[FFmpeg-devel] [PATCH 1/3] Fix various unused variable warnings
Clément Bœsch
ubitux at gmail.com
Sun May 29 21:07:34 CEST 2011
---
ffmpeg.c | 2 +-
ffplay.c | 4 ++--
libavcodec/a64multienc.c | 2 --
libavcodec/celp_filters.c | 3 +--
libavcodec/dca.c | 5 ++---
libavcodec/dirac.c | 2 +-
libavcodec/rv10.c | 2 +-
libavcodec/s302m.c | 2 +-
libavcodec/shorten.c | 2 +-
libavcodec/sp5xdec.c | 3 ---
libavcodec/truemotion2.c | 3 +--
libavcodec/vaapi_mpeg2.c | 2 +-
libavcodec/vmdav.c | 2 --
libavcodec/zmbvenc.c | 4 ++--
libavfilter/vf_fieldorder.c | 3 +--
libavformat/4xm.c | 2 +-
libavformat/apetag.c | 2 +-
libavformat/asfdec.c | 10 +++++-----
libavformat/mmf.c | 4 +---
libavformat/mov.c | 6 +++---
libavformat/oggdec.c | 4 ++--
libavformat/oggparsecelt.c | 4 ++--
libavformat/oggparseogm.c | 2 +-
libavformat/rl2.c | 4 ++--
libavformat/rmdec.c | 2 +-
libavformat/rpl.c | 2 +-
libavformat/rtpdec_latm.c | 2 +-
libavformat/sauce.c | 2 +-
libavformat/smacker.c | 2 --
libavformat/sol.c | 2 +-
libavformat/yuv4mpeg.c | 4 ++--
31 files changed, 40 insertions(+), 55 deletions(-)
diff --git a/ffmpeg.c b/ffmpeg.c
index 3f4cc2f..29f6950 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3720,7 +3720,7 @@ static void new_audio_stream(AVFormatContext *oc, int file_idx)
static void new_data_stream(AVFormatContext *oc, int file_idx)
{
AVStream *st;
- AVOutputStream *ost;
+ AVOutputStream *ost av_unused;
AVCodec *codec=NULL;
AVCodecContext *data_enc;
diff --git a/ffplay.c b/ffplay.c
index 9b9b665..ffe1c0f 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -1438,7 +1438,7 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
{
- int len1, got_picture, i;
+ int len1 av_unused, got_picture, i;
if (packet_queue_get(&is->videoq, pkt, 1) < 0)
return -1;
@@ -1813,7 +1813,7 @@ static int subtitle_thread(void *arg)
VideoState *is = arg;
SubPicture *sp;
AVPacket pkt1, *pkt = &pkt1;
- int len1, got_subtitle;
+ int len1 av_unused, got_subtitle;
double pts;
int i, j;
int r, g, b, y, u, v, a;
diff --git a/libavcodec/a64multienc.c b/libavcodec/a64multienc.c
index e9b3471..5a665d0 100644
--- a/libavcodec/a64multienc.c
+++ b/libavcodec/a64multienc.c
@@ -252,7 +252,6 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
int b_width;
int req_size;
- int num_frames = c->mc_lifetime;
int *charmap = c->mc_charmap;
uint8_t *colram = c->mc_colram;
@@ -280,7 +279,6 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
if (!c->mc_lifetime) return 0;
/* no more frames in queue, prepare to flush remaining frames */
if (!c->mc_frame_counter) {
- num_frames = c->mc_lifetime;
c->mc_lifetime = 0;
}
/* still frames in queue so limit lifetime to remaining frames */
diff --git a/libavcodec/celp_filters.c b/libavcodec/celp_filters.c
index 26a62ee..8b68c2f 100644
--- a/libavcodec/celp_filters.c
+++ b/libavcodec/celp_filters.c
@@ -109,7 +109,7 @@ void ff_celp_lp_synthesis_filterf(float *out, const float *filter_coeffs,
old_out2 = out[-2];
old_out3 = out[-1];
for (n = 0; n <= buffer_length - 4; n+=4) {
- float tmp0,tmp1,tmp2,tmp3;
+ float tmp0,tmp1,tmp2;
float val;
out0 = in[0];
@@ -160,7 +160,6 @@ void ff_celp_lp_synthesis_filterf(float *out, const float *filter_coeffs,
tmp0 = out0;
