Commit 3788a3c0 authored by Michael Niedermayer's avatar Michael Niedermayer

Merge remote branch 'qatar/master'

* qatar/master:
  graphparser: add a NULL check on the argument passed to strstr
  setdar: prefer "sar" over "par" in log info message
  fade: fix draw_slice() check on fade->factor value
  fade: make draw_slice() chroma check against planes 1 and 2
  win32: include the correct header in cmdutils.c
  ac3: fix memleak in fixed-point encoder
  flashsv: Return more meaningful error values.
  flashsv: Employ explicit AVCodec struct initializers.
  read AVI palette from the end of extradata
  cosmetics: K&R coding style and more whitespace for Flash Screen Video
Merged-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parents 05815b35 f80b381b
......@@ -154,6 +154,7 @@ static const OptionDef* find_option(const OptionDef *po, const char *name){
}
#if defined(_WIN32) && !defined(__MINGW32CE__)
#include <windows.h>
/* Will be leaked on exit */
static char** win32_argv_utf8 = NULL;
static int win32_argc = 0;
......
......@@ -36,7 +36,7 @@
*/
static av_cold void mdct_end(AC3MDCTContext *mdct)
{
ff_fft_end(&mdct->fft);
ff_mdct_end(&mdct->fft);
}
......
......@@ -49,32 +49,30 @@
#include <stdio.h>
#include <stdlib.h>
#include <zlib.h>
#include "avcodec.h"
#include "get_bits.h"
#include <zlib.h>
typedef struct FlashSVContext {
AVCodecContext *avctx;
AVFrame frame;
int image_width, image_height;
int block_width, block_height;
uint8_t* tmpblock;
int block_size;
z_stream zstream;
AVFrame frame;
int image_width, image_height;
int block_width, block_height;
uint8_t *tmpblock;
int block_size;
z_stream zstream;
} FlashSVContext;
static void copy_region(uint8_t *sptr, uint8_t *dptr,
int dx, int dy, int h, int w, int stride)
int dx, int dy, int h, int w, int stride)
{
int i;
for (i = dx+h; i > dx; i--)
{
memcpy(dptr+(i*stride)+dy*3, sptr, w*3);
sptr += w*3;
for (i = dx + h; i > dx; i--) {
memcpy(dptr + (i * stride) + dy * 3, sptr, w * 3);
sptr += w * 3;
}
}
......@@ -84,9 +82,9 @@ static av_cold int flashsv_decode_init(AVCodecContext *avctx)
FlashSVContext *s = avctx->priv_data;
int zret; // Zlib return code
s->avctx = avctx;
s->avctx = avctx;
s->zstream.zalloc = Z_NULL;
s->zstream.zfree = Z_NULL;
s->zstream.zfree = Z_NULL;
s->zstream.opaque = Z_NULL;
zret = inflateInit(&(s->zstream));
if (zret != Z_OK) {
......@@ -100,13 +98,12 @@ static av_cold int flashsv_decode_init(AVCodecContext *avctx)
}
static int flashsv_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
AVPacket *avpkt)
static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
int *data_size, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
FlashSVContext *s = avctx->priv_data;
int buf_size = avpkt->size;
FlashSVContext *s = avctx->priv_data;
int h_blocks, v_blocks, h_part, v_part, i, j;
GetBitContext gb;
......@@ -119,66 +116,64 @@ static int flashsv_decode_frame(AVCodecContext *avctx,
init_get_bits(&gb, buf, buf_size * 8);
/* start to parse the bitstream */
s->block_width = 16* (get_bits(&gb, 4)+1);
s->image_width = get_bits(&gb,12);
s->block_height= 16* (get_bits(&gb, 4)+1);
s->image_height= get_bits(&gb,12);
s->block_width = 16 * (get_bits(&gb, 4) + 1);
s->image_width = get_bits(&gb, 12);
s->block_height = 16 * (get_bits(&gb, 4) + 1);
s->image_height = get_bits(&gb, 12);
/* calculate amount of blocks and the size of the border blocks */
h_blocks = s->image_width / s->block_width;
h_part = s->image_width % s->block_width;
h_blocks = s->image_width / s->block_width;
h_part = s->image_width % s->block_width;
v_blocks = s->image_height / s->block_height;
v_part = s->image_height % s->block_height;
v_part = s->image_height % s->block_height;
/* the block size could change between frames, make sure the buffer
* is large enough, if not, get a larger one */
if(s->block_size < s->block_width*s->block_height) {
if (s->block_size < s->block_width * s->block_height) {
av_free(s->tmpblock);
if ((s->tmpblock = av_malloc(3*s->block_width*s->block_height)) == NULL) {
if ((s->tmpblock = av_malloc(3 * s->block_width * s->block_height)) == NULL) {
av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n");
return -1;
return AVERROR(ENOMEM);
}
}
s->block_size = s->block_width*s->block_height;
s->block_size = s->block_width * s->block_height;
/* init the image size once */
if((avctx->width==0) && (avctx->height==0)){
avctx->width = s->image_width;
if ((avctx->width == 0) && (avctx->height == 0)) {
avctx->width = s->image_width;
avctx->height = s->image_height;
}
/* check for changes of image width and image height */
if ((avctx->width != s->image_width) || (avctx->height != s->image_height)) {
av_log(avctx, AV_LOG_ERROR, "Frame width or height differs from first frames!\n");
av_log(avctx, AV_LOG_ERROR, "fh = %d, fv %d vs ch = %d, cv = %d\n",avctx->height,
avctx->width,s->image_height,s->image_width);
av_log(avctx, AV_LOG_ERROR, "fh = %d, fv %d vs ch = %d, cv = %d\n", avctx->height,
