diff options
Diffstat (limited to 'src/lib/ffmpeg-2.1/libavutil')
| -rw-r--r-- | src/lib/ffmpeg-2.1/libavutil/buffer.pas | 423 | ||||
| -rw-r--r-- | src/lib/ffmpeg-2.1/libavutil/frame.pas | 570 |
2 files changed, 495 insertions, 498 deletions
diff --git a/src/lib/ffmpeg-2.1/libavutil/buffer.pas b/src/lib/ffmpeg-2.1/libavutil/buffer.pas index e4f40fc9..6eead1dc 100644 --- a/src/lib/ffmpeg-2.1/libavutil/buffer.pas +++ b/src/lib/ffmpeg-2.1/libavutil/buffer.pas @@ -28,59 +28,65 @@ *) const - (** - * Always treat the buffer as read-only, even when it has only one - * reference. - *) +(** + * Always treat the buffer as read-only, even when it has only one + * reference. + *) AV_BUFFER_FLAG_READONLY = (1 << 0); type - (** - * @defgroup lavu_buffer AVBuffer - * @ingroup lavu_data - * - * @{ - * AVBuffer is an API for reference-counted data buffers. - * - * There are two core objects in this API -- AVBuffer and AVBufferRef. AVBuffer - * represents the data buffer itself; it is opaque and not meant to be accessed - * by the caller directly, but only through AVBufferRef. However, the caller may - * e.g. compare two AVBuffer pointers to check whether two different references - * are describing the same data buffer. AVBufferRef represents a single - * reference to an AVBuffer and it is the object that may be manipulated by the - * caller directly. - * - * There are two functions provided for creating a new AVBuffer with a single - * reference -- av_buffer_alloc() to just allocate a new buffer, and - * av_buffer_create() to wrap an existing array in an AVBuffer. From an existing - * reference, additional references may be created with av_buffer_ref(). - * Use av_buffer_unref() to free a reference (this will automatically free the - * data once all the references are freed). - * - * The convention throughout this API and the rest of FFmpeg is such that the - * buffer is considered writable if there exists only one reference to it (and - * it has not been marked as read-only). The av_buffer_is_writable() function is - * provided to check whether this is true and av_buffer_make_writable() will - * automatically create a new writable buffer when necessary. - * Of course nothing prevents the calling code from violating this convention, - * however that is safe only when all the existing references are under its - * control. - * - * @note Referencing and unreferencing the buffers is thread-safe and thus - * may be done from multiple threads simultaneously without any need for - * additional locking. - * - * @note Two different references to the same buffer can point to different - * parts of the buffer (i.e. their AVBufferRef.data will not be equal). - *) +(** + * @defgroup lavu_buffer AVBuffer + * @ingroup lavu_data + * + * @ + * AVBuffer is an API for reference-counted data buffers. + * + * There are two core objects in this API -- AVBuffer and AVBufferRef. AVBuffer + * represents the data buffer itself; it is opaque and not meant to be accessed + * by the caller directly, but only through AVBufferRef. However, the caller may + * e.g. compare two AVBuffer pointers to check whether two different references + * are describing the same data buffer. AVBufferRef represents a single + * reference to an AVBuffer and it is the object that may be manipulated by the + * caller directly. + * + * There are two functions provided for creating a new AVBuffer with a single + * reference -- av_buffer_alloc() to just allocate a new buffer, and + * av_buffer_create() to wrap an existing array in an AVBuffer. From an existing + * reference, additional references may be created with av_buffer_ref(). + * Use av_buffer_unref() to free a reference (this will automatically free the + * data once all the references are freed). + * + * The convention throughout this API and the rest of FFmpeg is such that the + * buffer is considered writable if there exists only one reference to it (and + * it has not been marked as read-only). The av_buffer_is_writable() function is + * provided to check whether this is true and av_buffer_make_writable() will + * automatically create a new writable buffer when necessary. + * Of course nothing prevents the calling code from violating this convention, + * however that is safe only when all the existing references are under its + * control. + * + * @note Referencing and unreferencing the buffers is thread-safe and thus + * may be done from multiple threads simultaneously without any need for + * additional locking. + * + * @note Two different references to the same buffer can point to different + * parts of the buffer (i.e. their AVBufferRef.data will not be equal). + *) - (** - * A reference counted buffer type. It is opaque and is meant to be used through - * references (AVBufferRef). - *) +(** + * A reference counted buffer type. It is opaque and is meant to be used through + * references (AVBufferRef). + *) TAVBuffer = record end; +(** + * A reference to a data buffer. + * + * The size of this struct is not a part of the public ABI and it is not meant + * to be allocated directly. + *) PPAVBufferRef = ^PAVBufferRef; PAVBufferRef = ^TAVBufferRef; TAVBufferRef = record @@ -89,11 +95,11 @@ type * 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. - *) - data: PByte; + *) + data: PByte; (** * Size of data in bytes. - *) + *) size: cint; end; @@ -101,186 +107,177 @@ type TFree = procedure(opaque: pointer; data: pbyte); TAlloc = function(size: cint): PAVBufferRef; - (** - * The buffer pool. This structure is opaque and not meant to be accessed - * directly. It is allocated with