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  • fftools/ffmpeg_filter : try to configure filtergraphs earlier

    21 mai 2023, par Anton Khirnov
    fftools/ffmpeg_filter : try to configure filtergraphs earlier

    When the filtergraph has no inputs, it can be configured immediately
    
when all its outputs are bound to output streams. This will simplify
    
treating some corner cases.
    • [DH] fftools/ffmpeg_filter.c

  • avfilter/drawtext - implement fix_bounds

    11 janvier 2018, par Gyan Doshi
    avfilter/drawtext - implement fix_bounds

    When enabled, text, including effects like shadow or box, will be
    
completely bound within the video frame.
    

    Default value changed to false to keep continuity of behaviour.
    

    Fixes #6960.
    

    Signed-off-by : Kyle Swanson <k@ylo.ph>
    • [DH] libavfilter/vf_drawtext.c

  • vulkan_encode : set the quality level in session parameters

    23 septembre 2024, par Víctor Manuel Jáquez Leal
    vulkan_encode : set the quality level in session parameters

    While running this command
    

    ./ffmpeg_g -loglevel debug -hwaccel vulkan -init_hw_device vulkan=vk:0,debug=1 -hwaccel_output_format vulkan -i input.y4m -vf 'format=nv12,hwupload' -c:v h264_vulkan -quality 2 output.mp4 -y
    

    It hit this validation error :
    

    Validation Error : [ VUID-vkCmdEncodeVideoKHR-None-08318 ] Object 0 : handle =
    
0x8f000000008f, type = VK_OBJECT_TYPE_VIDEO_SESSION_KHR ; Object 1 : handle =
    
0xfd00000000fd, type = VK_OBJECT_TYPE_VIDEO_SESSION_PARAMETERS_KHR ;
    
| MessageID = 0x5dc3dd39
    
| vkCmdEncodeVideoKHR() : The currently configured encode quality level (2) for
    
VkVideoSessionKHR 0x8f000000008f[] does not match the encode quality level (0)
    
VkVideoSessionParametersKHR 0xfd00000000fd[] was created with. The Vulkan spec
    
states : The bound video session parameters object must have been created with
    
the currently set video encode quality level for the bound video session at the
    
time the command is executed on the
    
device (https://www.khronos.org/registry/vulkan/specs/1.3-extensions/html/vkspec.html#VUID-vkCmdEncodeVideoKHR-None-08318)
    

    This patch adds a new function helper for creating session parameters, which
    
also sets the quality level and it's called by the H.264 and H.265 Vulkan
    
encoders.
    • [DH] libavcodec/vulkan_encode.c
    • [DH] libavcodec/vulkan_encode.h
    • [DH] libavcodec/vulkan_encode_h264.c
    • [DH] libavcodec/vulkan_encode_h265.c

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