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avcodec: change number of plane pointers from 4 to 8 at next major bump.

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Add AV_NUM_DATA_POINTERS to simplify the bump transition.
This will allow for supporting more planar audio channels without having to
allocate separate pointer arrays.
This commit is contained in:
Justin Ruggles 2011-11-14 16:07:03 -05:00
parent 9b9815eec4
commit 560f773c7d
7 changed files with 54 additions and 34 deletions
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6
doc/APIchanges
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@ -13,6 +13,12 @@ libavutil: 2011-04-18
API changes, most recent first:
2011-xx-xx - xxxxxxx - lavc 53.24.0
Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
Change AVCodecContext.error[4] to [8] at next major bump.
Add AV_NUM_DATA_POINTERS to simplify the bump transition.
2011-11-23 - bbb46f3 - lavu 51.18.0
Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
av_samples_alloc(), to samplefmt.h.

23
libavcodec/avcodec.h
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@ -927,21 +927,26 @@ typedef struct AVPacket {
* sizeof(AVFrame) must not be used outside libav*.
*/
typedef struct AVFrame {
#if FF_API_DATA_POINTERS
#define AV_NUM_DATA_POINTERS 4
#else
#define AV_NUM_DATA_POINTERS 8
#endif
/**
* pointer to the picture planes.
* This might be different from the first allocated byte
* - encoding:
* - decoding:
*/
uint8_t *data[4];
int linesize[4];
uint8_t *data[AV_NUM_DATA_POINTERS];
int linesize[AV_NUM_DATA_POINTERS];
/**
* pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.
* This isn't used by libavcodec unless the default get/release_buffer() is used.
* - encoding:
* - decoding:
*/
uint8_t *base[4];
uint8_t *base[AV_NUM_DATA_POINTERS];
/**
* 1 -> keyframe, 0-> not
* - encoding: Set by libavcodec.
@ -1065,7 +1070,7 @@ typedef struct AVFrame {
* - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.
* - decoding: unused
*/
uint64_t error[4];
uint64_t error[AV_NUM_DATA_POINTERS];
/**
* type of the buffer (to keep track of who has to deallocate data[*])
@ -1319,7 +1324,7 @@ typedef struct AVCodecContext {
* @param offset offset into the AVFrame.data from which the slice should be read
*/
void (*draw_horiz_band)(struct AVCodecContext *s,
const AVFrame *src, int offset[4],
const AVFrame *src, int offset[AV_NUM_DATA_POINTERS],
int y, int type, int height);
/* audio only */
@ -1867,7 +1872,7 @@ typedef struct AVCodecContext {
* - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
* - decoding: unused
*/
uint64_t error[4];
uint64_t error[AV_NUM_DATA_POINTERS];
/**
* motion estimation comparison function
@ -3175,8 +3180,8 @@ typedef struct AVHWAccel {
* the last component is alpha
*/
typedef struct AVPicture {
uint8_t *data[4];
int linesize[4]; ///< number of bytes per line
uint8_t *data[AV_NUM_DATA_POINTERS];
int linesize[AV_NUM_DATA_POINTERS]; ///< number of bytes per line
} AVPicture;
#define AVPALETTE_SIZE 1024
@ -3794,7 +3799,7 @@ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
* according to avcodec_get_edge_width() before.
*/
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
int linesize_align[4]);
int linesize_align[AV_NUM_DATA_POINTERS]);
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);

7
libavcodec/huffyuv.c
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@ -921,8 +921,8 @@ static int encode_bgr_bitstream(HYuvContext *s, int count){
#if CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER
static void draw_slice(HYuvContext *s, int y){
int h, cy;
int offset[4];
int h, cy, i;
int offset[AV_NUM_DATA_POINTERS];
if(s->avctx->draw_horiz_band==NULL)
return;
@ -939,7 +939,8 @@ static void draw_slice(HYuvContext *s, int y){
offset[0] = s->picture.linesize[0]*y;
offset[1] = s->picture.linesize[1]*cy;
offset[2] = s->picture.linesize[2]*cy;
offset[3] = 0;
for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
emms_c();
s->avctx->draw_horiz_band(s->avctx, &s->picture, offset, y, 3, h);

