#include "avformat.h"
#include "avio.h"
#include <stdarg.h>
+#include <unistd.h>
+#include <malloc.h>
#define IO_BUFFER_SIZE 32768
return s;
}
+#define BLOCK_SIZE 512
+
static void flush_buffer(ByteIOContext *s)
{
+ size_t data_len = s->buf_ptr - s->buffer;
+ size_t to_write = (data_len + BLOCK_SIZE - 1) & ~(BLOCK_SIZE - 1);
+ int64_t res = AVERROR(EPIPE);
+ av_log(NULL, AV_LOG_ERROR, "YYY dl=%u, tw=%u\n", data_len, to_write);
if (s->buf_ptr > s->buffer) {
if (s->write_packet && !s->error){
- int ret= s->write_packet(s->opaque, s->buffer, s->buf_ptr - s->buffer);
+ int ret= s->write_packet(s->opaque, s->buffer, to_write);
if(ret < 0){
s->error = ret;
}
}
if(s->update_checksum){
+ av_log(NULL, AV_LOG_ERROR, "Checksumming not implemented in O_DIRECT patch\n");
s->checksum= s->update_checksum(s->checksum, s->checksum_ptr, s->buf_ptr - s->checksum_ptr);
s->checksum_ptr= s->buffer;
}
- s->pos += s->buf_ptr - s->buffer;
+ s->pos += to_write - BLOCK_SIZE;
+ memcpy(s->buffer, &s->buffer[to_write], data_len - to_write + BLOCK_SIZE);
+ s->buf_ptr -= to_write - BLOCK_SIZE;
+
+ if (s->seek)
+ res = s->seek(s->opaque, s->pos, SEEK_SET);
+ if (res < 0)
+ av_log(NULL, AV_LOG_ERROR, "seek error inside flush_buffer: %lld\n", res);
+ av_log(NULL, AV_LOG_ERROR, "ZZZ tw=%u, pos=%d\n", to_write, s->pos);
}
- s->buf_ptr = s->buffer;
}
void put_byte(ByteIOContext *s, int b)
return offset1;
offset += offset1;
}
+ av_log(NULL, AV_LOG_ERROR, "SEEK to %llu\n", offset);
+
offset1 = offset - pos;
if (!s->must_flush &&
offset1 >= 0 && offset1 <= (s->buf_end - s->buffer)) {
s->must_flush = 1;
}
#endif /* CONFIG_MUXERS || CONFIG_NETWORK */
+#warning TODO read the whole block from the file to the buffer
if (!s->seek || (res = s->seek(s->opaque, offset, SEEK_SET)) < 0)
return res;
if (!s->write_flag)
} else {
buffer_size = IO_BUFFER_SIZE;
}
- buffer = av_malloc(buffer_size);
+ buffer_size = 2*buffer_size+BLOCK_SIZE;
+ buffer = memalign(sysconf(_SC_PAGESIZE), buffer_size);
if (!buffer)
return AVERROR(ENOMEM);