The simplest mpeg encoder (well, it was the simplest!). More...
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "dsputil.h"
#include "internal.h"
#include "mathops.h"
#include "mpegvideo.h"
#include "mjpegenc.h"
#include "msmpeg4.h"
#include "xvmc_internal.h"
#include "thread.h"
#include <limits.h>
Go to the source code of this file.
Macros | |
#define | COPY(a) bak->a = src->a |
#define | COLOR(theta, r) |
Variables | |
static const uint8_t | ff_default_chroma_qscale_table [32] |
const uint8_t | ff_mpeg1_dc_scale_table [128] |
static const uint8_t | mpeg2_dc_scale_table1 [128] |
static const uint8_t | mpeg2_dc_scale_table2 [128] |
static const uint8_t | mpeg2_dc_scale_table3 [128] |
const uint8_t *const | ff_mpeg2_dc_scale_table [4] |
enum AVPixelFormat | ff_pixfmt_list_420 [] |
enum AVPixelFormat | ff_hwaccel_pixfmt_list_420 [] |
The simplest mpeg encoder (well, it was the simplest!).
Definition in file mpegvideo.c.
#define COLOR | ( | theta, | |
r | |||
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Referenced by avfilter_register_all(), and ff_print_debug_info().
#define COPY | ( | a | ) | bak->a = src->a |
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Definition at line 2094 of file mpegvideo.c.
Referenced by MPV_decode_mb_internal().
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Definition at line 2102 of file mpegvideo.c.
Referenced by MPV_decode_mb_internal().
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Allocate a frame buffer.
Definition at line 273 of file mpegvideo.c.
Referenced by ff_alloc_picture().
const uint8_t* avpriv_mpv_find_start_code | ( | const uint8_t *restrict | p, |
const uint8_t * | end, | ||
uint32_t *restrict | state | ||
) |
Definition at line 147 of file mpegvideo.c.
Referenced by cavs_decode_frame(), decode_chunks(), ff_mpeg1_find_frame_end(), ff_rtp_send_mpegvideo(), mpeg_decode_slice(), mpegts_write_packet_internal(), mpegvideo_extract_headers(), parse_nal_units(), and slice_decode_thread().
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Definition at line 520 of file mpegvideo.c.
Referenced by ff_update_duplicate_context().
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Definition at line 2717 of file mpegvideo.c.
Referenced by ff_dct_common_init().
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Definition at line 2680 of file mpegvideo.c.
Referenced by ff_dct_common_init().
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Definition at line 2557 of file mpegvideo.c.
Referenced by ff_dct_common_init().
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Definition at line 2525 of file mpegvideo.c.
Referenced by ff_dct_common_init().
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Definition at line 2649 of file mpegvideo.c.
Referenced by ff_dct_common_init().
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Definition at line 2616 of file mpegvideo.c.
Referenced by ff_dct_common_init().
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Definition at line 2586 of file mpegvideo.c.
Referenced by ff_dct_common_init().
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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 1712 of file mpegvideo.c.
Referenced by ff_print_debug_info().
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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 1659 of file mpegvideo.c.
Referenced by draw_arrow().
int ff_alloc_picture | ( | MpegEncContext * | s, |
Picture * | pic, | ||
int | shared | ||
) |
Allocate a Picture.
The pixels are allocated/set by calling get_buffer() if shared = 0
Definition at line 332 of file mpegvideo.c.
Referenced by ff_MPV_frame_start(), load_input_picture(), and select_input_picture().
void ff_clean_intra_table_entries | ( | MpegEncContext * | s | ) |
Clean dc, ac, coded_block for the current non-intra MB.
Definition at line 2115 of file mpegvideo.c.
Referenced by encode_thread(), mpeg4_decode_partition_a(), and MPV_decode_mb_internal().
Definition at line 223 of file mpegvideo.c.
Referenced by decode_slice_header(), ff_MPV_frame_start(), and select_input_picture().
av_cold int ff_dct_common_init | ( | MpegEncContext * | s | ) |
Definition at line 181 of file mpegvideo.c.
Referenced by dnxhd_encode_init(), ff_h263_decode_frame(), and ff_MPV_common_init().
void ff_draw_horiz_band | ( | MpegEncContext * | s, |
int | y, | ||
int | h | ||
) |
h | is the normal height, this will be reduced automatically if needed for the last row |
Definition at line 2399 of file mpegvideo.c.
