@@ -2,10 +2,6 @@ import 'dart:async';
22import 'dart:convert' ;
33import 'dart:io' ;
44
5- import 'package:ffmpeg_kit_flutter_full_gpl/ffmpeg_kit.dart' ;
6- import 'package:ffmpeg_kit_flutter_full_gpl/ffprobe_kit.dart' ;
7- import 'package:ffmpeg_kit_flutter_full_gpl/return_code.dart' ;
8- import 'package:ffmpeg_kit_flutter_full_gpl/session_state.dart' ;
95import 'package:path_provider_platform_interface/path_provider_platform_interface.dart' ;
106import 'package:azlistview/azlistview.dart' ;
117import 'package:collection/collection.dart' ;
@@ -169,110 +165,6 @@ class IMUtils {
169165 return mediaInfo;
170166 }
171167
172- /// Extracts a thumbnail (PNG image) from the first frame of a video file.
173- ///
174- /// Returns the generated thumbnail file. If extraction fails, throws an exception.
175- static Future <File > getVideoThumbnail (File file) async {
176- final path = file.path;
177- final fileName = path.split ('/' ).last.split ('.' ).first; // Get base name without extension
178- final tempDir = await createTempDir (dir: 'video' );
179- final targetPath = '$tempDir /$fileName .png' ;
180-
181- // FFmpeg command to extract the first frame at 0 seconds
182- final ffmpegCommand = '-i "$path " -ss 0 -vframes 1 -q:v 15 -y "$targetPath "' ;
183- final session = await FFmpegKit .execute (ffmpegCommand);
184-
185- final state = await session.getState ();
186- final returnCode = await session.getReturnCode ();
187-
188- if (state == SessionState .failed || ! ReturnCode .isSuccess (returnCode)) {
189- Logger ().printError (info: 'Failed to generate thumbnail: $ffmpegCommand ' );
190- throw Exception ('Thumbnail extraction failed for $path ' );
191- }
192-
193- session.cancel ();
194- final thumbnail = File (targetPath);
195-
196- // Verify the thumbnail file exists
197- if (! thumbnail.existsSync ()) {
198- Logger ().printError (info: 'Thumbnail file not found at $targetPath ' );
199- throw Exception ('Thumbnail file was not created' );
200- }
201-
202- return thumbnail;
203- }
204-
205- /// compress video
206- /// Compresses a video file and returns the resulting file.
207- /// Aims for speed priority, moderate quality, and minimal file size while keeping resolution unchanged.
208- static Future <File ?> compressVideoAndGetFile (File file) async {
209- final path = file.path;
210- final fileName = path.split ('/' ).last;
211- final tempDir = await createTempDir (dir: 'video' );
212- final targetPath = '$tempDir /$fileName ' ;
213-
214- // Get media information using FFprobe
215- final mediaInfo = await FFprobeKit .getMediaInformation (path);
216- final streams = mediaInfo.getMediaInformation ()? .getStreams () ?? [];
217- final fileSize = int .tryParse (mediaInfo.getMediaInformation ()? .getSize () ?? '0' ) ?? 0 ;
218- mediaInfo.cancel ();
219-
220- // Check video and audio codecs
221- final isH264265 =
222- streams.any ((s) => s.getCodec ()? .contains ('h264' ) == true || s.getCodec ()? .contains ('hevc' ) == true );
223- final audioStream = streams.firstWhereOrNull ((s) => s.getType ()? .contains ('audio' ) == true );
224- final isAAC = audioStream? .getCodec ()? .toLowerCase ().contains ('aac' ) == true ;
225-
226- // If target file exists and is H.264, return it directly (assuming no further processing needed)
227- if (File (targetPath).existsSync () && isH264265) {
228- return File (targetPath);
229- }
230-
231- // Default FFmpeg command for compression
232- String ffmpegCommand = '-i "$path " -preset fast -crf 28 -threads 4 -c:a aac -b:a 96k -c:v libx264 -y "$targetPath "' ;
233-
234- if (isH264265) {
235- if (isAAC) {
236- const sizeThreshold = 50 * 1024 * 1024 ; // 50MB threshold
237- if (fileSize > sizeThreshold) {
238- // Compress video if size exceeds threshold
239- final compressed = await VideoCompress .compressVideo (
240- path,
241- quality: VideoQuality .Res1280x720Quality , // Moderate quality for smaller file size
242- );
243- Logger .print ('Compressed video size: ${compressed ?.file ?.lengthSync ()} bytes' );
244-
245- return compressed? .file ?? file; // Return compressed file or original on failure
246- } else {
247- // Copy file directly if below threshold
248- file.copySync (targetPath);
249-
250- return File (targetPath);
251- }
252- } else {
253- // Only convert audio to AAC, copy video stream for speed
254- ffmpegCommand = '-i "$path " -c:v copy -c:a aac -b:a 96k -threads 4 -y "$targetPath "' ;
255- }
256- }
257- // Execute FFmpeg command
258- Logger .print ('executing FFmpeg command: $ffmpegCommand ' );
259- final session = await FFmpegKit .execute (ffmpegCommand);
260- final state = await session.getState ();
261- final returnCode = await session.getReturnCode ();
262-
263- if (state == SessionState .failed || ! ReturnCode .isSuccess (returnCode)) {
264- // Log error and fallback to copying original file
265- Logger ().printError (info: "FFmpeg failed: $ffmpegCommand " );
266- file.copySync (targetPath);
267-
268- return File (targetPath);
269- }
270-
271- session.cancel ();
272-
273- return File (targetPath);
274- }
275-
276168 static Future <File ?> compressImageAndGetFile (File file, {int quality = 80 }) async {
277169 var path = file.path;
278170 var name = path.substring (path.lastIndexOf ("/" ) + 1 ).toLowerCase ();
0 commit comments