最近压一张DVD(做了IVTC),用dg直接分离出音轨,混流后发现音频出现了大约200ms的延迟。
后来改用eac来处理音轨,发现音频延迟的问题更严重了(出现500ms以上的延迟)
mmg混流时添加delay无效
对于这个问题大家有什么思路?
DGlog:
Stream Type: MPEG2 Program
Profile: main@main
Frame Size: 720x576
Display Size: [not specified]
Aspect Ratio: 4:3 [2]
Frame Rate: 25.000000 fps
Video Type: PAL
Frame Type: Interlaced
Coding Type: P
Colorimetry: BT.470-2 B,G*
Frame Structure: Frame
Field Order: Top
Coded Number: 672
Playback Number: 672
Frame Repeats: 0
Field Repeats: 0
VOB ID: 9
Cell ID: 1
Bitrate: 4.896 Mbps
Bitrate (Avg): 4.996 Mbps
Bitrate (Max): 5.089 Mbps
Audio Stream: c0: MPA L2 2ch 48 224
Timestamp: 0:11:00
Elapsed: 0:00:26
Remain: 0:00:38
FPS: 25.00
Info:
eac log
VOB, 1 video track, 1 audio track, 0:11:35
1: Joined VOB file
2: MPEG2, 576i50 (4:3)
3: MP2, 2.0 channels, 224kbps, 48kHz, 3ms
[a03] Extracting audio track number 3...
[a03] A remaining delay of +3ms could not be fixed.
[a03] Creating file "E:\海尔兄弟四部合辑\第一部\19~27\VIDEO_TS\1.mp2"...
[a03] Audio has a gap of 88ms at playtime 0:11:44. <WARNING>
[a03] Audio has a gap of 112ms at playtime 0:24:24. <WARNING>
[a03] Audio has a gap of 136ms at playtime 0:36:29. <WARNING>
[a03] Audio has a gap of 40ms at playtime 0:48:14. <WARNING>
[a03] Audio has a gap of 16ms at playtime 0:59:20. <WARNING>
[a03] Audio has a gap of 88ms at playtime 1:22:31. <WARNING>
[a03] Starting 2nd pass...
[a03] Realizing MPx gaps...
[a03] Creating file "E:\海尔兄弟四部合辑\第一部\19~27\VIDEO_TS\1.mp2"...
Video track 2 contains 158907 frames.
eac3to processing took exactly 1 minute.
Done.
后来改用eac来处理音轨,发现音频延迟的问题更严重了(出现500ms以上的延迟)
mmg混流时添加delay无效
对于这个问题大家有什么思路?
DGlog:
Stream Type: MPEG2 Program
Profile: main@main
Frame Size: 720x576
Display Size: [not specified]
Aspect Ratio: 4:3 [2]
Frame Rate: 25.000000 fps
Video Type: PAL
Frame Type: Interlaced
Coding Type: P
Colorimetry: BT.470-2 B,G*
Frame Structure: Frame
Field Order: Top
Coded Number: 672
Playback Number: 672
Frame Repeats: 0
Field Repeats: 0
VOB ID: 9
Cell ID: 1
Bitrate: 4.896 Mbps
Bitrate (Avg): 4.996 Mbps
Bitrate (Max): 5.089 Mbps
Audio Stream: c0: MPA L2 2ch 48 224
Timestamp: 0:11:00
Elapsed: 0:00:26
Remain: 0:00:38
FPS: 25.00
Info:
eac log
VOB, 1 video track, 1 audio track, 0:11:35
1: Joined VOB file
2: MPEG2, 576i50 (4:3)
3: MP2, 2.0 channels, 224kbps, 48kHz, 3ms
[a03] Extracting audio track number 3...
[a03] A remaining delay of +3ms could not be fixed.
[a03] Creating file "E:\海尔兄弟四部合辑\第一部\19~27\VIDEO_TS\1.mp2"...
[a03] Audio has a gap of 88ms at playtime 0:11:44. <WARNING>
[a03] Audio has a gap of 112ms at playtime 0:24:24. <WARNING>
[a03] Audio has a gap of 136ms at playtime 0:36:29. <WARNING>
[a03] Audio has a gap of 40ms at playtime 0:48:14. <WARNING>
[a03] Audio has a gap of 16ms at playtime 0:59:20. <WARNING>
[a03] Audio has a gap of 88ms at playtime 1:22:31. <WARNING>
[a03] Starting 2nd pass...
[a03] Realizing MPx gaps...
[a03] Creating file "E:\海尔兄弟四部合辑\第一部\19~27\VIDEO_TS\1.mp2"...
Video track 2 contains 158907 frames.
eac3to processing took exactly 1 minute.
Done.