Tôi có hai video khác nhau mà tôi đang cố tải vào VideoView
bằng cách sử dụng
videoView.setVideoURI(Uri.parse(url));
Hai video, giả sử là video 1 và video 2 , có các thông số kỹ thuật sau (trích xuất bằng cách sử dụng ffmpeg -i
); trên thực tế, chúng là hai mã hóa khác nhau của cùng một video:
Video 1:
Seems stream 0 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 90000.00 (180000/2) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '4fbfd5ece4b0932236fc234d.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42isomavc1 creation_time : 2011-12-03 04:43:46 genre : Trailer artist : Paramount Pictures title : Captain America: The First Avenger - Theatrical Trailer #2 encoder : HandBrake 4344svn 2011111001 date : 2011 Duration: 00:02:30.67, start: 0.000000, bitrate: 6738 kb/s Stream #0.0(und): Video: h264 (High), yuv420p, 1920x800 [PAR 1:1 DAR 12:5], 6575 kb/s, 23.97 fps, 90k tbr, 90k tbn, 180k tbc Metadata: creation_time : 2011-12-03 04:43:46 Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16, 159 kb/s Metadata: creation_time : 2011-12-03 04:43:46
Video 2:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '500416ea44aeb4b95d5ae8a0_hd.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 2011-12-03 04:43:46 title : Captain America: The First Avenger - Theatrical Trailer #2 artist : Paramount Pictures date : 2011 encoder : Lavf53.32.100 genre : Trailer Duration: 00:02:30.69, start: 0.000000, bitrate: 2045 kb/s Stream #0.0(und): Video: h264 (High), yuv420p, 1280x720 [PAR 27:20 DAR 12:5], 1889 kb/s, 23.99 fps, 90k tbr, 180k tbn, 180k tbc Metadata: creation_time : 2011-12-03 04:43:46 Stream #0.1(eng): Audio: aac, 44100 Hz, stereo, s16, 151 kb/s Metadata: creation_time : 2011-12-03 04:43:46
Tôi biết rằng hỗ trợ AAC đi kèm với Honeycomb, và do đó tôi đã thử nghiệm video với một số thiết bị; Các kết quả được đưa ra dưới đây:
SGS II with custom 4.0.3 OS(Sensation ROM 3.4 with CF-Root kernel) - Video 1:OK - Video2:OK
SGS I with Samsung 2.3.3 OS - Video 1:error (1, -2147483648) - Video 2:OK
SGS I with custom 4.0.3 OS(ICS SGS TEAM ROM with Devil kernel) - Video 1:error (1, -2147483648) - Video 2:OK
Nexus One with original 2.3.6 OS - Video 1:See (1) below - Video 2:See (2) below
Emulator with 2.2 OS - Video 1:error (1, -2147483648) - Video 2:error (1, -2147483648)
Emulator with 4.0.3 OS - Video 1:error (1, -2147483648) - Video 2:error (1, -2147483648)
Cả hai video đều phát tốt trong Google Chrome trên PC. Có thể hữu ích khi thêm rằng trong trường hợp OK, cả video và âm thanh đều phát chính xác. Trong trường hợp lỗi (1, -2147483648), cùng một nhật ký được đăng từ tất cả các thiết bị (ngoại trừ Nexus One):
07-18 10:25:10.996: I/MediaPlayer(17860): uri is:http://s3-eu-west-1.amazonaws.com/cf-templates-k6ohn88yswx5-eu-west-1/videos/4fbc88e7e4b0b0896e877764/4fbfd5ece4b0932236fc234d.mp4
07-18 10:25:10.996: I/MediaPlayer(17860): path is null
