avformat/dv: K&R formatting cosmetics

1 files changed, 97 insertions, 79 deletions

diff --git a/libavformat/dv.c b/libavformat/dv.c
index 1730972213..d52be5d5a5 100644
--- a/libavformat/dv.c
+++ b/libavformat/dv.c
@@ -63,7 +63,7 @@ static inline uint16_t dv_audio_12to16(uint16_t sample)
         shift--;
         result = (sample - (256 * shift)) << shift;
     } else {
-        shift = 0xe - shift;
+        shift  = 0xe - shift;
         result = ((sample + ((256 * shift) + 1)) << shift) - 1;
     }
 
@@ -75,19 +75,19 @@ static inline uint16_t dv_audio_12to16(uint16_t sample)
  * a fixed offset and if pack isn't there -- fails. We might want
  * to have a fallback mechanism for complete search of missing packs.
  */
-static const uint8_t* dv_extract_pack(uint8_t* frame, enum dv_pack_type t)
+static const uint8_t *dv_extract_pack(uint8_t *frame, enum dv_pack_type t)
 {
     int offs;
 
     switch (t) {
     case dv_audio_source:
-        offs = (80*6 + 80*16*3 + 3);
+        offs = (80 * 6 + 80 * 16 * 3 + 3);
         break;
     case dv_audio_control:
-        offs = (80*6 + 80*16*4 + 3);
+        offs = (80 * 6 + 80 * 16 * 4 + 3);
         break;
     case dv_video_control:
-        offs = (80*5 + 48 + 5);
+        offs = (80 * 5 + 48 + 5);
         break;
     default:
         return NULL;
@@ -108,29 +108,29 @@ static const int dv_audio_frequency[3] = {
  * 3. Audio is always returned as 16bit linear samples: 12bit nonlinear samples
  *    are converted into 16bit linear ones.
  */
-static int dv_extract_audio(uint8_t* frame, uint8_t* ppcm[4],
+static int dv_extract_audio(uint8_t *frame, uint8_t *ppcm[4],
                             const DVprofile *sys)
 {
     int size, chan, i, j, d, of, smpls, freq, quant, half_ch;
     uint16_t lc, rc;
-    const uint8_t* as_pack;
+    const uint8_t *as_pack;
     uint8_t *pcm, ipcm;
 
     as_pack = dv_extract_pack(frame, dv_audio_source);
     if (!as_pack)    /* No audio ? */
         return 0;
 
-    smpls =  as_pack[1] & 0x3f;       /* samples in this frame - min. samples */
-    freq  = (as_pack[4] >> 3) & 0x07; /* 0 - 48kHz, 1 - 44,1kHz, 2 - 32kHz */
-    quant =  as_pack[4] & 0x07;       /* 0 - 16bit linear, 1 - 12bit nonlinear */
+    smpls = as_pack[1]      & 0x3f; /* samples in this frame - min. samples */
+    freq  = as_pack[4] >> 3 & 0x07; /* 0 - 48kHz, 1 - 44,1kHz, 2 - 32kHz */
+    quant = as_pack[4]      & 0x07; /* 0 - 16bit linear, 1 - 12bit nonlinear */
 
     if (quant > 1)
-        return -1; /* unsupported quantization */
+        return -1;  /* unsupported quantization */
 
     if (freq >= FF_ARRAY_ELEMS(dv_audio_frequency))
         return AVERROR_INVALIDDATA;
 
-    size = (sys->audio_min_samples[freq] + smpls) * 4; /* 2ch, 2bytes */
+    size    = (sys->audio_min_samples[freq] + smpls) * 4; /* 2ch, 2bytes */
     half_ch = sys->difseg_size / 2;
 
