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fix_use_delegated_generic_capturer_when_available.patch

fix_use_delegated_generic_capturer_when_available.patch 2.9 KB
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  1. From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
    2. 

  2. From: Athul Iddya <[email protected]>
    3. 

  3. Date: Fri, 14 Jul 2023 08:03:37 -0700
    4. 

  4. Subject: fix: use delegated generic capturer when available
    5. 

  5. 

  6. When the generic capturer is used to fetch capture sources, the returned
    7. 

  7. ID will be arbitrarily prefixed with "screen" or "window" regardless of
    8. 

  8. the source type. If the window capturer is used to stream video when the
    9. 

  9. source was a screen or vice-versa, the stream fails to restart in
    10. 

  10. delegated capturers like PipeWire.
    11. 

  11. 

  12. To fix this, use the generic capturer to fetch the media stream if it's
    13. 

  13. delegated and available. This does not cause any issues if the original
    14. 

  14. capturer was window or screen-specific, as the IDs remain valid for
    15. 

  15. generic capturer as well.
    16. 

  16. 

  17. diff --git a/content/browser/media/capture/desktop_capture_device.cc b/content/browser/media/capture/desktop_capture_device.cc
    18. 

  18. index 162de4cdcb00386943272c15aa2e809511d851ad..6e28dcfbc6164caa92938980f92a718e45c976c1 100644
    19. 

  19. --- a/content/browser/media/capture/desktop_capture_device.cc
    20. 

  20. +++ b/content/browser/media/capture/desktop_capture_device.cc
    21. 

  21. @@ -822,8 +822,14 @@ std::unique_ptr<media::VideoCaptureDevice> DesktopCaptureDevice::Create(
    22. 

  22.                DesktopCapturerLacros::CaptureType::kScreen,
    23. 

  23.                webrtc::DesktopCaptureOptions());
    24. 

  24.  #else
    25. 

  25. -      std::unique_ptr<webrtc::DesktopCapturer> screen_capturer(
    26. 

  26. -          webrtc::DesktopCapturer::CreateScreenCapturer(options));
    27. 

  27. +      std::unique_ptr<webrtc::DesktopCapturer> screen_capturer;
    28. 

  28. +      if (auto generic_capturer =
    29. 

  29. +              webrtc::DesktopCapturer::CreateGenericCapturer(options);
    30. 

  30. +          generic_capturer && generic_capturer->GetDelegatedSourceListController()) {
    31. 

  31. +        screen_capturer = std::move(generic_capturer);
    32. 

  32. +      } else {
    33. 

  33. +        screen_capturer = webrtc::DesktopCapturer::CreateScreenCapturer(options);
    34. 

  34. +      }
    35. 

  35.  #endif
    36. 

  36.        if (screen_capturer && screen_capturer->SelectSource(source.id)) {
    37. 

  37.          capturer = std::make_unique<webrtc::DesktopAndCursorComposer>(
    38. 

  38. @@ -842,8 +848,14 @@ std::unique_ptr<media::VideoCaptureDevice> DesktopCaptureDevice::Create(
    39. 

  39.            new DesktopCapturerLacros(DesktopCapturerLacros::CaptureType::kWindow,
    40. 

  40.                                      webrtc::DesktopCaptureOptions()));
    41. 

  41.  #else
    42. 

  42. -      std::unique_ptr<webrtc::DesktopCapturer> window_capturer =
    43. 

  43. -          webrtc::DesktopCapturer::CreateWindowCapturer(options);
    44. 

  44. +      std::unique_ptr<webrtc::DesktopCapturer> window_capturer;
    45. 

  45. +      if (auto generic_capturer =
    46. 

  46. +              webrtc::DesktopCapturer::CreateGenericCapturer(options);
    47. 

  47. +          generic_capturer && generic_capturer->GetDelegatedSourceListController()) {
    48. 

  48. +        window_capturer = std::move(generic_capturer);
    49. 

  49. +      } else {
    50. 

  50. +        window_capturer = webrtc::DesktopCapturer::CreateWindowCapturer(options);
    51. 

  51. +      }
    52. 

  52.  #endif
    53. 

  53.        if (window_capturer && window_capturer->SelectSource(source.id)) {
    54. 

  54.          capturer = std::make_unique<webrtc::DesktopAndCursorComposer>(
    55.