Python实现将wav转amr,并转换成hex数组
目录
将wav转amr,并转换成hex数组
直接上代码
执行generate_audio_file.py
已经生成对应的.h文件
总结
将wav转amr,并转换成hex数组将wav文件快速转为amr，同时将arm文件转为16进制数组，保存在对应.h文件，供嵌入式设备使用（无文件系统产品(⊙o⊙)哦）
直接上代码generate_audio_file.py
from __future__ import print_function
from builtins import range
import os
import wave
import struct
import time
import re
import subprocess
import binascii
# eric 2020年7月10日
# wav文件转PCM数组
def get_wave_array_str(filename, target_bits):
wave_read = wave.open(filename, "r")
array_str = "// start\n\t"
nchannels, sampwidth, framerate, nframes, comptype, compname = wave_read.getparams()
sampwidth *= 8
for i in range(wave_read.getnframes()):
val, = struct.unpack("<H", wave_read.readframes(1))
scale_val = (1 << target_bits) - 1
cur_lim = (1 << sampwidth) - 1
# scale current data to 8-bit data
val = val * scale_val / cur_lim
val = int(val + ((scale_val + 1) // 2)) & scale_val
array_str += "0x%02x, " % (val)
if (i + 1) % 16 == 0:
array_str += "\n\t"
return array_str
# PCM 数组合并
def gen_wave_table(wav_file_list, target_file_name, scale_bits=8):
with open(target_file_name, "w") as audio_table:
print('#include <stdio.h>', file=audio_table)
print("// time:{}".format(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))), file=audio_table)
print('const unsigned char audio_table[] = {', file=audio_table)
for wav in wav_file_list:
print("processing: {}".format(wav))
print('//name:{}\n'.format(wav), file=audio_table)
print(get_wave_array_str(filename=wav, target_bits=scale_bits), file=audio_table)
print('};\n', file=audio_table)
print("Done...")
# 获取wav文件信息
def get_wave_info(filename):
wave_read = wave.open(filename, "r")
nchannels, sampwidth, framerate, nframes, comptype, compname = wave_read.getparams()
print('nchannels:{}'.format(nchannels))
print('sampwidth:{}'.format(sampwidth))
print('framerate:{}Hz'.format(framerate))
print('nframes:{}'.format(nframes))
print('comptype:{}'.format(comptype))
print('compname:{}'.format(compname))
return framerate
# 二进制文件转数组
def file2array(filename,h_filename=None):
path, name = os.path.split(filename)
if h_filename is None:
h_filename = os.path.join(path, name.split('.')[0] +'.h')
array_str = '\n//total len:{} bytes\n'.format(os.path.getsize(filename))
array_str += 'const unsigned char '+name.split('.')[0]+'[]={\n\t'
# print(array_str)
h_file = open(h_filename, "w")
file = open(filename, 'rb')
try:
while True:
chunk = file.read(16*32)
if not chunk:
break
for i in range(len(chunk)):
array_str += "0x%02x, " % (chunk[i])
if (i + 1) % 16 == 0:
array_str += "\n\t"
# print('get:{}'.format(binascii.b2a_hex(chunk)))
except:
print('read ERR')
finally:
print('read file done!')
array_str += '\n};\r\n'
# print('array='+array_str)
print(array_str, file=h_file)
h_file.close()
file.close()
return 0
# ffmpeg路径
ffpeg_path = 'D:/Program Files (x86)/QveAudio/'
# amr文件转MP3
def amr2mp3(amr_path,mp3_path=None):
path, name = os.path.split(amr_path)
if name.split('.')[-1]!='amr':
print('not a amr file')
return 0
if mp3_path is None or mp3_path.split('.')[-1]!='mp3':
mp3_path = os.path.join(path, name.split('.')[0] +'.mp3')
error = subprocess.call(['ffmpeg/bin/ffmpeg','-i',amr_path,mp3_path])
print('ERR:'+error)
if error:
return 0
print ('success')
return mp3_path
# wav文件转amr,wav必须为8000Hz
def wave2amr(wave_path,amr_path=None):
path, name = os.path.split(wave_path)
if name.split('.')[-1]!='wav':
print ('not a wave file')
return 0
if amr_path is None or amr_path.split('.')[-1]!='amr':
amr_path = os.path.join(path, name.split('.')[0] +'.amr')
error = subprocess.call([ffpeg_path+'ffmpeg','-i',wave_path,'-y',amr_path])
print('ERR:{}'.format(error))
if error:
return 0
print ('amr success')
return amr_path
# wav 格式化为8000Hz
def wave2Hz8000(wave_path,out_path=None):
path, name = os.path.split(wave_path)
if name.split('.')[-1]!='wav':
print ('not a wave file')
return 0
if out_path is None or wave_path.split('.')[-1]!='wav':
out_path = os.path.join(path, name.split('.')[0] +'_8k.wav')
# error = subprocess.call([ffpeg_path+'ffmpeg','-i',wave_path,'-ar','8000','-y',out_path])
error = subprocess.call(ffpeg_path+'ffmpeg'+' -i '+wave_path+' -ar 8000 -y '+out_path)
print('ERR:{}'.format(error))
if error:
return 0
print ('wav success')
return out_path
# 将目录下所有wav文件转为amr，并转为对应的数组文件
if __name__ == '__main__':
print("Generating audio array...")