     /* We work with 720p frames split in half, thus even frames have
@@ -158,32 +158,41 @@ static int dv_extract_audio(uint8_t* frame, uint8_t* ppcm[4],
             for (j = 0; j < 9; j++) {
                 for (d = 8; d < 80; d += 2) {
                     if (quant == 0) {  /* 16bit quantization */
-                        of = sys->audio_shuffle[i][j] + (d - 8) / 2 * sys->audio_stride;
-                        if (of*2 >= size)
+                        of = sys->audio_shuffle[i][j] +
+                             (d - 8) / 2 * sys->audio_stride;
+                        if (of * 2 >= size)
                             continue;
 
-                        pcm[of*2]   = frame[d+1]; // FIXME: maybe we have to admit
-                        pcm[of*2+1] = frame[d];   //        that DV is a big-endian PCM
-                        if (pcm[of*2+1] == 0x80 && pcm[of*2] == 0x00)
-                            pcm[of*2+1] = 0;
+                        /* FIXME: maybe we have to admit that DV is a
+                         * big-endian PCM */
+                        pcm[of * 2]     = frame[d + 1];
+                        pcm[of * 2 + 1] = frame[d];
+
+                        if (pcm[of * 2 + 1] == 0x80 && pcm[of * 2] == 0x00)
+                            pcm[of * 2 + 1] = 0;
                     } else {           /* 12bit quantization */
-                        lc = ((uint16_t)frame[d]   << 4) |
-                             ((uint16_t)frame[d+2] >> 4);
-                        rc = ((uint16_t)frame[d+1] << 4) |
-                             ((uint16_t)frame[d+2] & 0x0f);
+                        lc = ((uint16_t)frame[d]     << 4) |
+                             ((uint16_t)frame[d + 2] >> 4);
+                        rc = ((uint16_t)frame[d + 1] << 4) |
+                             ((uint16_t)frame[d + 2] & 0x0f);
                         lc = (lc == 0x800 ? 0 : dv_audio_12to16(lc));
                         rc = (rc == 0x800 ? 0 : dv_audio_12to16(rc));
 
-                        of = sys->audio_shuffle[i%half_ch][j] + (d - 8) / 3 * sys->audio_stride;
-                        if (of*2 >= size)
+                        of = sys->audio_shuffle[i % half_ch][j] +
+                             (d - 8) / 3 * sys->audio_stride;
+                        if (of * 2 >= size)
                             continue;
 
-                        pcm[of*2]   = lc & 0xff; // FIXME: maybe we have to admit
-                        pcm[of*2+1] = lc >> 8;   //        that DV is a big-endian PCM
-                        of = sys->audio_shuffle[i%half_ch+half_ch][j] +
-                            (d - 8) / 3 * sys->audio_stride;
-                        pcm[of*2]   = rc & 0xff; // FIXME: maybe we have to admit
-                        pcm[of*2+1] = rc >> 8;   //        that DV is a big-endian PCM
+                        /* FIXME: maybe we have to admit that DV is a
+                         * big-endian PCM */
+                        pcm[of * 2]     = lc & 0xff;
+                        pcm[of * 2 + 1] = lc >> 8;
+                        of = sys->audio_shuffle[i % half_ch + half_ch][j] +
+                             (d - 8) / 3 * sys->audio_stride;
+                        /* FIXME: maybe we have to admit that DV is a
+                         * big-endian PCM */
+                        pcm[of * 2]     = rc & 0xff;
+                        pcm[of * 2 + 1] = rc >> 8;
                         ++d;
                     }
                 }
@@ -196,9 +205,9 @@ static int dv_extract_audio(uint8_t* frame, uint8_t* ppcm[4],
     return size;
 }
 
-static int dv_extract_audio_info(DVDemuxContext* c, uint8_t* frame)
+static int dv_extract_audio_info(DVDemuxContext *c, uint8_t *frame)
 {
-    const uint8_t* as_pack;
+    const uint8_t *as_pack;
     int freq, stype, smpls, quant, i, ach;
 
     as_pack = dv_extract_pack(frame, dv_audio_source);
@@ -207,10 +216,10 @@ static int dv_extract_audio_info(DVDemuxContext* c, uint8_t* frame)
         return 0;
     }
 