av_buffer_pool_init() and freed with - * av_buffer_pool_uninit(). - *) +(** + * The buffer pool. This structure is opaque and not meant to be accessed + * directly. It is allocated with av_buffer_pool_init() and freed with + * av_buffer_pool_uninit(). + *) PPAVBufferPool = ^PAVBufferPool; PAVBufferPool = ^TAVBufferPool; TAVBufferPool = record end; +(** + * Allocate an AVBuffer of the given size using av_malloc(). + * + * @return an AVBufferRef of given size or NULL when out of memory + *) +function av_buffer_alloc(size: cint): PAVBufferRef; + cdecl; external av__util; - (** - * Allocate an AVBuffer of the given size using av_malloc(). - * - * @return an AVBufferRef of given size or NULL when out of memory - *) - function av_buffer_alloc(size: cint): PAVBufferRef; - cdecl; external av__util; - - (** - * Create an AVBuffer from an existing array. - * - * If this function is successful, data is owned by the AVBuffer. The caller may - * only access data through the returned AVBufferRef and references derived from - * it. - * If this function fails, data is left untouched. - * @param data data array - * @param size size of data in bytes - * @param free a callback for freeing this buffer's data - * @param opaque parameter to be got for processing or passed to free - * @param flags a combination of AV_BUFFER_FLAG_* - * - * @return an AVBufferRef referring to data on success, NULL on failure. - *) - - function av_buffer_create(data: PByte; size: cint; - free: TFree; - opaque: pointer; flags: cint): PAVBufferRef; - cdecl; external av__util; - - (** - * Default free callback, which calls av_free() on the buffer data. - * This function is meant to be passed to av_buffer_create(), not called - * directly. - *) - procedure av_buffer_default_free(opaque: pointer; data: pbyte); - cdecl; external av__util; +(** + * Create an AVBuffer from an existing array. + * + * If this function is successful, data is owned by the AVBuffer. The caller may + * only access data through the returned AVBufferRef and references derived from + * it. + * If this function fails, data is left untouched. + * @param data data array + * @param size size of data in bytes + * @param free a callback for freeing this buffer's data + * @param opaque parameter to be got for processing or passed to free + * @param flags a combination of AV_BUFFER_FLAG_* + * + * @return an AVBufferRef referring to data on success, NULL on failure. + *) - (** - * Create a new reference to an AVBuffer. - * - * @return a new AVBufferRef referring to the same AVBuffer as buf or NULL on - * failure. - *) - function av_buffer_ref(buf: PAVBufferRef): PAVBufferRef; - cdecl; external av__util; +function av_buffer_create(data: PByte; size: cint; + free: TFree; + opaque: pointer; flags: cint): PAVBufferRef; + cdecl; external av__util; - (** - * Free a given reference and automatically free the buffer if there are no more - * references to it. - * - * @param buf the reference to be freed. The pointer is set to NULL on return. - *) - procedure av_buffer_unref(buf: PPAVBufferRef); - cdecl; external av__util; +(** + * Default free callback, which calls av_free() on the buffer data. + * This function is meant to be passed to av_buffer_create(), not called + * directly. + *) +procedure av_buffer_default_free(opaque: pointer; data: pbyte); + cdecl; external av__util; - (** - * @return 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. - *) - function av_buffer_is_writable(buf: {const} PAVBufferRef): cint; - cdecl; external av__util; +(** + * Create a new reference to an AVBuffer. + * + * @return a new AVBufferRef referring to the same AVBuffer as buf or NULL on + * failure. + *) +function av_buffer_ref(buf: PAVBufferRef): PAVBufferRef; + cdecl; external av__util; - (** - * @return the opaque parameter set by av_buffer_create. - *) - procedure av_buffer_get_opaque(buf: {const} PAVBufferRef); - cdecl; external av__util; +(** + * Free a given reference and automatically free the buffer if there are no more + * references to it. + * + * @param buf the reference to be freed. The pointer is set to NULL on return. + *) +procedure av_buffer_unref(buf: PPAVBufferRef); + cdecl; external av__util; - function av_buffer_get_ref_count(buf: {const} PAVBufferRef): cint; - cdecl; external av__util; +(** + * @return 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. + *) +function av_buffer_is_writable(buf: {const} PAVBufferRef): cint; + cdecl; external av__util; - (** - * Create a writable reference from a given buffer reference, avoiding data copy - * if possible. - * - * @param buf buffer reference to make writable. On success, buf is either left - * untouched, or it is unreferenced and a new writable AVBufferRef is - * written in its place. On failure, buf is left untouched. - * @return 0 on success, a negative AVERROR on failure. - *) - function av_buffer_make_writable(buf: PPAVBufferRef): cint; - cdecl; external av__util; +(** + * @return the opaque parameter set by av_buffer_create. + *) +procedure av_buffer_get_opaque(buf: {const} PAVBufferRef); + cdecl; external av__util; - (** - * Reallocate a given buffer. - * - * @param buf a buffer reference to reallocate. On success, buf will be - * unreferenced and a new reference with the required size will be - * written in its place. On failure buf will be left untouched. *buf - * may be NULL, then a new buffer is allocated. - * @param size required new buffer size. - * @return 0 on success, a negative AVERROR on failure. - * - * @note the buffer is actually reallocated with av_realloc() only if it was - * initially