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Remove lowres video decoding

Browse Source 
This feature is complex, of questionable utility, and slows down
normal decoding.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2012-04-12 13:55:49 +01:00
parent 95510be8c3
commit 2bcbd98459
34 changed files with 56 additions and 755 deletions
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6
avconv.c
View File

@ -3527,12 +3527,6 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
switch (dec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if (dec->lowres) {
dec->flags |= CODEC_FLAG_EMU_EDGE;
dec->height >>= dec->lowres;
dec->width >>= dec->lowres;
}
ist->resample_height = dec->height;
ist->resample_width = dec->width;
ist->resample_pix_fmt = dec->pix_fmt;

6
avplay.c
View File

@ -244,7 +244,6 @@ static int step = 0;
static int workaround_bugs = 1;
static int fast = 0;
static int genpts = 0;
static int lowres = 0;
static int idct = FF_IDCT_AUTO;
static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
@ -1298,7 +1297,7 @@ static void alloc_picture(void *opaque)
/* SDL allocates a buffer smaller than requested if the video
* overlay hardware is unable to support the requested size. */
fprintf(stderr, "Error: the video system does not support an image\n"
"size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
"size of %dx%d pixels. Try using -vf \"scale=w:h\"\n"
"to reduce the image size.\n", vp->width, vp->height );
do_exit();
}
@ -2185,14 +2184,12 @@ static int stream_component_open(VideoState *is, int stream_index)
avctx->debug_mv = debug_mv;
avctx->debug = debug;
avctx->workaround_bugs = workaround_bugs;
avctx->lowres = lowres;
avctx->idct_algo = idct;
avctx->skip_frame = skip_frame;
avctx->skip_idct = skip_idct;
avctx->skip_loop_filter = skip_loop_filter;
avctx->error_concealment = error_concealment;
if (lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
if (!av_dict_get(opts, "threads", NULL, 0))
@ -2979,7 +2976,6 @@ static const OptionDef options[] = {
{ "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
{ "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
{ "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
{ "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
{ "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
{ "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
{ "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },

2
libavcodec/alpha/dsputil_alpha.c
View File

@ -336,7 +336,7 @@ void ff_dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx)
put_pixels_clamped_axp_p = c->put_pixels_clamped;
add_pixels_clamped_axp_p = c->add_pixels_clamped;
if (!avctx->lowres && avctx->bits_per_raw_sample <= 8 &&
if (avctx->bits_per_raw_sample <= 8 &&
(avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_SIMPLEALPHA)) {
c->idct_put = ff_simple_idct_put_axp;

2
libavcodec/arm/dsputil_init_arm.c
View File

@ -80,7 +80,7 @@ void ff_dsputil_init_arm(DSPContext* c, AVCodecContext *avctx)
ff_put_pixels_clamped = c->put_pixels_clamped;
ff_add_pixels_clamped = c->add_pixels_clamped;
if (!avctx->lowres && avctx->bits_per_raw_sample <= 8) {
if (avctx->bits_per_raw_sample <= 8) {
if(avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_ARM){
c->idct_put = j_rev_dct_arm_put;

2
libavcodec/arm/dsputil_init_armv5te.c
View File

@ -29,7 +29,7 @@ void ff_prefetch_arm(void *mem, int stride, int h);
av_cold void ff_dsputil_init_armv5te(DSPContext *c, AVCodecContext *avctx)
{
if (!avctx->lowres && avctx->bits_per_raw_sample <= 8 &&
if (avctx->bits_per_raw_sample <= 8 &&
(avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_SIMPLEARMV5TE)) {
c->idct_put = ff_simple_idct_put_armv5te;

2
libavcodec/arm/dsputil_init_armv6.c
View File

@ -74,7 +74,7 @@ av_cold void ff_dsputil_init_armv6(DSPContext *c, AVCodecContext *avctx)
{
const int high_bit_depth = avctx->bits_per_raw_sample > 8;
if (!avctx->lowres && avctx->bits_per_raw_sample <= 8 &&
if (avctx->bits_per_raw_sample <= 8 &&
(avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_SIMPLEARMV6)) {
c->idct_put = ff_simple_idct_put_armv6;

2
libavcodec/arm/dsputil_init_neon.c
View File

@ -182,7 +182,7 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx)
{
const int high_bit_depth = avctx->bits_per_raw_sample > 8;
if (!avctx->lowres && avctx->bits_per_raw_sample <= 8) {
if (avctx->bits_per_raw_sample <= 8) {
if (avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_SIMPLENEON) {
c->idct_put = ff_simple_idct_put_neon;

6
libavcodec/avcodec.h
View File

@ -1394,7 +1394,7 @@ typedef struct AVCodecContext {
int width, height;
/**
* Bitstream width / height, may be different from width/height if lowres enabled.
* Bitstream width / height, may be different from width/height.
* - encoding: unused
* - decoding: Set by user before init if known. Codec should override / dynamically change if needed.
*/
@ -2586,7 +2586,7 @@ typedef struct AVCodecContext {
* - encoding: unused
* - decoding: Set by user.
*/
int lowres;
attribute_deprecated int lowres;
/**
* the picture in the bitstream
@ -2847,7 +2847,7 @@ typedef struct AVCodec {
const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
const uint64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
uint8_t max_lowres; ///< maximum value for lowres supported by the decoder
attribute_deprecated uint8_t max_lowres; ///< maximum value for lowres supported by the decoder
const AVClass *priv_class; ///< AVClass for the private context
const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}