-    smpls =  as_pack[1] & 0x3f;       /* samples in this frame - min. samples */
-    freq  = (as_pack[4] >> 3) & 0x07; /* 0 - 48kHz, 1 - 44,1kHz, 2 - 32kHz */
-    stype = (as_pack[3] & 0x1f);      /* 0 - 2CH, 2 - 4CH, 3 - 8CH */
-    quant =  as_pack[4] & 0x07;       /* 0 - 16bit linear, 1 - 12bit nonlinear */
+    smpls = as_pack[1]      & 0x3f; /* samples in this frame - min. samples */
+    freq  = as_pack[4] >> 3 & 0x07; /* 0 - 48kHz, 1 - 44,1kHz, 2 - 32kHz */
+    stype = as_pack[3]      & 0x1f; /* 0 - 2CH, 2 - 4CH, 3 - 8CH */
+    quant = as_pack[4]      & 0x07; /* 0 - 16bit linear, 1 - 12bit nonlinear */
 
     if (freq >= FF_ARRAY_ELEMS(dv_audio_frequency)) {
         av_log(c->fctx, AV_LOG_ERROR,
@@ -225,7 +234,7 @@ static int dv_extract_audio_info(DVDemuxContext* c, uint8_t* frame)
     }
 
     /* note: ach counts PAIRS of channels (i.e. stereo channels) */
-    ach = ((int[4]){  1,  0,  2,  4})[stype];
+    ach = ((int[4]) { 1, 0, 2, 4 })[stype];
     if (ach == 1 && quant && freq == 2)
         ach = 2;
 
@@ -245,21 +254,21 @@ static int dv_extract_audio_info(DVDemuxContext* c, uint8_t* frame)
             c->audio_pkt[i].stream_index = c->ast[i]->index;
             c->audio_pkt[i].flags       |= AV_PKT_FLAG_KEY;
         }
-        c->ast[i]->codec->sample_rate = dv_audio_frequency[freq];
-        c->ast[i]->codec->channels    = 2;
+        c->ast[i]->codec->sample_rate    = dv_audio_frequency[freq];
+        c->ast[i]->codec->channels       = 2;
         c->ast[i]->codec->channel_layout = AV_CH_LAYOUT_STEREO;
-        c->ast[i]->codec->bit_rate    = 2 * dv_audio_frequency[freq] * 16;
-        c->ast[i]->start_time         = 0;
+        c->ast[i]->codec->bit_rate       = 2 * dv_audio_frequency[freq] * 16;
+        c->ast[i]->start_time            = 0;
     }
     c->ach = i;
 
-    return (c->sys->audio_min_samples[freq] + smpls) * 4; /* 2ch, 2bytes */;
+    return (c->sys->audio_min_samples[freq] + smpls) * 4; /* 2ch, 2bytes */
 }
 
-static int dv_extract_video_info(DVDemuxContext *c, uint8_t* frame)
+static int dv_extract_video_info(DVDemuxContext *c, uint8_t *frame)
 {
-    const uint8_t* vsc_pack;
-    AVCodecContext* avctx;
+    const uint8_t *vsc_pack;
+    AVCodecContext *avctx;
     int apt, is16_9;
     int size = 0;
 
@@ -268,9 +277,9 @@ static int dv_extract_video_info(DVDemuxContext *c, uint8_t* frame)
 
         avpriv_set_pts_info(c->vst, 64, c->sys->time_base.num,
                             c->sys->time_base.den);
-        avctx->time_base= c->sys->time_base;
-        if (!avctx->width){
-            avctx->width = c->sys->width;
+        avctx->time_base = c->sys->time_base;
+        if (!avctx->width) {
+            avctx->width  = c->sys->width;
             avctx->height = c->sys->height;
         }
         avctx->pix_fmt = c->sys->pix_fmt;
@@ -281,18 +290,17 @@ static int dv_extract_video_info(DVDemuxContext *c, uint8_t* frame)
         is16_9   = (vsc_pack && ((vsc_pack[2] & 0x07) == 0x02 ||
                                  (!apt && (vsc_pack[2] & 0x07) == 0x07)));
         c->vst->sample_aspect_ratio = c->sys->sar[is16_9];
-        avctx->bit_rate = av_rescale_q(c->sys->frame_size, (AVRational){8,1},
+        avctx->bit_rate = av_rescale_q(c->sys->frame_size,
+                                       (AVRational) { 8, 1 },
                                        c->sys->time_base);
         size = c->sys->frame_size;
     }
     return size;
 }
 
