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Diffstat (limited to 'ffmpeg1/libavfilter/internal.h')
| -rw-r--r-- | ffmpeg1/libavfilter/internal.h | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/ffmpeg1/libavfilter/internal.h b/ffmpeg1/libavfilter/internal.h deleted file mode 100644 index 9a42ae0..0000000 --- a/ffmpeg1/libavfilter/internal.h +++ /dev/null @@ -1,328 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_INTERNAL_H -#define AVFILTER_INTERNAL_H - -/** - * @file - * internal API functions - */ - -#include "avfilter.h" -#include "avfiltergraph.h" -#include "formats.h" -#include "video.h" - -#define POOL_SIZE 32 -typedef struct AVFilterPool { - AVFilterBufferRef *pic[POOL_SIZE]; - int count; - int refcount; - int draining; -} AVFilterPool; - -typedef struct AVFilterCommand { - double time; ///< time expressed in seconds - char *command; ///< command - char *arg; ///< optional argument for the command - int flags; - struct AVFilterCommand *next; -} AVFilterCommand; - -/** - * Update the position of a link in the age heap. - */ -void ff_avfilter_graph_update_heap(AVFilterGraph *graph, AVFilterLink *link); - -#if !FF_API_AVFILTERPAD_PUBLIC -/** - * A filter pad used for either input or output. - */ -struct AVFilterPad { - /** - * Pad name. The name is unique among inputs and among outputs, but an - * input may have the same name as an output. This may be NULL if this - * pad has no need to ever be referenced by name. - */ - const char *name; - - /** - * AVFilterPad type. - */ - enum AVMediaType type; - - /** - * Callback function to get a video buffer. If NULL, the filter system will - * use ff_default_get_video_buffer(). - * - * Input video pads only. - */ - AVFrame *(*get_video_buffer)(AVFilterLink *link, int w, int h); - - /** - * Callback function to get an audio buffer. If NULL, the filter system will - * use ff_default_get_audio_buffer(). - * - * Input audio pads only. - */ - AVFrame *(*get_audio_buffer)(AVFilterLink *link, int nb_samples); - - /** - * Filtering callback. This is where a filter receives a frame with - * audio/video data and should do its processing. - * - * Input pads only. - * - * @return >= 0 on success, a negative AVERROR on error. This function - * must ensure that samplesref is properly unreferenced on error if it - * hasn't been passed on to another filter. - */ - int (*filter_frame)(AVFilterLink *link, AVFrame *frame); - - /** - * Frame poll callback. This returns the number of immediately available - * samples. It should return a positive value if the next request_frame() - * is guaranteed to return one frame (with no delay). - * - * Defaults to just calling the source poll_frame() method. - * - * Output pads only. - */ - int (*poll_frame)(AVFilterLink *link); - - /** - * Frame request callback. A call to this should result in at least one - * frame being output over the given link. This should return zero on - * success, and another value on error. - * - * Output pads only. - */ - int (*request_frame)(AVFilterLink *link); - - /** - * Link configuration callback. - * - * For output pads, this should set the link properties such as - * width/height. This should NOT set the format property - that is - * negotiated between filters by the filter system using the - * query_formats() callback before this function is called. - * - * For input pads, this should check the properties of the link, and update - * the filter's internal state as necessary. - * - * For both input and output filters, this should return zero on success, - * and another value on error. - */ - int (*config_props)(AVFilterLink *link); - - /** - * The filter expects a fifo to be inserted on its input link, - * typically because it has a delay. - * - * input pads only. - */ - int needs_fifo; -}; -#endif - -/** default handler for freeing audio/video buffer when there are no references left */ -void ff_avfilter_default_free_buffer(AVFilterBuffer *buf); - -/** Tell is a format is contained in the provided list terminated by -1. */ -int ff_fmt_is_in(int fmt, const int *fmts); - -/** - * Return a copy of a list of integers terminated by -1, or NULL in - * case of copy failure. - */ -int *ff_copy_int_list(const int * const list); - -/** - * Return a copy of a list of 64-bit integers, or NULL in case of - * copy failure. - */ -int64_t *ff_copy_int64_list(const int64_t * const list); - -/* Functions to parse audio format arguments */ - -/** - * Parse a pixel format. - * - * @param ret pixel format pointer to where the value should be written - * @param arg string to parse - * @param log_ctx log context - * @return 0 in case of success, a negative AVERROR code on error - */ -int ff_parse_pixel_format(enum AVPixelFormat *ret, const char *arg, void *log_ctx); - -/** - * Parse a sample rate. - * - * @param ret unsigned integer pointer to where the value should be written - * @param arg string to parse - * @param log_ctx log context - * @return 