* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
+
#include "avformat.h"
#include "internal.h"
-enum SIFFTags{
+enum SIFFTags {
TAG_SIFF = MKTAG('S', 'I', 'F', 'F'),
TAG_BODY = MKTAG('B', 'O', 'D', 'Y'),
TAG_VBHD = MKTAG('V', 'B', 'H', 'D'),
TAG_SOUN = MKTAG('S', 'O', 'U', 'N'),
};
-enum VBFlags{
+enum VBFlags {
VB_HAS_GMC = 0x01,
VB_HAS_AUDIO = 0x04,
VB_HAS_VIDEO = 0x08,
VB_HAS_LENGTH = 0x20
};
-typedef struct SIFFContext{
+typedef struct SIFFContext {
int frames;
int cur_frame;
int rate;
int flags;
uint8_t gmc[4];
-}SIFFContext;
+} SIFFContext;
static int siff_probe(AVProbeData *p)
{
AVStream *ast;
ast = avformat_new_stream(s, NULL);
if (!ast)
- return -1;
- ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- ast->codec->codec_id = AV_CODEC_ID_PCM_U8;
- ast->codec->channels = 1;
+ return AVERROR(ENOMEM);
+ ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+ ast->codec->codec_id = AV_CODEC_ID_PCM_U8;
+ ast->codec->channels = 1;
+ ast->codec->channel_layout = AV_CH_LAYOUT_MONO;
ast->codec->bits_per_coded_sample = 8;
- ast->codec->sample_rate = c->rate;
+ ast->codec->sample_rate = c->rate;
avpriv_set_pts_info(ast, 16, 1, c->rate);
- ast->start_time = 0;
+ ast->start_time = 0;
return 0;
}
AVStream *st;
int width, height;
- if (avio_rl32(pb) != TAG_VBHD){
+ if (avio_rl32(pb) != TAG_VBHD) {
av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if(avio_rb32(pb) != 32){
+ if (avio_rb32(pb) != 32) {
av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if(avio_rl16(pb) != 1){
+ if (avio_rl16(pb) != 1) {
av_log(s, AV_LOG_ERROR, "Incorrect header version\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- width = avio_rl16(pb);
+ width = avio_rl16(pb);
height = avio_rl16(pb);
avio_skip(pb, 4);
c->frames = avio_rl16(pb);
- if(!c->frames){
+ if (!c->frames) {
av_log(s, AV_LOG_ERROR, "File contains no frames ???\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- c->bits = avio_rl16(pb);
- c->rate = avio_rl16(pb);
+ c->bits = avio_rl16(pb);
+ c->rate = avio_rl16(pb);
c->block_align = c->rate * (c->bits >> 3);
- avio_skip(pb, 16); //zeroes
+ avio_skip(pb, 16); // zeroes
st = avformat_new_stream(s, NULL);
if (!st)
- return -1;
+ return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_VB;
st->codec->codec_tag = MKTAG('V', 'B', 'V', '1');
st->codec->width = width;
st->codec->height = height;
- st->codec->pix_fmt = PIX_FMT_PAL8;
+ st->codec->pix_fmt = AV_PIX_FMT_PAL8;
avpriv_set_pts_info(st, 16, 1, 12);
c->cur_frame = 0;
c->has_video = 1;
c->has_audio = !!c->rate;
- c->curstrm = -1;
- if (c->has_audio && create_audio_stream(s, c) < 0)
- return -1;
+ c->curstrm = -1;
+ if (c->has_audio)
+ return create_audio_stream(s, c);
return 0;
}
static int siff_parse_soun(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
{
- if (avio_rl32(pb) != TAG_SHDR){
+ if (avio_rl32(pb) != TAG_SHDR) {