Referenced by decode_finish_row(), decode_slice(), ff_dxva2_common_end_frame(), ff_intrax8_decode_picture(), ff_vaapi_common_end_frame(), ff_vdpau_h264_picture_complete(), ff_vdpau_mpeg4_decode_picture(), ff_vdpau_mpeg_picture_complete(), ff_vdpau_vc1_decode_picture(), ff_xvmc_decode_mb(), ff_xvmc_field_end(), mpeg_decode_slice(), svq3_decode_frame(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().
int ff_find_unused_picture | ( | MpegEncContext * | s, |
int | shared | ||
) |
Definition at line 1331 of file mpegvideo.c.
Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_MPV_frame_start(), h261_decode_frame(), load_input_picture(), select_input_picture(), and vc1_decode_frame().
void ff_init_block_index | ( | MpegEncContext * | s | ) |
Definition at line 2466 of file mpegvideo.c.
Referenced by decode_slice(), encode_thread(), estimate_motion_thread(), ff_er_frame_end(), ff_h261_reorder_mb_index(), guess_mv(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg_decode_slice(), rv10_decode_packet(), rv34_decode_slice(), svq1_encode_plane(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().
static_store | static uint8_t array[2][2*MAX_RUN + MAX_LEVEL + 3] which will hold the level and run tables, if this is NULL av_malloc() will be used |
Definition at line 1191 of file mpegvideo.c.
Referenced by encode_init(), ff_h261_encode_init(), ff_h263_decode_init_vlc(), ff_h263_encode_init(), ff_mpeg12_init_vlcs(), ff_mpeg1_encode_init(), ff_mpeg4_init_tables(), ff_msmpeg4_decode_init(), ff_msmpeg4_encode_init(), and h261_decode_init_vlc().
Definition at line 1243 of file mpegvideo.c.
void ff_mpeg_flush | ( | AVCodecContext * | avctx | ) |
Definition at line 2498 of file mpegvideo.c.
Referenced by decode_wmv9(), flush(), and flush_dpb().
int ff_mpeg_update_thread_context | ( | AVCodecContext * | dst, |
const AVCodecContext * | src | ||
) |
Definition at line 570 of file mpegvideo.c.
Referenced by decode_update_thread_context(), ff_rv34_decode_update_thread_context(), and mpeg_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 689 of file mpegvideo.c.
Referenced by ff_MPV_decode_defaults(), and MPV_encode_defaults().
void ff_MPV_common_end | ( | MpegEncContext * | s | ) |
Definition at line 1141 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_vc1_decode_end(), h261_decode_end(), h261_decode_frame(), h264_decode_end(), mpeg_decode_end(), mpeg_decode_postinit(), rv10_decode_end(), rv20_decode_picture_header(), svq3_decode_end(), vc1_decode_frame(), and vcr2_init_sequence().
int ff_MPV_common_frame_size_change | ( | MpegEncContext * | s | ) |
Definition at line 1069 of file mpegvideo.c.
Referenced by ff_h263_decode_frame(), ff_mpeg_update_thread_context(), ff_rv34_decode_frame(), ff_rv34_decode_update_thread_context(), and h264_slice_header_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 882 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(), h264_slice_header_init(), rv10_decode_init(), rv20_decode_picture_header(), svq3_decode_init(), and vcr2_init_sequence().
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 718 of file mpegvideo.c.
Referenced by ff_h263_decode_init(), ff_h264_decode_init(), ff_rv34_decode_init(), h261_decode_init(), mpeg_decode_init(), and rv10_decode_init().
void ff_MPV_decode_mb | ( | MpegEncContext * | s, |
DCTELEM | block[12][64] | ||
) |
Definition at line 2387 of file mpegvideo.c.
Referenced by decode_mb(), decode_slice(), encode_mb_hq(), encode_thread(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg_decode_slice(), and rv10_decode_packet().
void ff_MPV_frame_end | ( | MpegEncContext * | s | ) |
Definition at line 1581 of file mpegvideo.c.
Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_MPV_encode_picture(), ff_rv34_decode_frame(), field_end(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), rv10_decode_packet(), slice_end(), svq3_decode_frame(), and vc1_decode_frame().
int ff_mpv_frame_size_alloc | ( | MpegEncContext * | s, |
int | linesize | ||
) |
Definition at line 245 of file mpegvideo.c.
Referenced by alloc_frame_buffer(), clone_slice(), ff_mpeg_update_thread_context(), and ff_update_duplicate_context().
int ff_MPV_frame_start | ( | MpegEncContext * | s, |
AVCodecContext * | avctx | ||
) |
generic function for encode/decode called after coding/decoding the header and before a frame is coded/decoded.
