[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Transcoder V1 API - Class Google::Cloud::Video::Transcoder::V1::MuxStream::Fmp4Config (v2.2.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.2.0 (latest)](/ruby/docs/reference/google-cloud-video-transcoder-v1/latest/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [2.1.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/2.1.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [2.0.1](/ruby/docs/reference/google-cloud-video-transcoder-v1/2.0.1/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [1.2.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/1.2.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [1.1.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/1.1.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [1.0.1](/ruby/docs/reference/google-cloud-video-transcoder-v1/1.0.1/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.13.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.13.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.12.2](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.12.2/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.11.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.11.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.10.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.10.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.9.1](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.9.1/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.8.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.8.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.7.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.7.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.6.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.6.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.5.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.5.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.4.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.4.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.3.0](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.3.0/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config)\n- [0.2.2](/ruby/docs/reference/google-cloud-video-transcoder-v1/0.2.2/Google-Cloud-Video-Transcoder-V1-MuxStream-Fmp4Config) \nReference documentation and code samples for the Transcoder V1 API class Google::Cloud::Video::Transcoder::V1::MuxStream::Fmp4Config.\n\n`fmp4` container configuration. \n\nInherits\n--------\n\n- Object \n\nExtended By\n-----------\n\n- Google::Protobuf::MessageExts::ClassMethods \n\nIncludes\n--------\n\n- Google::Protobuf::MessageExts\n\nMethods\n-------\n\n### #codec_tag\n\n def codec_tag() -\u003e ::String\n\n**Returns**\n\n- (::String) --- Optional. Specify the codec tag string that will be used in the media\n bitstream. When not specified, the codec appropriate value is used.\n\n Supported H265 codec tags:\n - `hvc1` (default)\n - `hev1`\n\n### #codec_tag=\n\n def codec_tag=(value) -\u003e ::String\n\n**Parameter**\n\n- **value** (::String) ---\n\n Optional. Specify the codec tag string that will be used in the media\n bitstream. When not specified, the codec appropriate value is used.\n\n Supported H265 codec tags:\n - `hvc1` (default)\n- `hev1` \n**Returns**\n\n- (::String) --- Optional. Specify the codec tag string that will be used in the media\n bitstream. When not specified, the codec appropriate value is used.\n\n Supported H265 codec tags:\n - `hvc1` (default)\n - `hev1`"]]