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Diffstat (limited to 'ffmpeg/libavcodec/internal.h')
| -rw-r--r-- | ffmpeg/libavcodec/internal.h | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/ffmpeg/libavcodec/internal.h b/ffmpeg/libavcodec/internal.h deleted file mode 100644 index 35bfcd4..0000000 --- a/ffmpeg/libavcodec/internal.h +++ /dev/null @@ -1,241 +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 - */ - -/** - * @file - * common internal api header. - */ - -#ifndef AVCODEC_INTERNAL_H -#define AVCODEC_INTERNAL_H - -#include <stdint.h> - -#include "libavutil/buffer.h" -#include "libavutil/mathematics.h" -#include "libavutil/pixfmt.h" -#include "avcodec.h" -#include "config.h" - -#define FF_SANE_NB_CHANNELS 63U - -typedef struct FramePool { - /** - * Pools for each data plane. For audio all the planes have the same size, - * so only pools[0] is used. - */ - AVBufferPool *pools[4]; - - /* - * Pool parameters - */ - int format; - int width, height; - int stride_align[AV_NUM_DATA_POINTERS]; - int linesize[4]; - int planes; - int channels; - int samples; -} FramePool; - -typedef struct AVCodecInternal { - /** - * Whether the parent AVCodecContext is a copy of the context which had - * init() called on it. - * This is used by multithreading - shared tables and picture pointers - * should be freed from the original context only. - */ - int is_copy; - - /** - * Whether to allocate progress for frame threading. - * - * The codec must set it to 1 if it uses ff_thread_await/report_progress(), - * then progress will be allocated in ff_thread_get_buffer(). The frames - * then MUST be freed with ff_thread_release_buffer(). - * - * If the codec does not need to call the progress functions (there are no - * dependencies between the frames), it should leave this at 0. Then it can - * decode straight to the user-provided frames (which the user will then - * free with av_frame_unref()), there is no need to call - * ff_thread_release_buffer(). - */ - int allocate_progress; - -#if FF_API_OLD_ENCODE_AUDIO - /** - * Internal sample count used by avcodec_encode_audio() to fabricate pts. - * Can be removed along with avcodec_encode_audio(). - */ - int64_t sample_count; -#endif - - /** - * An audio frame with less than required samples has been submitted and - * padded with silence. Reject all subsequent frames. - */ - int last_audio_frame; - - AVFrame *to_free; - - FramePool *pool; - - void *thread_ctx; - - /** - * Current packet as passed into the decoder, to avoid having to pass the - * packet into every function. - */ - AVPacket *pkt; - - /** - * temporary buffer used for encoders to store their bitstream - */ - uint8_t *byte_buffer; - unsigned int byte_buffer_size; - - void *frame_thread_encoder; - - /** - * Number of audio samples to skip at the start of the next decoded frame - */ - int skip_samples; -} AVCodecInternal; - -struct AVCodecDefault { - const uint8_t *key; - const uint8_t *value; -}; - -/** - * Return the hardware accelerated codec for codec codec_id and - * pixel format pix_fmt. - * - * @param avctx The codec context containing the codec_id and pixel format. - * @return the hardware accelerated codec, or NULL if none was found. - */ -AVHWAccel *ff_find_hwaccel(AVCodecContext *avctx); - -/** - * Return the index into tab at which {a,b} match elements {[0],[1]} of tab. - * If there is no such matching pair then size is returned. - */ -int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b); - -unsigned int avpriv_toupper4(unsigned int x); - -/** - * does needed setup of pkt_pts/pos and such for (re)get_buffer(); - */ -int ff_init_buffer_info(AVCodecContext *s, AVFrame *frame); - - -void avpriv_color_frame(AVFrame *frame, const int color[4]); - -extern volatile int ff_avcodec_locked; -int ff_lock_avcodec(AVCodecContext *log_ctx); -int ff_unlock_avcodec(void); - -int avpriv_lock_avformat(void); -int avpriv_unlock_avformat(void); - -/** - * Maximum size in bytes of extradata. - * This value was chosen such that every bit of the buffer is - * addressable by a 32-bit signed integer as used by get_bits. - */ -#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE) - -/** - * Check AVPacket size and/or allocate data. - * - * Encoders supporting AVCodec.encode2() can use this as a convenience to - * ensure the output packet data is large enough, whether provided by the user - * or allocated in this function. - * - * @param avctx the AVCodecContext of the encoder - * @param avpkt the AVPacket - * If avpkt->data is already set, avpkt->size is checked - * to ensure it is large enough. - * If avpkt->data is NULL, a new buffer is allocated. - * avpkt->size is set to the specified size. - * All other AVPacket fields will be reset with av_init_packet(). - * @param size the minimum required packet size - * @return 0 on success, negative error code on failure - */ -int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size); - -int ff_alloc_packet(AVPacket *avpkt, int size); - -/** - * Rescale from sample rate to AVCodecContext.time_base. - */ -static av_always_inline int64_t ff_samples_to_time_base(AVCodecContext *avctx, - int64_t samples) -{ - if(samples == AV_NOPTS_VALUE) - return AV_NOPTS_VALUE; - return av_rescale_q(samples, (AVRational){ 1, avctx->sample_rate }, - avctx->time_base); -} - -/** - * Get a buffer for a frame. This is a wrapper around - * AVCodecContext.get_buffer() and should be used instead calling get_buffer() - * directly. - */ -int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags); - -/** - * Identical in function to av_frame_make_writable(), except it uses - * ff_get_buffer() to allocate the buffer when needed. - */ -int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame); - -int ff_thread_can_start_frame(AVCodecContext *avctx); - -int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx); - -/** - * Call avcodec_open2 recursively by decrementing counter, unlocking mutex, - * calling the function and then restoring again. Assumes the mutex is - * already locked - */ -int ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options); - -/** - * Call avcodec_close recursively, counterpart to avcodec_open2_recursive. - */ -int ff_codec_close_recursive(AVCodecContext *avctx); - -/** - * Finalize buf into extradata and set its size appropriately. - */ -int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf); - -const uint8_t *avpriv_find_start_code(const uint8_t *p, - const uint8_t *end, - uint32_t *state); - -/** - * Check that the provided frame dimensions are valid and set them on the codec - * context. - */ -int ff_set_dimensions(AVCodecContext *s, int width, int height); - -#endif /* AVCODEC_INTERNAL_H */ |