tmp1 = out1;
tmp2 = out2;
- tmp3 = out3;
out3 -= a * tmp2;
out2 -= a * tmp1;
diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 74bae4e..074f998 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -1535,8 +1535,8 @@ static void dca_exss_parse_header(DCAContext *s)
{
int ss_index;
int blownup;
- int header_size;
- int hd_size;
+ int header_size av_unused;
+ int hd_size av_unused;
int num_audiop = 1;
int num_assets = 1;
int active_ss_mask[8];
@@ -1622,7 +1622,6 @@ static int dca_decode_frame(AVCodecContext * avctx,
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
- int data_size_tmp;
int lfe_samples;
int num_core_channels = 0;
diff --git a/libavcodec/dirac.c b/libavcodec/dirac.c
index c8dc7a0..f39e999 100644
--- a/libavcodec/dirac.c
+++ b/libavcodec/dirac.c
@@ -245,7 +245,7 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
int ff_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
dirac_source_params *source)
{
- unsigned version_major, version_minor;
+ unsigned version_major, version_minor av_unused;
unsigned video_format, picture_coding_mode;
version_major = svq3_get_ue_golomb(gb);
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index cbecfa8..2ce7ea0 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -235,7 +235,7 @@ int rv_decode_dc(MpegEncContext *s, int n)
/* read RV 1.0 compatible frame header */
static int rv10_decode_picture_header(MpegEncContext *s)
{
- int mb_count, pb_frame, marker, unk, mb_xy;
+ int mb_count, pb_frame, marker, unk av_unused, mb_xy;
marker = get_bits1(&s->gb);
diff --git a/libavcodec/s302m.c b/libavcodec/s302m.c
index d8b2b38..d707208 100644
--- a/libavcodec/s302m.c
+++ b/libavcodec/s302m.c
@@ -29,7 +29,7 @@ static int s302m_parse_frame_header(AVCodecContext *avctx, const uint8_t *buf,
int buf_size)
{
uint32_t h;
- int frame_size, channels, id, bits;
+ int frame_size, channels, id av_unused, bits;
if (buf_size <= AES3_HEADER_LEN) {
av_log(avctx, AV_LOG_ERROR, "frame is too short\n");
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c
index f50da4e..b2a05cc 100644
--- a/libavcodec/shorten.c
+++ b/libavcodec/shorten.c
@@ -196,7 +196,7 @@ static int decode_wave_header(AVCodecContext *avctx, uint8_t *header, int header
{
GetBitContext hb;
int len;
- int chunk_size;
+ int chunk_size av_unused;
short wave_format;
init_get_bits(&hb, header, header_size*8);
diff --git a/libavcodec/sp5xdec.c b/libavcodec/sp5xdec.c
index 1af978f..0b56c10 100644
--- a/libavcodec/sp5xdec.c
+++ b/libavcodec/sp5xdec.c
@@ -38,15 +38,12 @@ static int sp5x_decode_frame(AVCodecContext *avctx,
int buf_size = avpkt->size;
AVPacket avpkt_recoded;
const int qscale = 5;
- const uint8_t *buf_ptr;
uint8_t *recoded;
int i = 0, j = 0;
if (!avctx->width || !avctx->height)
return -1;
- buf_ptr = buf;
-
recoded = av_mallocz(buf_size + 1024);
if (!recoded)
return -1;
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c
index 122049c..f09a5ed 100644
--- a/libavcodec/truemotion2.c
+++ b/libavcodec/truemotion2.c
@@ -201,7 +201,6 @@ static inline int tm2_read_header(TM2Context *ctx, const uint8_t *buf)
{
uint32_t magic;
const uint8_t *obuf;
- int length;
obuf = buf;
@@ -212,7 +211,7 @@ static inline int tm2_read_header(TM2Context *ctx, const uint8_t *buf)
