generic-library/ffmpeg
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Add the transfer of the new parameters from ffmpeg to ffserver and vice-versa

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This adds functions to send and receive doubles and also null terminated strings.

Originally committed as revision 919 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Philip Gladstone 2002-09-12 02:26:58 +00:00
parent 208d3ddf96
commit 75bdb984c7
3 changed files with 65 additions and 3 deletions
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7
libav/avio.h
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@ -78,7 +78,7 @@ int init_put_byte(ByteIOContext *s,
int (*seek)(void *opaque, offset_t offset, int whence));
void put_byte(ByteIOContext *s, int b);
void put_buffer(ByteIOContext *s, unsigned char *buf, int size);
void put_buffer(ByteIOContext *s, const unsigned char *buf, int size);
void put_le64(ByteIOContext *s, UINT64 val);
void put_be64(ByteIOContext *s, UINT64 val);
void put_le32(ByteIOContext *s, unsigned int val);
@ -87,6 +87,9 @@ void put_le16(ByteIOContext *s, unsigned int val);
void put_be16(ByteIOContext *s, unsigned int val);
void put_tag(ByteIOContext *s, char *tag);
void put_native_double(ByteIOContext *s, double val);
void put_native_string(ByteIOContext *s, const char *buf);
offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence);
void url_fskip(ByteIOContext *s, offset_t offset);
offset_t url_ftell(ByteIOContext *s);
@ -105,6 +108,8 @@ unsigned int get_le32(ByteIOContext *s);
UINT64 get_le64(ByteIOContext *s);
unsigned int get_le16(ByteIOContext *s);
double get_native_double(ByteIOContext *s);
char *get_native_string(ByteIOContext *s, char *buf, int maxlen);
unsigned int get_be16(ByteIOContext *s);
unsigned int get_be32(ByteIOContext *s);
UINT64 get_be64(ByteIOContext *s);

39
libav/aviobuf.c
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@ -68,7 +68,7 @@ void put_byte(ByteIOContext *s, int b)
flush_buffer(s);
}
void put_buffer(ByteIOContext *s, unsigned char *buf, int size)
void put_buffer(ByteIOContext *s, const unsigned char *buf, int size)
{
int len;
@ -176,6 +176,19 @@ void put_be32(ByteIOContext *s, unsigned int val)
put_byte(s, val);
}
void put_native_double(ByteIOContext *s, double val)
{
put_buffer(s, (const unsigned char *) &val, sizeof(val));
}
void put_native_string(ByteIOContext *s, const char *str)
{
if (str)
put_buffer(s, (const unsigned char *) str, strlen(str) + 1);
else
put_byte(s, 0);
}
void put_le64(ByteIOContext *s, UINT64 val)
{
put_le32(s, (UINT32)(val & 0xffffffff));
@ -326,6 +339,30 @@ unsigned int get_be32(ByteIOContext *s)
return val;
}
double get_native_double(ByteIOContext *s)
{
double val;
get_buffer(s, (unsigned char *) &val, sizeof(val));
return val;
}
char *get_native_string(ByteIOContext *s, char *buf, int maxlen)
{
int i = 0;
char c;
while ((c = get_byte(s))) {
if (i < maxlen-1)
buf[i++] = c;
}
buf[i] = 0; /* Ensure null terminated, but may be truncated */
return buf;
}
UINT64 get_be64(ByteIOContext *s)
{
UINT64 val;

22
libav/ffm.c
View File

@ -166,6 +166,15 @@ static int ffm_write_header(AVFormatContext *s)
put_be16(pb, (int) (codec->qcompress * 10000.0));
put_be16(pb, (int) (codec->qblur * 10000.0));
put_be32(pb, codec->bit_rate_tolerance);
put_native_string(pb, codec->rc_eq);
put_be32(pb, codec->rc_max_rate);
put_be32(pb, codec->rc_min_rate);
put_be32(pb, codec->rc_buffer_size);
put_native_double(pb, codec->i_quant_factor);
put_native_double(pb, codec->b_quant_factor);
put_native_double(pb, codec->i_quant_offset);
put_native_double(pb, codec->b_quant_offset);
put_be32(pb, codec->dct_algo);
break;
case CODEC_TYPE_AUDIO:
put_be32(pb, codec->sample_rate);
@ -380,6 +389,8 @@ static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap)
get_be32(pb); /* total bitrate */
/* read each stream */
for(i=0;i<s->nb_streams;i++) {
char rc_eq_buf[128];
st = av_mallocz(sizeof(AVStream));
if (!st)
goto fail;
@ -409,6 +420,15 @@ static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap)
codec->qcompress = get_be16(pb) / 10000.0;
codec->qblur = get_be16(pb) / 10000.0;
codec->bit_rate_tolerance = get_be32(pb);
codec->rc_eq = strdup(get_native_string(pb, rc_eq_buf, sizeof(rc_eq_buf)));
codec->rc_max_rate = get_be32(pb);
codec->rc_min_rate = get_be32(pb);
codec->rc_buffer_size = get_be32(pb);
codec->i_quant_factor = get_native_double(pb);
codec->b_quant_factor = get_native_double(pb);
codec->i_quant_offset = get_native_double(pb);
codec->b_quant_offset = get_native_double(pb);
codec->dct_algo = get_be32(pb);
break;
case CODEC_TYPE_AUDIO:
codec->sample_rate = get_be32(pb);
@ -416,7 +436,7 @@ static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap)
codec->frame_size = get_le16(pb);
break;
default:
av_abort();
goto fail;
}
}