2月16日的Precise Frame mpv Video Player应用程序分析

Summary: Ad-free video player for android with rare features not found in most popular players. Focuses on precise control of the playback such as volume level, video seek, etc. Rare Features - Exact seek: seek video exact to the millisecond (fast forward / rewind) - Frame step: step the video frame by frame - Adjust seek precision: adjust how exact you want the video seek to be (precise to 1 millisecond) - Toggle display of current millisecond timestamp and frame number during playback - Separate volume: volume control separate from the device volume with precise volume level adjustment from 1% and option to boost volume up 1000 times (100,000%) - Support for complex styling in Advanced SubStation Alpha subtitles, and up to 2 subtitle tracks - Picture adjustments such as brightness, contrast, gamma, hue and saturation - 18-band audio equaliser GUI - Video filters such as scaling, debanding and interpolation - Quickly capture/snapshot current frame of video as image file - Extract and add external audio or subtitle tracks from a video URL or file Other Features: - Supports most popular video and audio formats - Adjust subtitle and audio sync/timing precise to decimal points of a second and support for large input value - Hardware acceleration for faster performance - Pan and zoom video - Play video with subtitles - Load external subtitle files - Automatically resume playback position of videos - Stream videos from the URL - Change playback speed during playback - Convenient touch gestures to seek video and change volume - Select video, audio and subtitle track during playback - Adjust video aspect ratio with preset or custom values - Lock controls - Open file using file chooser/device explorer - Choose whether to autohide and how long to show controls - A-B repeat part of video - Picture in picture mode - Background play Supported formats/codecs (also depends on your device hardware and Android version): File containers: - 3GPP (.3gp) - AMR - Audio Data Transport Stream (ADTS) / Advanced Audio Coding (AAC) - Audio Video Interleave (.avi) - Common Media Application Format (CMAF) - DivX / XviD - Flash Video (.flv) - Fragmented MP4 (fMP4) - Graphics Interchange Format (.gif) - Matroska (.mkv) - Ogg - MPEG-4 (.mp4) - MPEG-TS (.ts) - Waveform Audio File Format (WAV) - WebM (.webm) - Video formats: - AOMedia Video 1 (AV1) - H.263 - H.264 AVC Baseline Profile (BP) - H.264 AVC Main Profile (MP) - H.265 HEVC - MPEG-4 SP - VP8 - VP9 Audio formats: - Advanced Audio Coding Low Complexity (AAC LC) - enhanced low delay AAC (AAC ELD ) - Dolby AC-3 - Dolby Digital Plus / Enhanced AC-3 (E-AC-3) - Dolby TrueHD - DTS - DTS-HD - Apple Lossless (ALAC) - AMR-NB - AMR-WB - FLAC - GSM - HE-AACv1 (AAC+) - HE-AACv2 (enhanced AAC+) - MIDI - MP1, MP2, MP3 - Opus - PCM μ-law - PCM A-law - Vorbis - WAV Subtitle/closed caption formats: - Advanced SubStation Alpha - CEA-608 - SubRip - SubStationAlpha (SSA) - SMPTE-TT - TTML - WebVTT This app uses the following software libraries licensed under: Apache 2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Handle Path Oz (https://github.com/onimur/handle-path-oz) (https://github.com/onimur/handle-path-oz/blob/master/LICENSE) - mbedtls FreeType License (FTL) - FreeType (https://www.freetype.org/index.html) ISC license (https://opensource.org/licenses/ISC) - libass (https://github.com/libass/libass/blob/master/COPYING) MIT license (https://opensource.org/licenses/mit-license.html) - lua (https://www.lua.org/license.html) - mpv-android (https://github.com/mpv-android/mpv-android/blob/master/LICENSE) Old MIT license - harfbuzz (https://github.com/harfbuzz/harfbuzz/blob/master/COPYING) Unknown license - dav1d GNU Lesser General Public License, version 2.1 - FFmpeg (https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html) - mpv (https://github.com/mpv-player/mpv/blob/master/LICENSE.LGPL) - fribidi (https://github.com/fribidi/fribidi/blob/master/COPYING) - libplacebo