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ffmpeg.wasm-core
Commit 80344261 authored by Anton Khirnov's avatar Anton Khirnov
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fraps: cosmetics, reformat

parent 57d11e5e
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Showing with 52 additions and 48 deletions
libavcodec/fraps.c
View file @ 80344261
......@@ -42,7 +42,7 @@
/**
* local variable storage
*/
typedef struct FrapsContext{
typedef struct FrapsContext {
AVCodecContext *avctx;
AVFrame frame;
uint8_t *tmpbuf;
......@@ -61,9 +61,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
FrapsContext * const s = avctx->priv_data;
avctx->coded_frame = &s->frame;
avctx->pix_fmt= AV_PIX_FMT_NONE; /* set in decode_frame */
avctx->pix_fmt = AV_PIX_FMT_NONE; /* set in decode_frame */
s->avctx = avctx;
s->avctx = avctx;
s->tmpbuf = NULL;
ff_dsputil_init(&s->dsp, avctx);
......@@ -75,7 +75,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
* Comparator - our nodes should ascend by count
* but with preserved symbol order
*/
static int huff_cmp(const void *va, const void *vb){
static int huff_cmp(const void *va, const void *vb)
{
const Node *a = va, *b = vb;
return (a->count - b->count)*256 + a->sym - b->sym;
}
......@@ -92,7 +93,7 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
VLC vlc;
Node nodes[512];
for(i = 0; i < 256; i++)
for (i = 0; i < 256; i++)
nodes[i].count = bytestream_get_le32(&src);
size -= 1024;
if ((ret = ff_huff_build_tree(s->avctx, &vlc, 256, nodes, huff_cmp,
......@@ -104,14 +105,16 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
s->dsp.bswap_buf((uint32_t *)s->tmpbuf, (const uint32_t *)src, size >> 2);
init_get_bits(&gb, s->tmpbuf, size * 8);
for(j = 0; j < h; j++){
for(i = 0; i < w*step; i += step){
for (j = 0; j < h; j++) {
for (i = 0; i < w*step; i += step) {
dst[i] = get_vlc2(&gb, vlc.table, 9, 3);
/* lines are stored as deltas between previous lines
* and we need to add 0x80 to the first lines of chroma planes
*/
if(j) dst[i] += dst[i - stride];
else if(Uoff) dst[i] += 0x80;
if (j)
dst[i] += dst[i - stride];
else if (Uoff)
dst[i] += 0x80;
if (get_bits_left(&gb) < 0) {
ff_free_vlc(&vlc);
return AVERROR_INVALIDDATA;
......@@ -127,11 +130,11 @@ static int decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
FrapsContext * const s = avctx->priv_data;
AVFrame *frame = data;
AVFrame * const f = &s->frame;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
AVFrame *frame = data;
AVFrame * const f = &s->frame;
uint32_t header;
unsigned int version,header_size;
unsigned int x, y;
......@@ -141,8 +144,8 @@ static int decode_frame(AVCodecContext *avctx,
int i, j, ret, is_chroma, planes;
enum AVPixelFormat pix_fmt;
header = AV_RL32(buf);
version = header & 0xff;
header = AV_RL32(buf);
version = header & 0xff;
header_size = (header & (1<<30))? 8 : 4; /* bit 30 means pad to 8 bytes */
if (version > 5) {
......@@ -152,9 +155,9 @@ static int decode_frame(AVCodecContext *avctx,
return AVERROR_PATCHWELCOME;
}
buf+=4;
buf += 4;
if (header_size == 8)
buf+=4;
buf += 4;
pix_fmt = version & 1 ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_YUVJ420P;
if (avctx->pix_fmt != pix_fmt && f->data[0]) {
......@@ -162,19 +165,20 @@ static int decode_frame(AVCodecContext *avctx,
}
avctx->pix_fmt = pix_fmt;
switch(version) {
switch (version) {
case 0:
default:
/* Fraps v0 is a reordered YUV420 */
if ( (buf_size != avctx->width*avctx->height*3/2+header_size) &&
(buf_size != header_size) ) {
if ((buf_size != avctx->width * avctx->height * 3 / 2 + header_size) &&
(buf_size != header_size)) {
av_log(avctx, AV_LOG_ERROR,
"Invalid frame length %d (should be %d)\n",
buf_size, avctx->width*avctx->height*3/2+header_size);
buf_size,
avctx->width * avctx->height * 3 / 2 + header_size);
return AVERROR_INVALIDDATA;
}
if (( (avctx->width % 8) != 0) || ( (avctx->height % 2) != 0 )) {
if (((avctx->width % 8) != 0) || ((avctx->height % 2) != 0)) {
av_log(avctx, AV_LOG_ERROR, "Invalid frame size %dx%d\n",
avctx->width, avctx->height);
return AVERROR_INVALIDDATA;
......@@ -189,17 +193,17 @@ static int decode_frame(AVCodecContext *avctx,
return ret;
}
/* bit 31 means same as previous pic */
f->pict_type = (header & (1U<<31))? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