allocated through av_buffer_realloc(NULL) and there is only one - * reference to it (i.e. the one passed to this function). In all other cases - * a new buffer is allocated and the data is copied. - *) - function av_buffer_realloc(buf: PPAVBufferRef; size: cint): cint; - cdecl; external av__util; +function av_buffer_get_ref_count(buf: {const} PAVBufferRef): cint; + cdecl; external av__util; - (** - * @} - *) +(** + * Create a writable reference from a given buffer reference, avoiding data copy + * if possible. + * + * @param buf buffer reference to make writable. On success, buf is either left + * untouched, or it is unreferenced and a new writable AVBufferRef is + * written in its place. On failure, buf is left untouched. + * @return 0 on success, a negative AVERROR on failure. + *) +function av_buffer_make_writable(buf: PPAVBufferRef): cint; + cdecl; external av__util; - (** - * @defgroup lavu_bufferpool AVBufferPool - * @ingroup lavu_data - * - * @{ - * AVBufferPool is an API for a lock-free thread-safe pool of AVBuffers. - * - * Frequently allocating and freeing large buffers may be slow. AVBufferPool is - * meant to solve this in cases when the caller needs a set of buffers of the - * same size (the most obvious use case being buffers for raw video or audio - * frames). - * - * At the beginning, the user must call av_buffer_pool_init() to create the - * buffer pool. Then whenever a buffer is needed, call av_buffer_pool_get() to - * get a reference to a new buffer, similar to av_buffer_alloc(). This new - * reference works in all aspects the same way as the one created by - * av_buffer_alloc(). However, when the last reference to this buffer is - * unreferenced, it is returned to the pool instead of being freed and will be - * reused for subsequent av_buffer_pool_get() calls. - * - * When the caller is done with the pool and no longer needs to allocate any new - * buffers, av_buffer_pool_uninit() must be called to mark the pool as freeable. - * Once all the buffers are released, it will automatically be freed. - * - * Allocating and releasing buffers with this API is thread-safe as long as - * either the default alloc callback is used, or the user-supplied one is - * thread-safe. - *) +(** + * Reallocate a given buffer. + * + * @param buf a buffer reference to reallocate. On success, buf will be + * unreferenced and a new reference with the required size will be + * written in its place. On failure buf will be left untouched. *buf + * may be NULL, then a new buffer is allocated. + * @param size required new buffer size. + * @return 0 on success, a negative AVERROR on failure. + * + * @note the buffer is actually reallocated with av_realloc() only if it was + * initially allocated through av_buffer_realloc(NULL) and there is only one + * reference to it (i.e. the one passed to this function). In all other cases + * a new buffer is allocated and the data is copied. + *) +function av_buffer_realloc(buf: PPAVBufferRef; size: cint): cint; + cdecl; external av__util; - (** - * Allocate and initialize a buffer pool. - * - * @param size size of each buffer in this pool - * @param alloc a function that will be used to allocate new buffers when the - * pool is empty. May be NULL, then the default allocator will be used - * (av_buffer_alloc()). - * @return newly created buffer pool on success, NULL on error. - *) - function av_buffer_pool_init(size: cint; alloc: TAlloc): PAVBufferRef; - cdecl; external av__util; +(** + * @defgroup lavu_bufferpool AVBufferPool + * @ingroup lavu_data + * + * @ + * AVBufferPool is an API for a lock-free thread-safe pool of AVBuffers. + * + * Frequently allocating and freeing large buffers may be slow. AVBufferPool is + * meant to solve this in cases when the caller needs a set of buffers of the + * same size (the most obvious use case being buffers for raw video or audio + * frames). + * + * At the beginning, the user must call av_buffer_pool_init() to create the + * buffer pool. Then whenever a buffer is needed, call av_buffer_pool_get() to + * get a reference to a new buffer, similar to av_buffer_alloc(). This new + * reference works in all aspects the same way as the one created by + * av_buffer_alloc(). However, when the last reference to this buffer is + * unreferenced, it is returned to the pool instead of being freed and will be + * reused for subsequent av_buffer_pool_get() calls. + * + * When the caller is done with the pool and no longer needs to allocate any new + * buffers, av_buffer_pool_uninit() must be called to mark the pool as freeable. + * Once all the buffers are released, it will automatically be freed. + * + * Allocating and releasing buffers with this API is thread-safe as long as + * either the default alloc callback is used, or the user-supplied one is + * thread-safe. + *) - (** - * Mark the pool as being available for freeing. It will actually be freed only - * once all the allocated buffers associated with the pool are released. Thus it - * is safe to call this function while some of the allocated buffers are still - * in use. - * - * @param pool pointer to the pool to be freed. It will be set to NULL. - * @see av_buffer_pool_can_uninit() - *) - procedure av_buffer_pool_uninit(pool: PPAVBufferPool); - cdecl; external av__util; +(** + * Allocate and initialize a buffer pool. + * + * @param size size of each buffer in this pool + * @param alloc a function that will be used to allocate new buffers when the + * pool is empty. May be NULL, then the default allocator will be used + * (av_buffer_alloc()). + * @return newly