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v4l: attempt to fix strict aliasing warnings.

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Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
This commit is contained in:
Alexis Ballier 2009-09-27 12:31:38 +02:00 committed by Rémi Denis-Courmont
parent 1fb78f4783
commit c2d2e2bb4d
1 changed files with 12 additions and 12 deletions
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24
modules/access/v4l.c
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@ -837,7 +837,7 @@ static int OpenVideoDev( demux_t *p_demux, char *psz_device )
* or height */
if( p_sys->b_mjpeg )
{
struct quicktime_mjpeg_app1 *p_app1;
struct quicktime_mjpeg_app1 p_app1;
int32_t i_offset;
if( ioctl( i_fd, MJPIOC_G_PARAMS, &mjpeg ) < 0 )
@ -859,12 +859,11 @@ static int OpenVideoDev( demux_t *p_demux, char *psz_device )
mjpeg.APP_len = 40;
/* aligned */
p_app1 = (struct quicktime_mjpeg_app1 *)mjpeg.APP_data;
p_app1->i_reserved = 0;
p_app1->i_tag = VLC_FOURCC( 'm','j','p','g' );
p_app1->i_field_size = 0;
p_app1->i_padded_field_size = 0;
p_app1->i_next_field = 0;
p_app1.i_reserved = 0;
p_app1.i_tag = VLC_FOURCC( 'm','j','p','g' );
p_app1.i_field_size = 0;
p_app1.i_padded_field_size = 0;
p_app1.i_next_field = 0;
/* XXX WARNING XXX */
/* these's nothing magic about these values. We are dangerously
* assuming the encoder card is encoding mjpeg-a and is not throwing
@ -876,15 +875,16 @@ static int OpenVideoDev( demux_t *p_demux, char *psz_device )
* does conform to standards outside of Apple Quicktime.
*/
i_offset = 0x2e;
p_app1->i_DQT_offset = hton32( i_offset );
p_app1.i_DQT_offset = hton32( i_offset );
i_offset = 0xb4;
p_app1->i_DHT_offset = hton32( i_offset );
p_app1.i_DHT_offset = hton32( i_offset );
i_offset = 0x258;
p_app1->i_SOF_offset = hton32( i_offset );
p_app1.i_SOF_offset = hton32( i_offset );
i_offset = 0x26b;
p_app1->i_SOS_offset = hton32( i_offset );
p_app1.i_SOS_offset = hton32( i_offset );
i_offset = 0x279;
p_app1->i_data_offset = hton32( i_offset );
p_app1.i_data_offset = hton32( i_offset );
memcpy(mjpeg.APP_data, &p_app1, sizeof(struct quicktime_mjpeg_app1));
/* SOF and SOS aren't specified by the mjpeg API because they aren't
* optional. They will be present in the output. */