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Merge commit 'c8462bd17f35f435192281a2ea4ce8008a7398d3' into release/1.1

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* commit 'c8462bd17f35f435192281a2ea4ce8008a7398d3':
  mp3dec: fallback to generic seeking when a TOC is not present
  svq1dec: clip motion vectors to the frame size.
  svq1dec: check that the reference frame has the same dimensions as the current one
  qdm2: check that the FFT size is a power of 2

Conflicts:
	libavcodec/svq1dec.c
	libavformat/mp3dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-05-12 13:55:06 +02:00
parent 395538e073 c8462bd17f
commit d2b9da2f37
3 changed files with 27 additions and 23 deletions
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4
libavcodec/qdm2.c
View File

@@ -1870,6 +1870,10 @@ static av_cold int qdm2_decode_init(AVCodecContext *avctx)
av_log(avctx, AV_LOG_ERROR, "Unknown FFT order (%d), contact the developers!\n", s->fft_order);
return -1;
}
if (s->fft_size != (1 << (s->fft_order - 1))) {
av_log(avctx, AV_LOG_ERROR, "FFT size %d not power of 2.\n", s->fft_size);
return AVERROR_INVALIDDATA;
}
ff_rdft_init(&s->rdft_ctx, s->fft_order, IDFT_C2R);
ff_mpadsp_init(&s->mpadsp);

32
libavcodec/svq1dec.c
View File

@@ -321,7 +321,8 @@ static void svq1_skip_block(uint8_t *current, uint8_t *previous,
static int svq1_motion_inter_block(DSPContext *dsp, GetBitContext *bitbuf,
uint8_t *current, uint8_t *previous,
int pitch, svq1_pmv *motion, int x, int y)
int pitch, svq1_pmv *motion, int x, int y,
int width, int height)
{
uint8_t *src;
uint8_t *dst;
@@ -350,10 +351,8 @@ static int svq1_motion_inter_block(DSPContext *dsp, GetBitContext *bitbuf,
motion[x / 8 + 2].y =
motion[x / 8 + 3].y = mv.y;
if (y + (mv.y >> 1) < 0)
mv.y = 0;
if (x + (mv.x >> 1) < 0)
mv.x = 0;
mv.x = av_clip(mv.x, -2 * x, 2 * (width - x - 16));
mv.y = av_clip(mv.y, -2 * y, 2 * (height - y - 16));
src = &previous[(x + (mv.x >> 1)) + (y + (mv.y >> 1)) * pitch];
dst = current;
@@ -365,7 +364,8 @@ static int svq1_motion_inter_block(DSPContext *dsp, GetBitContext *bitbuf,
static int svq1_motion_inter_4v_block(DSPContext *dsp, GetBitContext *bitbuf,
uint8_t *current, uint8_t *previous,
int pitch, svq1_pmv *motion, int x, int y)
int pitch, svq1_pmv *motion, int x, int y,
int width, int height)
{
uint8_t *src;
uint8_t *dst;
@@ -421,10 +421,8 @@ static int svq1_motion_inter_4v_block(DSPContext *dsp, GetBitContext *bitbuf,
int mvy = pmv[i]->y + (i >> 1) * 16;
// FIXME: clipping or padding?
if (y + (mvy >> 1) < 0)
mvy = 0;
if (x + (mvx >> 1) < 0)
mvx = 0;
mvx = av_clip(mvx, -2 * x, 2 * (width - x - 8));
mvy = av_clip(mvy, -2 * y, 2 * (height - y - 8));
src = &previous[(x + (mvx >> 1)) + (y + (mvy >> 1)) * pitch];
dst = current;
@@ -444,7 +442,8 @@ static int svq1_motion_inter_4v_block(DSPContext *dsp, GetBitContext *bitbuf,
static int svq1_decode_delta_block(AVCodecContext *avctx, DSPContext *dsp,
GetBitContext *bitbuf,
uint8_t *current, uint8_t *previous,
int pitch, svq1_pmv *motion, int x, int y)
int pitch, svq1_pmv *motion, int x, int y,
int width, int height)
{
uint32_t block_type;
int result = 0;
@@ -469,7 +468,7 @@ static int svq1_decode_delta_block(AVCodecContext *avctx, DSPContext *dsp,
case SVQ1_BLOCK_INTER:
result = svq1_motion_inter_block(dsp, bitbuf, current, previous,
pitch, motion, x, y);
pitch, motion, x, y, width, height);
if (result != 0) {
av_dlog(avctx, "Error in svq1_motion_inter_block %i\n", result);
@@ -480,7 +479,7 @@ static int svq1_decode_delta_block(AVCodecContext *avctx, DSPContext *dsp,
case SVQ1_BLOCK_INTER_4V:
result = svq1_motion_inter_4v_block(dsp, bitbuf, current, previous,
pitch, motion, x, y);
pitch, motion, x, y, width, height);
if (result != 0) {
av_dlog(avctx, "Error in svq1_motion_inter_4v_block %i\n", result);
@@ -692,7 +691,8 @@ static int svq1_decode_frame(AVCodecContext *avctx, void *data,
} else {
/* delta frame */
uint8_t *previous = s->prev->data[i];
if (!previous) {
if (!previous ||
s->prev->width != s->width || s->prev->height != s->height) {
av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n");
result = AVERROR_INVALIDDATA;
goto err;
@@ -705,8 +705,8 @@ static int svq1_decode_frame(AVCodecContext *avctx, void *data,
result = svq1_decode_delta_block(avctx, &s->dsp,
&s->gb, &current[x],
previous, linesize,
pmv, x, y);
if (result) {
pmv, x, y, width, height);
if (result != 0) {
av_dlog(avctx,
"Error in svq1_decode_delta_block %i\n",
result);

