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Merge commit 'bb675d3ac6d722d5e117ae9042a996b55ca05b1d' 

* commit 'bb675d3ac6d722d5e117ae9042a996b55ca05b1d':
  vp56: make parse_header return standard error codes

Conflicts:
	libavcodec/vp56.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-12-15 13:41:06 +01:00
parent 75b7e543df bb675d3ac6
commit f186ecc164
4 changed files with 20 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
libavcodec/vp5.c
View File

@ -48,18 +48,18 @@ static int vp5_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
{
vp56_rac_gets(c, 8);
if(vp56_rac_gets(c, 5) > 5)
return 0;
return AVERROR_INVALIDDATA;
vp56_rac_gets(c, 2);
if (vp56_rac_get(c)) {
av_log(s->avctx, AV_LOG_ERROR, "interlacing not supported\n");
return 0;
return AVERROR_PATCHWELCOME;
}
rows = vp56_rac_gets(c, 8); /* number of stored macroblock rows */
cols = vp56_rac_gets(c, 8); /* number of stored macroblock cols */
if (!rows || !cols) {
av_log(s->avctx, AV_LOG_ERROR, "Invalid size %dx%d\n",
cols << 4, rows << 4);
return 0;
return AVERROR_INVALIDDATA;
}
vp56_rac_gets(c, 8); /* number of displayed macroblock rows */
vp56_rac_gets(c, 8); /* number of displayed macroblock cols */
@ -68,11 +68,11 @@ static int vp5_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
16*cols != s->avctx->coded_width ||
16*rows != s->avctx->coded_height) {
avcodec_set_dimensions(s->avctx, 16*cols, 16*rows);
return 2;
return VP56_SIZE_CHANGE;
}
} else if (!s->macroblocks)
return 0;
return 1;
return AVERROR_INVALIDDATA;
return 0;
}
static void vp5_parse_vector_adjustment(VP56Context *s, VP56mv *vect)

12
libavcodec/vp56.c
View File

@ -524,10 +524,10 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
}
res = s->parse_header(s, buf, remaining_buf_size);
if (!res)
return -1;
if (res < 0)
return res;
if (res == 2) {
if (res == VP56_SIZE_CHANGE) {
for (i = 0; i < 4; i++) {
if (s->frames[i].data[0])
avctx->release_buffer(avctx, &s->frames[i]);
@ -540,7 +540,7 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
return -1;
}
if (res == 2) {
if (res == VP56_SIZE_CHANGE) {
if (vp56_size_changed(s)) {
avctx->release_buffer(avctx, p);
return -1;
@ -556,8 +556,8 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
remaining_buf_size -= alpha_offset;
res = s->alpha_context->parse_header(s->alpha_context, buf, remaining_buf_size);
if (res != 1) {
if(res==2) {
if (res != 0) {
if(res==VP56_SIZE_CHANGE) {
av_log(avctx, AV_LOG_ERROR, "Alpha reconfiguration\n");
avctx->width = bak_w;
avctx->height = bak_h;

2
libavcodec/vp56.h
View File

@ -40,6 +40,8 @@ typedef struct VP56mv {
int16_t y;
} VP56mv;
#define VP56_SIZE_CHANGE 1
typedef void (*VP56ParseVectorAdjustment)(VP56Context *s,
VP56mv *vect);
typedef void (*VP56Filter)(VP56Context *s, uint8_t *dst, uint8_t *src,

12
libavcodec/vp6.c
View File

@ -51,7 +51,7 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
int vrt_shift = 0;
int sub_version;
int rows, cols;
int res = 1;
int res = 0;
int separated_coeff = buf[0] & 1;
s->framep[VP56_FRAME_CURRENT]->key_frame = !(buf[0] & 0x80);
@ -60,7 +60,7 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
if (s->framep[VP56_FRAME_CURRENT]->key_frame) {
sub_version = buf[1] >> 3;
if (sub_version > 8)
return 0;
return AVERROR_INVALIDDATA;
s->filter_header = buf[1] & 0x06;
if (buf[1] & 1) {
av_log_missing_feature(s->avctx, "Interlacing", 0);
@ -78,7 +78,7 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
/* buf[5] is number of displayed macroblock cols */
if (!rows || !cols) {
av_log(s->avctx, AV_LOG_ERROR, "Invalid size %dx%d\n", cols << 4, rows << 4);
return 0;
return AVERROR_INVALIDDATA;
}
if (!s->macroblocks || /* first frame */
@ -89,7 +89,7 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
s->avctx->width -= s->avctx->extradata[0] >> 4;
s->avctx->height -= s->avctx->extradata[0] & 0x0F;
}
res = 2;
res = VP56_SIZE_CHANGE;
}
ff_vp56_init_range_decoder(c, buf+6, buf_size-6);
@ -102,7 +102,7 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
s->golden_frame = 0;
} else {
if (!s->sub_version || !s->avctx->coded_width || !s->avctx->coded_height)
return 0;
return AVERROR_INVALIDDATA;
if (separated_coeff || !s->filter_header) {
coeff_offset = AV_RB16(buf+1) - 2;
@ -146,7 +146,7 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
if (buf_size < 0) {
if (s->framep[VP56_FRAME_CURRENT]->key_frame)
avcodec_set_dimensions(s->avctx, 0, 0);
return 0;
return AVERROR_INVALIDDATA;
}
if (s->use_huffman) {
s->parse_coeff = vp6_parse_coeff_huffman;