60
libavcodec/dsputil.c
View File

@ -2700,37 +2700,6 @@ static void ff_jref_idct_add(uint8_t *dest, int line_size, DCTELEM *block)
ff_add_pixels_clamped_c(block, dest, line_size);
}
static void ff_jref_idct4_put(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct4 (block);
put_pixels_clamped4_c(block, dest, line_size);
}
static void ff_jref_idct4_add(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct4 (block);
add_pixels_clamped4_c(block, dest, line_size);
}
static void ff_jref_idct2_put(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct2 (block);
put_pixels_clamped2_c(block, dest, line_size);
}
static void ff_jref_idct2_add(uint8_t *dest, int line_size, DCTELEM *block)
{
ff_j_rev_dct2 (block);
add_pixels_clamped2_c(block, dest, line_size);
}
static void ff_jref_idct1_put(uint8_t *dest, int line_size, DCTELEM *block)
{
dest[0] = av_clip_uint8((block[0] + 4)>>3);
}
static void ff_jref_idct1_add(uint8_t *dest, int line_size, DCTELEM *block)
{
dest[0] = av_clip_uint8(dest[0] + ((block[0] + 4)>>3));
}
static void just_return(void *mem av_unused, int stride av_unused, int h av_unused) { return; }
/* init static data */
@ -2797,28 +2766,12 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
}
#endif //CONFIG_ENCODERS
if(avctx->lowres==1){
c->idct_put= ff_jref_idct4_put;
c->idct_add= ff_jref_idct4_add;
c->idct = ff_j_rev_dct4;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}else if(avctx->lowres==2){
c->idct_put= ff_jref_idct2_put;
c->idct_add= ff_jref_idct2_add;
c->idct = ff_j_rev_dct2;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}else if(avctx->lowres==3){
c->idct_put= ff_jref_idct1_put;
c->idct_add= ff_jref_idct1_add;
c->idct = ff_j_rev_dct1;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}else{
if (avctx->bits_per_raw_sample == 10) {
c->idct_put = ff_simple_idct_put_10;
c->idct_add = ff_simple_idct_add_10;
c->idct = ff_simple_idct_10;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else {
if (avctx->bits_per_raw_sample == 10) {
c->idct_put = ff_simple_idct_put_10;
c->idct_add = ff_simple_idct_add_10;
c->idct = ff_simple_idct_10;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else {
if(avctx->idct_algo==FF_IDCT_INT){
c->idct_put= ff_jref_idct_put;
c->idct_add= ff_jref_idct_add;
@ -2849,7 +2802,6 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->idct = ff_simple_idct_8;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}
}
}
c->diff_pixels = diff_pixels_c;

3
libavcodec/dsputil.h
View File

@ -46,9 +46,6 @@ void ff_fdct248_islow_8(DCTELEM *data);
void ff_fdct248_islow_10(DCTELEM *data);
void ff_j_rev_dct (DCTELEM *data);
void ff_j_rev_dct4 (DCTELEM *data);
void ff_j_rev_dct2 (DCTELEM *data);
void ff_j_rev_dct1 (DCTELEM *data);
void ff_wmv2_idct_c(DCTELEM *data);
void ff_fdct_mmx(DCTELEM *block);

8
libavcodec/dv.c
View File

@ -311,13 +311,7 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
/* 248DCT setup */
s->fdct[1] = dsp.fdct248;
s->idct_put[1] = ff_simple_idct248_put; // FIXME: need to add it to DSP
if (avctx->lowres){
for (i = 0; i < 64; i++){
int j = ff_zigzag248_direct[i];
s->dv_zigzag[1][i] = dsp.idct_permutation[(j & 7) + (j & 8) * 4 + (j & 48) / 2];
}
}else
memcpy(s->dv_zigzag[1], ff_zigzag248_direct, 64);
memcpy(s->dv_zigzag[1], ff_zigzag248_direct, 64);
avctx->coded_frame = &s->picture;
s->avctx = avctx;

3
libavcodec/dvdec.c
View File

@ -144,7 +144,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
LOCAL_ALIGNED_16(DCTELEM, sblock, [5*DV_MAX_BPM], [64]);
LOCAL_ALIGNED_16(uint8_t, mb_bit_buffer, [ 80 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
LOCAL_ALIGNED_16(uint8_t, vs_bit_buffer, [5*80 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
const int log2_blocksize = 3-s->avctx->lowres;
const int log2_blocksize = 3;
int is_field_mode[5];
assert((((int)mb_bit_buffer) & 7) == 0);
@ -381,6 +381,5 @@ AVCodec ff_dvvideo_decoder = {
.close = dvvideo_close,
.decode = dvvideo_decode_frame,
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_SLICE_THREADS,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
};

2
libavcodec/error_resilience.c
View File

@ -891,7 +891,7 @@ void ff_er_frame_end(MpegEncContext *s)
/* We do not support ER of field pictures yet,
* though it should not crash if enabled. */
if (!s->err_recognition || s->error_count == 0 || s->avctx->lowres ||
if (!s->err_recognition || s->error_count == 0 ||
s->avctx->hwaccel ||
s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU ||
s->picture_structure != PICT_FRAME ||

1
libavcodec/flvdec.c
View File

@ -127,7 +127,6 @@ AVCodec ff_flv_decoder = {
.close = ff_h263_decode_end,
.decode = ff_h263_decode_frame,
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"),
.pix_fmts = ff_pixfmt_list_420,
};

1
libavcodec/h261dec.c
View File

@ -651,6 +651,5 @@ AVCodec ff_h261_decoder = {
.close = h261_decode_end,
.decode = h261_decode_frame,
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("H.261"),
};