f->pict_type = (header & (1U << 31)) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
f->key_frame = f->pict_type == AV_PICTURE_TYPE_I;
if (f->pict_type == AV_PICTURE_TYPE_I) {
buf32=(const uint32_t*)buf;
for(y=0; y<avctx->height/2; y++){
luma1=(uint32_t*)&f->data[0][ y*2*f->linesize[0] ];
luma2=(uint32_t*)&f->data[0][ (y*2+1)*f->linesize[0] ];
cr=(uint32_t*)&f->data[1][ y*f->linesize[1] ];
cb=(uint32_t*)&f->data[2][ y*f->linesize[2] ];
for(x=0; x<avctx->width; x+=8){
buf32 = (const uint32_t*)buf;
for (y = 0; y < avctx->height / 2; y++) {
luma1 = (uint32_t*)&f->data[0][ y * 2 * f->linesize[0]];
luma2 = (uint32_t*)&f->data[0][(y * 2 + 1) * f->linesize[0]];
cr = (uint32_t*)&f->data[1][ y * f->linesize[1]];
cb = (uint32_t*)&f->data[2][ y * f->linesize[2]];
for (x = 0; x < avctx->width; x += 8) {
*(luma1++) = *(buf32++);
*(luma1++) = *(buf32++);
*(luma2++) = *(buf32++);
......@@ -213,11 +217,11 @@ static int decode_frame(AVCodecContext *avctx,
case 1:
/* Fraps v1 is an upside-down BGR24 */
if ( (buf_size != avctx->width*avctx->height*3+header_size) &&
(buf_size != header_size) ) {
if ((buf_size != avctx->width * avctx->height * 3 + header_size) &&
(buf_size != header_size) ) {
av_log(avctx, AV_LOG_ERROR,
"Invalid frame length %d (should be %d)\n",
buf_size, avctx->width*avctx->height*3+header_size);
buf_size, avctx->width * avctx->height * 3 + header_size);
return AVERROR_INVALIDDATA;
}
......@@ -234,10 +238,10 @@ static int decode_frame(AVCodecContext *avctx,
f->key_frame = f->pict_type == AV_PICTURE_TYPE_I;
if (f->pict_type == AV_PICTURE_TYPE_I) {
for(y=0; y<avctx->height; y++)
memcpy(&f->data[0][ (avctx->height-y)*f->linesize[0] ],
&buf[y*avctx->width*3],
3*avctx->width);
for (y = 0; y<avctx->height; y++)
memcpy(&f->data[0][(avctx->height - y) * f->linesize[0]],
&buf[y * avctx->width * 3],
3 * avctx->width);
}
break;
......@@ -257,26 +261,26 @@ static int decode_frame(AVCodecContext *avctx,
return ret;
}
/* skip frame */
if(buf_size == 8) {
if (buf_size == 8) {
f->pict_type = AV_PICTURE_TYPE_P;
f->key_frame = 0;
break;
}
f->pict_type = AV_PICTURE_TYPE_I;
f->key_frame = 1;
if ((AV_RL32(buf) != FPS_TAG)||(buf_size < (planes*1024 + 24))) {
if ((AV_RL32(buf) != FPS_TAG) || (buf_size < (planes * 1024 + 24))) {
av_log(avctx, AV_LOG_ERROR, "Fraps: error in data stream\n");
return AVERROR_INVALIDDATA;
}
for(i = 0; i < planes; i++) {
for (i = 0; i < planes; i++) {
offs[i] = AV_RL32(buf + 4 + i * 4);
if(offs[i] >= buf_size || (i && offs[i] <= offs[i - 1] + 1024)) {
if (offs[i] >= buf_size || (i && offs[i] <= offs[i - 1] + 1024)) {
av_log(avctx, AV_LOG_ERROR, "Fraps: plane %i offset is out of bounds\n", i);
return AVERROR_INVALIDDATA;
}
}
offs[planes] = buf_size;
for(i = 0; i < planes; i++){
for (i = 0; i < planes; i++) {
is_chroma = !!i;
av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size,
offs[i + 1] - offs[i] - 1024);
......@@ -305,7 +309,7 @@ static int decode_frame(AVCodecContext *avctx,
return ret;
}
/* skip frame */
if(buf_size == 8) {
if (buf_size == 8) {
f->pict_type = AV_PICTURE_TYPE_P;
f->key_frame = 0;
break;
......@@ -316,15 +320,15 @@ static int decode_frame(AVCodecContext *avctx,
av_log(avctx, AV_LOG_ERROR, "Fraps: error in data stream\n");
return AVERROR_INVALIDDATA;
}
for(i = 0; i < planes; i++) {
for (i = 0; i < planes; i++) {
offs[i] = AV_RL32(buf + 4 + i * 4);
if(offs[i] >= buf_size || (i && offs[i] <= offs[i - 1] + 1024)) {
if (offs[i] >= buf_size || (i && offs[i] <= offs[i - 1] + 1024)) {
av_log(avctx, AV_LOG_ERROR, "Fraps: plane %i offset is out of bounds\n", i);
return AVERROR_INVALIDDATA;
}
}
offs[planes] = buf_size;
for(i = 0; i < planes; i++){
for (i = 0; i < planes; i++) {
av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size,
offs[i + 1] - offs[i] - 1024);
if (!s->tmpbuf)
......@@ -337,8 +341,8 @@ static int decode_frame(AVCodecContext *avctx,
}
}
// convert pseudo-YUV into real RGB
for(j = 0; j < avctx->height; j++){
for(i = 0; i < avctx->width; i++){
for (j = 0; j < avctx->height; j++) {
for (i = 0; i < avctx->width; i++) {
f->data[0][0 + i*3 + j*f->linesize[0]] += f->data[0][1 + i*3 + j*f->linesize[0]];
f->data[0][2 + i*3 + j*f->linesize[0]] += f->data[0][1 + i*3 + j*f->linesize[0]];
}
......
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