2008-12-08 23:21:38 +02:00
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
2010-04-20 17:45:34 +03:00
|
|
|
* @file
|
2008-12-08 23:21:38 +02:00
|
|
|
* common internal api header.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef AVCODEC_INTERNAL_H
|
|
|
|
#define AVCODEC_INTERNAL_H
|
|
|
|
|
2009-02-24 21:04:43 +02:00
|
|
|
#include <stdint.h>
|
2011-11-15 23:34:50 +03:00
|
|
|
|
2012-11-21 23:34:46 +03:00
|
|
|
#include "libavutil/buffer.h"
|
2013-12-11 05:03:29 +03:00
|
|
|
#include "libavutil/channel_layout.h"
|
2012-02-07 23:37:45 +03:00
|
|
|
#include "libavutil/mathematics.h"
|
2011-11-15 23:34:50 +03:00
|
|
|
#include "libavutil/pixfmt.h"
|
2009-02-24 21:04:43 +02:00
|
|
|
#include "avcodec.h"
|
2013-03-25 15:11:41 +03:00
|
|
|
#include "config.h"
|
2009-02-24 21:04:43 +02:00
|
|
|
|
2013-02-11 10:09:37 +03:00
|
|
|
#define FF_SANE_NB_CHANNELS 63U
|
2012-10-22 20:40:10 +03:00
|
|
|
|
2014-05-19 03:59:57 +03:00
|
|
|
#if HAVE_AVX
|
|
|
|
# define STRIDE_ALIGN 32
|
2014-07-22 23:32:40 +03:00
|
|
|
#elif HAVE_SIMD_ALIGN_16
|
2014-03-15 16:47:04 +03:00
|
|
|
# define STRIDE_ALIGN 16
|
|
|
|
#else
|
|
|
|
# define STRIDE_ALIGN 8
|
|
|
|
#endif
|
|
|
|
|
2012-11-21 23:34:46 +03:00
|
|
|
typedef struct FramePool {
|
2011-11-15 23:34:50 +03:00
|
|
|
/**
|
2012-11-21 23:34:46 +03:00
|
|
|
* Pools for each data plane. For audio all the planes have the same size,
|
|
|
|
* so only pools[0] is used.
|
2011-11-15 23:34:50 +03:00
|
|
|
*/
|
2012-11-21 23:34:46 +03:00
|
|
|
AVBufferPool *pools[4];
|
2011-11-15 23:34:50 +03:00
|
|
|
|
2012-11-21 23:34:46 +03:00
|
|
|
/*
|
|
|
|
* Pool parameters
|
2011-11-15 23:34:50 +03:00
|
|
|
*/
|
2012-11-21 23:34:46 +03:00
|
|
|
int format;
|
|
|
|
int width, height;
|
|
|
|
int stride_align[AV_NUM_DATA_POINTERS];
|
|
|
|
int linesize[4];
|
|
|
|
int planes;
|
|
|
|
int channels;
|
|
|
|
int samples;
|
|
|
|
} FramePool;
|
2011-11-15 23:34:50 +03:00
|
|
|
|
2012-11-21 23:34:46 +03:00
|
|
|
typedef struct AVCodecInternal {
|
2011-11-15 23:34:50 +03:00
|
|
|
/**
|
|
|
|
* 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;
|
2011-12-18 21:20:15 +03:00
|
|
|
|
2012-11-21 23:34:46 +03:00
|
|
|
/**
|
|
|
|
* 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;
|
|
|
|
|
2013-03-05 13:57:51 +03:00
|
|
|
#if FF_API_OLD_ENCODE_AUDIO
|
2011-12-18 21:20:15 +03:00
|
|
|
/**
|
|
|
|
* Internal sample count used by avcodec_encode_audio() to fabricate pts.
|
|
|
|
* Can be removed along with avcodec_encode_audio().
|
|
|
|
*/
|
2013-07-04 20:02:21 +03:00
|
|
|
int64_t sample_count;
|
2011-12-18 21:20:15 +03:00
|
|
|
#endif
|
2012-03-22 20:07:57 +03:00
|
|
|
|
2012-05-07 14:55:03 +03:00
|
|
|
/**
|
|
|
|
* An audio frame with less than required samples has been submitted and
|
|
|
|
* padded with silence. Reject all subsequent frames.