3
libavcodec/h263dec.c
View File

@ -149,7 +149,7 @@ static int get_consumed_bytes(MpegEncContext *s, int buf_size){
static int decode_slice(MpegEncContext *s){
const int part_mask= s->partitioned_frame ? (ER_AC_END|ER_AC_ERROR) : 0x7F;
const int mb_size= 16>>s->avctx->lowres;
const int mb_size = 16;
s->last_resync_gb= s->gb;
s->first_slice_line= 1;
@ -745,7 +745,6 @@ AVCodec ff_h263_decoder = {
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
.flush = ff_mpeg_flush,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
.pix_fmts = ff_hwaccel_pixfmt_list_420,
};

1
libavcodec/intrax8.c
View File

@ -716,7 +716,6 @@ av_cold void ff_intrax8_common_end(IntraX8Context * w)
* The parent codec must call MPV_frame_start(), ff_er_frame_start() before calling this function.
* The parent codec must call ff_er_frame_end(), MPV_frame_end() after calling this function.
* This function does not use MPV_decode_mb().
* lowres decoding is theoretically impossible.
* @param w pointer to IntraX8Context
* @param dquant doubled quantizer, it would be odd in case of VC-1 halfpq==1.
* @param quant_offset offset away from zero

213
libavcodec/jrevdct.c
View File

@ -940,216 +940,3 @@ void ff_j_rev_dct(DCTBLOCK data)
dataptr++; /* advance pointer to next column */
}
}
#undef DCTSIZE
#define DCTSIZE 4
#define DCTSTRIDE 8
void ff_j_rev_dct4(DCTBLOCK data)
{
int32_t tmp0, tmp1, tmp2, tmp3;
int32_t tmp10, tmp11, tmp12, tmp13;
int32_t z1;
int32_t d0, d2, d4, d6;
register DCTELEM *dataptr;
int rowctr;
/* Pass 1: process rows. */
/* Note results are scaled up by sqrt(8) compared to a true IDCT; */
/* furthermore, we scale the results by 2**PASS1_BITS. */
data[0] += 4;
dataptr = data;
for (rowctr = DCTSIZE-1; rowctr >= 0; rowctr--) {
/* Due to quantization, we will usually find that many of the input
* coefficients are zero, especially the AC terms. We can exploit this
* by short-circuiting the IDCT calculation for any row in which all
* the AC terms are zero. In that case each output is equal to the
* DC coefficient (with scale factor as needed).
* With typical images and quantization tables, half or more of the
* row DCT calculations can be simplified this way.
*/
register int *idataptr = (int*)dataptr;
d0 = dataptr[0];
d2 = dataptr[1];
d4 = dataptr[2];
d6 = dataptr[3];
if ((d2 | d4 | d6) == 0) {
/* AC terms all zero */
if (d0) {
/* Compute a 32 bit value to assign. */
DCTELEM dcval = (DCTELEM) (d0 << PASS1_BITS);
register int v = (dcval & 0xffff) | ((dcval << 16) & 0xffff0000);
idataptr[0] = v;
idataptr[1] = v;
}
dataptr += DCTSTRIDE; /* advance pointer to next row */
continue;
}
/* Even part: reverse the even part of the forward DCT. */
/* The rotator is sqrt(2)*c(-6). */
if (d6) {
if (d2) {
/* d0 != 0, d2 != 0, d4 != 0, d6 != 0 */
z1 = MULTIPLY(d2 + d6, FIX_0_541196100);
tmp2 = z1 + MULTIPLY(-d6, FIX_1_847759065);
tmp3 = z1 + MULTIPLY(d2, FIX_0_765366865);
tmp0 = (d0 + d4) << CONST_BITS;
tmp1 = (d0 - d4) << CONST_BITS;
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
} else {
/* d0 != 0, d2 == 0, d4 != 0, d6 != 0 */
tmp2 = MULTIPLY(-d6, FIX_1_306562965);
tmp3 = MULTIPLY(d6, FIX_0_541196100);
tmp0 = (d0 + d4) << CONST_BITS;
tmp1 = (d0 - d4) << CONST_BITS;
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
}
} else {
if (d2) {
/* d0 != 0, d2 != 0, d4 != 0, d6 == 0 */
