#include <stdint.h>
#include "libavutil/mathematics.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
Go to the source code of this file.
Data Structures | |
| struct | InternalBuffer |
| struct | AVCodecInternal |
| struct | AVCodecDefault |
Defines | |
| #define | FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE) |
| Maximum size in bytes of extradata. | |
Functions | |
| int | ff_is_hwaccel_pix_fmt (enum PixelFormat pix_fmt) |
| Determine whether pix_fmt is a hardware accelerated format. | |
| AVHWAccel * | ff_find_hwaccel (enum AVCodecID codec_id, enum PixelFormat pix_fmt) |
| Return the hardware accelerated codec for codec codec_id and pixel format pix_fmt. | |
| int | ff_match_2uint16 (const uint16_t(*tab)[2], int size, int a, int b) |
| Return the index into tab at which {a,b} match elements {[0],[1]} of tab. | |
| unsigned int | avpriv_toupper4 (unsigned int x) |
| void | ff_init_buffer_info (AVCodecContext *s, AVFrame *frame) |
| does needed setup of pkt_pts/pos and such for (re)get_buffer(); | |
| void | ff_packet_free_side_data (AVPacket *pkt) |
| Remove and free all side data from packet. | |
| int | avpriv_lock_avformat (void) |
| int | avpriv_unlock_avformat (void) |
| int | ff_alloc_packet2 (AVCodecContext *avctx, AVPacket *avpkt, int size) |
| Check AVPacket size and/or allocate data. | |
| int | ff_alloc_packet (AVPacket *avpkt, int size) |
| static av_always_inline int64_t | ff_samples_to_time_base (AVCodecContext *avctx, int64_t samples) |
| Rescale from sample rate to AVCodecContext.time_base. | |
| int | ff_thread_can_start_frame (AVCodecContext *avctx) |
| int | ff_get_logical_cpus (AVCodecContext *avctx) |
| int | avpriv_h264_has_num_reorder_frames (AVCodecContext *avctx) |
Definition in file internal.h.
| #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE) |
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.
Definition at line 140 of file internal.h.
Referenced by avcodec_open2(), and avformat_find_stream_info().
| int avpriv_h264_has_num_reorder_frames | ( | AVCodecContext * | avctx | ) |
| int avpriv_lock_avformat | ( | void | ) |
Definition at line 2509 of file utils.c.
Referenced by ff_codec_get_id(), ff_MPV_common_init(), mpeg_decode_frame(), and validate_codec_tag().
| int avpriv_unlock_avformat | ( | void | ) |
| int ff_alloc_packet2 | ( | AVCodecContext * | avctx, | |
| AVPacket * | avpkt, | |||
| int | 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.
| avctx | the AVCodecContext of the encoder | |
| 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(). | |
| size | the minimum required packet size |
Definition at line 1054 of file utils.c.
Referenced by a64multi_encode_frame(), aac_encode_frame(), aacPlus_encode_frame(), adx_encode_frame(), alac_encode_frame(), amr_wb_encode_frame(), avui_encode_frame(), bmp_encode_frame(), dnxhd_encode_picture(), encode_frame(), encode_nals(), encode_picture_lossless(), encode_picture_ls(), encode_superframe(), Faac_encode_frame(), ff_alloc_packet(), ff_MPV_encode_picture(), flac_encode_frame(), flashsv2_encode_frame(), flashsv_encode_frame(), gif_encode_frame(), libgsm_encode_frame(), libopenjpeg_encode_frame(), libschroedinger_encode_frame(), mp3lame_encode_frame(), MPA_encode_frame(), oggvorbis_encode_frame(), pam_encode_frame(), pcm_encode_frame(), pcx_encode_frame(), pnm_encode_frame(), prores_encode_frame(), qtrle_encode_frame(), ra144_encode_frame(), raw_encode(), roq_dpcm_encode_frame(), roq_encode_frame(), storeframe(), sunrast_encode_frame(), svq1_encode_frame(), targa_encode_frame(), twolame_encode_frame(), utvideo_encode_frame(), v308_encode_frame(), v408_encode_frame(), v410_encode_frame(), vorbis_encode_frame(), XAVS_frame(), xbm_encode_frame(), xvid_encode_frame(), xwd_encode_frame(), y41p_encode_frame(), and yuv4_encode_frame().
| AVHWAccel* ff_find_hwaccel | ( | enum AVCodecID | codec_id, | |
| enum PixelFormat | pix_fmt | |||
| ) |
Return the hardware accelerated codec for codec codec_id and pixel format pix_fmt.
| codec_id | the codec to match | |
| pix_fmt | the pixel format to match |
Definition at line 2460 of file utils.c.
Referenced by decode_slice_header(), ff_h263_decode_init(), vc1_decode_init(), and vcr2_init_sequence().
| int ff_get_logical_cpus | ( | AVCodecContext * | avctx | ) |
Definition at line 165 of file pthread.c.
Referenced by ff_frame_thread_encoder_init(), frame_thread_init(), and thread_init().
| void ff_init_buffer_info | ( | AVCodecContext * | s, | |
| AVFrame * | frame | |||
| ) |
does needed setup of pkt_pts/pos and such for (re)get_buffer();
Definition at line 305 of file utils.c.
Referenced by audio_get_buffer(), avcodec_default_reget_buffer(), ff_thread_get_buffer(), and video_get_buffer().
| int ff_is_hwaccel_pix_fmt | ( | enum PixelFormat | pix_fmt | ) |
Determine whether pix_fmt is a hardware accelerated format.
Definition at line 398 of file imgconvert.c.
Referenced by avcodec_default_get_format().
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.
Definition at line 2412 of file utils.c.
Referenced by ff_h263_encode_picture_header(), ff_MPV_encode_init(), and svq1_write_header().
| void ff_packet_free_side_data | ( | AVPacket * | pkt | ) |
Remove and free all side data from packet.
Definition at line 30 of file avpacket.c.
Referenced by av_destruct_packet(), avcodec_decode_audio4(), avcodec_decode_video2(), and avcodec_encode_audio().
| static av_always_inline int64_t ff_samples_to_time_base | ( | AVCodecContext * | avctx, | |
| int64_t | samples | |||
| ) | [static] |
Rescale from sample rate to AVCodecContext.time_base.
Definition at line 166 of file internal.h.
Referenced by amr_wb_encode_frame(), avcodec_encode_audio(), avcodec_encode_audio2(), encode_frame(), encode_superframe(), ff_af_queue_remove(), flac_encode_frame(), MPA_encode_frame(), oggvorbis_encode_frame(), twolame_encode_frame(), and vorbis_encode_frame().
| int ff_thread_can_start_frame | ( | AVCodecContext * | avctx | ) |
1.5.8