|
|
|
|
*/
|
|
|
|
int last_audio_frame;
|
2012-05-10 03:14:44 +03:00
|
|
|
|
2013-11-29 22:49:18 +03:00
|
|
|
AVFrame *to_free;
|
2012-11-21 23:34:46 +03:00
|
|
|
|
|
|
|
FramePool *pool;
|
2012-12-05 18:25:03 +03:00
|
|
|
|
2013-10-27 15:00:37 +03:00
|
|
|
void *thread_ctx;
|
2013-11-04 13:14:38 +03:00
|
|
|
|
2013-10-27 15:12:53 +03:00
|
|
|
/**
|
|
|
|
* Current packet as passed into the decoder, to avoid having to pass the
|
|
|
|
* packet into every function.
|
|
|
|
*/
|
|
|
|
AVPacket *pkt;
|
2013-11-04 13:41:55 +03:00
|
|
|
|
2012-03-22 20:07:57 +03:00
|
|
|
/**
|
|
|
|
* temporary buffer used for encoders to store their bitstream
|
|
|
|
*/
|
|
|
|
uint8_t *byte_buffer;
|
|
|
|
unsigned int byte_buffer_size;
|
2012-06-14 22:19:02 +03:00
|
|
|
|
|
|
|
void *frame_thread_encoder;
|
2012-07-04 23:03:13 +03:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Number of audio samples to skip at the start of the next decoded frame
|
|
|
|
*/
|
|
|
|
int skip_samples;
|
2014-05-12 01:21:44 +03:00
|
|
|
|
2014-03-06 20:37:42 +03:00
|
|
|
/**
|
|
|
|
* hwaccel-specific private data
|
|
|
|
*/
|
|
|
|
void *hwaccel_priv_data;
|
2011-11-15 23:34:50 +03:00
|
|
|
} AVCodecInternal;
|
|
|
|
|
2011-06-08 09:27:53 +03:00
|
|
|
struct AVCodecDefault {
|
|
|
|
const uint8_t *key;
|
|
|
|
const uint8_t *value;
|
|
|
|
};
|
|
|
|
|
2014-03-24 16:26:17 +03:00
|
|
|
extern const uint8_t ff_log2_run[41];
|
|
|
|
|
2010-01-10 06:06:34 +02:00
|
|
|
/**
|
|
|
|
* 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.
|
|
|
|
*/
|
2010-01-10 06:04:51 +02:00
|
|
|
int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
|
|
|
|
|
2011-10-17 11:12:51 +03:00
|
|
|
unsigned int avpriv_toupper4(unsigned int x);
|
2010-05-18 22:16:40 +03:00
|
|
|
|
2011-10-07 03:11:06 +03:00
|
|
|
/**
|
|
|
|
* does needed setup of pkt_pts/pos and such for (re)get_buffer();
|
|
|
|
*/
|
2013-03-12 14:41:16 +03:00
|
|
|
int ff_init_buffer_info(AVCodecContext *s, AVFrame *frame);
|
2011-10-07 03:11:06 +03:00
|
|
|
|
2013-02-16 14:13:27 +03:00
|
|
|
|
|
|
|
void avpriv_color_frame(AVFrame *frame, const int color[4]);
|
|
|
|
|
2012-11-27 23:56:35 +03:00
|
|
|
extern volatile int ff_avcodec_locked;
|
|
|
|
int ff_lock_avcodec(AVCodecContext *log_ctx);
|
|
|
|
int ff_unlock_avcodec(void);
|
|
|
|
|
2011-10-30 01:20:15 +03:00
|
|
|
int avpriv_lock_avformat(void);
|
|
|
|
int avpriv_unlock_avformat(void);
|
|
|
|
|
2012-01-12 22:12:24 +03:00
|
|
|
/**
|
|
|
|
* 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)
|
|
|
|
|
2011-12-18 21:20:15 +03:00
|
|
|
/**
|
|
|
|
* 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.
|
|
|
|
*
|
2012-03-22 05:55:21 +03:00
|
|
|
* @param avctx the AVCodecContext of the encoder
|
2011-12-18 21:20:15 +03:00
|
|
|
* @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.
|
2012-02-02 00:23:19 +03:00
|
|
|
* avpkt->size is set to the specified size.