tmp2 = MULTIPLY(d2, FIX_0_541196100);
tmp3 = MULTIPLY(d2, FIX_1_306562965);
tmp0 = (d0 + d4) << CONST_BITS;
tmp1 = (d0 - d4) << CONST_BITS;
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
} else {
/* d0 != 0, d2 == 0, d4 != 0, d6 == 0 */
tmp10 = tmp13 = (d0 + d4) << CONST_BITS;
tmp11 = tmp12 = (d0 - d4) << CONST_BITS;
}
}
/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */
dataptr[0] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS);
dataptr[1] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS);
dataptr[2] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS);
dataptr[3] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS);
dataptr += DCTSTRIDE; /* advance pointer to next row */
}
/* Pass 2: process columns. */
/* Note that we must descale the results by a factor of 8 == 2**3, */
/* and also undo the PASS1_BITS scaling. */
dataptr = data;
for (rowctr = DCTSIZE-1; rowctr >= 0; rowctr--) {
/* Columns of zeroes can be exploited in the same way as we did with rows.
* However, the row calculation has created many nonzero AC terms, so the
* simplification applies less often (typically 5% to 10% of the time).
* On machines with very fast multiplication, it's possible that the
* test takes more time than it's worth. In that case this section
* may be commented out.
*/
d0 = dataptr[DCTSTRIDE*0];
d2 = dataptr[DCTSTRIDE*1];
d4 = dataptr[DCTSTRIDE*2];
d6 = dataptr[DCTSTRIDE*3];
/* Even part: reverse the even part of the forward DCT. */
/* The rotator is sqrt(2)*c(-6). */
if (d6) {
if (d2) {
/* d0 != 0, d2 != 0, d4 != 0, d6 != 0 */
z1 = MULTIPLY(d2 + d6, FIX_0_541196100);
tmp2 = z1 + MULTIPLY(-d6, FIX_1_847759065);
tmp3 = z1 + MULTIPLY(d2, FIX_0_765366865);
tmp0 = (d0 + d4) << CONST_BITS;
tmp1 = (d0 - d4) << CONST_BITS;
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
} else {
/* d0 != 0, d2 == 0, d4 != 0, d6 != 0 */
tmp2 = MULTIPLY(-d6, FIX_1_306562965);
tmp3 = MULTIPLY(d6, FIX_0_541196100);
tmp0 = (d0 + d4) << CONST_BITS;
tmp1 = (d0 - d4) << CONST_BITS;
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
}
} else {
if (d2) {
/* d0 != 0, d2 != 0, d4 != 0, d6 == 0 */
tmp2 = MULTIPLY(d2, FIX_0_541196100);
tmp3 = MULTIPLY(d2, FIX_1_306562965);
tmp0 = (d0 + d4) << CONST_BITS;
tmp1 = (d0 - d4) << CONST_BITS;
tmp10 = tmp0 + tmp3;
tmp13 = tmp0 - tmp3;
tmp11 = tmp1 + tmp2;
tmp12 = tmp1 - tmp2;
} else {
/* d0 != 0, d2 == 0, d4 != 0, d6 == 0 */
tmp10 = tmp13 = (d0 + d4) << CONST_BITS;
tmp11 = tmp12 = (d0 - d4) << CONST_BITS;
}
}
/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */
dataptr[DCTSTRIDE*0] = tmp10 >> (CONST_BITS+PASS1_BITS+3);
dataptr[DCTSTRIDE*1] = tmp11 >> (CONST_BITS+PASS1_BITS+3);
dataptr[DCTSTRIDE*2] = tmp12 >> (CONST_BITS+PASS1_BITS+3);
dataptr[DCTSTRIDE*3] = tmp13 >> (CONST_BITS+PASS1_BITS+3);
dataptr++; /* advance pointer to next column */
}
}
void ff_j_rev_dct2(DCTBLOCK data){
int d00, d01, d10, d11;
data[0] += 4;
d00 = data[0+0*DCTSTRIDE] + data[1+0*DCTSTRIDE];
d01 = data[0+0*DCTSTRIDE] - data[1+0*DCTSTRIDE];
d10 = data[0+1*DCTSTRIDE] + data[1+1*DCTSTRIDE];
d11 = data[0+1*DCTSTRIDE] - data[1+1*DCTSTRIDE];
data[0+0*DCTSTRIDE]= (d00 + d10)>>3;
data[1+0*DCTSTRIDE]= (d01 + d11)>>3;
data[0+1*DCTSTRIDE]= (d00 - d10)>>3;
data[1+1*DCTSTRIDE]= (d01 - d11)>>3;
}
void ff_j_rev_dct1(DCTBLOCK data){
data[0] = (data[0] + 4)>>3;
}
#undef FIX
#undef CONST_BITS