-/*
- * The following 3 functions constitute our interface to the world
- */
+/* The following 3 functions constitute our interface to the world */
 
-DVDemuxContext* avpriv_dv_init_demux(AVFormatContext *s)
+DVDemuxContext *avpriv_dv_init_demux(AVFormatContext *s)
 {
     DVDemuxContext *c;
 
@@ -322,9 +330,9 @@ int avpriv_dv_get_packet(DVDemuxContext *c, AVPacket *pkt)
 
     for (i = 0; i < c->ach; i++) {
         if (c->ast[i] && c->audio_pkt[i].size) {
-            *pkt = c->audio_pkt[i];
+            *pkt                 = c->audio_pkt[i];
             c->audio_pkt[i].size = 0;
-            size = pkt->size;
+            size                 = pkt->size;
             break;
         }
     }
@@ -333,10 +341,10 @@ int avpriv_dv_get_packet(DVDemuxContext *c, AVPacket *pkt)
 }
 
 int avpriv_dv_produce_packet(DVDemuxContext *c, AVPacket *pkt,
-                      uint8_t* buf, int buf_size)
+                             uint8_t *buf, int buf_size)
 {
     int size, i;
-    uint8_t *ppcm[4] = {0};
+    uint8_t *ppcm[4] = { 0 };
 
     if (buf_size < DV_PROFILE_BYTES ||
         !(c->sys = avpriv_dv_frame_profile(c->sys, buf, buf_size)) ||
@@ -349,7 +357,8 @@ int avpriv_dv_produce_packet(DVDemuxContext *c, AVPacket *pkt,
     size = dv_extract_audio_info(c, buf);
     for (i = 0; i < c->ach; i++) {
         c->audio_pkt[i].size = size;
-        c->audio_pkt[i].pts  = c->abytes * 30000 * 8 / c->ast[i]->codec->bit_rate;
+        c->audio_pkt[i].pts  = c->abytes * 30000 * 8 /
+                               c->ast[i]->codec->bit_rate;
         ppcm[i] = c->audio_buf[i];
     }
     if (c->ach)
@@ -362,7 +371,7 @@ int avpriv_dv_produce_packet(DVDemuxContext *c, AVPacket *pkt,
             c->audio_pkt[2].size = c->audio_pkt[3].size = 0;
         } else {
             c->audio_pkt[0].size = c->audio_pkt[1].size = 0;
-            c->abytes += size;
+            c->abytes           += size;
         }
     } else {
         c->abytes += size;
@@ -383,28 +392,31 @@ int avpriv_dv_produce_packet(DVDemuxContext *c, AVPacket *pkt,
 }
 
 static int64_t dv_frame_offset(AVFormatContext *s, DVDemuxContext *c,
-                              int64_t timestamp, int flags)
+                               int64_t timestamp, int flags)
 {
     // FIXME: sys may be wrong if last dv_read_packet() failed (buffer is junk)
-    const DVprofile* sys = avpriv_dv_codec_profile(c->vst->codec);
+    const DVprofile *sys = avpriv_dv_codec_profile(c->vst->codec);
     int64_t offset;
-    int64_t size = avio_size(s->pb) - s->data_offset;
-    int64_t max_offset = ((size-1) / sys->frame_size) * sys->frame_size;
+    int64_t size       = avio_size(s->pb) - s->data_offset;
+    int64_t max_offset = ((size - 1) / sys->frame_size) * sys->frame_size;
 
     offset = sys->frame_size * timestamp;
 
