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Code Issues Releases Activity

Merge remote branch 'qatar/master'

Browse Source 
* 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: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-04-26 04:12:43 +02:00
commit 3788a3c0c0
5 changed files with 154 additions and 150 deletions
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1
cmdutils.c
View File

@ -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;

2
libavcodec/ac3enc_fixed.c
View File

@ -36,7 +36,7 @@
*/
static av_cold void mdct_end(AC3MDCTContext *mdct)
{
ff_fft_end(&mdct->fft);
ff_mdct_end(&mdct->fft);
}

48
libavcodec/flashsv.c
View File

@ -49,12 +49,11 @@
#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;
@ -71,8 +70,7 @@ static void copy_region(uint8_t *sptr, uint8_t *dptr,
{
int i;
for (i = dx+h; i > dx; i--)
{
for (i = dx + h; i > dx; i--) {
memcpy(dptr + (i * stride) + dy * 3, sptr, w * 3);
sptr += w * 3;
}
@ -100,9 +98,8 @@ 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;
@ -136,7 +133,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx,
av_free(s->tmpblock);
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;
@ -167,16 +164,14 @@ static int flashsv_decode_frame(AVCodecContext *avctx,
}
/* 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
/* loop over all block rows */
for (i = 0; i < h_blocks + (h_part?1:0); i++)
{
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
@ -193,8 +188,7 @@ 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; */
}
@ -203,19 +197,18 @@ static int flashsv_decode_frame(AVCodecContext *avctx,
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]);
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 */
}
}
@ -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,
.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"),
};

53
libavcodec/flashsvenc.c
View File

@ -76,8 +76,9 @@ typedef struct FlashSVContext {
int last_key_frame;
} FlashSVContext;
static int copy_region_enc(uint8_t *sptr, uint8_t *dptr,
int dx, int dy, int h, int w, int stride, uint8_t *pfptr) {
static int copy_region_enc(uint8_t *sptr, uint8_t *dptr, int dx, int dy,
int h, int w, int stride, uint8_t *pfptr)
{
int i, j;
uint8_t *nsptr;
uint8_t *npfptr;
@ -105,7 +106,7 @@ static av_cold int flashsv_encode_init(AVCodecContext *avctx)
if ((avctx->width > 4095) || (avctx->height > 4095)) {
av_log(avctx, AV_LOG_ERROR, "Input dimensions too large, input must be max 4096x4096 !\n");
return -1;
return AVERROR_INVALIDDATA;
}
// Needed if zlib unused or init aborted before deflateInit
@ -121,15 +122,17 @@ static av_cold int flashsv_encode_init(AVCodecContext *avctx)
if (!s->tmpblock || !s->encbuffer) {
av_log(avctx, AV_LOG_ERROR, "Memory allocation failed.\n");
return -1;
return AVERROR(ENOMEM);
}
return 0;
}
static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf, int buf_size,
int block_width, int block_height, uint8_t *previous_frame, int* I_frame) {
static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf,
int buf_size, int block_width, int block_height,
uint8_t *previous_frame, int *I_frame)
{
PutBitContext pb;
int h_blocks, v_blocks, h_part, v_part, i, j;
@ -151,15 +154,13 @@ static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf, int buf
v_part = s->image_height % block_height;
/* 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 * block_height; // horiz position in frame
int hs = (j < v_blocks) ? block_height : v_part; // size of block
/* loop over all block rows */
for (i = 0; i < h_blocks + (h_part?1:0); i++)
{
for (i = 0; i < h_blocks + (h_part ? 1 : 0); i++) {
int wp = i * block_width; // vert position in frame
int ws = (i < h_blocks) ? block_width : h_part; // size of block
int ret = Z_OK;
@ -167,8 +168,11 @@ static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf, int buf
ptr = buf + buf_pos;
//copy the block to the temp buffer before compression (if it differs from the previous frame's block)
res = copy_region_enc(p->data[0], s->tmpblock, s->image_height-(hp+hs+1), wp, hs, ws, p->linesize[0], previous_frame);
/* copy the block to the temp buffer before compression
* (if it differs from the previous frame's block) */
res = copy_region_enc(p->data[0], s->tmpblock,
s->image_height - (hp + hs + 1),
wp, hs, ws, p->linesize[0], previous_frame);
if (res || *I_frame) {
unsigned long zsize;
@ -200,7 +204,8 @@ static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf, int buf
}
static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_size, void *data)
static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf,
int buf_size, void *data)
{
FlashSVContext * const s = avctx->priv_data;
AVFrame *pict = data;
@ -217,7 +222,7 @@ static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_siz
s->previous_frame = av_mallocz(FFABS(p->linesize[0]) * s->image_height);
if (!s->previous_frame) {
av_log(avctx, AV_LOG_ERROR, "Memory allocation failed.\n");
return -1;
return AVERROR(ENOMEM);
}
I_frame = 1;
}
@ -239,7 +244,8 @@ static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_siz
if (buf_size < s->image_width*s->image_height*3) {
//Conservative upper bound check for compressed data
av_log(avctx, AV_LOG_ERROR, "buf_size %d < %d\n", buf_size, s->image_width*s->image_height*3);
av_log(avctx, AV_LOG_ERROR, "buf_size %d < %d\n",
buf_size, s->image_width * s->image_height * 3);
return -1;
}
@ -249,7 +255,8 @@ static int flashsv_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_siz
if (p->linesize[0] > 0)
memcpy(s->previous_frame, p->data[0], s->image_height * p->linesize[0]);
else
memcpy(s->previous_frame, p->data[0] + p->linesize[0] * (s->image_height-1), s->image_height*FFABS(p->linesize[0]));
memcpy(s->previous_frame, p->data[0] + p->linesize[0] * (s->image_height - 1),
s->image_height * FFABS(p->linesize[0]));
//mark the frame type so the muxer can mux it correctly
if (I_frame) {
@ -281,13 +288,13 @@ static av_cold int flashsv_encode_end(AVCodecContext *avctx)
}
AVCodec ff_flashsv_encoder = {
"flashsv",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_FLASHSV,
sizeof(FlashSVContext),
flashsv_encode_init,
flashsv_encode_frame,
flashsv_encode_end,
.name = "flashsv",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_FLASHSV,
.priv_data_size = sizeof(FlashSVContext),
.init = flashsv_encode_init,
.encode = flashsv_encode_frame,
.close = flashsv_encode_end,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video"),
};

12
libavformat/avidec.c
View File

@ -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;
}