|
2011-12-18 21:20:15 +03:00
|
|
|
* 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
|
|
|
|
*/
|
2013-09-09 18:08:03 +03:00
|
|
|
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size);
|
2012-03-22 05:55:21 +03:00
|
|
|
|
2011-12-18 21:20:15 +03:00
|
|
|
int ff_alloc_packet(AVPacket *avpkt, int size);
|
|
|
|
|
2012-02-07 23:37:45 +03:00
|
|
|
/**
|
|
|
|
* Rescale from sample rate to AVCodecContext.time_base.
|
|
|
|
*/
|
|
|
|
static av_always_inline int64_t ff_samples_to_time_base(AVCodecContext *avctx,
|
|
|
|
int64_t samples)
|
|
|
|
{
|
2012-04-11 21:23:27 +03:00
|
|
|
if(samples == AV_NOPTS_VALUE)
|
|
|
|
return AV_NOPTS_VALUE;
|
2012-02-07 23:37:45 +03:00
|
|
|
return av_rescale_q(samples, (AVRational){ 1, avctx->sample_rate },
|
|
|
|
avctx->time_base);
|
|
|
|
}
|
|
|
|
|
2012-11-10 15:22:56 +03:00
|
|
|
/**
|
|
|
|
* Get a buffer for a frame. This is a wrapper around
|
|
|
|
* AVCodecContext.get_buffer() and should be used instead calling get_buffer()
|
|
|
|
* directly.
|
|
|
|
*/
|
2012-11-21 23:34:46 +03:00
|
|
|
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);
|
2012-11-10 15:22:56 +03:00
|
|
|
|
2012-03-24 02:20:05 +03:00
|
|
|
int ff_thread_can_start_frame(AVCodecContext *avctx);
|
|
|
|
|
2012-07-03 00:16:59 +03:00
|
|
|
int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx);
|
|
|
|
|
2012-10-19 04:12:56 +03:00
|
|
|
/**
|
|
|
|
* 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);
|
|
|
|
|
2012-12-30 00:09:59 +03:00
|
|
|
/**
|
|
|
|
* Finalize buf into extradata and set its size appropriately.
|
|
|
|
*/
|
2012-12-31 00:54:53 +03:00
|
|
|
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf);
|
2012-12-30 00:09:59 +03:00
|
|
|
|
2013-03-26 15:32:12 +03:00
|
|
|
const uint8_t *avpriv_find_start_code(const uint8_t *p,
|
2013-03-25 15:11:41 +03:00
|
|
|
const uint8_t *end,
|
2013-03-26 15:32:12 +03:00
|
|
|
uint32_t *state);
|
2013-03-25 15:11:41 +03:00
|
|
|
|
2013-10-27 11:24:22 +03:00
|
|
|
/**
|
|
|
|
* 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);
|
|
|
|
|
2014-04-28 23:08:33 +03:00
|
|
|
/**
|
|
|
|
* Check that the provided sample aspect ratio is valid and set it on the codec
|
|
|
|
* context.
|
|
|
|
*/
|
|
|
|
int ff_set_sar(AVCodecContext *avctx, AVRational sar);
|
|
|
|
|
2013-12-11 05:03:29 +03:00
|
|
|
/**
|
|
|
|
* Add or update AV_FRAME_DATA_MATRIXENCODING side data.
|
|
|
|
*/
|
|
|
|
int ff_side_data_update_matrix_encoding(AVFrame *frame,
|
|
|
|
enum AVMatrixEncoding matrix_encoding);
|
|
|
|
|
2014-03-06 19:48:18 +03:00
|
|
|
/**
|
|
|
|
* Select the (possibly hardware accelerated) pixel format.
|
|
|
|
* This is a wrapper around AVCodecContext.get_format() and should be used
|
|
|
|
* instead of calling get_format() directly.
|
|
|
|
*/
|
|
|
|
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt);
|
|
|
|
|
2014-02-19 20:52:26 +03:00
|
|
|
/**
|
|
|
|
* Set various frame properties from the codec context / packet data.
|
|
|
|
*/
|
|
|
|
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame);
|
2014-03-10 15:37:12 +03:00
|
|
|
|
2008-12-08 23:21:38 +02:00
|
|
|
#endif /* AVCODEC_INTERNAL_H */
|