Definition at line 1370 of file mpegvideo.c.
Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_h264_frame_start(), ff_MPV_encode_picture(), ff_rv34_decode_frame(), h261_decode_frame(), mpeg_field_start(), rv10_decode_packet(), and vc1_decode_frame().
int ff_MPV_lowest_referenced_row | ( | MpegEncContext * | s, |
int | dir | ||
) |
find the lowest MB row referenced in the MVs
Definition at line 2050 of file mpegvideo.c.
Referenced by MPV_decode_mb_internal().
void ff_MPV_report_decode_progress | ( | MpegEncContext * | s | ) |
Definition at line 2760 of file mpegvideo.c.
Referenced by decode_slice(), and mpeg_decode_slice().
void ff_print_debug_info | ( | MpegEncContext * | s, |
AVFrame * | pict | ||
) |
Print debugging info for the given picture.
Definition at line 1743 of file mpegvideo.c.
Referenced by decode_frame(), ff_h263_decode_frame(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), slice_end(), and vc1_decode_frame().
void ff_release_unused_pictures | ( | MpegEncContext * | s, |
int | remove_current | ||
) |
Definition at line 1283 of file mpegvideo.c.
Referenced by decode_slice_header(), and ff_MPV_frame_start().
void ff_set_qscale | ( | MpegEncContext * | s, |
int | qscale | ||
) |
set qscale and update qscale dependent variables.
Definition at line 2746 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().
int ff_update_duplicate_context | ( | MpegEncContext * | dst, |
MpegEncContext * | src | ||
) |
Definition at line 547 of file mpegvideo.c.
Referenced by decode_chunks(), and encode_picture().
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Definition at line 1308 of file mpegvideo.c.
Referenced by ff_find_unused_picture().
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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 1016 of file mpegvideo.c.
Referenced by ff_MPV_common_end(), and ff_MPV_common_frame_size_change().
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Definition at line 500 of file mpegvideo.c.
Referenced by ff_MPV_common_end(), and ff_MPV_common_frame_size_change().
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Release a frame buffer.
Definition at line 232 of file mpegvideo.c.
Referenced by alloc_frame_buffer(), ff_alloc_picture(), ff_mpeg_flush(), ff_MPV_frame_end(), ff_MPV_frame_start(), ff_release_unused_pictures(), and free_picture().
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Deallocate a picture.
Definition at line 421 of file mpegvideo.c.
Referenced by ff_find_unused_picture(), and ff_MPV_common_end().
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Initialize and allocates MpegEncContext fields dependent on the resolution.
Definition at line 726 of file mpegvideo.c.
Referenced by ff_MPV_common_frame_size_change(), and ff_MPV_common_init().
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Definition at line 455 of file mpegvideo.c.
Referenced by ff_MPV_common_frame_size_change(), and ff_MPV_common_init().
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Definition at line 2156 of file mpegvideo.c.
Referenced by ff_MPV_decode_mb().
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Definition at line 1298 of file mpegvideo.c.
Referenced by find_unused_picture().
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Definition at line 2086 of file mpegvideo.c.
Referenced by MPV_decode_mb_internal().
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Definition at line 1345 of file mpegvideo.c.
Referenced by ff_MPV_frame_start().
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Definition at line 67 of file mpegvideo.c.
Referenced by ff_MPV_common_defaults().
enum AVPixelFormat ff_hwaccel_pixfmt_list_420[] |
Definition at line 133 of file mpegvideo.c.
Referenced by get_pixel_format(), and mpeg_get_pixelformat().
const uint8_t ff_mpeg1_dc_scale_table[128] |
Definition at line 73 of file mpegvideo.c.
Referenced by ff_flv_decode_picture_header(), ff_flv_encode_picture_header(), ff_h261_encode_init(), ff_h263_decode_picture_header(), ff_h263_encode_init(), ff_h263_encode_picture_header(), ff_intel_h263_decode_picture_header(), ff_MPV_common_defaults(), ff_msmpeg4_common_init(), ff_rv20_encode_picture_header(), and rv10_decode_packet().
const uint8_t* const ff_mpeg2_dc_scale_table[4] |
Definition at line 121 of file mpegvideo.c.
Referenced by encode_picture(), and ff_mpeg12_common_init().
enum AVPixelFormat ff_pixfmt_list_420[] |
Definition at line 128 of file mpegvideo.c.
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Definition at line 85 of file mpegvideo.c.
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Definition at line 97 of file mpegvideo.c.
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Definition at line 109 of file mpegvideo.c.