[FFmpeg-devel] [PATCH v3 12/16] avformat/flvdec: stop shadowing local variables
Timo Rothenpieler
timo at rothenpieler.org
Fri Dec 20 02:43:49 EET 2024
---
libavformat/flvdec.c | 44 ++++++++++++++++++++++----------------------
1 file changed, 22 insertions(+), 22 deletions(-)
diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index 15312cfa02..c66c37efa2 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -1396,8 +1396,8 @@ retry:
if (enhanced_flv && (flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_VIDEO_INFO_CMD) {
if (pkt_type == PacketTypeMetadata) {
- int ret = flv_parse_video_color_info(s, st, next);
- av_log(s, AV_LOG_DEBUG, "enhanced flv parse metadata ret %d and skip\n", ret);
+ int sret = flv_parse_video_color_info(s, st, next);
+ av_log(s, AV_LOG_DEBUG, "enhanced flv parse metadata ret %d and skip\n", sret);
}
goto skip;
} else if ((flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_VIDEO_INFO_CMD) {
@@ -1500,25 +1500,25 @@ skip:
if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
(!s->duration || s->duration == AV_NOPTS_VALUE) &&
!flv->searched_for_end) {
- int size;
+ int final_size;
const int64_t pos = avio_tell(s->pb);
// Read the last 4 bytes of the file, this should be the size of the
// previous FLV tag. Use the timestamp of its payload as duration.
int64_t fsize = avio_size(s->pb);
retry_duration:
avio_seek(s->pb, fsize - 4, SEEK_SET);
- size = avio_rb32(s->pb);
- if (size > 0 && size < fsize) {
- // Seek to the start of the last FLV tag at position (fsize - 4 - size)
+ final_size = avio_rb32(s->pb);
+ if (final_size > 0 && final_size < fsize) {
+ // Seek to the start of the last FLV tag at position (fsize - 4 - final_size)
// but skip the byte indicating the type.
- avio_seek(s->pb, fsize - 3 - size, SEEK_SET);
- if (size == avio_rb24(s->pb) + 11) {
+ avio_seek(s->pb, fsize - 3 - final_size, SEEK_SET);
+ if (final_size == avio_rb24(s->pb) + 11) {
uint32_t ts = avio_rb24(s->pb);
ts |= (unsigned)avio_r8(s->pb) << 24;
if (ts)
s->duration = ts * (int64_t)AV_TIME_BASE / 1000;
- else if (fsize >= 8 && fsize - 8 >= size) {
- fsize -= size+4;
+ else if (fsize >= 8 && fsize - 8 >= final_size) {
+ fsize -= final_size+4;
goto retry_duration;
}
}
@@ -1612,10 +1612,10 @@ retry_duration:
goto leave;
}
} else if (stream_type == FLV_STREAM_TYPE_VIDEO) {
- int ret = flv_set_video_codec(s, st, codec_id, 1);
- if (ret < 0)
- return ret;
- size -= ret;
+ int sret = flv_set_video_codec(s, st, codec_id, 1);
+ if (sret < 0)
+ return sret;
+ size -= sret;
} else if (stream_type == FLV_STREAM_TYPE_SUBTITLE) {
st->codecpar->codec_id = AV_CODEC_ID_TEXT;
} else if (stream_type == FLV_STREAM_TYPE_DATA) {
@@ -1705,20 +1705,20 @@ retry_duration:
pkt->stream_index = st->index;
pkt->pos = pos;
if (!multitrack && flv->new_extradata[stream_type]) {
- int ret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
- flv->new_extradata[stream_type],
- flv->new_extradata_size[stream_type]);
- if (ret >= 0) {
+ int sret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
+ flv->new_extradata[stream_type],
+ flv->new_extradata_size[stream_type]);
+ if (sret >= 0) {
flv->new_extradata[stream_type] = NULL;
flv->new_extradata_size[stream_type] = 0;
}
} else if (multitrack &&
flv->mt_extradata_cnt > track_idx &&
flv->mt_extradata[track_idx]) {
- int ret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
- flv->mt_extradata[track_idx],
- flv->mt_extradata_sz[track_idx]);
- if (ret >= 0) {
+ int sret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
+ flv->mt_extradata[track_idx],
+ flv->mt_extradata_sz[track_idx]);
+ if (sret >= 0) {
flv->mt_extradata[track_idx] = NULL;
flv->mt_extradata_sz[track_idx] = 0;
}
--
2.45.2
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