created buffer pool on success, NULL on error. + *) +function av_buffer_pool_init(size: cint; alloc: TAlloc): PAVBufferRef; + cdecl; external av__util; - (** - * Allocate a new AVBuffer, reusing an old buffer from the pool when available. - * This function may be called simultaneously from multiple threads. - * - * @return a reference to the new buffer on success, NULL on error. - *) - function av_buffer_pool_get(pool: PAVBufferPool): PAVBufferRef; - cdecl; external av__util; +(** + * Mark the pool as being available for freeing. It will actually be freed only + * once all the allocated buffers associated with the pool are released. Thus it + * is safe to call this function while some of the allocated buffers are still + * in use. + * + * @param pool pointer to the pool to be freed. It will be set to NULL. + * @see av_buffer_pool_can_uninit() + *) +procedure av_buffer_pool_uninit(pool: PPAVBufferPool); + cdecl; external av__util; - (** - * @{ - *) +(** + * Allocate a new AVBuffer, reusing an old buffer from the pool when available. + * This function may be called simultaneously from multiple threads. + * + * @return a reference to the new buffer on success, NULL on error. + *) +function av_buffer_pool_get(pool: PAVBufferPool): PAVBufferRef; + cdecl; external av__util; diff --git a/src/lib/ffmpeg-2.1/libavutil/frame.pas b/src/lib/ffmpeg-2.1/libavutil/frame.pas index 4a7150cf..725ebce1 100644 --- a/src/lib/ffmpeg-2.1/libavutil/frame.pas +++ b/src/lib/ffmpeg-2.1/libavutil/frame.pas @@ -57,7 +57,7 @@ type TAVFrameSideDataType = ( (** * The data is the AVPanScan struct defined in libavcodec. - *) + *) AV_FRAME_DATA_PANSCAN ); @@ -69,35 +69,35 @@ type metadata: TAVDictionary; end; {TAVFrameSideData} - (** - * This structure describes decoded (raw) audio or video data. - * - * AVFrame must be allocated using av_frame_alloc(). Note that this only - * allocates the AVFrame itself, the buffers for the data must be managed - * through other means (see below). - * AVFrame must be freed with av_frame_free(). - * - * AVFrame is typically allocated once and then reused multiple times to hold - * different data (e.g. a single AVFrame to hold frames received from a - * decoder). In such a case, av_frame_unref() will free any references held by - * the frame and reset it to its original clean state before it - * is reused again. - * - * The data described by an AVFrame is usually reference counted through the - * AVBuffer API. The underlying buffer references are stored in AVFrame.buf / - * AVFrame.extended_buf. An AVFrame is considered to be reference counted if at - * least one reference is set, i.e. if AVFrame.buf[0] != NULL. In such a case, - * every single data plane must be contained in one of the buffers in - * AVFrame.buf or AVFrame.extended_buf. - * There may be a single buffer for all the data, or one separate buffer for - * each plane, or anything in between. - * - * sizeof(AVFrame) is not a part of the public ABI, so new fields may be added - * to the end with a minor bump. - * Similarly fields that are marked as to be only accessed by - * av_opt_ptr() can be reordered. This allows 2 forks to add fields - * without breaking compatibility with each other. - *) +(** + * This structure describes decoded (raw) audio or video data. + * + * AVFrame must be allocated using av_frame_alloc(). Note that this only + * allocates the AVFrame itself, the buffers for the data must be managed + * through other means (see below). + * AVFrame must be freed with av_frame_free(). + * + * AVFrame is typically allocated once and then reused multiple times to hold + * different data (e.g. a single AVFrame to hold frames received from a + * decoder). In such a case, av_frame_unref() will free any references held by + * the frame and reset it to its original clean state before it + * is reused again. + * + * The data described by an AVFrame is usually reference counted through the + * AVBuffer API. The underlying buffer references are stored in AVFrame.buf / + * AVFrame.extended_buf. An AVFrame is considered to be reference counted if at + * least one reference is set, i.e. if AVFrame.buf[0] != NULL. In such a case, + * every single data plane must be contained in one of the buffers in + * AVFrame.buf or AVFrame.extended_buf. + * There may be a single buffer for all the data, or one separate buffer for + * each plane, or anything in between. + * + * sizeof(AVFrame) is not a part of the public ABI, so new fields may be added + * to the end with a minor bump. + * Similarly fields that are marked as to be only accessed by + * av_opt_ptr() can be reordered. This allows 2 forks to add fields + * without breaking compatibility with each other. +*) PPAVFrame = ^PAVFrame; PAVFrame = ^TAVFrame; TAVFrame = record @@ -109,7 +109,7 @@ type * see avcodec_align_dimensions2(). Some filters and swscale can read * up to 16 bytes beyond the planes, if these filters are to be used, * then 16 extra bytes must be allocated. - *) + *) data: array [0..AV_NUM_DATA_POINTERS - 1] of pbyte; (** @@ -126,7 +126,7 @@ type * * @note The linesize may be larger than the size of usable data -- there * may be extra padding present for performance reasons. - *) + *) linesize: array [0..AV_NUM_DATA_POINTERS - 1] of cint; (** @@ -146,7 +146,7 @@ type * * encoding: set by user * decoding: set by AVCodecContext.get_buffer() - *) + *) extended_data: ^pbyte; (** @@ -159,7 +159,7 @@ type * number of audio samples (per channel) described by this frame * - encoding: Set by user * - decoding: Set by libavcodec - *) + *) nb_samples: cint; (** @@ -168,21 +168,21 @@ type * enum AVSampleFormat for audio) * - encoding: unused * - decoding: Read by user. - *) + *) format: cint; (** * 1 -> keyframe, 0-> not * - encoding: Set by libavcodec. * - decoding: Set by libavcodec. - *) + *) key_frame: cint; (** * Picture type of the frame * - encoding: Set by libavcodec. for coded_picture (and set by user for input). * - decoding: Set by libavcodec. - *) + *) pict_type: TAVPictureType; {$IFDEF FF_API_AVFRAME_LAVC} @@ -191,7 +191,7 @@ type * This isn't used by libavcodec unless the default get/release_buffer() is used. * - encoding: * - decoding: - *) + *) base: array [0..AV_NUM_DATA_POINTERS - 1] of pbyte; {deprecated} {$ENDIF} @@ -199,7 +199,7 @@ type * sample aspect ratio for the video frame, 0/1 if unknown/unspecified * - encoding: unused * - decoding: Read by user. - *) + *) sample_aspect_ratio: TAVRational; (** @@ -207,42 +207,42 @@ type * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed. * - encoding: MUST be set by user. * - decoding: Set by libavcodec. - *) + *) pts: cint64; (** * pts copied from the AVPacket that was decoded to produce this frame * - encoding: unused * - decoding: Read by user. - *) + *) pkt_pts: cint64; (** * dts copied from the AVPacket that triggered returning this frame * - encoding: unused * - decoding: Read by user. - *) + *) pkt_dts: cint64; (** * picture number in bitstream order * - encoding: set by * - decoding: Set by libavcodec. - *) + *) coded_picture_number: cint; (** * picture number in display order * - encoding: set by * - decoding: Set by libavcodec. - *) + *) display_picture_number: cint; (** * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) * - encoding: Set by libavcodec. for coded_picture (and set by user for input). * - decoding: Set by libavcodec. - *) + *) quality: cint; {$IFDEF FF_API_AVFRAME_LAVC} @@ -250,19 +250,19 @@ type (** * QP table - *) + *) qscale_table: pbyte; {deprecated} (** * QP store stride - *) + *) qstride: cint; {deprecated} qscale_type: cint; {deprecated} (** * mbskip_table[mb]>=1 if MB didn't change * stride= mb_width = (width+15)>>4 - *) + *) mbskip_table: pbyte; {deprecated} (** @@ -274,24 +274,24 @@ type * int mv_stride= (mb_width << mv_sample_log2) + 1; * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y]; * @endcode - *) + *) motion_val: array [0..1] of pointer; {deprecated} (** * macroblock type table * mb_type_base + mb_width + 2 - *) + *) mb_type: PCuint; {deprecated} (** * DCT coefficients - *) + *) dct_coeff: PsmallInt; {deprecated} (** * motion reference frame index * the order in which these are stored can depend on the codec. - *) + *) ref_index: array [0..1] of pbyte; {deprecated} {$ENDIF} @@ -299,14 +299,14 @@ type * for some private data of the user * - encoding: unused * - decoding: Set by user. - *) + *) opaque: pointer; (** * error * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR. * - decoding: unused - *) + *) error: array [0..AV_NUM_DATA_POINTERS - 1] of cuint64; {$IFDEF FF_API_AVFRAME_LAVC} @@ -318,35 +318,35 @@ type * extra_delay = repeat_pict / (2*fps) * - encoding: unused * - decoding: Set by libavcodec. - *) + *) repeat_pict: cint; (** * The content of the picture is interlaced. * - encoding: Set by user. * - decoding: Set by libavcodec. (default 0) - *) + *) interlaced_frame: cint; (** * If the content is interlaced, is top field displayed first. * - encoding: Set by user. * - decoding: Set by libavcodec. - *) + *) top_field_first: cint; (** * Tell user application that palette has changed from previous frame. * - encoding: ??? (no palette-enabled encoder yet) * - decoding: Set by libavcodec. (default 0). - *) + *) palette_has_changed: cint; {$IFDEF FF_API_AVFRAME_LAVC} buffer_hints: cint; {deprecated} (** * Pan scan. - *) + *) pan_scan: PAVPanScan; {deprecated} {$ENDIF} @@ -360,13 +360,13 @@ type * @deprecated in favor of pkt_pts * - encoding: unused * - decoding: Read by user. - *) + *) reordered_opaque: cint64; {$IFDEF FF_API_AVFRAME_LAVC} (** * @deprecated this field is unused - *) + *) hwaccel_picture_private: pointer; {deprecated} owner: PAVCodecContext; {deprecated} thread_opaque: pointer; {deprecated} @@ -374,7 +374,7 @@ type (** * log2 of the size of the block which a single vector in motion_val represents: * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2) - *) + *) motion_subsample_log2: cuint8; {deprecated} {$ENDIF} @@ -403,7 +403,7 @@ type * AV_NUM_DATA_POINTERS channels, there may be more buffers than can fit in * this array. Then the extra AVBufferRef pointers are stored in the * extended_buf array. - *) + *) buf: array [0..AV_NUM_DATA_POINTERS - 1] of PAVBufferRef; (** @@ -417,7 +417,7 @@ type * * This array is always allocated using av_malloc() by whoever constructs * the frame. It is freed in av_frame_unref(). - *) + *) extended_buf: PPAVBufferRef; (** @@ -434,7 +434,7 @@ type * av_frame_get_best_effort_timestamp(frame) * - encoding: unused * - decoding: set by libavcodec, read by user. - *) + *) best_effort_timestamp: cint64; (** @@ -443,7 +443,7 @@ type * av_frame_get_pkt_pos(frame) * - encoding: unused * - decoding: Read by user. - *) + *) pkt_pos: cint64; (** @@ -453,7 +453,7 @@ type * av_frame_get_pkt_duration(frame) * - encoding: unused * - decoding: Read by user. - *) + *) pkt_duration: cint64; (** @@ -462,7 +462,7 @@ type * av_frame_get_metadata(frame) * - encoding: Set by user. * - decoding: Set by libavcodec. - *) + *) metadata: PAVDictionary; (** @@ -473,7 +473,7 @@ type * av_frame_get_decode_error_flags(frame) * - encoding: unused * - decoding: set by libavcodec, read by