also be lower than expected. stats.json lists the decoders and the frame rate each one supports at 1080p.

    Also, H.264 showed out_fps: 12 while the camera sends 25. Did the H.264 picture look jerky?

  3. compot-dev
    added a commit that references this issue on Oct 14, 2026

    Merge pull request #167 from OpenIPC/fix/visible-size-166

    766d697

  4. compot-dev commented on Oct 14, 2026

    @compot-dev
    compot-dev
    on Oct 14, 2026
    Collaborator

    The size fix is released in v2.04 (#167). On our test box 1080p streams now show as 1920×1080 (H.264 and H.265, before: 1920×1088), and 720p as 1280×720. On your device the H.265 stream should show as 1920×1080 instead of 2304×1088, and the single view should keep its 16:9 shape.

    Could you check it, and send the details asked above for the higher resolution that does not start?

  5. compot-dev
    added 2 commits that reference this issue on Oct 15, 2026

    fix: picture size from the decoder's crop rectangle, not the padded b…

    4fcdcb2

    Merge pull request #167 from OpenIPC/fix/visible-size-166

    56a569f

  6. sansarus commented on Oct 16, 2026

    @sansarus
    sansarus
    on Oct 16, 2026
    MemberAuthor

    1080p show correct size and fps.

    bigger - stil not work ("version": "2.13")
    Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 2304x1296, 25 fps, 25 tbr, 90k tbn, 25 tbc

    {
    "app": "OpenIPC Decoder",
    "version": "2.13",
    "git": "584c8e4",
    "time": "2026-10-16 04:15:16",
    "uptime_s": 537,
    "device": "rockchip HY300 · rk30board · board ChipTrip",
    "android": "11 (SDK 30)",
    "screen": "1024x600",
    "addresses": [
    "http://192.168.220.89:8085/"
    ],
    "server": "listening",
    "decoders": [
    {
    "name": "OMX.rk.video_decoder.avc",
    "type": "video/avc",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6,
    "fps_1080p": 60
    },
    {
    "name": "OMX.rk.video_decoder.h263",
    "type": "video/3gpp",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6
    },
    {
    "name": "OMX.rk.video_decoder.hevc",
    "type": "video/hevc",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6
    },
    {
    "name": "OMX.rk.video_decoder.m4v",
    "type": "video/mp4v-es",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6
    },
    {
    "name": "OMX.rk.video_decoder.vp8",
    "type": "video/x-vnd.on2.vp8",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6,
    "fps_1080p": 60
    },
    {
    "name": "c2.android.avc.decoder",
    "type": "video/avc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "OMX.google.h264.decoder",
    "type": "video/avc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "c2.android.h263.decoder",
    "type": "video/3gpp",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "OMX.google.h263.decoder",
    "type": "video/3gpp",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "c2.android.hevc.decoder",
    "type": "video/hevc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "OMX.google.hevc.decoder",
    "type": "video/hevc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "c2.android.mpeg4.decoder",
    "type": "video/mp4v-es",
    "hardware": false,
    "adaptive": true,
    "max_instances": 2
    },
    {
    "name": "OMX.google.mpeg4.decoder",
    "type": "video/mp4v-es",
    "hardware": false,
    "adaptive": true,
    "max_instances": 2
    },
    {
    "name": "c2.android.vp8.decoder",
    "type": "video/x-vnd.on2.vp8",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "OMX.google.vp8.decoder",
    "type": "video/x-vnd.on2.vp8",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "c2.android.vp9.decoder",
    "type": "video/x-vnd.on2.vp9",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "OMX.google.vp9.decoder",
    "type": "video/x-vnd.on2.vp9",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    }
    ],
    "ui_thread": "ok",
    "mode": "single",
    "active_slot": 1,
    "single": {
    "url": "rtsp://192.168.1.25:554/stream1",
    "transport": "TCP (auto)",
    "transport_mode": "AUTO",
    "video": false,
    "status": "connected",
    "size": "1920x1080",
    "codec": "H.265",
    "audio": "PCMU",
    "out_fps": 0,
    "decode": "full"
    },
    "slots": [
    {
    "slot": 1,
    "on_screen": true,
    "url": "rtsp://192.168.1.25:554/stream1",
    "transport": "TCP (auto)",
    "transport_mode": "AUTO",
    "video": false,
    "text": "connected"
    },
    {
    "slot": 2,
    "on_screen": false,
    "video": false,
    "text": "not configured",
    "probe": {
    "state": "not checked"
    }
    },
    {
    "slot": 3,
    "on_screen": false,
    "video": false,
    "text": "not configured",
    "probe": {
    "state": "not checked"
    }
    },
    {
    "slot": 4,
    "on_screen": false,
    "video": false,
    "text": "not configured",
    "probe": {
    "state": "not checked"
    }
    }
    ]
    }

    Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 2304x1296, 25 fps, 25 tbr, 90k tbn, 50 tbc

