[mythtv-users] Keyframe identification in cutlist editor

[John Pilkington]

On 21/02/12 17:19, John Pilkington wrote:
> On 21/02/12 15:23, Jim Stichnoth wrote:

>>
>> Are you seeing this for MPEG-2 recordings, or h.264?  (or both?)
>>
>> Jim
>
> Almost all my experience is DVB-T MPEG-2, but a quick check on a DVB-T2
> H.264 recording shows the same problem.  Going backwards usually finds
> intermediates missed while going forwards.

My apologies: Partial Mediainfo for that recording follows.  I'll see 
what else I can find.

John P
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General
ID                                       : 16517 (0x4085)
Complete name                            : 
/mnt/f10store/myth/reca/1050_20120108202900.mpg
Format                                   : MPEG-TS
File size                                : 3.50 GiB
Duration                                 : 1h 28mn
Overall bit rate mode                    : Variable
Overall bit rate                         : 5 649 Kbps

Video
ID                                       : 6601 (0x19C9)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High at L4.0
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Format settings, GOP                     : M=8, N=24
Codec ID                                 : 27
Duration                                 : 1h 28mn
Width                                    : 1 440 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Color primaries                          : BT.709-5, BT.1361, IEC 
61966-2-4, SMPTE RP177
Transfer characteristics                 : BT.709-5, BT.1361
Matrix coefficients                      : BT.709-5, BT.1361, IEC 
61966-2-4 709, SMPTE RP177

Audio #1
ID                                       : 6602 (0x19CA)
Menu ID                                  : 1 (0x1)
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Muxing mode                              : LATM
Codec ID                                 : 17
Duration                                 : 1h 28mn
Bit rate mode                            : Variable
Minimum bit rate                         : 109 Kbps
Maximum bit rate                         : 174 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Delay relative to video                  : -1s 87ms
Language                                 : English
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