user. - *) + *) decode_error_flags: cint; (** @@ -482,7 +482,7 @@ type * av_frame_get_channels(frame) * - encoding: unused * - decoding: Read by user. - *) + *) channels: cint; (** @@ -492,7 +492,7 @@ type * It is set to a negative value if unknown. * - encoding: unused * - decoding: set by libavcodec, read by user. - *) + *) pkt_size: cint; (** @@ -501,7 +501,7 @@ type * av_frame_set_colorspace(). * - encoding: Set by user * - decoding: Set by libavcodec - *) + *) colorspace: TAVColorSpace; (** @@ -510,224 +510,224 @@ type * av_frame_set_color_range(). * - encoding: Set by user * - decoding: Set by libavcodec - *) + *) color_range: TAVColorRange; (** * Not to be accessed directly from outside libavutil - *) + *) qp_table_buf: PAVBufferRef; end; {TAVFrame} - (** - * Accessors for some AVFrame fields. - * The position of these field in the structure is not part of the ABI, - * they should not be accessed directly outside libavcodec. - *) - function av_frame_get_best_effort_timestamp(frame: {const} PAVFrame): cint64; - cdecl; external av__codec; overload; - procedure av_frame_set_best_effort_timestamp(frame: PAVFrame; val: cint64); - cdecl; external av__codec; overload; - function av_frame_get_pkt_duration (frame: {const} PAVFrame): cint64; - cdecl; external av__codec; overload; - procedure av_frame_get_pkt_duration (frame: PAVFrame; val: cint64); - cdecl; external av__codec; overload; - function av_frame_get_pkt_pos (frame: {const} PAVFrame): cint64; - cdecl; external av__codec; overload; - procedure av_frame_get_pkt_pos (frame: PAVFrame; val: cint64); - cdecl; external av__codec; overload; - function av_frame_get_channel_layout (frame: {const} PAVFrame): cint64; - cdecl; external av__codec; overload; - procedure av_frame_get_channel_layout (frame: PAVFrame; val: cint64); - cdecl; external av__codec; overload; - function av_frame_get_channels (frame: {const} PAVFrame): cint; - cdecl; external av__codec; - procedure av_frame_set_channels (frame: PAVFrame; val: cint); - cdecl; external av__codec; - function av_frame_get_sample_rate (frame: {const} PAVFrame): cint; - cdecl; external av__codec; - procedure av_frame_set_sample_rate (frame: PAVFrame; val: cint); - cdecl; external av__codec; - function av_frame_get_metadata (frame: {const} PAVFrame): PAVDictionary; - cdecl; external av__codec; - procedure av_frame_set_metadata (frame: PAVFrame; val: PAVDictionary); - cdecl; external av__codec; - function av_frame_get_decode_error_flags (frame: {const} PAVFrame): cint; - cdecl; external av__codec; - procedure av_frame_set_decode_error_flags (frame: PAVFrame; val: cint); - cdecl; external av__codec; - function av_frame_get_pkt_size (frame: {const} PAVFrame): cint; - cdecl; external av__codec; - procedure av_frame_set_pkt_size (frame: PAVFrame; val: cint); - cdecl; external av__codec; - function avpriv_frame_get_metadatap(frame: PAVFrame): PPAVDictionary; - cdecl; external av__codec; - function av_frame_get_qp_table(f: PAVFrame; stride: pcint; type_: pcint): PByte; - cdecl; external av__codec; - function av_frame_set_qp_table(f: PAVFrame; buf: PAVBufferRef; stride: cint; type_: cint): cint; - cdecl; external av__codec; - function av_frame_get_colorspace(frame: {const} PAVFrame): TAVColorSpace; - cdecl; external av__codec; - procedure av_frame_set_colorspace(frame: PAVFrame; val: TAVColorSpace); - cdecl; external av__codec; - procedure av_frame_set_color_range(frame: PAVFrame; val: TAVColorSpace); - cdecl; external av__codec; - - (** - * Get the name of a colorspace. - * @return a static string identifying the colorspace; can be NULL. - *) - function av_get_colorspace_name(val: TAVColorSpace): PAnsiChar; - cdecl; external av__codec; - - (** - * Allocate an AVFrame and set its fields to default values. The resulting - * struct must be freed using av_frame_free(). - * - * @return An AVFrame filled with default values or NULL on failure. - * - * @note this only allocates the AVFrame itself, not the data buffers. Those - * must be allocated through other means, e.g. with av_frame_get_buffer() or - * manually. - *) - function av_frame_alloc(): PAVFrame; - cdecl; external av__codec; - - (** - * Free the frame and any dynamically allocated objects in it, - * e.g. extended_data. If the frame is reference counted, it will be - * unreferenced first. - * - * @param frame frame to be freed. The pointer will be set to NULL. - *) - procedure av_frame_free(frame: PPAVFrame); - cdecl; external av__codec; - - (** - * Setup a new reference to the data described by a given frame. - * - * Copy frame properties from src to dst and create a new reference for each - * AVBufferRef from src. - * - * If src is not reference counted, new buffers are allocated and the data is - * copied. - * - * @return 0 on success, a negative AVERROR on error - *) - function av_frame_ref(dst: PAVFrame; src: PAVFrame): cint; - cdecl; external av__codec; - - (** - * Create a new frame that references the same data as src. - * - * This is a shortcut for av_frame_alloc()+av_frame_ref(). - * - * @return newly created AVFrame on success, NULL on error. - *) - function av_frame_clone(src: PAVFrame): PAVFrame; - cdecl; external av__codec; - - (** - * Unreference all the buffers referenced by frame and reset the frame fields. - *) - procedure av_frame_unref(frame: PAVFrame); - cdecl; external av__codec; - - (** - * Move everythnig contained in src to dst and reset src. - *) - procedure av_frame_move_ref(dst, src: PAVFrame); - cdecl; external av__codec; - - (** - * Allocate new buffer(s) for audio or video data. - * - * The following