    {
    "app": "OpenIPC Decoder",
    "version": "2.13",
    "git": "584c8e4",
    "time": "2026-10-16 04:20:49",
    "uptime_s": 870,
    "device": "rockchip HY300 · rk30board · board ChipTrip",
    "android": "11 (SDK 30)",
    "screen": "1024x600",
    "addresses": [
    "http://192.168.220.89:8085/"
    ],
    "server": "listening",
    "decoders": [
    {
    "name": "OMX.rk.video_decoder.avc",
    "type": "video/avc",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6,
    "fps_1080p": 60
    },
    {
    "name": "OMX.rk.video_decoder.h263",
    "type": "video/3gpp",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6
    },
    {
    "name": "OMX.rk.video_decoder.hevc",
    "type": "video/hevc",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6
    },
    {
    "name": "OMX.rk.video_decoder.m4v",
    "type": "video/mp4v-es",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6
    },
    {
    "name": "OMX.rk.video_decoder.vp8",
    "type": "video/x-vnd.on2.vp8",
    "hardware": true,
    "adaptive": true,
    "max_instances": 6,
    "fps_1080p": 60
    },
    {
    "name": "c2.android.avc.decoder",
    "type": "video/avc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "OMX.google.h264.decoder",
    "type": "video/avc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "c2.android.h263.decoder",
    "type": "video/3gpp",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "OMX.google.h263.decoder",
    "type": "video/3gpp",
    "hardware": false,
    "adaptive": true,
    "max_instances": 32
    },
    {
    "name": "c2.android.hevc.decoder",
    "type": "video/hevc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "OMX.google.hevc.decoder",
    "type": "video/hevc",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "c2.android.mpeg4.decoder",
    "type": "video/mp4v-es",
    "hardware": false,
    "adaptive": true,
    "max_instances": 2
    },
    {
    "name": "OMX.google.mpeg4.decoder",
    "type": "video/mp4v-es",
    "hardware": false,
    "adaptive": true,
    "max_instances": 2
    },
    {
    "name": "c2.android.vp8.decoder",
    "type": "video/x-vnd.on2.vp8",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "OMX.google.vp8.decoder",
    "type": "video/x-vnd.on2.vp8",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "c2.android.vp9.decoder",
    "type": "video/x-vnd.on2.vp9",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    },
    {
    "name": "OMX.google.vp9.decoder",
    "type": "video/x-vnd.on2.vp9",
    "hardware": false,
    "adaptive": true,
    "max_instances": 1
    }
    ],
    "ui_thread": "ok",
    "mode": "single",
    "active_slot": 1,
    "single": {
    "url": "rtsp://192.168.1.25:554/stream1",
    "transport": "TCP (auto)",
    "transport_mode": "AUTO",
    "video": false,
    "status": "connected",
    "size": "1920x1080",
    "codec": "H.264",
    "audio": "PCMU",
    "out_fps": 0,
    "decode": "full"
    },
    "slots": [
    {
    "slot": 1,
    "on_screen": true,
    "url": "rtsp://192.168.1.25:554/stream1",
    "transport": "TCP (auto)",
    "transport_mode": "AUTO",
    "video": false,
    "text": "connected"
    },
    {
    "slot": 2,
    "on_screen": false,
    "video": false,
    "text": "not configured",
    "probe": {
    "state": "not checked"
    }
    },
    {
    "slot": 3,
    "on_screen": false,
    "video": false,
    "text": "not configured",
    "probe": {
    "state": "not checked"
    }
    },
    {
    "slot": 4,
    "on_screen": false,
    "video": false,
    "text": "not configured",
    "probe": {
    "state": "not checked"
    }
    }
    ]
    }

    stats.json see codec change but not recognize resolution (decoder show freeze image since 1080p )

    log.txt

  7. compot-dev commented on Oct 16, 2026

    @compot-dev
    compot-dev
    on Oct 16, 2026
    Collaborator

    Thanks, the log helped. When the app connects to the 2304×1296 stream, OMX.rk.video_decoder.avc starts and allocates its buffers but never outputs a frame, while 1080p from the same camera plays. So it isn't a size-detection problem but a decoder setup one: the app configures the decoder for a small picture and lets it learn the real size from the stream, and this Rockchip decoder apparently doesn't grow beyond 1080p that way.

    There's a test build that tells the decoder the largest picture it supports up front (single view only):

    APK: https://github.com/OpenIPC/decoder/releases/download/hy300-166-test1/decoder-hy300-test1.apk
    (version 2.14, 6dd18a2; it installs over 2.13 and keeps the settings)

    Could you try 2304×1296 in H.264 and H.265 with it? If it still doesn't play, please attach http://<device>:8085/log again. With this build it should have a line Decoder OMX.rk.video_decoder.…: pictures up to ….

  8. compot-dev
    added
    tomorrowPlanned for the next day
    todayTasks for today
    and removed
    tomorrowPlanned for the next day
    on Oct 16, 2026
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