diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2012-12-09 17:08:01 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2012-12-09 17:08:01 +0400 |
commit | 1374b5e15b5dd900bb5a69d78491b793db1c7f38 (patch) | |
tree | 17020da146a8d0bb3ead129d9d8727911b839732 /libavformat/aviobuf.c | |
parent | e7d924da30f0bd3cb680f45246526d312d2d2d6f (diff) | |
parent | 1dd1c1c884b2038291fdabf3916b0a3f88ac6411 (diff) |
Merge remote-tracking branch 'qatar/master'
* qatar/master:
avio: K&R cosmetic formatting
Conflicts:
libavformat/aviobuf.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/aviobuf.c')
-rw-r--r-- | libavformat/aviobuf.c | 122 |
1 files changed, 67 insertions, 55 deletions
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c index 906415dbac..6733b59dab 100644 --- a/libavformat/aviobuf.c +++ b/libavformat/aviobuf.c @@ -77,28 +77,32 @@ int ffio_init_context(AVIOContext *s, int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), int64_t (*seek)(void *opaque, int64_t offset, int whence)) { - s->buffer = buffer; + s->buffer = buffer; s->buffer_size = buffer_size; - s->buf_ptr = buffer; - s->opaque = opaque; - s->direct = 0; + s->buf_ptr = buffer; + s->opaque = opaque; + s->direct = 0; + url_resetbuf(s, write_flag ? AVIO_FLAG_WRITE : AVIO_FLAG_READ); - s->write_packet = write_packet; - s->read_packet = read_packet; - s->seek = seek; - s->pos = 0; - s->must_flush = 0; - s->eof_reached = 0; - s->error = 0; - s->seekable = AVIO_SEEKABLE_NORMAL; + + s->write_packet = write_packet; + s->read_packet = read_packet; + s->seek = seek; + s->pos = 0; + s->must_flush = 0; + s->eof_reached = 0; + s->error = 0; + s->seekable = AVIO_SEEKABLE_NORMAL; s->max_packet_size = 0; - s->update_checksum= NULL; - if(!read_packet && !write_flag){ - s->pos = buffer_size; + s->update_checksum = NULL; + + if (!read_packet && !write_flag) { + s->pos = buffer_size; s->buf_end = s->buffer + buffer_size; } s->read_pause = NULL; s->read_seek = NULL; + return 0; } @@ -121,9 +125,9 @@ AVIOContext *avio_alloc_context( static void writeout(AVIOContext *s, const uint8_t *data, int len) { - if (s->write_packet && !s->error){ - int ret= s->write_packet(s->opaque, (uint8_t *)data, len); - if(ret < 0){ + if (s->write_packet && !s->error) { + int ret = s->write_packet(s->opaque, (uint8_t *)data, len); + if (ret < 0) { s->error = ret; } } @@ -134,9 +138,10 @@ static void flush_buffer(AVIOContext *s) { if (s->buf_ptr > s->buffer) { writeout(s, s->buffer, s->buf_ptr - s->buffer); - if(s->update_checksum){ - s->checksum= s->update_checksum(s->checksum, s->checksum_ptr, s->buf_ptr - s->checksum_ptr); - s->checksum_ptr= s->buffer; + if (s->update_checksum) { + s->checksum = s->update_checksum(s->checksum, s->checksum_ptr, + s->buf_ptr - s->checksum_ptr); + s->checksum_ptr = s->buffer; } } s->buf_ptr = s->buffer; @@ -256,13 +261,13 @@ int64_t avio_size(AVIOContext *s) { int64_t size; - if(!s) + if (!s) return AVERROR(EINVAL); if (!s->seek) return AVERROR(ENOSYS); size = s->seek(s->opaque, 0, AVSEEK_SIZE); - if(size<0){ + if (size < 0) { if ((size = s->seek(s->opaque, -1, SEEK_END)) < 0) return size; size++; @@ -319,29 +324,31 @@ int avio_put_str16le(AVIOContext *s, const char *str) uint16_t tmp; GET_UTF8(ch, *q++, break;) - PUT_UTF16(ch, tmp, avio_wl16(s, tmp);ret += 2;) + PUT_UTF16(ch, tmp, avio_wl16(s, tmp); ret += 2;) } avio_wl16(s, 0); ret += 2; return ret; } -int ff_get_v_length(uint64_t val){ - int i=1; +int ff_get_v_length(uint64_t val) +{ + int i = 1; - while(val>>=7) + while (val >>= 7) i++; return i; } -void ff_put_v(AVIOContext *bc, uint64_t val){ - int i= ff_get_v_length(val); +void ff_put_v(AVIOContext *bc, uint64_t val) +{ + int i = ff_get_v_length(val); - while(--i>0) - avio_w8(bc, 128 | (uint8_t)(val>>(7*i))); + while (--i > 0) + avio_w8(bc, 128 | (uint8_t)(val >> (7*i))); - avio_w8(bc, val&127); + avio_w8(bc, val & 127); } void avio_wl64(AVIOContext *s, uint64_t val) @@ -384,9 +391,12 @@ void avio_wb24(AVIOContext *s, unsigned int val) static void fill_buffer(AVIOContext *s) { - uint8_t *dst= !s->max_packet_size && s->buf_end - s->buffer < s->buffer_size ? s->buf_end : s->buffer; - int len= s->buffer_size - (dst - s->buffer); - int max_buffer_size = s->max_packet_size ? s->max_packet_size : IO_BUFFER_SIZE; + uint8_t *dst = !s->max_packet_size && + s->buf_end - s->buffer < s->buffer_size ? + s->buf_end : s->buffer; + int len = s->buffer_size - (dst - s->buffer); + int max_buffer_size = s->max_packet_size ? + s->max_packet_size : IO_BUFFER_SIZE; /* can't fill the buffer without read_packet, just set EOF if appropriate */ if (!s->read_packet && s->buf_ptr >= s->buf_end) @@ -396,10 +406,11 @@ static void fill_buffer(AVIOContext *s) if (s->eof_reached) return; - if(s->update_checksum && dst == s->buffer){ - if(s->buf_end > s->checksum_ptr) - s->checksum= s->update_checksum(s->checksum, s->checksum_ptr, s->buf_end - s->checksum_ptr); - s->checksum_ptr= s->buffer; + if (s->update_checksum && dst == s->buffer) { + if (s->buf_end > s->checksum_ptr) + s->checksum = s->update_checksum(s->checksum, s->checksum_ptr, + s->buf_end - s->checksum_ptr); + s->checksum_ptr = s->buffer; } /* make buffer smaller in case it ended up large after probing */ @@ -410,7 +421,7 @@ static void fill_buffer(AVIOContext *s) len = s->buffer_size; } - if(s->read_packet) + if (s->read_packet) len = s->read_packet(s->opaque, dst, len); else len = 0; @@ -418,8 +429,8 @@ static void fill_buffer(AVIOContext *s) /* do not modify buffer if EOF reached so that a seek back can be done without rereading data */ s->eof_reached = 1; - if(len<0) - s->error= len; + if (len < 0) + s->error = len; } else { s->pos += len; s->buf_ptr = dst; @@ -436,8 +447,9 @@ unsigned long ff_crc04C11DB7_update(unsigned long checksum, const uint8_t *buf, unsigned long ffio_get_checksum(AVIOContext *s) { - s->checksum= s->update_checksum(s->checksum, s->checksum_ptr, s->buf_ptr - s->checksum_ptr); - s->update_checksum= NULL; + s->checksum = s->update_checksum(s->checksum, s->checksum_ptr, + s->buf_ptr - s->checksum_ptr); + s->update_checksum = NULL; return s->checksum; } @@ -445,10 +457,10 @@ void ffio_init_checksum(AVIOContext *s, unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len), unsigned long checksum) { - s->update_checksum= update_checksum; - if(s->update_checksum){ - s->checksum= checksum; - s->checksum_ptr= s->buf_ptr; + s->update_checksum = update_checksum; + if (s->update_checksum) { + s->checksum = checksum; + s->checksum_ptr = s->buf_ptr; } } @@ -490,7 +502,7 @@ int avio_read(AVIOContext *s, unsigned char *buf, int size) s->buf_ptr = s->buffer; s->buf_end = s->buffer/* + len*/; } - }else{ + } else { fill_buffer(s); len = s->buf_end - s->buf_ptr; if (len == 0) @@ -514,7 +526,7 @@ int ffio_read_partial(AVIOContext *s, unsigned char *buf, int size) { int len; - if(size<0) + if (size < 0) return -1; len = s->buf_end - s->buf_ptr; @@ -842,7 +854,7 @@ int64_t avio_seek_time(AVIOContext *s, int stream_index, if (!s->read_seek) return AVERROR(ENOSYS); ret = s->read_seek(h, stream_index, timestamp, flags); - if(ret >= 0) { + if (ret >= 0) { int64_t pos; s->buf_ptr = s->buf_end; // Flush buffer pos = s->seek(h, 0, SEEK_CUR); @@ -871,7 +883,7 @@ static int dyn_buf_write(void *opaque, uint8_t *buf, int buf_size) /* reallocate buffer if needed */ new_size = d->pos + buf_size; new_allocated_size = d->allocated_size; - if(new_size < d->pos || new_size > INT_MAX/2) + if (new_size < d->pos || new_size > INT_MAX/2) return -1; while (new_size > new_allocated_size) { if (!new_allocated_size) @@ -900,8 +912,8 @@ static int dyn_packet_buf_write(void *opaque, uint8_t *buf, int buf_size) /* packetized write: output the header */ AV_WB32(buf1, buf_size); - ret= dyn_buf_write(opaque, buf1, 4); - if(ret < 0) + ret = dyn_buf_write(opaque, buf1, 4); + if (ret < 0) return ret; /* then the data */ @@ -927,7 +939,7 @@ static int url_open_dyn_buf_internal(AVIOContext **s, int max_packet_size) DynBuffer *d; unsigned io_buffer_size = max_packet_size ? max_packet_size : 1024; - if(sizeof(DynBuffer) + io_buffer_size < io_buffer_size) + if (sizeof(DynBuffer) + io_buffer_size < io_buffer_size) return -1; d = av_mallocz(sizeof(DynBuffer) + io_buffer_size); if (!d) |