14
libavformat/mp3dec.c
View File

@@ -40,7 +40,7 @@ typedef struct {
int xing_toc;
int start_pad;
int end_pad;
} MP3Context;
} MP3DecContext;
/* mp3 read */
@@ -89,7 +89,7 @@ static int mp3_read_probe(AVProbeData *p)
static void read_xing_toc(AVFormatContext *s, int64_t filesize, int64_t duration)
{
int i;
MP3Context *mp3 = s->priv_data;
MP3DecContext *mp3 = s->priv_data;
if (!filesize &&
!(filesize = avio_size(s->pb))) {
@@ -113,7 +113,7 @@ static void read_xing_toc(AVFormatContext *s, int64_t filesize, int64_t duration
*/
static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
{
MP3Context *mp3 = s->priv_data;
MP3DecContext *mp3 = s->priv_data;
uint32_t v, spf;
unsigned frames = 0; /* Total number of frames in file */
unsigned size = 0; /* Total number of bytes in the stream */
@@ -190,7 +190,7 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
static int mp3_read_header(AVFormatContext *s)
{
MP3Context *mp3 = s->priv_data;
MP3DecContext *mp3 = s->priv_data;
AVStream *st;
int64_t off;
@@ -226,7 +226,7 @@ static int mp3_read_header(AVFormatContext *s)
static int mp3_read_packet(AVFormatContext *s, AVPacket *pkt)
{
MP3Context *mp3 = s->priv_data;
MP3DecContext *mp3 = s->priv_data;
int ret, size;
int64_t pos;
@@ -273,7 +273,7 @@ static int check(AVFormatContext *s, int64_t pos)
static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
int flags)
{
MP3Context *mp3 = s->priv_data;
MP3DecContext *mp3 = s->priv_data;
AVIndexEntry *ie;
AVStream *st = s->streams[0];
int64_t ret = av_index_search_timestamp(st, timestamp, flags);
@@ -319,11 +319,11 @@ static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
AVInputFormat ff_mp3_demuxer = {
.name = "mp3",
.long_name = NULL_IF_CONFIG_SMALL("MP2/3 (MPEG audio layer 2/3)"),
.priv_data_size = sizeof(MP3Context),
.read_probe = mp3_read_probe,
.read_header = mp3_read_header,
.read_packet = mp3_read_packet,
.read_seek = mp3_seek,
.priv_data_size = sizeof(MP3DecContext),
.flags = AVFMT_GENERIC_INDEX,
.extensions = "mp2,mp3,m2a", /* XXX: use probe */
};