-    if (size >= 0 && offset > max_offset) offset = max_offset;
-    else if (offset < 0) offset = 0;
+    if (size >= 0 && offset > max_offset)
+        offset = max_offset;
+    else if (offset < 0)
+        offset = 0;
 
     return offset + s->data_offset;
 }
 
 void ff_dv_offset_reset(DVDemuxContext *c, int64_t frame_offset)
 {
-    c->frames= frame_offset;
+    c->frames = frame_offset;
     if (c->ach)
-        c->abytes= av_rescale_q(c->frames, c->sys->time_base,
-                                (AVRational){8, c->ast[0]->codec->bit_rate});
+        c->abytes = av_rescale_q(c->frames, c->sys->time_base,
+                                 (AVRational) { 8, c->ast[0]->codec->bit_rate });
+
     c->audio_pkt[0].size = c->audio_pkt[1].size = 0;
     c->audio_pkt[2].size = c->audio_pkt[3].size = 0;
 }
@@ -414,7 +426,7 @@ void ff_dv_offset_reset(DVDemuxContext *c, int64_t frame_offset)
  ************************************************************/
 
 typedef struct RawDVContext {
-    DVDemuxContext* dv_demux;
+    DVDemuxContext *dv_demux;
     uint8_t         buf[DV_MAX_FRAME_SIZE];
 } RawDVContext;
 
@@ -448,19 +460,22 @@ static int dv_read_header(AVFormatContext *s)
         avio_seek(s->pb, -DV_PROFILE_BYTES, SEEK_CUR) < 0)
         return AVERROR(EIO);
 
-    c->dv_demux->sys = avpriv_dv_frame_profile(c->dv_demux->sys, c->buf, DV_PROFILE_BYTES);
+    c->dv_demux->sys = avpriv_dv_frame_profile(c->dv_demux->sys,
+                                               c->buf,
+                                               DV_PROFILE_BYTES);
     if (!c->dv_demux->sys) {
-        av_log(s, AV_LOG_ERROR, "Can't determine profile of DV input stream.\n");
+        av_log(s, AV_LOG_ERROR,
+               "Can't determine profile of DV input stream.\n");
         return -1;
     }
 
-    s->bit_rate = av_rescale_q(c->dv_demux->sys->frame_size, (AVRational){8,1},
+    s->bit_rate = av_rescale_q(c->dv_demux->sys->frame_size,
+                               (AVRational) { 8, 1 },
                                c->dv_demux->sys->time_base);
 
     return 0;
 }
 
-
 static int dv_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     int size;
@@ -482,7 +497,7 @@ static int dv_read_packet(AVFormatContext *s, AVPacket *pkt)
 }
 
 static int dv_read_seek(AVFormatContext *s, int stream_index,
-                       int64_t timestamp, int flags)
+                        int64_t timestamp, int flags)
 {
     RawDVContext *r   = s->priv_data;
     DVDemuxContext *c = r->dv_demux;
@@ -506,7 +521,7 @@ static int dv_probe(AVProbeData *p)
 {
     unsigned state, marker_pos = 0;
     int i;
-    int matches = 0;
+    int matches           = 0;
     int secondary_matches = 0;
 
     if (p->buf_size < 5)
@@ -527,10 +542,13 @@ static int dv_probe(AVProbeData *p)
         state = (state << 8) | p->buf[i];
     }
 
-    if (matches && p->buf_size / matches < 1024*1024) {
-        if (matches > 4 || (secondary_matches >= 10 && p->buf_size / secondary_matches < 24000))
-            return AVPROBE_SCORE_MAX*3/4; // not max to avoid dv in mov to match
-        return AVPROBE_SCORE_MAX/4;
+    if (matches && p->buf_size / matches < 1024 * 1024) {
+        if (matches > 4 ||
+            (secondary_matches >= 10 &&
+             p->buf_size / secondary_matches < 24000))
+            // not max to avoid dv in mov to match
+            return AVPROBE_SCORE_MAX * 3 / 4;
+        return AVPROBE_SCORE_MAX / 4;
     }
     return 0;
 }