2
libavcodec/libopenjpeg.c
View File

@ -158,7 +158,6 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
ff_thread_finish_setup(avctx);
ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
ctx->dec_params.cp_reduce = avctx->lowres;
// Tie decoder with decoding parameters
opj_setup_decoder(dec, &ctx->dec_params);
stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size);
@ -219,7 +218,6 @@ AVCodec ff_libopenjpeg_decoder = {
.close = libopenjpeg_decode_close,
.decode = libopenjpeg_decode_frame,
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
.max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("OpenJPEG based JPEG 2000 decoder"),
.init_thread_copy = ONLY_IF_THREADS_ENABLED(libopenjpeg_decode_init_thread_copy),
};

1
libavcodec/mjpegbdec.c
View File

@ -161,6 +161,5 @@ AVCodec ff_mjpegb_decoder = {
.close = ff_mjpeg_decode_end,
.decode = mjpegb_decode_frame,
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Apple MJPEG-B"),
};

33
libavcodec/mjpegdec.c
View File

@ -796,21 +796,6 @@ static int ljpeg_decode_yuv_scan(MJpegDecodeContext *s, int predictor,
return 0;
}
static av_always_inline void mjpeg_copy_block(uint8_t *dst, const uint8_t *src,
int linesize, int lowres)
{
switch (lowres) {
case 0: copy_block8(dst, src, linesize, linesize, 8);
break;
case 1: copy_block4(dst, src, linesize, linesize, 4);
break;
case 2: copy_block2(dst, src, linesize, linesize, 2);
break;
case 3: *dst = *src;
break;
}
}
static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah,
int Al, const uint8_t *mb_bitmask,
const AVFrame *reference)
@ -869,16 +854,16 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah,
x = 0;
y = 0;
for (j = 0; j < n; j++) {
block_offset = (((linesize[c] * (v * mb_y + y) * 8) +
(h * mb_x + x) * 8) >> s->avctx->lowres);
block_offset = ((linesize[c] * (v * mb_y + y) * 8) +
(h * mb_x + x) * 8);
if (s->interlaced && s->bottom_field)
block_offset += linesize[c] >> 1;
ptr = data[c] + block_offset;
if (!s->progressive) {
if (copy_mb)
mjpeg_copy_block(ptr, reference_data[c] + block_offset,
linesize[c], s->avctx->lowres);
copy_block8(ptr, reference_data[c] + block_offset,
linesize[c], linesize[c], 8);
else {
s->dsp.clear_block(s->block);
if (decode_block(s, s->block, i,
@ -968,7 +953,7 @@ static int mjpeg_decode_scan_progressive_ac(MJpegDecodeContext *s, int ss,
}
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
int block_offset = (mb_y * linesize * 8 >> s->avctx->lowres);
int block_offset = mb_y * linesize * 8;
uint8_t *ptr = data + block_offset;
int block_idx = mb_y * s->block_stride[c];
DCTELEM (*block)[64] = &s->blocks[c][block_idx];
@ -993,11 +978,11 @@ static int mjpeg_decode_scan_progressive_ac(MJpegDecodeContext *s, int ss,
if (last_scan) {
if (copy_mb) {
mjpeg_copy_block(ptr, reference_data + block_offset,
linesize, s->avctx->lowres);
copy_block8(ptr, reference_data + block_offset,
linesize, linesize, 8);
} else {
s->dsp.idct_put(ptr, linesize, *block);
ptr += 8 >> s->avctx->lowres;
ptr += 8;
}
}
}
@ -1667,7 +1652,6 @@ AVCodec ff_mjpeg_decoder = {
.close = ff_mjpeg_decode_end,
.decode = ff_mjpeg_decode_frame,
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MJPEG (Motion JPEG)"),
.priv_class = &mjpegdec_class,
};
@ -1681,6 +1665,5 @@ AVCodec ff_thp_decoder = {
.close = ff_mjpeg_decode_end,
.decode = ff_mjpeg_decode_frame,
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Nintendo Gamecube THP video"),
};

11
libavcodec/mpeg12.c
View File

@ -1631,7 +1631,6 @@ static int mpeg_decode_slice(MpegEncContext *s, int mb_y,
const uint8_t **buf, int buf_size)
{
AVCodecContext *avctx = s->avctx;
const int lowres = s->avctx->lowres;
const int field_pic = s->picture_structure != PICT_FRAME;
s->resync_mb_x =
@ -1752,14 +1751,14 @@ static int mpeg_decode_slice(MpegEncContext *s, int mb_y,
}
}
s->dest[0] += 16 >> lowres;
s->dest[1] +=(16 >> lowres) >> s->chroma_x_shift;
s->dest[2] +=(16 >> lowres) >> s->chroma_x_shift;
s->dest[0] += 16;
s->dest[1] += 16 >> s->chroma_x_shift;
s->dest[2] += 16 >> s->chroma_x_shift;
ff_MPV_decode_mb(s, s->block);
if (++s->mb_x >= s->mb_width) {
const int mb_size = 16 >> s->avctx->lowres;
const int mb_size = 16;
ff_draw_horiz_band(s, mb_size*(s->mb_y >> field_pic), mb_size);
ff_MPV_report_decode_progress(s);
@ -2508,7 +2507,6 @@ AVCodec ff_mpeg1video_decoder = {
CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY |
CODEC_CAP_SLICE_THREADS,
.flush = flush,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-1 video"),
.update_thread_context = ONLY_IF_THREADS_ENABLED(mpeg_decode_update_thread_context)
};
@ -2525,7 +2523,6 @@ AVCodec ff_mpeg2video_decoder = {
CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY |
CODEC_CAP_SLICE_THREADS,
.flush = flush,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video"),
.profiles = NULL_IF_CONFIG_SMALL(mpeg2_video_profiles),
};

1
libavcodec/mpeg4videodec.c
View File

@ -2266,7 +2266,6 @@ AVCodec ff_mpeg4_decoder = {
CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY |
CODEC_CAP_FRAME_THREADS,
.flush = ff_mpeg_flush,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
.pix_fmts = ff_hwaccel_pixfmt_list_420,
.profiles = NULL_IF_CONFIG_SMALL(mpeg4_video_profiles),

