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#4565 (MP2 in AVI (possibly) wrong frame_size/blkalign ...
https://trac.ffmpeg.org/ticket/4565#:~:text=Am%20I%20wrong%20in%20assuming%20that%20the%20wav,Sample%20rate%3A%2048000%2C%20Channels%3A%202%20Frame%20size%3A%20480
MP2 - MPEG Layer 2 Audio File Format
https://docs.fileformat.com/audio/mp2/
dual channel (uncorrelated) format Some important technical specifications of MP2 are given in the table below: Specification. Description. Sampling rates. 32, 44.1 and 48 kHz. Bit rates. 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 and 384 kbit/s. Additional sampling rates.
General knowledge of MP2 format - Apowersoft
https://www.apowersoft.com/what-is-mp2-format.html
In the mid 1990s, the MP2 was developed and started to use for broadcasting audio. The development of the MP3 format is to further compress files but still remains a faithful reproduction of the original uncompressed audio files. Bitrates: 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 and 384 kbit/s.
#4565 (MP2 in AVI (possibly) wrong frame_size/blkalign ...
https://trac.ffmpeg.org/ticket/4565
For MP2 audio streams blkalign = frame_size = 1152 (hard coded) while I think if the encoder has reported block_align ff_put_wav_header might use it for MP2 audio. Am I wrong in assuming that the wav header block align should be different for the following types of MP2 audio: Bitrate: 64000, Sample rate: 48000, Channels: 1 Frame size: 192.
MPEG-2 - Wikipedia
https://en.wikipedia.org/wiki/MPEG-2
640 × 480 pixel (4:3, square pixels), at 60p, 59.94p, 30p, 29.97p, 24p, 23.976p, 60i, or 59.94i. ATSC standard A/63 defines additional resolutions and aspect rates for 50 Hz (PAL) signal. The ATSC specification and MPEG-2 allow the use of progressive frames, even within an …
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