# wav_list = []
for filename in os.listdir("./"):
# print(os.getcwd())
if filename.endswith(".wav"):
print('src_name:',filename)
framerate = get_wave_info(filename)
if framerate != 8000:
print('to 8000Hz')
filename = wave2Hz8000(filename)
amr_file = wave2amr(filename)
if amr_file!=0:
file2array(amr_file)
# dst_name = "0_"+filename
# print('dst_name:',filename)
# os.rename(filename, dst_name)
# wav_list.append(filename)
# gen_wave_table(wav_file_list=wav_list, target_file_name="audio_example_file.h")
以上代码实现的功能：
将当前目录下的所有wav文件，转为8kHz的wav
将对应的8kHz wav，转为amr
将对应的amr，转为hex数组，并保存在.h文件中
注意：音频的转换用的ffmpeg，使用前需确认对应的路径
ffpeg_path = 'D:/Program Files (x86)/QveAudio/'
转换前文件：
E:\Users\eric\Desktop\tools2>generate_audio_file.py
Generating audio array...
src_name: sample_00.wav
nchannels:1
sampwidth:2
framerate:16000Hz
nframes:11541
comptype:NONE
compname:not compressed
to 8000Hz
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_00.wav':
Duration: 00:00:00.72, bitrate: 256 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'sample_00_8k.wav':
Metadata:
ISFT : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 11kB time=00:00:00.72 bitrate= 128.9kbits/s speed= 103x
video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.675793%
ERR:0
wav success
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_00_8k.wav':
Metadata:
encoder : Lavf58.3.100
Duration: 00:00:00.72, bitrate: 128 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> amr_nb (libopencore_amrnb))
Press [q] to stop, [?] for help
[libopencore_amrnb @ 043f2d80] bitrate not supported: use one of 4.75k, 5.15k, 5.90k, 6.70k, 7.40k, 7.95k, 10.20k, 12.20k, using 12.20k
Output #0, amr, to 'sample_00_8k.amr':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: amr_nb (libopencore_amrnb), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 libopencore_amrnb
size= 1kB time=00:00:00.73 bitrate= 13.0kbits/s speed= 105x
video:0kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.506757%
ERR:0
amr success
read file done!
src_name: sample_00_8k.wav
nchannels:1
sampwidth:2
framerate:8000Hz
nframes:5771
comptype:NONE
compname:not compressed
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_00_8k.wav':
Metadata:
encoder : Lavf58.3.100
Duration: 00:00:00.72, bitrate: 128 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> amr_nb (libopencore_amrnb))
Press [q] to stop, [?] for help
[libopencore_amrnb @ 03a02d80] bitrate not supported: use one of 4.75k, 5.15k, 5.90k, 6.70k, 7.40k, 7.95k, 10.20k, 12.20k, using 12.20k
Output #0, amr, to 'sample_00_8k.amr':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: amr_nb (libopencore_amrnb), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 libopencore_amrnb
size= 1kB time=00:00:00.73 bitrate= 13.0kbits/s speed=16.4x
video:0kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.506757%
ERR:0
amr success
read file done!
