FFmpeg
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The simplest mpeg encoder (well, it was the simplest!). More...
#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/motion_vector.h"
#include "libavutil/timer.h"
#include "avcodec.h"
#include "blockdsp.h"
#include "h264chroma.h"
#include "idctdsp.h"
#include "internal.h"
#include "mathops.h"
#include "mpeg_er.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"
#include "mjpegenc.h"
#include "msmpeg4.h"
#include "qpeldsp.h"
#include "thread.h"
#include "wmv2.h"
#include <limits.h>
Go to the source code of this file.
Macros | |
#define | COPY(a) bak->a = src->a |
#define | UPDATE_PICTURE(pic) |
#define | REBASE_PICTURE(pic, new_ctx, old_ctx) |
#define | COLOR(theta, r) |
The simplest mpeg encoder (well, it was the simplest!).
Definition in file mpegvideo.c.
Referenced by backup_duplicate_context().
#define UPDATE_PICTURE | ( | pic | ) |
Referenced by ff_mpeg_update_thread_context().
#define REBASE_PICTURE | ( | pic, | |
new_ctx, | |||
old_ctx | |||
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Referenced by ff_mpeg_update_thread_context().
#define COLOR | ( | theta, | |
r | |||
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Referenced by ff_print_debug_info2().
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Definition at line 53 of file mpegvideo.c.
Referenced by dct_init().
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Definition at line 82 of file mpegvideo.c.
Referenced by dct_init().
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Definition at line 111 of file mpegvideo.c.
Referenced by dct_init().
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Definition at line 141 of file mpegvideo.c.
Referenced by dct_init().
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Definition at line 175 of file mpegvideo.c.
Referenced by dct_init().
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Definition at line 209 of file mpegvideo.c.
Referenced by dct_init().
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Definition at line 243 of file mpegvideo.c.
Referenced by dct_init().
Definition at line 270 of file mpegvideo.c.
Referenced by dct_init().
Definition at line 276 of file mpegvideo.c.
Referenced by dct_init().
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Definition at line 283 of file mpegvideo.c.
Referenced by ff_mpv_common_init(), and main().
av_cold void ff_mpv_idct_init | ( | MpegEncContext * | s | ) |
Definition at line 330 of file mpegvideo.c.
Referenced by dnxhd_encode_init(), ff_h263_decode_frame(), ff_h263_decode_init(), ff_mpeg4_workaround_bugs(), ff_mpeg_update_thread_context(), ff_mpv_encode_init(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), h261_decode_frame(), mpeg_decode_init(), rv10_decode_init(), and vcr2_init_sequence().
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Definition at line 348 of file mpegvideo.c.
Referenced by ff_mpv_frame_start().
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Definition at line 356 of file mpegvideo.c.
Referenced by ff_mpv_common_frame_size_change(), and ff_mpv_common_init().
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Definition at line 408 of file mpegvideo.c.
Referenced by ff_mpv_common_end(), and ff_mpv_common_frame_size_change().
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Definition at line 428 of file mpegvideo.c.
Referenced by ff_update_duplicate_context().
int ff_update_duplicate_context | ( | MpegEncContext * | dst, |
MpegEncContext * | src | ||
) |
Definition at line 455 of file mpegvideo.c.
Referenced by decode_chunks(), and encode_picture().
int ff_mpeg_update_thread_context | ( | AVCodecContext * | dst, |
const AVCodecContext * | src | ||
) |
Definition at line 483 of file mpegvideo.c.
Referenced by ff_rv34_decode_update_thread_context().
void ff_mpv_common_defaults | ( | MpegEncContext * | s | ) |
Set the given MpegEncContext to common defaults (same for encoding and decoding).
The changed fields will not depend upon the prior state of the MpegEncContext.
Definition at line 634 of file mpegvideo.c.
Referenced by ff_mpv_decode_defaults(), and mpv_encode_defaults().
void ff_mpv_decode_defaults | ( | MpegEncContext * | s | ) |
Set the given MpegEncContext to defaults for decoding.
the changed fields will not depend upon the prior state of the MpegEncContext.
Definition at line 657 of file mpegvideo.c.
Referenced by ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_init(), mpeg_decode_init(), and rv10_decode_init().
void ff_mpv_decode_init | ( | MpegEncContext * | s, |
AVCodecContext * | avctx | ||
) |
Definition at line 662 of file mpegvideo.c.