/* av_log (ctx->avctx, AV_LOG_ERROR, "TM2 old header: not implemented (yet)\n"); */
return 40;
} else if(magic == 0x00000101) { /* new header */
- int w, h, size, flags, xr, yr;
+ av_unused int w, h, size, flags, xr, yr, length;
length = AV_RL32(buf);
buf += 4;
diff --git a/libavcodec/vaapi_mpeg2.c b/libavcodec/vaapi_mpeg2.c
index 3b3f6e0..6c92a0f 100644
--- a/libavcodec/vaapi_mpeg2.c
+++ b/libavcodec/vaapi_mpeg2.c
@@ -109,7 +109,7 @@ static int vaapi_mpeg2_decode_slice(AVCodecContext *avctx, const uint8_t *buffer
MpegEncContext * const s = avctx->priv_data;
VASliceParameterBufferMPEG2 *slice_param;
GetBitContext gb;
- uint32_t start_code, quantiser_scale_code, intra_slice_flag, macroblock_offset;
+ uint32_t start_code av_unused, quantiser_scale_code, intra_slice_flag, macroblock_offset;
av_dlog(avctx, "vaapi_mpeg2_decode_slice(): buffer %p, size %d\n", buffer, size);
diff --git a/libavcodec/vmdav.c b/libavcodec/vmdav.c
index 8d8bc61..934a52b 100644
--- a/libavcodec/vmdav.c
+++ b/libavcodec/vmdav.c
@@ -199,7 +199,6 @@ static void vmd_decode(VmdVideoContext *s)
int frame_x, frame_y;
int frame_width, frame_height;
- int dp_size;
frame_x = AV_RL16(&s->buf[6]);
frame_y = AV_RL16(&s->buf[8]);
@@ -247,7 +246,6 @@ static void vmd_decode(VmdVideoContext *s)
}
dp = &s->frame.data[0][frame_y * s->frame.linesize[0] + frame_x];
- dp_size = s->frame.linesize[0] * s->avctx->height;
pp = &s->prev_frame.data[0][frame_y * s->prev_frame.linesize[0] + frame_x];
switch (meth) {
case 1:
diff --git a/libavcodec/zmbvenc.c b/libavcodec/zmbvenc.c
index 55aa7b9..4c98987 100644
--- a/libavcodec/zmbvenc.c
+++ b/libavcodec/zmbvenc.c
@@ -181,7 +181,7 @@ static int encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_size, void
int x, y, bh2, bw2, xored;
uint8_t *tsrc, *tprev;
uint8_t *mv;
- int mx, my, bv;
+ int mx, my;
bw = (avctx->width + ZMBV_BLOCK - 1) / ZMBV_BLOCK;
bh = (avctx->height + ZMBV_BLOCK - 1) / ZMBV_BLOCK;
@@ -197,7 +197,7 @@ static int encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_size, void
tsrc = src + x;
tprev = prev + x;
- bv = zmbv_me(c, tsrc, p->linesize[0], tprev, c->pstride, x, y, &mx, &my, &xored);
+ zmbv_me(c, tsrc, p->linesize[0], tprev, c->pstride, x, y, &mx, &my, &xored);
mv[0] = (mx << 1) | !!xored;
mv[1] = my << 1;
tprev += mx + my * c->pstride;
diff --git a/libavfilter/vf_fieldorder.c b/libavfilter/vf_fieldorder.c
index 59ca778..0913b69 100644
--- a/libavfilter/vf_fieldorder.c
+++ b/libavfilter/vf_fieldorder.c
@@ -153,7 +153,7 @@ static void end_frame(AVFilterLink *inlink)
AVFilterBufferRef *inpicref = inlink->cur_buf;
AVFilterBufferRef *outpicref = outlink->out_buf;
- int h, w, plane, line_step, line_size, line;
+ int h, plane, line_step, line_size, line;
uint8_t *cpy_src, *cpy_dst;
if ( inpicref->video->interlaced
@@ -162,7 +162,6 @@ static void end_frame(AVFilterLink *inlink)
"picture will move %s one line\n",
fieldorder->dst_tff ? "up" : "down");
h = inpicref->video->h;
- w = inpicref->video->w;
for (plane = 0; plane < 4 && inpicref->data[plane]; plane++) {
line_step = inpicref->linesize[plane];
line_size = fieldorder->line_size[plane];
diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index 6992772..42ecbde 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -246,7 +246,7 @@ static int fourxm_read_packet(AVFormatContext *s,
FourxmDemuxContext *fourxm = s->priv_data;
AVIOContext *pb = s->pb;
unsigned int fourcc_tag;
- unsigned int size, out_size;
+ unsigned int size, out_size av_unused;
int ret = 0;
unsigned int track_number;
int packet_read = 0;
diff --git a/libavformat/apetag.c b/libavformat/apetag.c
index fb46d2b..4a464de 100644
--- a/libavformat/apetag.c
+++ b/libavformat/apetag.c
@@ -35,7 +35,7 @@ static int ape_tag_read_field(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
uint8_t key[1024], *value;
- uint32_t size, flags;
+ uint32_t size, flags av_unused;
int i, c;
size = avio_rl32(pb); /* field size */
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 3564bf4..e2efeef 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -209,7 +209,7 @@ static int asf_read_stream_properties(AVFormatContext *s, int64_t size)
ff_asf_guid g;
enum AVMediaType type;
int type_specific_size, sizeX;
- uint64_t total_size;
+ uint64_t total_size av_unused;
unsigned int tag1;
int64_t pos1, pos2, start_time;
int test_for_ext_stream_audio, is_dvr_ms_audio=0;
@@ -393,7 +393,7 @@ static int asf_read_ext_stream_properties(AVFormatContext *s, int64_t size)
AVIOContext *pb = s->pb;
ff_asf_guid g;
int ext_len, payload_ext_ct, stream_ct, i;
- uint32_t ext_d, leak_rate, stream_num;
+ uint32_t ext_d av_unused, leak_rate, stream_num;
unsigned int stream_languageid_index;
avio_rl64(pb); // starttime
@@ -511,7 +511,7 @@ static int asf_read_metadata(AVFormatContext *s, int64_t size)
{
AVIOContext *pb = s->pb;
ASFContext *asf = s->priv_data;
- int n, stream_num, name_len, value_len, value_type, value_num;
+ int n, stream_num, name_len, value_len, value_type av_unused, value_num;
int ret, i;
n = avio_rl16(pb);
@@ -626,7 +626,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
// if so the next iteration will pick it up
continue;
} else if (!ff_guidcmp(&g, &ff_asf_head1_guid)) {
- int v1, v2;
+ av_unused int v1, v2;
ff_get_guid(pb, &g);
v1 = avio_rl32(pb);
v2 = avio_rl16(pb);
@@ -799,7 +799,7 @@ static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){
ASFContext *asf = s->priv_data;
int rsize = 1;
int num = avio_r8(pb);
- int64_t ts0, ts1;
+ int64_t ts0, ts1 av_unused;
asf->packet_segments--;
asf->packet_key_frame = num >> 7;
diff --git a/libavformat/mmf.c b/libavformat/mmf.c
index fc6fcc3..b75bee3 100644
--- a/libavformat/mmf.c
+++ b/libavformat/mmf.c
@@ -186,7 +186,7 @@ static int mmf_read_header(AVFormatContext *s,
unsigned int tag;
AVIOContext *pb = s->pb;
AVStream *st;
- int64_t file_size, size;
+ int64_t file_size av_unused, size;
int rate, params;
tag = avio_rl32(pb);
@@ -263,12 +263,10 @@ static int mmf_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
MMFContext *mmf = s->priv_data;
- AVStream *st;
int ret, size;
if (url_feof(s->pb))
return AVERROR(EIO);
- st = s->streams[0];
size = MAX_SIZE;
if(size > mmf->data_size)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index e51116b..1af1cde 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -469,21 +469,21 @@ static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