408
libavcodec/mpegvideo.c
View File

@ -1815,364 +1815,6 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict)
}
}
static inline int hpel_motion_lowres(MpegEncContext *s,
uint8_t *dest, uint8_t *src,
int field_based, int field_select,
int src_x, int src_y,
int width, int height, int stride,
int h_edge_pos, int v_edge_pos,
int w, int h, h264_chroma_mc_func *pix_op,
int motion_x, int motion_y)
{
const int lowres = s->avctx->lowres;
const int op_index = FFMIN(lowres, 2);
const int s_mask = (2 << lowres) - 1;
int emu = 0;
int sx, sy;
if (s->quarter_sample) {
motion_x /= 2;
motion_y /= 2;
}
sx = motion_x & s_mask;
sy = motion_y & s_mask;
src_x += motion_x >> lowres + 1;
src_y += motion_y >> lowres + 1;
src += src_y * stride + src_x;
if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
(unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
s->dsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w + 1,
(h + 1) << field_based, src_x,
src_y << field_based,
h_edge_pos,
v_edge_pos);
src = s->edge_emu_buffer;
emu = 1;
}
sx = (sx << 2) >> lowres;
sy = (sy << 2) >> lowres;
if (field_select)
src += s->linesize;
pix_op[op_index](dest, src, stride, h, sx, sy);
return emu;
}
/* apply one mpeg motion vector to the three components */
static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
uint8_t *dest_y,
uint8_t *dest_cb,
uint8_t *dest_cr,
int field_based,
int bottom_field,
int field_select,
uint8_t **ref_picture,
h264_chroma_mc_func *pix_op,
int motion_x, int motion_y,
int h, int mb_y)
{
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy,
uvsx, uvsy;
const int lowres = s->avctx->lowres;
const int op_index = FFMIN(lowres, 2);
const int block_s = 8>>lowres;
const int s_mask = (2 << lowres) - 1;
const int h_edge_pos = s->h_edge_pos >> lowres;
const int v_edge_pos = s->v_edge_pos >> lowres;
linesize = s->current_picture.f.linesize[0] << field_based;
uvlinesize = s->current_picture.f.linesize[1] << field_based;
// FIXME obviously not perfect but qpel will not work in lowres anyway
if (s->quarter_sample) {
motion_x /= 2;
motion_y /= 2;
}
if (field_based) {
motion_y += (bottom_field - field_select) * (1 << lowres - 1);
}
sx = motion_x & s_mask;
sy = motion_y & s_mask;
src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
if (s->out_format == FMT_H263) {
uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
uvsrc_x = src_x >> 1;
uvsrc_y = src_y >> 1;
} else if (s->out_format == FMT_H261) {
// even chroma mv's are full pel in H261
mx = motion_x / 4;
my = motion_y / 4;
uvsx = (2 * mx) & s_mask;
uvsy = (2 * my) & s_mask;
uvsrc_x = s->mb_x * block_s + (mx >> lowres);
uvsrc_y = mb_y * block_s + (my >> lowres);
} else {
mx = motion_x / 2;
my = motion_y / 2;
uvsx = mx & s_mask;
uvsy = my & s_mask;
uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
}
ptr_y = ref_picture[0] + src_y * linesize + src_x;
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) ||
(unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
s->linesize, 17, 17 + field_based,
src_x, src_y << field_based, h_edge_pos,
v_edge_pos);
ptr_y = s->edge_emu_buffer;
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
s->dsp.emulated_edge_mc(uvbuf , ptr_cb, s->uvlinesize, 9,
9 + field_based,
uvsrc_x, uvsrc_y << field_based,
h_edge_pos >> 1, v_edge_pos >> 1);
s->dsp.emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize, 9,
9 + field_based,
uvsrc_x, uvsrc_y << field_based,
h_edge_pos >> 1, v_edge_pos >> 1);
ptr_cb = uvbuf;
ptr_cr = uvbuf + 16;
}
}
// FIXME use this for field pix too instead of the obnoxious hack which changes picture.f.data
if (bottom_field) {
dest_y += s->linesize;
dest_cb += s->uvlinesize;
dest_cr += s->uvlinesize;
}
if (field_select) {
ptr_y += s->linesize;
ptr_cb += s->uvlinesize;
ptr_cr += s->uvlinesize;
}
sx = (sx << 2) >> lowres;
sy = (sy << 2) >> lowres;
pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
uvsx = (uvsx << 2) >> lowres;
uvsy = (uvsy << 2) >> lowres;
pix_op[op_index](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift,
uvsx, uvsy);
pix_op[op_index](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift,
uvsx, uvsy);
}
// FIXME h261 lowres loop filter
}
static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
uint8_t *dest_cb, uint8_t *dest_cr,
uint8_t **ref_picture,
h264_chroma_mc_func * pix_op,
int mx, int my)
{
const int lowres = s->avctx->lowres;
const int op_index = FFMIN(lowres, 2);
const int block_s = 8 >> lowres;
const int s_mask = (2 << lowres) - 1;
const int h_edge_pos = s->h_edge_pos >> lowres + 1;
const int v_edge_pos = s->v_edge_pos >> lowres + 1;
int emu = 0, src_x, src_y, offset, sx, sy;
uint8_t *ptr;
if (s->quarter_sample) {
mx /= 2;
my /= 2;
}
/* In case of 8X8, we construct a single chroma motion vector
with a special rounding */
mx = ff_h263_round_chroma(mx);
my = ff_h263_round_chroma(my);
sx = mx & s_mask;
sy = my & s_mask;
src_x = s->mb_x * block_s + (mx >> lowres + 1);
src_y = s->mb_y * block_s + (my >> lowres + 1);
offset = src_y * s->uvlinesize + src_x;
ptr = ref_picture[1] + offset;
if (s->flags & CODEC_FLAG_EMU_EDGE) {
if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
(unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
9, 9, src_x, src_y, h_edge_pos, v_edge_pos);
ptr = s->edge_emu_buffer;
emu = 1;
}
}
sx = (sx << 2) >> lowres;
sy = (sy << 2) >> lowres;
pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
ptr = ref_picture[2] + offset;
if (emu) {
s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9,
src_x, src_y, h_edge_pos, v_edge_pos);
ptr = s->edge_emu_buffer;
}
pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
}
/**
* motion compensation of a single macroblock
* @param s context
* @param dest_y luma destination pointer
* @param dest_cb chroma cb/u destination pointer
* @param dest_cr chroma cr/v destination pointer
* @param dir direction (0->forward, 1->backward)
* @param ref_picture array[3] of pointers to the 3 planes of the reference picture