Referenced by ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_init(), mpeg_decode_init(), and rv10_decode_init().
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Initialize and allocates MpegEncContext fields dependent on the resolution.
Definition at line 677 of file mpegvideo.c.
Referenced by ff_mpv_common_frame_size_change(), and ff_mpv_common_init().
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Definition at line 798 of file mpegvideo.c.
Referenced by ff_mpv_common_init().
av_cold int ff_mpv_common_init | ( | MpegEncContext * | s | ) |
init common structure for both encoder and decoder.
this assumes that some variables like width/height are already set
Definition at line 877 of file mpegvideo.c.
Referenced by ff_h263_decode_frame(), ff_h263_decode_init(), ff_mpeg_update_thread_context(), ff_mpv_encode_init(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), h261_decode_frame(), rv10_decode_init(), rv20_decode_picture_header(), svq1_encode_init(), and vcr2_init_sequence().
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Frees and resets MpegEncContext fields depending on the resolution.
Is used during resolution changes to avoid a full reinitialization of the codec.
Definition at line 987 of file mpegvideo.c.
Referenced by ff_mpv_common_end(), and ff_mpv_common_frame_size_change().
int ff_mpv_common_frame_size_change | ( | MpegEncContext * | s | ) |
Definition at line 1036 of file mpegvideo.c.
Referenced by ff_h263_decode_frame(), ff_mpeg_update_thread_context(), ff_rv34_decode_frame(), and ff_rv34_decode_update_thread_context().
void ff_mpv_common_end | ( | MpegEncContext * | s | ) |
Definition at line 1115 of file mpegvideo.c.
Referenced by ff_h263_decode_end(), ff_mpv_common_frame_size_change(), ff_mpv_common_init(), ff_mpv_encode_end(), ff_rv34_decode_end(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), ff_vc1_decode_end(), h261_decode_end(), h261_decode_frame(), mpeg_decode_end(), rv10_decode_end(), rv20_decode_picture_header(), svq1_encode_end(), vc1_decode_frame(), and vcr2_init_sequence().
Definition at line 1169 of file mpegvideo.c.
Referenced by ff_mpv_frame_start().
int ff_mpv_frame_start | ( | MpegEncContext * | s, |
AVCodecContext * | avctx | ||
) |
generic function called after decoding the header and before a frame is decoded.
Definition at line 1189 of file mpegvideo.c.
Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_rv34_decode_frame(), h261_decode_frame(), mpeg_field_start(), rv10_decode_packet(), and vc1_decode_frame().
void ff_mpv_frame_end | ( | MpegEncContext * | s | ) |
Definition at line 1421 of file mpegvideo.c.
Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_rv34_decode_frame(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), rv10_decode_packet(), slice_end(), and vc1_decode_frame().
Definition at line 1431 of file mpegvideo.c.
Referenced by draw_line().
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Draw a line from (ex, ey) -> (sx, sy).
w | width of the image |
h | height of the image |
stride | stride/linesize of the image |
color | color of the arrow |
Definition at line 1460 of file mpegvideo.c.
Referenced by draw_arrow().
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Draw an arrow from (ex, ey) -> (sx, sy).
w | width of the image |
h | height of the image |
stride | stride/linesize of the image |
color | color of the arrow |
Definition at line 1518 of file mpegvideo.c.
Referenced by ff_print_debug_info2().
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Definition at line 1557 of file mpegvideo.c.
Referenced by ff_print_debug_info2().
void ff_print_debug_info2 | ( | AVCodecContext * | avctx, |
AVFrame * | pict, | ||
uint8_t * | mbskip_table, | ||
uint32_t * | mbtype_table, | ||
int8_t * | qscale_table, | ||
int16_t(*[2]) | motion_val[2], | ||
int * | low_delay, | ||
int | mb_width, | ||
int | mb_height, | ||
int | mb_stride, | ||
int | quarter_sample | ||
) |
Print debugging info for the given picture.
Definition at line 1579 of file mpegvideo.c.
Referenced by ff_print_debug_info(), and finalize_frame().
void ff_print_debug_info | ( | MpegEncContext * | s, |
Picture * | p, | ||
AVFrame * | pict | ||
) |
Definition at line 1961 of file mpegvideo.c.