12
libavcodec/mpegvideo.c
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@ -2329,7 +2329,8 @@ void ff_draw_horiz_band(MpegEncContext *s, int y, int h){
if (s->avctx->draw_horiz_band) {
AVFrame *src;
int offset[4];
int offset[AV_NUM_DATA_POINTERS];
int i;
if(s->pict_type==AV_PICTURE_TYPE_B || s->low_delay || (s->avctx->slice_flags&SLICE_FLAG_CODED_ORDER))
src= (AVFrame*)s->current_picture_ptr;
@ -2339,15 +2340,14 @@ void ff_draw_horiz_band(MpegEncContext *s, int y, int h){
return;
if(s->pict_type==AV_PICTURE_TYPE_B && s->picture_structure == PICT_FRAME && s->out_format != FMT_H264){
offset[0]=
offset[1]=
offset[2]=
offset[3]= 0;
for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
}else{
offset[0]= y * s->linesize;
offset[1]=
offset[2]= (y >> s->chroma_y_shift) * s->uvlinesize;
offset[3]= 0;
for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
}
emms_c();

27
libavcodec/utils.c
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@ -127,7 +127,10 @@ void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
#define INTERNAL_BUFFER_SIZE (32+1)
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]){
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
int linesize_align[AV_NUM_DATA_POINTERS])
{
int i;
int w_align= 1;
int h_align= 1;
@ -209,10 +212,8 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int l
*height+=2; // some of the optimized chroma MC reads one line too much
// which is also done in mpeg decoders with lowres > 0
linesize_align[0] =
linesize_align[1] =
linesize_align[2] =
linesize_align[3] = STRIDE_ALIGN;
for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
linesize_align[i] = STRIDE_ALIGN;
//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
//picture size unneccessarily in some cases. The solution here is not
@ -230,7 +231,7 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int l
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
int linesize_align[4];
int linesize_align[AV_NUM_DATA_POINTERS];
int align;
avcodec_align_dimensions2(s, width, height, linesize_align);
align = FFMAX(linesize_align[0], linesize_align[3]);
@ -275,7 +276,7 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
return -1;
}
for(i=0; i<4; i++){
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
av_freep(&buf->base[i]);
buf->data[i]= NULL;
}
@ -290,7 +291,7 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
int tmpsize;
int unaligned;
AVPicture picture;
int stride_align[4];
int stride_align[AV_NUM_DATA_POINTERS];
const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
@ -343,6 +344,10 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
else
buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (pixel_size*EDGE_WIDTH>>h_shift), stride_align[i]);
}
for (; i < AV_NUM_DATA_POINTERS; i++) {
buf->base[i] = buf->data[i] = NULL;
buf->linesize[i] = 0;
}
if(size[1] && !size[2])
ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
buf->width = s->width;
@ -352,7 +357,7 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
}
pic->type= FF_BUFFER_TYPE_INTERNAL;
for(i=0; i<4; i++){
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
pic->base[i]= buf->base[i];
pic->data[i]= buf->data[i];
pic->linesize[i]= buf->linesize[i];
@ -392,7 +397,7 @@ void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
FFSWAP(InternalBuffer, *buf, *last);
}
for(i=0; i<4; i++){
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
pic->data[i]=NULL;
// pic->base[i]=NULL;
}
@ -426,7 +431,7 @@ int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
* Not internal type and reget_buffer not overridden, emulate cr buffer
*/
temp_pic = *pic;
for(i = 0; i < 4; i++)
for(i = 0; i < AV_NUM_DATA_POINTERS; i++)
pic->data[i] = pic->base[i] = NULL;
pic->opaque = NULL;
/* Allocate new frame */

6
libavcodec/version.h
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@ -21,7 +21,7 @@
#define AVCODEC_VERSION_H
#define LIBAVCODEC_VERSION_MAJOR 53
#define LIBAVCODEC_VERSION_MINOR 23
#define LIBAVCODEC_VERSION_MINOR 24
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
@ -110,6 +110,8 @@
#ifndef FF_API_TIFFENC_COMPLEVEL
#define FF_API_TIFFENC_COMPLEVEL (LIBAVCODEC_VERSION_MAJOR < 54)
#endif
#ifndef FF_API_DATA_POINTERS
#define FF_API_DATA_POINTERS (LIBAVCODEC_VERSION_MAJOR < 54)
#endif
#endif /* AVCODEC_VERSION_H */

7
libavcodec/vp3.c
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@ -1331,8 +1331,8 @@ end:
*/
static void vp3_draw_horiz_band(Vp3DecodeContext *s, int y)
{
int h, cy;
int offset[4];
int h, cy, i;
int offset[AV_NUM_DATA_POINTERS];
if (HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
int y_flipped = s->flipped_image ? s->avctx->height-y : y;
@ -1358,7 +1358,8 @@ static void vp3_draw_horiz_band(Vp3DecodeContext *s, int y)
offset[0] = s->current_frame.linesize[0]*y;
offset[1] = s->current_frame.linesize[1]*cy;
offset[2] = s->current_frame.linesize[2]*cy;
offset[3] = 0;
for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
emms_c();
s->avctx->draw_horiz_band(s->avctx, &s->current_frame, offset, y, 3, h);