src_name: sample_01.wav
nchannels:1
sampwidth:2
framerate:16000Hz
nframes:16904
comptype:NONE
compname:not compressed
to 8000Hz
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_01.wav':
Duration: 00:00:01.06, bitrate: 256 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'sample_01_8k.wav':
Metadata:
ISFT : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 17kB time=00:00:01.05 bitrate= 128.6kbits/s speed=44.1x
video:0kB audio:17kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.461429%
ERR:0
wav success
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_01_8k.wav':
Metadata:
encoder : Lavf58.3.100
Duration: 00:00:01.06, bitrate: 128 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> amr_nb (libopencore_amrnb))
Press [q] to stop, [?] for help
[libopencore_amrnb @ 037c1ec0] bitrate not supported: use one of 4.75k, 5.15k, 5.90k, 6.70k, 7.40k, 7.95k, 10.20k, 12.20k, using 12.20k
Output #0, amr, to 'sample_01_8k.amr':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: amr_nb (libopencore_amrnb), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 libopencore_amrnb
size= 2kB time=00:00:01.07 bitrate= 12.9kbits/s speed= 43x
video:0kB audio:2kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.347222%
ERR:0
amr success
read file done!
src_name: sample_01_8k.wav
nchannels:1
sampwidth:2
framerate:8000Hz
nframes:8452
comptype:NONE
compname:not compressed
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_01_8k.wav':
Metadata:
encoder : Lavf58.3.100
Duration: 00:00:01.06, bitrate: 128 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> amr_nb (libopencore_amrnb))
Press [q] to stop, [?] for help
[libopencore_amrnb @ 03b81ec0] bitrate not supported: use one of 4.75k, 5.15k, 5.90k, 6.70k, 7.40k, 7.95k, 10.20k, 12.20k, using 12.20k
Output #0, amr, to 'sample_01_8k.amr':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: amr_nb (libopencore_amrnb), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 libopencore_amrnb
size= 2kB time=00:00:01.07 bitrate= 12.9kbits/s speed=38.5x
video:0kB audio:2kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.347222%
ERR:0
amr success
read file done!
src_name: sample_02.wav
nchannels:1
sampwidth:2
framerate:16000Hz
nframes:51067
comptype:NONE
compname:not compressed
to 8000Hz
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_02.wav':
Duration: 00:00:03.19, bitrate: 256 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'sample_02_8k.wav':
Metadata:
ISFT : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 50kB time=00:00:03.19 bitrate= 128.2kbits/s speed= 457x
video:0kB audio:50kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.152738%
ERR:0
wav success
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_02_8k.wav':
Metadata:
encoder : Lavf58.3.100
Duration: 00:00:03.19, bitrate: 128 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> amr_nb (libopencore_amrnb))
Press [q] to stop, [?] for help
[libopencore_amrnb @ 03f50900] bitrate not supported: use one of 4.75k, 5.15k, 5.90k, 6.70k, 7.40k, 7.95k, 10.20k, 12.20k, using 12.20k
Output #0, amr, to 'sample_02_8k.amr':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: amr_nb (libopencore_amrnb), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 libopencore_amrnb
size= 5kB time=00:00:03.19 bitrate= 12.8kbits/s speed= 160x
video:0kB audio:5kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.117188%
ERR:0
amr success
read file done!
src_name: sample_02_8k.wav
nchannels:1
sampwidth:2
framerate:8000Hz
nframes:25534
comptype:NONE
compname:not compressed
ffmpeg version N-89672-g41e51fbcd9 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'sample_02_8k.wav':
Metadata:
encoder : Lavf58.3.100
Duration: 00:00:03.19, bitrate: 128 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> amr_nb (libopencore_amrnb))
Press [q] to stop, [?] for help
[libopencore_amrnb @ 039b0900] bitrate not supported: use one of 4.75k, 5.15k, 5.90k, 6.70k, 7.40k, 7.95k, 10.20k, 12.20k, using 12.20k
Output #0, amr, to 'sample_02_8k.amr':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: amr_nb (libopencore_amrnb), 8000 Hz, mono, s16, 128 kb/s
Metadata:
encoder : Lavc58.9.100 libopencore_amrnb
size= 5kB time=00:00:03.19 bitrate= 12.8kbits/s speed= 146x
video:0kB audio:5kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.117188%
ERR:0
amr success
read file done!