- int tag, len;
+ int tag;
if (fc->nb_streams < 1)
return 0;
st = fc->streams[fc->nb_streams-1];
avio_rb32(pb); /* version + flags */
- len = ff_mp4_read_descr(fc, pb, &tag);
+ ff_mp4_read_descr(fc, pb, &tag);
if (tag == MP4ESDescrTag) {
avio_rb16(pb); /* ID */
avio_r8(pb); /* priority */
} else
avio_rb16(pb); /* ID */
- len = ff_mp4_read_descr(fc, pb, &tag);
+ ff_mp4_read_descr(fc, pb, &tag);
if (tag == MP4DecConfigDescrTag)
ff_mp4_read_dec_config_descr(fc, st, pb);
return 0;
diff --git a/libavformat/oggdec.c b/libavformat/oggdec.c
index 344bd1c..968cdd9 100644
--- a/libavformat/oggdec.c
+++ b/libavformat/oggdec.c
@@ -197,8 +197,8 @@ static int ogg_read_page(AVFormatContext *s, int *str)
int flags, nsegs;
uint64_t gp;
uint32_t serial;
- uint32_t seq;
- uint32_t crc;
+ uint32_t seq av_unused;
+ uint32_t crc av_unused;
int size, idx;
uint8_t sync[4];
int sp = 0;
diff --git a/libavformat/oggparsecelt.c b/libavformat/oggparsecelt.c
index bbb695f..2adc060 100644
--- a/libavformat/oggparsecelt.c
+++ b/libavformat/oggparsecelt.c
@@ -41,8 +41,8 @@ static int celt_header(AVFormatContext *s, int idx)
/* Main header */
- uint32_t version, header_size, sample_rate, nb_channels, frame_size;
- uint32_t overlap, bytes_per_packet, extra_headers;
+ uint32_t version, header_size av_unused, sample_rate, nb_channels, frame_size;
+ uint32_t overlap, bytes_per_packet av_unused, extra_headers;
uint8_t *extradata;
extradata = av_malloc(2 * sizeof(uint32_t) +
diff --git a/libavformat/oggparseogm.c b/libavformat/oggparseogm.c
index dda5be6..ec575e0 100644
--- a/libavformat/oggparseogm.c
+++ b/libavformat/oggparseogm.c
@@ -39,7 +39,7 @@ ogm_header(AVFormatContext *s, int idx)
const uint8_t *p = os->buf + os->pstart;
uint64_t time_unit;
uint64_t spu;
- uint32_t default_len;
+ uint32_t default_len av_unused;
if(!(*p & 1))
return 0;
diff --git a/libavformat/rl2.c b/libavformat/rl2.c
index 93d4c34..219aa69 100644
--- a/libavformat/rl2.c
+++ b/libavformat/rl2.c
@@ -80,8 +80,8 @@ static av_cold int rl2_read_header(AVFormatContext *s,
unsigned int audio_frame_counter = 0;
unsigned int video_frame_counter = 0;
unsigned int back_size;
- int data_size;
- unsigned short encoding_method;
+ int data_size av_unused;
+ unsigned short encoding_method av_unused;
unsigned short sound_rate;
unsigned short rate;
unsigned short channels;
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index 6fb3624..5c24d02 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -280,7 +280,7 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb,
if (rm_read_audio_stream_info(s, pb, st, rst, 0))
return -1;
} else {
- int fps, fps2;
+ int fps, fps2 av_unused;
if (avio_rl32(pb) != MKTAG('V', 'I', 'D', 'O')) {
fail1:
av_log(st->codec, AV_LOG_ERROR, "Unsupported video codec\n");
diff --git a/libavformat/rpl.c b/libavformat/rpl.c
index 9702fc7..be5bf9c 100644
--- a/libavformat/rpl.c
+++ b/libavformat/rpl.c
@@ -299,7 +299,7 @@ static int rpl_read_packet(AVFormatContext *s, AVPacket *pkt)
stream->codec->codec_tag == 124) {
// We have to split Escape 124 frames because there are
// multiple frames per chunk in Escape 124 samples.
