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avformat/smacker: Cosmetics

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Mainly reindentation.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-06-24 13:53:10 +02:00
parent e40ad1c0d4
commit d534009f76
1 changed files with 29 additions and 31 deletions
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60
libavformat/smacker.c
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@ -50,14 +50,14 @@ typedef struct SmackerContext {
/* internal variables */
int64_t next_frame_pos;
int cur_frame;
int videoindex;
int indexes[7];
/* current frame for demuxing */
uint32_t frame_size;
int flags;
int next_audio_index;
int new_palette;
uint8_t pal[768];
int indexes[7];
int videoindex;
int64_t aud_pts[7];
} SmackerContext;
@ -226,7 +226,6 @@ static int smacker_read_header(AVFormatContext *s)
return 0;
}
static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
{
SmackerContext *smk = s->priv_data;
@ -243,7 +242,7 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
flags = smk->frm_flags[smk->cur_frame];
smk->flags = flags >> 1;
/* handle palette change event */
if(flags & SMACKER_PAL){
if (flags & SMACKER_PAL) {
int size, sz, t, off, j, pos;
uint8_t *pal = smk->pal;
uint8_t oldpal[768];
@ -258,12 +257,12 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
smk->frame_size -= size--;
sz = 0;
pos = avio_tell(s->pb) + size;
while(sz < 256){
while (sz < 256) {
t = avio_r8(s->pb);
if(t & 0x80){ /* skip palette entries */
sz += (t & 0x7F) + 1;
if (t & 0x80) { /* skip palette entries */
sz += (t & 0x7F) + 1;
pal += ((t & 0x7F) + 1) * 3;
} else if(t & 0x40){ /* copy with offset */
} else if (t & 0x40) { /* copy with offset */
off = avio_r8(s->pb);
j = (t & 0x3F) + 1;
if (off + j > 0x100) {
@ -274,7 +273,7 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
goto next_frame;
}
off *= 3;
while(j-- && sz < 256) {
while (j-- && sz < 256) {
*pal++ = oldpal[off + 0];
*pal++ = oldpal[off + 1];
*pal++ = oldpal[off + 2];
@ -295,16 +294,16 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
for (int i = smk->next_audio_index; i < 7; i++) {
if (smk->flags & (1 << i)) {
uint32_t size;
uint32_t size;
size = avio_rl32(s->pb);
size = avio_rl32(s->pb);
if ((int)size < 8 || size > smk->frame_size) {
av_log(s, AV_LOG_ERROR, "Invalid audio part size\n");
ret = AVERROR_INVALIDDATA;
goto next_frame;
}
av_log(s, AV_LOG_ERROR, "Invalid audio part size\n");
ret = AVERROR_INVALIDDATA;
goto next_frame;
}
smk->frame_size -= size;
size -= 4;
size -= 4;
if (smk->indexes[i] < 0) {
avio_skip(s->pb, size);
@ -312,36 +311,35 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
}
if ((ret = av_get_packet(s->pb, pkt, size)) != size) {
ret = ret < 0 ? ret : AVERROR_INVALIDDATA;
goto next_frame;
}
goto next_frame;
}
pkt->stream_index = smk->indexes[i];
pkt->pts = smk->aud_pts[i];
smk->aud_pts[i] += AV_RL32(pkt->data);
smk->next_audio_index = i + 1;
return 0;
}
}
}
if (smk->frame_size >= INT_MAX/2) {
ret = AVERROR_INVALIDDATA;
goto next_frame;
}
ret = AVERROR_INVALIDDATA;
goto next_frame;
}
if ((ret = av_new_packet(pkt, smk->frame_size + 769)) < 0)
goto next_frame;
goto next_frame;
flags = smk->new_palette;
if(smk->frm_size[smk->cur_frame] & 1)
if (smk->frm_size[smk->cur_frame] & 1)
flags |= 2;
pkt->data[0] = flags;
memcpy(pkt->data + 1, smk->pal, 768);
memcpy(pkt->data + 1, smk->pal, 768);
ret = ffio_read_size(s->pb, pkt->data + 769, smk->frame_size);
if (ret < 0)
goto next_frame;
pkt->stream_index = smk->videoindex;
pkt->pts = smk->cur_frame;
pkt->size = ret + 769;
if (ret < 0)
goto next_frame;
pkt->stream_index = smk->videoindex;
pkt->pts = smk->cur_frame;
smk->next_audio_index = 0;
smk->new_palette = 0;
smk->cur_frame++;
smk->cur_frame++;
return 0;
next_frame: