这样做的目的是因为我的＆＃34; Smart＆＃34;三星电视没有播放MKV文件。
This thread提到不需要进行视频转换，只需更改容器即可。在阅读了有关如何将MKV容器更改为MP4的多个线程后，我从here下载并编译了具有libfdk_aac支持的FFMPEG。我尝试使用此命令转换样本MKV文件：
ffmpeg -i "C:\VideoTest\Sample1.mkv" -c:v copy -c:a libfdk_aac -b:a 384k "C:\VideoTest\Sample2.mp4"
但是收到以下错误（从命令提示符复制）：
[hevc @ 0000000000308ae0] Could not find ref with POC 113
[hevc @ 0000000000308ae0] Could not find ref with POC 111
[hevc @ 0000000000308ae0] Could not find ref with POC 109
[hevc @ 0000000000308ae0] Could not find ref with POC 107
Input #0, matroska,webm, from 'C:\VideoTest\Sample-1.mk
v':
Metadata:
encoder : libebml v1.3.0 + libmatroska v1.4.1
creation_time : 2014-07-16 08:54:02
Duration: 00:00:58.68, start: 0.042000, bitrate: 3520 kb/s
Chapter #0.0: start 0.000000, end 58.717000
Metadata:
title : Chapter 4
Stream #0:0: Video: hevc (Main), yuv420p(tv), 1920x816, SAR 1:1 DAR 40:17, 2
4 fps, 24 tbr, 1k tbn, 1k tbc (default)
Metadata:
_STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
Jun 9 2014 15:16:27
_STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
t on Jun 9 2014 15:16:27
_STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
_STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 2733260
BPS-eng : 2733260
DURATION : 00:00:58.667000000
DURATION-eng : 00:00:58.667000000
NUMBER_OF_FRAMES: 1408
NUMBER_OF_FRAMES-eng: 1408
NUMBER_OF_BYTES : 20044023
NUMBER_OF_BYTES-eng: 20044023
Stream #0:1: Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 768 kb/s (default)
Metadata:
_STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
Jun 9 2014 15:16:27
_STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
t on Jun 9 2014 15:16:27
_STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
_STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 767986
BPS-eng : 767986
DURATION : 00:00:58.625000000
DURATION-eng : 00:00:58.625000000
NUMBER_OF_FRAMES: 5496
NUMBER_OF_FRAMES-eng: 5496
NUMBER_OF_BYTES : 5627904
NUMBER_OF_BYTES-eng: 5627904
Stream #0:2(eng): Subtitle: hdmv_pgs_subtitle, 1920x1080 (default)
Metadata:
_STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
Jun 9 2014 15:16:27
_STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
t on Jun 9 2014 15:16:27
_STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
_STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 17485
BPS-eng : 17485
DURATION : 00:00:56.750000000
DURATION-eng : 00:00:56.750000000
NUMBER_OF_FRAMES: 40
NUMBER_OF_FRAMES-eng: 40
NUMBER_OF_BYTES : 124036
NUMBER_OF_BYTES-eng: 124036
Output #0, mp4, to 'C:\VideoTest\Sample.mp4':
Metadata:
encoder : Lavf56.1.100
Chapter #0.0: start 0.000000, end 58.675000
Metadata:
title : Chapter 4
Stream #0:0: Video: hevc ([35][0][0][0] / 0x0023), yuv420p, 1920x816 [SAR 1:
1 DAR 40:17], q=2-31, 24 fps, 16k tbn, 1k tbc (default)
Metadata:
_STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
Jun 9 2014 15:16:27
_STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
t on Jun 9 2014 15:16:27
_STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
_STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 2733260
BPS-eng : 2733260
DURATION : 00:00:58.667000000
DURATION-eng : 00:00:58.667000000
NUMBER_OF_FRAMES: 1408
NUMBER_OF_FRAMES-eng: 1408
NUMBER_OF_BYTES : 20044023
NUMBER_OF_BYTES-eng: 20044023
Stream #0:1: Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, 5.1
, s16, 128 kb/s (default)
Metadata:
_STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
Jun 9 2014 15:16:27
_STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
t on Jun 9 2014 15:16:27
_STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
_STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 767986
BPS-eng : 767986
DURATION : 00:00:58.625000000
DURATION-eng : 00:00:58.625000000
NUMBER_OF_FRAMES: 5496
NUMBER_OF_FRAMES-eng: 5496
NUMBER_OF_BYTES : 5627904
NUMBER_OF_BYTES-eng: 5627904
encoder : Lavc56.0.101 libfdk_aac
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (dts (dca) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[mp4 @ 0000000003be0500] Invalid DTS: 656 PTS: -672 in output stream 0:0
av_interleaved_write_frame(): Invalid argument
[libfdk_aac @ 00000000042fa640] Trying to remove 1024 samples, but the queue is
empty
[mp4 @ 0000000003be0500] Encoder did not produce proper pts, making some up.
[libfdk_aac @ 00000000042fa640] Trying to remove 1024 samples, but the queue is
empty
frame= 2 fps=0.0 q=-1.0 Lsize= 96kB time=00:00:00.04 bitrate=18415.0kbit
s/s
video:95kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB muxing ov
erhead: 0.570364%
Conversion failed!
也尝试使用此命令：
ffmpeg -i input.wav -c:a libfdk_aac -b:a 128k output.mp4
但是这会破坏视频质量，并且在播放过程中我开始看到一些不良的像素化补丁。
任何帮助都将不胜感激。
仅仅是一个FYI：通过阅读博客和帖子，我做到了这一点。我对视频转换知之甚少。
答案 0 :(得分：0)
如果您在第一次命令后无法播放视频，那么（显然）您的电视无法处理原始编码的视频流。所以 - 用另一个编解码器重新编码。这将产生高质量的重新编码版本（重新编码需要一段时间）：
ffmpeg -i input.mkv -qscale 1 -c:a libfdk_aac -b:a 384k output.mp4