- uint32_t frame_size, frame_flags;
+ uint32_t frame_size, frame_flags av_unused;
frame_flags = avio_rl32(pb);
frame_size = avio_rl32(pb);
diff --git a/libavformat/rtpdec_latm.c b/libavformat/rtpdec_latm.c
index 2b366a0..74754df 100644
--- a/libavformat/rtpdec_latm.c
+++ b/libavformat/rtpdec_latm.c
@@ -108,7 +108,7 @@ static int parse_fmtp_config(AVStream *st, char *value)
int len = ff_hex_to_data(NULL, value), i, ret = 0;
GetBitContext gb;
uint8_t *config;
- int audio_mux_version, same_time_framing, num_sub_frames,
+ int audio_mux_version, same_time_framing, num_sub_frames av_unused,
num_programs, num_layers;
/* Pad this buffer, too, to avoid out of bounds reads with get_bits below */
diff --git a/libavformat/sauce.c b/libavformat/sauce.c
index 41e991e..0b22a75 100644
--- a/libavformat/sauce.c
+++ b/libavformat/sauce.c
@@ -32,7 +32,7 @@ int ff_sauce_read(AVFormatContext *avctx, uint64_t *fsize, int *got_width, int g
{
AVIOContext *pb = avctx->pb;
char buf[36];
- int datatype, filetype, t1, t2, nb_comments, flags;
+ int datatype, filetype, t1, t2, nb_comments, flags av_unused;
uint64_t start_pos = avio_size(pb) - 128;
avio_seek(pb, start_pos, SEEK_SET);
diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index 2603a4d..29a66e7 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -233,7 +233,6 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
int i;
int frame_size = 0;
int palchange = 0;
- int pos;
if (url_feof(s->pb) || smk->cur_frame >= smk->frames)
return AVERROR_EOF;
@@ -244,7 +243,6 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
frame_size = smk->frm_size[smk->cur_frame] & (~3);
flags = smk->frm_flags[smk->cur_frame];
/* handle palette change event */
- pos = avio_tell(s->pb);
if(flags & SMACKER_PAL){
int size, sz, t, off, j, pos;
uint8_t *pal = smk->pal;
diff --git a/libavformat/sol.c b/libavformat/sol.c
index 7ad894e..70fddae 100644
--- a/libavformat/sol.c
+++ b/libavformat/sol.c
@@ -85,7 +85,7 @@ static int sol_channels(int magic, int type)
static int sol_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
- int size;
+ int size av_unused;
unsigned int magic,tag;
AVIOContext *pb = s->pb;
unsigned int id, channels, rate, type;
diff --git a/libavformat/yuv4mpeg.c b/libavformat/yuv4mpeg.c
index a852568..445ec37 100644
--- a/libavformat/yuv4mpeg.c
+++ b/libavformat/yuv4mpeg.c
@@ -94,7 +94,7 @@ static int yuv4_write_packet(AVFormatContext *s, AVPacket *pkt)
AVPicture *picture;
int* first_pkt = s->priv_data;
int width, height, h_chroma_shift, v_chroma_shift;
- int i, m;
+ int i;
char buf2[Y4M_LINE_MAX+1];
char buf1[20];
uint8_t *ptr, *ptr1, *ptr2;
@@ -114,7 +114,7 @@ static int yuv4_write_packet(AVFormatContext *s, AVPacket *pkt)
/* construct frame header */
- m = snprintf(buf1, sizeof(buf1), "%s\n", Y4M_FRAME_MAGIC);
+ snprintf(buf1, sizeof(buf1), "%s\n", Y4M_FRAME_MAGIC);
avio_write(pb, buf1, strlen(buf1));
width = st->codec->width;
--
1.7.5.2
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