* @param 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
*/
static inline void MPV_motion_lowres(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb,
uint8_t *dest_cr,
int dir, uint8_t **ref_picture,
h264_chroma_mc_func *pix_op)
{
int mx, my;
int mb_x, mb_y, i;
const int lowres = s->avctx->lowres;
const int block_s = 8 >>lowres;
mb_x = s->mb_x;
mb_y = s->mb_y;
switch (s->mv_type) {
case MV_TYPE_16X16:
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
0, 0, 0,
ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1],
2 * block_s, mb_y);
break;
case MV_TYPE_8X8:
mx = 0;
my = 0;
for (i = 0; i < 4; i++) {
hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
s->linesize) * block_s,
ref_picture[0], 0, 0,
(2 * mb_x + (i & 1)) * block_s,
(2 * mb_y + (i >> 1)) * block_s,
s->width, s->height, s->linesize,
s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
block_s, block_s, pix_op,
s->mv[dir][i][0], s->mv[dir][i][1]);
mx += s->mv[dir][i][0];
my += s->mv[dir][i][1];
}
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
pix_op, mx, my);
break;
case MV_TYPE_FIELD:
if (s->picture_structure == PICT_FRAME) {
/* top field */
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1, 0, s->field_select[dir][0],
ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1],
block_s, mb_y);
/* bottom field */
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1, 1, s->field_select[dir][1],
ref_picture, pix_op,
s->mv[dir][1][0], s->mv[dir][1][1],
block_s, mb_y);
} else {
if (s->picture_structure != s->field_select[dir][0] + 1 &&
s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
ref_picture = s->current_picture_ptr->f.data;
}
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
0, 0, s->field_select[dir][0],
ref_picture, pix_op,
s->mv[dir][0][0],
s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
}
break;
case MV_TYPE_16X8:
for (i = 0; i < 2; i++) {
uint8_t **ref2picture;
if (s->picture_structure == s->field_select[dir][i] + 1 ||
s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
ref2picture = ref_picture;
} else {
ref2picture = s->current_picture_ptr->f.data;
}
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
0, 0, s->field_select[dir][i],
ref2picture, pix_op,
s->mv[dir][i][0], s->mv[dir][i][1] +
2 * block_s * i, block_s, mb_y >> 1);
dest_y += 2 * block_s * s->linesize;
dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
}
break;
case MV_TYPE_DMV:
if (s->picture_structure == PICT_FRAME) {
for (i = 0; i < 2; i++) {
int j;
for (j = 0; j < 2; j++) {
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1, j, j ^ i,
ref_picture, pix_op,
s->mv[dir][2 * i + j][0],
s->mv[dir][2 * i + j][1],
block_s, mb_y);
}
pix_op = s->dsp.avg_h264_chroma_pixels_tab;
}
} else {
for (i = 0; i < 2; i++) {
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
0, 0, s->picture_structure != i + 1,
ref_picture, pix_op,
s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2 * block_s, mb_y >> 1);
// after put we make avg of the same block
pix_op = s->dsp.avg_h264_chroma_pixels_tab;
// opposite parity is always in the same
// frame if this is second field
if (!s->first_field) {
ref_picture = s->current_picture_ptr->f.data;
}
}
}
break;
default:
assert(0);
}
}
/**
* find the lowest MB row referenced in the MVs
*/
@ -2282,7 +1924,7 @@ void ff_clean_intra_table_entries(MpegEncContext *s)
*/
static av_always_inline
void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64],
int lowres_flag, int is_mpeg12)
int is_mpeg12)
{
const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){
@ -2327,8 +1969,8 @@ void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64],
qpel_mc_func (*op_qpix)[16];
const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
const int uvlinesize = s->current_picture.f.linesize[1];
const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band;
const int block_size = 8;
/* avoid copy if macroblock skipped in last frame too */
/* skip only during decoding as we might trash the buffers during encoding a bit */
@ -2377,31 +2019,19 @@ void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64],
}
}
if(lowres_flag){
h264_chroma_mc_func *op_pix = s->dsp.put_h264_chroma_pixels_tab;
if (s->mv_dir & MV_DIR_FORWARD) {
MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix);
op_pix = s->dsp.avg_h264_chroma_pixels_tab;
}
if (s->mv_dir & MV_DIR_BACKWARD) {
MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix);
}
op_qpix= s->me.qpel_put;
if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
op_pix = s->dsp.put_pixels_tab;
}else{
op_qpix= s->me.qpel_put;
if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
op_pix = s->dsp.put_pixels_tab;
}else{
op_pix = s->dsp.put_no_rnd_pixels_tab;
}
if (s->mv_dir & MV_DIR_FORWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
op_pix = s->dsp.avg_pixels_tab;
op_qpix= s->me.qpel_avg;
}
if (s->mv_dir & MV_DIR_BACKWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
}
op_pix = s->dsp.put_no_rnd_pixels_tab;
}
if (s->mv_dir & MV_DIR_FORWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
op_pix = s->dsp.avg_pixels_tab;
op_qpix= s->me.qpel_avg;
}
if (s->mv_dir & MV_DIR_BACKWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
}
}
@ -2527,12 +2157,10 @@ skip_idct:
void ff_MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]){
#if !CONFIG_SMALL
if(s->out_format == FMT_MPEG1) {
if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1);
else MPV_decode_mb_internal(s, block, 0, 1);
MPV_decode_mb_internal(s, block, 1);
} else
#endif
if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0);
else MPV_decode_mb_internal(s, block, 0, 0);
MPV_decode_mb_internal(s, block, 0);
}
/**
@ -2607,7 +2235,7 @@ void ff_draw_horiz_band(MpegEncContext *s, int y, int h){
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
const int uvlinesize = s->current_picture.f.linesize[1];
const int mb_size= 4 - s->avctx->lowres;
const int mb_size= 4;
s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;