av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if(avio_rb32(pb) != 8){
+ if (avio_rb32(pb) != 8) {
av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- avio_skip(pb, 4); //unknown value
- c->rate = avio_rl16(pb);
- c->bits = avio_rl16(pb);
+ avio_skip(pb, 4); // unknown value
+ c->rate = avio_rl16(pb);
+ c->bits = avio_rl16(pb);
c->block_align = c->rate * (c->bits >> 3);
return create_audio_stream(s, c);
}
static int siff_read_header(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
- SIFFContext *c = s->priv_data;
+ SIFFContext *c = s->priv_data;
uint32_t tag;
+ int ret;
if (avio_rl32(pb) != TAG_SIFF)
- return -1;
- avio_skip(pb, 4); //ignore size
+ return AVERROR_INVALIDDATA;
+ avio_skip(pb, 4); // ignore size
tag = avio_rl32(pb);
- if (tag != TAG_VBV1 && tag != TAG_SOUN){
+ if (tag != TAG_VBV1 && tag != TAG_SOUN) {
av_log(s, AV_LOG_ERROR, "Not a VBV file\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if (tag == TAG_VBV1 && siff_parse_vbv1(s, c, pb) < 0)
- return -1;
- if (tag == TAG_SOUN && siff_parse_soun(s, c, pb) < 0)
- return -1;
- if (avio_rl32(pb) != MKTAG('B', 'O', 'D', 'Y')){
+ if (tag == TAG_VBV1 && (ret = siff_parse_vbv1(s, c, pb)) < 0)
+ return ret;
+ if (tag == TAG_SOUN && (ret = siff_parse_soun(s, c, pb)) < 0)
+ return ret;
+ if (avio_rl32(pb) != MKTAG('B', 'O', 'D', 'Y')) {
av_log(s, AV_LOG_ERROR, "'BODY' chunk is missing\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- avio_skip(pb, 4); //ignore size
+ avio_skip(pb, 4); // ignore size
return 0;
}
SIFFContext *c = s->priv_data;
int size;
- if (c->has_video){
+ if (c->has_video) {
if (c->cur_frame >= c->frames)
return AVERROR(EIO);
- if (c->curstrm == -1){
+ if (c->curstrm == -1) {
c->pktsize = avio_rl32(s->pb) - 4;
- c->flags = avio_rl16(s->pb);
+ c->flags = avio_rl16(s->pb);
c->gmcsize = (c->flags & VB_HAS_GMC) ? 4 : 0;
if (c->gmcsize)
avio_read(s->pb, c->gmc, c->gmcsize);
- c->sndsize = (c->flags & VB_HAS_AUDIO) ? avio_rl32(s->pb): 0;
+ c->sndsize = (c->flags & VB_HAS_AUDIO) ? avio_rl32(s->pb) : 0;
c->curstrm = !!(c->flags & VB_HAS_AUDIO);
}
- if (!c->curstrm){
+ if (!c->curstrm) {
size = c->pktsize - c->sndsize;
if (av_new_packet(pkt, size) < 0)
return AVERROR(ENOMEM);
memcpy(pkt->data + 2, c->gmc, c->gmcsize);
avio_read(s->pb, pkt->data + 2 + c->gmcsize, size - c->gmcsize - 2);
pkt->stream_index = 0;
- c->curstrm = -1;
- }else{
+ c->curstrm = -1;
+ } else {
if ((size = av_get_packet(s->pb, pkt, c->sndsize - 4)) < 0)
return AVERROR(EIO);
pkt->stream_index = 1;
pkt->duration = size;
- c->curstrm = 0;
+ c->curstrm = 0;
}
- if(!c->cur_frame || c->curstrm)
+ if (!c->cur_frame || c->curstrm)
pkt->flags |= AV_PKT_FLAG_KEY;
if (c->curstrm == -1)
c->cur_frame++;
- }else{
+ } else {
size = av_get_packet(s->pb, pkt, c->block_align);
- if(size <= 0)
+ if (size <= 0)
return AVERROR(EIO);
pkt->duration = size;
}
projects / ffmpeg / blobdiff