07-18 10:25:10.996: D/MediaPlayer(17860): Couldn't open file on client side, trying server side
07-18 10:25:39.859: D/MediaPlayer(17860): getMetadata
07-18 10:25:45.070: E/MediaPlayer(17860): error (1, -2147483648)
07-18 10:25:45.074: E/MediaPlayer(17860): Error (1,-2147483648)
07-18 10:25:45.078: D/VideoView(17860): Error: 1,-2147483648
Trong trường hợp (1), nhật ký sau được sao chép từ Nexus One và video không bao giờ tải:
07-18 13:49:20.115: D/MediaPlayer(10109): Couldn't open file on client side, trying server side
07-18 13:49:20.115: I/StagefrightPlayer(68): setDataSource('http://s3-eu-west-1.amazonaws.com/cf-templates-k6ohn88yswx5-eu-west-1/videos/4fbc88e7e4b0b0896e877764/4fbfd5ece4b0932236fc234d.mp4')
07-18 13:49:20.135: I/NuHTTPDataSource(68): connect to s3-eu-west-1.amazonaws.com:80/cf-templates-k6ohn88yswx5-eu-west-1/videos/4fbc88e7e4b0b0896e877764/4fbfd5ece4b0932236fc234d.mp4 @0
07-18 13:49:20.155: I/ActivityManager(98): Displayed com.woisio/.video.VideoActivity: +450ms
07-18 13:49:20.795: I/NuCachedSource2(68): Keep alive
07-18 13:49:22.185: I/OMXCodec(68): [OMX.qcom.video.decoder.avc] allocating 4 buffers of size 460800 on input port
07-18 13:49:22.195: I/OMXCodec(68): [OMX.qcom.video.decoder.avc] allocating 8 buffers of size 2304000 on output port
07-18 13:49:25.325: D/dalvikvm(9499): GC_EXPLICIT freed 13K, 50% free 2726K/5379K, external 1625K/2137K, paused 116ms
07-18 13:49:27.525: I/NuCachedSource2(68): Keep alive
07-18 13:49:28.235: I/NuCachedSource2(68): Cache full, done prefetching for now
07-18 13:49:30.275: D/dalvikvm(9902): GC_EXPLICIT freed 8K, 50% free 2714K/5379K, external 1625K/2137K, paused 69ms
07-18 13:49:34.255: D/Finsky(9066): [1] 5.onFinished: Installation state replication succeeded.
07-18 13:49:35.855: I/NuCachedSource2(68): Keep alive
07-18 13:49:39.055: D/dalvikvm(9911): GC_EXPLICIT freed 22K, 50% free 2710K/5379K, external 1625K/2137K, paused 38ms
07-18 13:49:42.575: I/NuCachedSource2(68): Keep alive
07-18 13:49:43.285: I/NuCachedSource2(68): Keep alive
07-18 13:49:44.095: D/dalvikvm(9918): GC_EXPLICIT freed 7K, 50% free 2708K/5379K, external 1625K/2137K, paused 66ms
07-18 13:49:49.085: D/dalvikvm(9925): GC_EXPLICIT freed 15K, 49% free 3268K/6407K, external 1625K/2137K, paused 50ms
07-18 13:49:50.925: I/NuCachedSource2(68): Keep alive
07-18 13:49:54.115: D/dalvikvm(6756): GC_EXPLICIT freed 9K, 44% free 3774K/6727K, external 1625K/2137K, paused 77ms
07-18 13:49:57.685: I/NuCachedSource2(68): Keep alive
07-18 13:49:58.375: I/NuCachedSource2(68): Keep alive
07-18 13:49:59.105: D/dalvikvm(9066): GC_EXPLICIT freed 385K, 53% free 3186K/6727K, external 1625K/2137K, paused 66ms
07-18 13:50:05.955: I/NuCachedSource2(68): Keep alive
07-18 13:50:06.045: D/dalvikvm(8047): GC_EXPLICIT freed 9K, 47% free 3830K/7111K, external 1625K/2137K, paused 86ms
07-18 13:50:09.465: I/3gw.Service(488): Mobile Network not connected - not roaming