Referenced by ff_h263_decode_frame(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), slice_end(), and vc1_decode_frame().
int ff_mpv_export_qp_table | ( | MpegEncContext * | s, |
AVFrame * | f, | ||
Picture * | p, | ||
int | qp_type | ||
) |
Definition at line 1968 of file mpegvideo.c.
Referenced by ff_h263_decode_frame(), finish_frame(), rv10_decode_frame(), and slice_end().
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Definition at line 1980 of file mpegvideo.c.
Referenced by MPV_motion_lowres().
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Definition at line 2027 of file mpegvideo.c.
Referenced by MPV_motion_lowres().
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Definition at line 2166 of file mpegvideo.c.
Referenced by MPV_motion_lowres().
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motion compensation of a single macroblock
s | context |
dest_y | luma destination pointer |
dest_cb | chroma cb/u destination pointer |
dest_cr | chroma cr/v destination pointer |
dir | direction (0->forward, 1->backward) |
ref_picture | array[3] of pointers to the 3 planes of the reference picture |
pix_op | halfpel motion compensation function (average or put normally) the motion vectors are taken from s->mv and the MV type from s->mv_type |
Definition at line 2234 of file mpegvideo.c.
Referenced by mpv_decode_mb_internal().
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find the lowest MB row referenced in the MVs
Definition at line 2368 of file mpegvideo.c.
Referenced by mpv_decode_mb_internal().
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Definition at line 2404 of file mpegvideo.c.
Referenced by mpv_decode_mb_internal().
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Definition at line 2412 of file mpegvideo.c.
Referenced by mpv_decode_mb_internal().
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Definition at line 2420 of file mpegvideo.c.
Referenced by mpv_decode_mb_internal().
void ff_clean_intra_table_entries | ( | MpegEncContext * | s | ) |
Clean dc, ac, coded_block for the current non-intra MB.
Definition at line 2433 of file mpegvideo.c.
Referenced by encode_thread(), mpeg4_decode_partition_a(), and mpv_decode_mb_internal().
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Definition at line 2474 of file mpegvideo.c.
Referenced by ff_mpv_decode_mb().
void ff_mpv_decode_mb | ( | MpegEncContext * | s, |
int16_t | block[12][64] | ||
) |
Definition at line 2722 of file mpegvideo.c.
Referenced by decode_slice(), encode_mb_hq(), encode_thread(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg_decode_slice(), mpeg_er_decode_mb(), and rv10_decode_packet().
void ff_mpeg_draw_horiz_band | ( | MpegEncContext * | s, |
int | y, | ||
int | h | ||
) |
Definition at line 2734 of file mpegvideo.c.
Referenced by decode_slice(), dxva2_mpeg2_end_frame(), dxva2_vc1_end_frame(), ff_xvmc_decode_mb(), ff_xvmc_field_end(), mpeg_decode_slice(), vaapi_mpeg2_end_frame(), vaapi_mpeg4_end_frame(), vaapi_vc1_end_frame(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().
void ff_init_block_index | ( | MpegEncContext * | s | ) |
Definition at line 2741 of file mpegvideo.c.
Referenced by decode_slice(), encode_thread(), estimate_motion_thread(), ff_h261_reorder_mb_index(), h261_decode_mb(), h261_decode_mb_skipped(), init_block_index(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg_decode_slice(), mpeg_er_decode_mb(), rv10_decode_packet(), and rv34_decode_slice().
void ff_mpeg_flush | ( | AVCodecContext * | avctx | ) |
Definition at line 2773 of file mpegvideo.c.
Referenced by decode_wmv9(), and flush().
void ff_set_qscale | ( | MpegEncContext * | s, |
int | qscale | ||
) |
set qscale and update qscale dependent variables.
Definition at line 2804 of file mpegvideo.c.
Referenced by decode_slice(), encode_mb_internal(), encode_thread(), ff_h261_encode_mb(), h261_decode_gob(), h261_decode_mb(), h263_decode_dquant(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg4_decode_partitioned_mb(), and rv10_decode_packet().
void ff_mpv_report_decode_progress | ( | MpegEncContext * | s | ) |
Definition at line 2818 of file mpegvideo.c.
Referenced by decode_slice(), and mpeg_decode_slice().