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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| using Sdcb.FFmpeg.Common; | ||
| using Sdcb.FFmpeg.Raw; | ||
| using System; | ||
| using System.Runtime.InteropServices; | ||
| using static Sdcb.FFmpeg.Raw.ffmpeg; | ||
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| namespace Sdcb.FFmpeg.Utils; | ||
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| public unsafe partial class BufferRef : SafeHandle | ||
| { | ||
| /// <summary>Allocate an AVBuffer of the given size using av_malloc().</summary> | ||
| public static BufferRef Alloc(int size) => new BufferRef(av_buffer_alloc((ulong)size), isOwner: true); | ||
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| /// <summary>Same as av_buffer_alloc(), except the returned buffer will be initialized to zero.</summary> | ||
| public static BufferRef AllocZ(int size) => new BufferRef(av_buffer_allocz((ulong)size), isOwner: true); | ||
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| /// <summary>Create a new reference to an AVBuffer.</summary> | ||
| public static BufferRef Ref(BufferRef other) => new BufferRef(av_buffer_ref(other), isOwner: true); | ||
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| /// <summary>Returns 1 if the caller may write to the data referred to by buf (which is true if and only if buf is the only reference to the underlying AVBuffer). Return 0 otherwise. A positive answer is valid until av_buffer_ref() is called on buf.</summary> | ||
| public bool IsWritable => av_buffer_is_writable(this) != 0; | ||
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| /// <summary>Returns the opaque parameter set by av_buffer_create.</summary> | ||
| public IntPtr Opaque => (IntPtr)av_buffer_get_opaque(this); | ||
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| public int RefCount => av_buffer_get_ref_count(this); | ||
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| /// <summary>Free a given reference and automatically free the buffer if there are no more references to it.</summary> | ||
| public void Unref() | ||
| { | ||
| AVBufferRef* ptr = this; | ||
| av_buffer_unref(&ptr); | ||
| handle = (IntPtr)ptr; | ||
| } | ||
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| /// <summary>Create a writable reference from a given buffer reference, avoiding data copy if possible.</summary> | ||
| public void MakeWritable() | ||
| { | ||
| AVBufferRef* ptr = this; | ||
| av_buffer_make_writable(&ptr).ThrowIfError(); | ||
| handle = (IntPtr)ptr; | ||
| } | ||
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| /// <summary>Reallocate a given buffer.</summary> | ||
| /// <param name="size">required new buffer size.</param> | ||
| public void Realloc(int size) | ||
| { | ||
| AVBufferRef* ptr = this; | ||
| av_buffer_realloc(&ptr, (ulong)size).ThrowIfError(); | ||
| handle = (IntPtr)ptr; | ||
| } | ||
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| /// <summary>Ensure dst refers to the same data as src.</summary> | ||
| /// <param name="src">Pointer to either a valid buffer reference or NULL. On success, this will point to a buffer reference equivalent to src. On failure, dst will be left untouched.</param> | ||
| public void Replace(BufferRef src) | ||
| { | ||
| AVBufferRef* ptr = this; | ||
| av_buffer_replace(&ptr, src).ThrowIfError(); | ||
| handle = (IntPtr)ptr; | ||
| } | ||
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| protected override bool ReleaseHandle() | ||
| { | ||
| Unref(); | ||
| return true; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| // This file was genereated from Sdcb.FFmpeg.AutoGen, DO NOT CHANGE DIRECTLY. | ||
| #nullable enable | ||
| using Sdcb.FFmpeg.Common; | ||
| using Sdcb.FFmpeg.Codecs; | ||
| using Sdcb.FFmpeg.Formats; | ||
| using Sdcb.FFmpeg.Raw; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Runtime.InteropServices; | ||
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| namespace Sdcb.FFmpeg.Utils; | ||
|
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| /// <summary> | ||
| /// <para>A reference to a data buffer.</para> | ||
| /// <see cref="AVBufferRef" /> | ||
| /// </summary> | ||
| public unsafe partial class BufferRef : SafeHandle | ||
| { | ||
| protected AVBufferRef* _ptr => (AVBufferRef*)handle; | ||
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| public static implicit operator AVBufferRef*(BufferRef data) => data != null ? (AVBufferRef*)data.handle : null; | ||
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| protected BufferRef(AVBufferRef* ptr, bool isOwner): base(NativeUtils.NotNull((IntPtr)ptr), isOwner) | ||
| { | ||
| } | ||
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| public static BufferRef FromNative(AVBufferRef* ptr, bool isOwner) => new BufferRef(ptr, isOwner); | ||
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| public static BufferRef? FromNativeOrNull(AVBufferRef* ptr, bool isOwner) => ptr == null ? null : new BufferRef(ptr, isOwner); | ||
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| public override bool IsInvalid => handle == IntPtr.Zero; | ||
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| /// <summary> | ||
| /// <para>original type: AVBuffer*</para> | ||
| /// <see cref="AVBufferRef.buffer" /> | ||
| /// </summary> | ||
| public IntPtr Buffer | ||
| { | ||
| get => (IntPtr)_ptr->buffer; | ||
| set => _ptr->buffer = (AVBuffer*)value; | ||
| } | ||
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| /// <summary> | ||
| /// <para>original type: byte*</para> | ||
| /// <para>The data buffer. It is considered writable if and only if this is the only reference to the buffer, in which case av_buffer_is_writable() returns 1.</para> | ||
| /// <see cref="AVBufferRef.data" /> | ||
| /// </summary> | ||
| public DataPointer Data => new DataPointer(_ptr->data, (int)_ptr->size)!; | ||
|
|
||
| } |
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