avctx->width,s->image_height, s->image_width);
return -1;
}
av_log(avctx, AV_LOG_DEBUG, "image: %dx%d block: %dx%d num: %dx%d part: %dx%d\n",
s->image_width, s->image_height, s->block_width, s->block_height,
h_blocks, v_blocks, h_part, v_part);
s->image_width, s->image_height, s->block_width, s->block_height,
h_blocks, v_blocks, h_part, v_part);
s->frame.reference = 1;
s->frame.reference = 1;
s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
if(avctx->reget_buffer(avctx, &s->frame) < 0){
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return -1;
if (avctx->reget_buffer(avctx, &s->frame) < 0) {
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return -1;
}
/* loop over all block columns */
for (j = 0; j < v_blocks + (v_part?1:0); j++)
{
for (j = 0; j < v_blocks + (v_part ? 1 : 0); j++) {
int hp = j*s->block_height; // horiz position in frame
int hs = (j<v_blocks)?s->block_height:v_part; // size of block
int hp = j * s->block_height; // horiz position in frame
int hs = (j < v_blocks) ? s->block_height : v_part; // size of block
/* loop over all block rows */
for (i = 0; i < h_blocks + (h_part?1:0); i++)
{
int wp = i*s->block_width; // vert position in frame
int ws = (i<h_blocks)?s->block_width:h_part; // size of block
for (i = 0; i < h_blocks + (h_part ? 1 : 0); i++) {
int wp = i * s->block_width; // vert position in frame
int ws = (i < h_blocks) ? s->block_width : h_part; // size of block
/* get the size of the compressed zlib chunk */
int size = get_bits(&gb, 16);
......@@ -193,30 +188,28 @@ static int flashsv_decode_frame(AVCodecContext *avctx,
} else {
/* decompress block */
int ret = inflateReset(&(s->zstream));
if (ret != Z_OK)
{
if (ret != Z_OK) {
av_log(avctx, AV_LOG_ERROR, "error in decompression (reset) of block %dx%d\n", i, j);
/* return -1; */
}
s->zstream.next_in = buf+(get_bits_count(&gb)/8);
s->zstream.avail_in = size;
s->zstream.next_out = s->tmpblock;
s->zstream.next_in = buf + (get_bits_count(&gb) / 8);
s->zstream.avail_in = size;
s->zstream.next_out = s->tmpblock;
s->zstream.avail_out = s->block_size*3;
ret = inflate(&(s->zstream), Z_FINISH);
if (ret == Z_DATA_ERROR)
{
if (ret == Z_DATA_ERROR) {
av_log(avctx, AV_LOG_ERROR, "Zlib resync occurred\n");
inflateSync(&(s->zstream));
ret = inflate(&(s->zstream), Z_FINISH);
}
if ((ret != Z_OK) && (ret != Z_STREAM_END))
{
if ((ret != Z_OK) && (ret != Z_STREAM_END)) {
av_log(avctx, AV_LOG_ERROR, "error in decompression of block %dx%d: %d\n", i, j, ret);
/* return -1; */
}
copy_region(s->tmpblock, s->frame.data[0], s->image_height-(hp+hs+1), wp, hs, ws, s->frame.linesize[0]);
skip_bits_long(&gb, 8*size); /* skip the consumed bits */
copy_region(s->tmpblock, s->frame.data[0], s->image_height - (hp + hs + 1),
wp, hs, ws, s->frame.linesize[0]);
skip_bits_long(&gb, 8 * size); /* skip the consumed bits */
}
}
}
......@@ -224,9 +217,9 @@ static int flashsv_decode_frame(AVCodecContext *avctx,
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->frame;
if ((get_bits_count(&gb)/8) != buf_size)
if ((get_bits_count(&gb) / 8) != buf_size)
av_log(avctx, AV_LOG_ERROR, "buffer not fully consumed (%d != %d)\n",
buf_size, (get_bits_count(&gb)/8));
buf_size, (get_bits_count(&gb) / 8));
/* report that the buffer was completely consumed */
return buf_size;
......@@ -249,15 +242,14 @@ static av_cold int flashsv_decode_end(AVCodecContext *avctx)
AVCodec ff_flashsv_decoder = {
"flashsv",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_FLASHSV,
sizeof(FlashSVContext),
flashsv_decode_init,
NULL,
flashsv_decode_end,
flashsv_decode_frame,
CODEC_CAP_DR1,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v1"),
.name = "flashsv",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_FLASHSV,
.priv_data_size = sizeof(FlashSVContext),
.init = flashsv_decode_init,
.close = flashsv_decode_end,
.decode = flashsv_decode_frame,
.capabilities = CODEC_CAP_DR1,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v1"),
};
This diff is collapsed.
......@@ -592,12 +592,16 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
/* This code assumes that extradata contains only palette. */
/* This is true for all paletted codecs implemented in FFmpeg. */
if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
int pal_size = (1 << st->codec->bits_per_coded_sample) << 2;
const uint8_t *pal_src;
pal_size = FFMIN(pal_size, st->codec->extradata_size);
pal_src = st->codec->extradata + st->codec->extradata_size - pal_size;
#if HAVE_BIGENDIAN
for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
ast->pal[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
for (i = 0; i < pal_size/4; i++)
ast->pal[i] = AV_RL32(pal_src+4*i);
#else
memcpy(ast->pal, st->codec->extradata,
FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
memcpy(ast->pal, pal_src, pal_size);
#endif
ast->has_pal = 1;
}
......
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