2
libavcodec/mpegvideo.h
View File

@ -785,7 +785,7 @@ extern const enum PixelFormat ff_pixfmt_list_420[];
extern const enum PixelFormat ff_hwaccel_pixfmt_list_420[];
static inline void ff_update_block_index(MpegEncContext *s){
const int block_size= 8>>s->avctx->lowres;
const int block_size = 8;
s->block_index[0]+=2;
s->block_index[1]+=2;

4
libavcodec/msmpeg4.c
View File

@ -1216,7 +1216,6 @@ AVCodec ff_msmpeg4v1_decoder = {
.close = ff_h263_decode_end,
.decode = ff_h263_decode_frame,
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
.pix_fmts = ff_pixfmt_list_420,
};
@ -1230,7 +1229,6 @@ AVCodec ff_msmpeg4v2_decoder = {
.close = ff_h263_decode_end,
.decode = ff_h263_decode_frame,
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
.pix_fmts = ff_pixfmt_list_420,
};
@ -1244,7 +1242,6 @@ AVCodec ff_msmpeg4v3_decoder = {
.close = ff_h263_decode_end,
.decode = ff_h263_decode_frame,
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
.pix_fmts = ff_pixfmt_list_420,
};
@ -1258,7 +1255,6 @@ AVCodec ff_wmv1_decoder = {
.close = ff_h263_decode_end,
.decode = ff_h263_decode_frame,
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
.pix_fmts = ff_pixfmt_list_420,
};

1
libavcodec/mxpegdec.c
View File

@ -338,5 +338,4 @@ AVCodec ff_mxpeg_decoder = {
.close = mxpeg_decode_end,
.decode = mxpeg_decode_frame,
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
};

1
libavcodec/options_table.h
View File

@ -318,7 +318,6 @@ static const AVOption options[]={
{"dts_hd_ma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_HD_MA }, INT_MIN, INT_MAX, A|E, "profile"},
{"level", NULL, OFFSET(level), AV_OPT_TYPE_INT, {.dbl = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
{"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, V|A|D},
{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},

2
libavcodec/ppc/dsputil_ppc.c
View File

@ -179,7 +179,7 @@ void ff_dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
}
#endif //CONFIG_ENCODERS
if (avctx->lowres == 0 && avctx->bits_per_raw_sample <= 8) {
if (avctx->bits_per_raw_sample <= 8) {
if ((avctx->idct_algo == FF_IDCT_AUTO) ||
(avctx->idct_algo == FF_IDCT_ALTIVEC)) {
c->idct_put = ff_idct_put_altivec;

5
libavcodec/rv10.c
View File

@ -409,8 +409,7 @@ av_log(s->avctx, AV_LOG_DEBUG, "\n");*/
// s->obmc=1;
// s->umvplus=1;
s->modified_quant=1;
if(!s->avctx->lowres)
s->loop_filter=1;
s->loop_filter=1;
if(s->avctx->debug & FF_DEBUG_PICT_INFO){
av_log(s->avctx, AV_LOG_INFO, "num:%5d x:%2d y:%2d type:%d qscale:%2d rnd:%d\n",
@ -727,7 +726,6 @@ AVCodec ff_rv10_decoder = {
.close = rv10_decode_end,
.decode = rv10_decode_frame,
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
.pix_fmts = ff_pixfmt_list_420,
};
@ -742,7 +740,6 @@ AVCodec ff_rv20_decoder = {
.decode = rv10_decode_frame,
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
.flush = ff_mpeg_flush,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
.pix_fmts = ff_pixfmt_list_420,
};

1
libavcodec/sp5xdec.c
View File

@ -102,7 +102,6 @@ AVCodec ff_sp5x_decoder = {
.close = ff_mjpeg_decode_end,
.decode = sp5x_decode_frame,
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Sunplus JPEG (SP5X)"),
};

13
libavcodec/utils.c
View File

@ -143,8 +143,8 @@ unsigned avcodec_get_edge_width(void)
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
s->coded_width = width;
s->coded_height= height;
s->width = -((-width )>>s->lowres);
s->height= -((-height)>>s->lowres);
s->width = width;
s->height = height;
}
#define INTERNAL_BUFFER_SIZE (32+1)
@ -228,9 +228,8 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
*width = FFALIGN(*width , w_align);
*height= FFALIGN(*height, h_align);
if(s->codec_id == CODEC_ID_H264 || s->lowres)
if (s->codec_id == CODEC_ID_H264)
*height+=2; // some of the optimized chroma MC reads one line too much
// which is also done in mpeg decoders with lowres > 0
for (i = 0; i < 4; i++)
linesize_align[i] = STRIDE_ALIGN;
@ -741,12 +740,6 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVD
if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
avctx->thread_count = 1;
if (avctx->codec->max_lowres < avctx->lowres) {
av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
avctx->codec->max_lowres);
ret = AVERROR(EINVAL);
goto free_and_end;
}
if (av_codec_is_encoder(avctx->codec)) {
int i;
if (avctx->codec->sample_fmts) {

1
libavcodec/wmv2dec.c
View File

@ -479,7 +479,6 @@ AVCodec ff_wmv2_decoder = {
.close = wmv2_decode_end,
.decode = ff_h263_decode_frame,
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 8"),
.pix_fmts = ff_pixfmt_list_420,
};

2
libavcodec/x86/dsputil_mmx.c
View File

@ -3121,7 +3121,7 @@ void ff_dsputil_init_mmx(DSPContext *c, AVCodecContext *avctx)
if (mm_flags & AV_CPU_FLAG_MMX) {
const int idct_algo = avctx->idct_algo;
if (avctx->lowres == 0 && avctx->bits_per_raw_sample <= 8) {
if (avctx->bits_per_raw_sample <= 8) {
if (idct_algo == FF_IDCT_AUTO || idct_algo == FF_IDCT_SIMPLEMMX) {
c->idct_put = ff_simple_idct_put_mmx;
c->idct_add = ff_simple_idct_add_mmx;