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2023-10-31 09:16:44 CST W44D2

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aggresss
2023-10-31 09:16:44 +08:00
parent f00ecdba54
commit 05345f7cdc
100 changed files with 3340 additions and 3229 deletions
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23
examples/filter-audio/main.go
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@@ -16,11 +16,14 @@ import (
)
const (
INPUT_SAMPLERATE = 48000
INPUT_FORMAT = ffmpeg.AV_SAMPLE_FMT_FLTP
INPUT_CHANNEL_LAYOUT = ffmpeg.AV_CH_LAYOUT_5POINT0
VOLUME_VAL = 0.90
FRAME_SIZE = 1024
INPUT_SAMPLERATE = 48000
INPUT_FORMAT = ffmpeg.AV_SAMPLE_FMT_FLTP
VOLUME_VAL = 0.90
FRAME_SIZE = 1024
)
var (
INPUT_CHANNEL_LAYOUT = ffmpeg.AV_CHANNEL_LAYOUT_5POINT0()
)
func initFilterGraph() (graph *ffmpeg.AVFilterGraph, src *ffmpeg.AVFilterContext, sink *ffmpeg.AVFilterContext, ret int32) {
@@ -53,8 +56,10 @@ func initFilterGraph() (graph *ffmpeg.AVFilterGraph, src *ffmpeg.AVFilterContext
return nil, nil, nil, ffmpeg.AVERROR(syscall.ENOMEM)
}
// Set the filter options through the AVOptions API.
ffmpeg.AvOptSet(abufferCtx, "channel_layout",
ffmpeg.AvGetChannelLayoutString(0, INPUT_CHANNEL_LAYOUT), ffmpeg.AV_OPT_SEARCH_CHILDREN)
ffmpeg.AvChannelLayoutDescribe(INPUT_CHANNEL_LAYOUT),
ffmpeg.AV_OPT_SEARCH_CHILDREN)
ffmpeg.AvOptSet(abufferCtx, "sample_fmt",
ffmpeg.AvGetSampleFmtName(INPUT_FORMAT), ffmpeg.AV_OPT_SEARCH_CHILDREN)
ffmpeg.AvOptSetQ(abufferCtx, "time_base",
@@ -155,7 +160,7 @@ func initFilterGraph() (graph *ffmpeg.AVFilterGraph, src *ffmpeg.AVFilterContext
// example just prints the MD5 checksum of each plane to stdout.
func processOutput(md5 *ffmpeg.AVMD5, frame *ffmpeg.AVFrame) int32 {
planar := ffmpeg.AvSampleFmtIsPlanar(frame.GetFormat())
channels := ffmpeg.AvGetChannelLayoutNbChannels(frame.GetChannelLayout())
channels := frame.GetChLayoutAddr().GetNbChannels()
planes := channels
if planar == 0 {
planes = 1
@@ -171,7 +176,7 @@ func processOutput(md5 *ffmpeg.AVMD5, frame *ffmpeg.AVFrame) int32 {
var checksum [16]uint8
ffmpeg.AvMd5Init(md5)
ffmpeg.AvMd5Sum(&checksum[0], &data[i][0], planeSize)
ffmpeg.AvMd5Sum(&checksum[0], &data[i][0], uintptr(planeSize))
fmt.Fprintf(os.Stdout, "plane %d: 0x", i)
for j := 0; j < len(checksum); j++ {
@@ -190,7 +195,7 @@ func getInput(frame *ffmpeg.AVFrame, frameNum int32) int32 {
// Set up the frame properties and allocate the buffer for the data.
frame.SetSampleRate(INPUT_SAMPLERATE)
frame.SetFormat(INPUT_FORMAT)
frame.SetChannelLayout(INPUT_CHANNEL_LAYOUT)
ffmpeg.AvChannelLayoutCopy(frame.GetChLayoutAddr(), INPUT_CHANNEL_LAYOUT)
frame.SetNbSamples(FRAME_SIZE)
frame.SetPts(int64(frameNum) * FRAME_SIZE)