fields must be set on frame before calling this function: - * - format (pixel format for video, sample format for audio) - * - width and height for video - * - nb_samples and channel_layout for audio - * - * This function will fill AVFrame.data and AVFrame.buf arrays and, if - * necessary, allocate and fill AVFrame.extended_data and AVFrame.extended_buf. - * For planar formats, one buffer will be allocated for each plane. - * - * @param frame frame in which to store the new buffers. - * @param align required buffer size alignment - * - * @return 0 on success, a negative AVERROR on error. - *) - function av_frame_get_buffer(frame: PAVFrame; align: cint): cint; - cdecl; external av__codec; - - (** - * Check if the frame data is writable. - * - * @return A positive value if the frame data is writable (which is true if and - * only if each of the underlying buffers has only one reference, namely the one - * stored in this frame). Return 0 otherwise. - * - * If 1 is returned the answer is valid until av_buffer_ref() is called on any - * of the underlying AVBufferRefs (e.g. through av_frame_ref() or directly). - * - * @see av_frame_make_writable(), av_buffer_is_writable() - *) - function av_frame_is_writable(frame: PAVFrame): cint; - cdecl; external av__codec; - - (** - * Ensure that the frame data is writable, avoiding data copy if possible. - * - * Do nothing if the frame is writable, allocate new buffers and copy the data - * if it is not. - * - * @return 0 on success, a negative AVERROR on error. - * - * @see av_frame_is_writable(), av_buffer_is_writable(), - * av_buffer_make_writable() - *) - function av_frame_make_writable(frame: PAVFrame): cint; - cdecl; external av__codec; - - (** - * Copy only "metadata" fields from src to dst. - * - * Metadata for the purpose of this function are those fields that do not affect - * the data layout in the buffers. E.g. pts, sample rate (for audio) or sample - * aspect ratio (for video), but not width/height or channel layout. - * Side data is also copied. - *) - function av_frame_copy_props(dst: PAVFrame; src: {const} PAVFrame): cint; - cdecl; external av__codec; - - (** - * Get the buffer reference a given data plane is stored in. - * - * @param plane index of the data plane of interest in frame->extended_data. - * - * @return the buffer reference that contains the plane or NULL if the input - * frame is not valid. - *) - function av_frame_get_plane_buffer(frame: PAVFrame; plane: cint): PAVBufferRef; - cdecl; external av__codec; - - (** - * Add a new side data to a frame. - * - * @param frame a frame to which the side data should be added - * @param type type of the added side data - * @param size size of the side data - * - * @return newly added side data on success, NULL on error - *) - function av_frame_new_side_data(frame: PAVFrame; - type_: TAVFrameSideDataType; - size: cint): PAVFrameSideData; - cdecl; external av__codec; - - (** - * @return a pointer to the side data of a given type on success, NULL if there - * is no side data with such type in this frame. - *) - function av_frame_get_side_data(frame: {const} PAVFrame; type_: TAVFrameSideDataType): PAVFrameSideData; - cdecl; external av__codec; +(** + * Accessors for some AVFrame fields. + * The position of these field in the structure is not part of the ABI, + * they should not be accessed directly outside libavcodec. + *) +function av_frame_get_best_effort_timestamp(frame: {const} PAVFrame): cint64; + cdecl; external av__codec; overload; +procedure av_frame_set_best_effort_timestamp(frame: PAVFrame; val: cint64); + cdecl; external av__codec; overload; +function av_frame_get_pkt_duration (frame: {const} PAVFrame): cint64; + cdecl; external av__codec; overload; +procedure av_frame_get_pkt_duration (frame: PAVFrame; val: cint64); + cdecl; external av__codec; overload; +function av_frame_get_pkt_pos (frame: {const} PAVFrame): cint64; + cdecl; external av__codec; overload; +procedure av_frame_get_pkt_pos (frame: PAVFrame; val: cint64); + cdecl; external av__codec; overload; +function av_frame_get_channel_layout (frame: {const} PAVFrame): cint64; + cdecl; external av__codec; overload; +procedure av_frame_get_channel_layout (frame: PAVFrame; val: cint64); + cdecl; external av__codec; overload; +function av_frame_get_channels (frame: {const} PAVFrame): cint; + cdecl; external av__codec; +procedure av_frame_set_channels (frame: PAVFrame; val: cint); + cdecl; external av__codec; +function av_frame_get_sample_rate (frame: {const} PAVFrame): cint; + cdecl; external av__codec; +procedure av_frame_set_sample_rate (frame: PAVFrame; val: cint); + cdecl; external av__codec; +function av_frame_get_metadata (frame: {const} PAVFrame): PAVDictionary; + cdecl; external av__codec; +procedure av_frame_set_metadata (frame: PAVFrame; val: PAVDictionary); + cdecl; external av__codec; +function av_frame_get_decode_error_flags (frame: {const} PAVFrame): cint; + cdecl; external av__codec; +procedure av_frame_set_decode_error_flags (frame: PAVFrame; val: cint); + cdecl; external av__codec; +function av_frame_get_pkt_size (frame: {const} PAVFrame): cint; + cdecl; external av__codec; +procedure av_frame_set_pkt_size (frame: PAVFrame; val: cint); + cdecl; external av__codec; +function avpriv_frame_get_metadatap(frame: PAVFrame): PPAVDictionary; + cdecl; external av__codec; +function av_frame_get_qp_table(f: PAVFrame; stride: pcint; type_: pcint): PByte; + cdecl; external av__codec; +function av_frame_set_qp_table(f: PAVFrame; buf: PAVBufferRef; stride: cint; type_: cint): cint; + cdecl; external av__codec; +function