0 in case of success, a negative AVERROR code on error - */ -int ff_parse_sample_rate(int *ret, const char *arg, void *log_ctx); - -/** - * Parse a time base. - * - * @param ret unsigned AVRational pointer to where the value should be written - * @param arg string to parse - * @param log_ctx log context - * @return 0 in case of success, a negative AVERROR code on error - */ -int ff_parse_time_base(AVRational *ret, const char *arg, void *log_ctx); - -/** - * Parse a sample format name or a corresponding integer representation. - * - * @param ret integer pointer to where the value should be written - * @param arg string to parse - * @param log_ctx log context - * @return 0 in case of success, a negative AVERROR code on error - */ -int ff_parse_sample_format(int *ret, const char *arg, void *log_ctx); - -/** - * Parse a channel layout or a corresponding integer representation. - * - * @param ret 64bit integer pointer to where the value should be written. - * @param arg string to parse - * @param log_ctx log context - * @return 0 in case of success, a negative AVERROR code on error - */ -int ff_parse_channel_layout(int64_t *ret, const char *arg, void *log_ctx); - -void ff_update_link_current_pts(AVFilterLink *link, int64_t pts); - -void ff_command_queue_pop(AVFilterContext *filter); - -/* misc trace functions */ - -/* #define FF_AVFILTER_TRACE */ - -#ifdef FF_AVFILTER_TRACE -# define ff_tlog(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__) -#else -# define ff_tlog(pctx, ...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) -#endif - -#define FF_TPRINTF_START(ctx, func) ff_tlog(NULL, "%-16s: ", #func) - -char *ff_get_ref_perms_string(char *buf, size_t buf_size, int perms); - -void ff_tlog_ref(void *ctx, AVFrame *ref, int end); - -void ff_tlog_link(void *ctx, AVFilterLink *link, int end); - -/** - * Insert a new pad. - * - * @param idx Insertion point. Pad is inserted at the end if this point - * is beyond the end of the list of pads. - * @param count Pointer to the number of pads in the list - * @param padidx_off Offset within an AVFilterLink structure to the element - * to increment when inserting a new pad causes link - * numbering to change - * @param pads Pointer to the pointer to the beginning of the list of pads - * @param links Pointer to the pointer to the beginning of the list of links - * @param newpad The new pad to add. A copy is made when adding. - */ -void ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off, - AVFilterPad **pads, AVFilterLink ***links, - AVFilterPad *newpad); - -/** Insert a new input pad for the filter. */ -static inline void ff_insert_inpad(AVFilterContext *f, unsigned index, - AVFilterPad *p) -{ - ff_insert_pad(index, &f->nb_inputs, offsetof(AVFilterLink, dstpad), - &f->input_pads, &f->inputs, p); -#if FF_API_FOO_COUNT - f->input_count = f->nb_inputs; -#endif -} - -/** Insert a new output pad for the filter. */ -static inline void ff_insert_outpad(AVFilterContext *f, unsigned index, - AVFilterPad *p) -{ - ff_insert_pad(index, &f->nb_outputs, offsetof(AVFilterLink, srcpad), - &f->output_pads, &f->outputs, p); -#if FF_API_FOO_COUNT - f->output_count = f->nb_outputs; -#endif -} - -/** - * Poll a frame from the filter chain. - * - * @param link the input link - * @return the number of immediately available frames, a negative - * number in case of error - */ -int ff_poll_frame(AVFilterLink *link); - -/** - * Request an input frame from the filter at the other end of the link. - * - * @param link the input link - * @return zero on success - */ -int ff_request_frame(AVFilterLink *link); - -#define AVFILTER_DEFINE_CLASS(fname) \ - static const AVClass fname##_class = { \ - .class_name = #fname, \ - .item_name = av_default_item_name, \ - .option = fname##_options, \ - .version = LIBAVUTIL_VERSION_INT, \ - .category = AV_CLASS_CATEGORY_FILTER, \ - } - -AVFilterBufferRef *ff_copy_buffer_ref(AVFilterLink *outlink, - AVFilterBufferRef *ref); - -/** - * Find the index of a link. - * - * I.e. find i such that link == ctx->(in|out)puts[i] - */ -#define FF_INLINK_IDX(link) ((int)((link)->dstpad - (link)->dst->input_pads)) -#define FF_OUTLINK_IDX(link) ((int)((link)->srcpad - (link)->src->output_pads)) - -int ff_buffersink_read_compat(AVFilterContext *ctx, AVFilterBufferRef **buf); -int ff_buffersink_read_samples_compat(AVFilterContext *ctx, AVFilterBufferRef **pbuf, - int nb_samples); -/** - * Send a frame of data to the next filter. - * - * @param link the output link over which the data is being sent - * @param frame a reference to the buffer of data being sent. The - * receiving filter will free this reference when it no longer - * needs it or pass it on to the next filter. - * - * @return >= 0 on success, a negative AVERROR on error. The receiving filter - * is responsible for unreferencing frame in case of error. - */ -int ff_filter_frame(AVFilterLink *link, AVFrame *frame); - -#endif /* AVFILTER_INTERNAL_H */ |