E:\Users\eric\Desktop\tools2>
已经生成对应的.h文件
生成的格式如下：
//total len:1190 bytes
const unsigned char sample_00_8k[]={
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0xb0, 0x00, 0xc4, 0x63, 0xfc, 0xf0, 0x3c, 0x59, 0x33, 0x63, 0x77, 0xf4, 0xde, 0x09, 0x7e, 0x01,
0x00, 0xdc, 0xa5, 0xe9, 0xfa, 0x44, 0xc3, 0x1e, 0x1f, 0x19, 0x30, 0xc5, 0x60, 0xbd, 0xe2, 0x9c,
0x03, 0xdc, 0x22, 0xab, 0x72, 0x80, 0x3c, 0xbf, 0x01, 0x7f, 0x18, 0x0d, 0x08, 0x00, 0x5c, 0xa6,
0x6e, 0x11, 0xdd, 0x89, 0xcb, 0x6d, 0x5b, 0x7b, 0x3a, 0xea, 0x28, 0x39, 0x80, 0x0e, 0x01, 0xdf,
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0x45, 0x55, 0x54, 0xa1, 0x51, 0xb0, 0x3c, 0xb9, 0x2c, 0xd6, 0x5e, 0xeb, 0x04, 0x04, 0x1e, 0x09,
0x94, 0xcd, 0x57, 0x07, 0x82, 0x6b, 0xbf, 0xc5, 0x93, 0x51, 0xcc, 0x7f, 0x15, 0x96, 0x0e, 0x50,
0x81, 0xde, 0x79, 0xfd, 0xe0, 0x10, 0x3c, 0x71, 0x32, 0x1d, 0x5a, 0xba, 0x40, 0x40, 0x36, 0x9e,
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0x93, 0x51, 0x42, 0xbf, 0x4c, 0x40, 0x3c, 0xdf, 0x2c, 0x1d, 0x2a, 0xb8, 0xbe, 0x84, 0xdc, 0x23,
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0x87, 0x0c, 0xe8, 0x5d, 0xd1, 0xc3, 0x25, 0xb8, 0x85, 0x67, 0x90, 0xdd, 0x84, 0x70, 0xd0, 0x48,
0xd5, 0xd0, 0x7a, 0xad, 0x7a, 0xb0, 0x3c, 0xb6, 0xec, 0x1f, 0x0f, 0x75, 0xe4, 0x2a, 0x3a, 0x47,
0x23, 0x13, 0xf7, 0x02, 0x84, 0x03, 0x17, 0x42, 0xe7, 0x72, 0x21, 0x5e, 0xc8, 0x03, 0x5c, 0x80,
0x49, 0x89, 0x28, 0x80, 0x70, 0x30, 0x3c, 0x55, 0x32, 0x69, 0x43, 0xa9, 0xcc, 0x01, 0x14, 0xab,
0x83, 0x2c, 0xf3, 0x5d, 0xcf, 0xe3, 0x14, 0x39, 0xb3, 0x69, 0x1f, 0xee, 0xe8, 0xf1, 0xd2, 0x9c,
0x96, 0x2d, 0x80, 0x3c, 0xa6, 0x20, 0x3c, 0x42, 0xf3, 0x97, 0x22, 0xaa, 0x72, 0x11, 0x10, 0xee,
0xd8, 0xb6, 0x3b, 0x0c, 0x72, 0xed, 0xf7, 0xc2, 0xbc, 0xbc, 0x3a, 0xbc, 0xe5, 0x64, 0x9b, 0xc6,
0x51, 0xe8, 0xba, 0x7b, 0xcc, 0xc0, 0x3c, 0x91, 0x32, 0x23, 0x08, 0x58, 0x06, 0x1c, 0xfc, 0x21,
0xad, 0xba, 0xa7, 0x00, 0x1f, 0xcf, 0xf2, 0x88, 0x21, 0xe7, 0xe9, 0x62, 0xe6, 0x5c, 0xcd, 0x78,
0xa7, 0x39, 0x83, 0x5d, 0xf8, 0xa0, 0x3c, 0x95, 0x28, 0x69, 0x5d, 0x37, 0xae, 0x16, 0x9e, 0x00,
0x3a, 0x82, 0x0a, 0x22, 0xcf, 0x19, 0xb1, 0x34, 0x32, 0x57, 0x06, 0xc6, 0x86, 0xb0, 0x83, 0x9f,
0x98, 0xb3, 0x55, 0xa0, 0xc6, 0x50, 0x3c, 0x55, 0x27, 0x7f, 0x10, 0x06, 0xd8, 0x00, 0x01, 0x10,
0xaf, 0x0b, 0xae, 0x64, 0x24, 0xc4, 0x49, 0x79, 0x69, 0xba, 0x05, 0x94, 0x20, 0x02, 0x46, 0x30,
0x0c, 0x30, 0x04, 0x3a, 0x49, 0x00,
};
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持软件开发网。