av_frame_get_colorspace(frame: {const} PAVFrame): TAVColorSpace; + cdecl; external av__codec; +procedure av_frame_set_colorspace(frame: PAVFrame; val: TAVColorSpace); + cdecl; external av__codec; +procedure av_frame_set_color_range(frame: PAVFrame; val: TAVColorSpace); + cdecl; external av__codec; + +(** + * Get the name of a colorspace. + * @return a static string identifying the colorspace; can be NULL. + *) +function av_get_colorspace_name(val: TAVColorSpace): PAnsiChar; + cdecl; external av__codec; + +(** + * Allocate an AVFrame and set its fields to default values. The resulting + * struct must be freed using av_frame_free(). + * + * @return An AVFrame filled with default values or NULL on failure. + * + * @note this only allocates the AVFrame itself, not the data buffers. Those + * must be allocated through other means, e.g. with av_frame_get_buffer() or + * manually. + *) +function av_frame_alloc(): PAVFrame; + cdecl; external av__codec; + +(** + * Free the frame and any dynamically allocated objects in it, + * e.g. extended_data. If the frame is reference counted, it will be + * unreferenced first. + * + * @param frame frame to be freed. The pointer will be set to NULL. + *) +procedure av_frame_free(frame: PPAVFrame); + cdecl; external av__codec; + +(** + * Setup a new reference to the data described by a given frame. + * + * Copy frame properties from src to dst and create a new reference for each + * AVBufferRef from src. + * + * If src is not reference counted, new buffers are allocated and the data is + * copied. + * + * @return 0 on success, a negative AVERROR on error + *) +function av_frame_ref(dst: PAVFrame; src: PAVFrame): cint; + cdecl; external av__codec; + +(** + * Create a new frame that references the same data as src. + * + * This is a shortcut for av_frame_alloc()+av_frame_ref(). + * + * @return newly created AVFrame on success, NULL on error. + *) +function av_frame_clone(src: PAVFrame): PAVFrame; + cdecl; external av__codec; + +(** + * Unreference all the buffers referenced by frame and reset the frame fields. + *) +procedure av_frame_unref(frame: PAVFrame); + cdecl; external av__codec; + +(** + * Move everythnig contained in src to dst and reset src. + *) +procedure av_frame_move_ref(dst, src: PAVFrame); + cdecl; external av__codec; + +(** + * Allocate new buffer(s) for audio or video data. + * + * The following fields must be set on frame before calling this function: + * - format (pixel format for video, sample format for audio) + * - width and height for video + * - nb_samples and channel_layout for audio + * + * This function will fill AVFrame.data and AVFrame.buf arrays and, if + * necessary, allocate and fill AVFrame.extended_data and AVFrame.extended_buf. + * For planar formats, one buffer will be allocated for each plane. + * + * @param frame frame in which to store the new buffers. + * @param align required buffer size alignment + * + * @return 0 on success, a negative AVERROR on error. + *) +function av_frame_get_buffer(frame: PAVFrame; align: cint): cint; + cdecl; external av__codec; + +(** + * Check if the frame data is writable. + * + * @return A positive value if the frame data is writable (which is true if and + * only if each of the underlying buffers has only one reference, namely the one + * stored in this frame). Return 0 otherwise. + * + * If 1 is returned the answer is valid until av_buffer_ref() is called on any + * of the underlying AVBufferRefs (e.g. through av_frame_ref() or directly). + * + * @see av_frame_make_writable(), av_buffer_is_writable() + *) +function av_frame_is_writable(frame: PAVFrame): cint; + cdecl; external av__codec; + +(** + * Ensure that the frame data is writable, avoiding data copy if possible. + * + * Do nothing if the frame is writable, allocate new buffers and copy the data + * if it is not. + * + * @return 0 on success, a negative AVERROR on error. + * + * @see av_frame_is_writable(), av_buffer_is_writable(), + * av_buffer_make_writable() + *) +function av_frame_make_writable(frame: PAVFrame): cint; + cdecl; external av__codec; + +(** + * Copy only "metadata" fields from src to dst. + * + * Metadata for the purpose of this function are those fields that do not affect + * the data layout in the buffers. E.g. pts, sample rate (for audio) or sample + * aspect ratio (for video), but not width/height or channel layout. + * Side data is also copied. + *) +function av_frame_copy_props(dst: PAVFrame; src: {const} PAVFrame): cint; + cdecl; external av__codec; + +(** + * Get the buffer reference a given data plane is stored in. + * + * @param plane index of the data plane of interest in frame->extended_data. + * + * @return the buffer reference that contains the plane or NULL if the input + * frame is not valid. + *) +function av_frame_get_plane_buffer(frame: PAVFrame; plane: cint): PAVBufferRef; + cdecl; external av__codec; + +(** + * Add a new side data to a frame. + * + * @param frame a frame to which the side data should be added + * @param type type of the added side data + * @param size size of the side data + * + * @return newly added side data on success, NULL on error + *) +function av_frame_new_side_data(frame: PAVFrame; + type_: TAVFrameSideDataType; + size: cint): PAVFrameSideData; + cdecl; external av__codec; + +(** + * @return a pointer to the side data of a given type on success, NULL if there + * is no side data with such type in this frame. + *) +function av_frame_get_side_data(frame: {const} PAVFrame; type_: TAVFrameSideDataType): PAVFrameSideData; + cdecl; external av__codec; |