07-18 13:50:12.765: I/NuCachedSource2(68): Keep alive
07-18 13:50:13.465: I/NuCachedSource2(68): Keep alive
07-18 13:50:18.775: I/WindowManager(98): Setting rotation to 3, animFlags=0
07-18 13:50:18.795: I/ActivityManager(98): Config changed: { scale=1.0 imsi=286/2 loc=en_US touch=3 keys=1/1/2 nav=3/1 orien=2 layout=34 uiMode=17 seq=34}
07-18 13:50:18.895: D/dalvikvm(169): GC_EXTERNAL_ALLOC freed 108K, 48% free 3253K/6215K, external 5172K/5180K, paused 37ms
07-18 13:50:21.005: I/NuCachedSource2(68): Keep alive
07-18 13:50:21.265: D/dalvikvm(98): GC_EXPLICIT freed 394K, 42% free 6631K/11335K, external 4458K/5567K, paused 109ms
Trong trường hợp (2), nhật ký sau được đăng từ Nexus One và như bạn có thể thấy, kết thúc bằng lỗi (1, -2147483648):
07-18 13:47:03.595: D/MediaPlayer(10059): Couldn't open file on client side, trying server side
07-18 13:47:03.595: I/StagefrightPlayer(68): setDataSource('http://s3-eu-west-1.amazonaws.com/cf-templates-k6ohn88yswx5-eu-west-1/videos/4ff4514444aec3d2f9f07ead/500416ea44aeb4b95d5ae8a0_hd.mp4')
07-18 13:47:03.605: I/NuHTTPDataSource(68): connect to s3-eu-west-1.amazonaws.com:80/cf-templates-k6ohn88yswx5-eu-west-1/videos/4ff4514444aec3d2f9f07ead/500416ea44aeb4b95d5ae8a0_hd.mp4 @0
07-18 13:47:03.625: I/ActivityManager(98): Displayed com.woisio/.video.VideoActivity: +505ms
07-18 13:47:05.355: I/OMXCodec(68): [OMX.qcom.video.decoder.avc] allocating 4 buffers of size 460800 on input port
07-18 13:47:05.355: I/OMXCodec(68): [OMX.qcom.video.decoder.avc] allocating 8 buffers of size 1382400 on output port
07-18 13:47:05.365: I/NuCachedSource2(68): Keep alive
07-18 13:47:08.375: D/MediaPlayer(10059): getMetadata
07-18 13:47:08.745: D/dalvikvm(9925): GC_EXPLICIT freed 651K, 49% free 3275K/6407K, external 1625K/2137K, paused 68ms
07-18 13:47:09.205: I/3gw.Service(488): Mobile Network not connected - not roaming
07-18 13:47:11.565: I/NuCachedSource2(68): Cache full, done prefetching for now
07-18 13:47:12.095: I/NuCachedSource2(68): Keep alive
07-18 13:47:14.245: W/QCvdec(68): H264_Utils::check_header
07-18 13:47:14.245: W/QCvdec(68): check_header: start code 33
07-18 13:47:14.245: W/QCvdec(68): H264_Utils::check_header
07-18 13:47:14.245: W/QCvdec(68): check_header: start code 10
07-18 13:47:14.245: W/QCvdec(68): Parsing Error unsupported profile or level
07-18 13:47:14.245: W/QCvdec(68): ETB in Invalid State
07-18 13:47:14.245: E/OMXCodec(68): [OMX.qcom.video.decoder.avc] ERROR(0x8000100a, 0)
07-18 13:47:14.245: E/MediaPlayer(10059): error (1, -2147483648)
07-18 13:47:14.285: E/MediaPlayer(10059): Error (1,-2147483648)
07-18 13:47:14.285: D/VideoView(10059): Error: 1,-2147483648
Từ những gì tôi đã đọc, lỗi (1, -2147483648) có thể tương ứng với codec không được hỗ trợ, siêu dữ liệu bị hỏng hoặc tiêu đề tệp không chính xác. Nếu đúng như vậy, bạn có thể chỉ cho tôi hướng đi đúng để sử dụng codec nào không? Cảm ơn.