* @see http://www.svatopluk.com/andux/docs/dfvid.html
*/
+#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "internal.h"
{
int nframes;
int sample_rate; /**< audio sample rate */
+ int width; /**< video width */
+ int height; /**< video height */
/** delay value between frames, added to individual frame delay.
* custom units, which will be added to other custom units (~=16ms according
* to free, unofficial documentation) */
static int vid_probe(AVProbeData *p)
{
- // little endian VID tag, file starts with "VID\0"
+ // little-endian VID tag, file starts with "VID\0"
if (AV_RL32(p->buf) != MKTAG('V', 'I', 'D', 0))
return 0;
{
BVID_DemuxContext *vid = s->priv_data;
AVIOContext *pb = s->pb;
- AVStream *stream;
/* load main header. Contents:
* bytes: 'V' 'I' 'D'
*/
avio_skip(pb, 5);
vid->nframes = avio_rl16(pb);
-
- stream = avformat_new_stream(s, NULL);
- if (!stream)
- return AVERROR(ENOMEM);
- vid->video_index = stream->index;
- stream->start_time = 0;
- avpriv_set_pts_info(stream, 32, 1, 60); // 16 ms increments, i.e. 60 fps
- stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- stream->codec->codec_id = CODEC_ID_BETHSOFTVID;
- stream->codec->width = avio_rl16(pb);
- stream->codec->height = avio_rl16(pb);
- stream->codec->pix_fmt = PIX_FMT_PAL8;
+ vid->width = avio_rl16(pb);
+ vid->height = avio_rl16(pb);
vid->bethsoft_global_delay = avio_rl16(pb);
avio_rl16(pb);
- // wait until the first audio packet to create the audio stream
+ // wait until the first packet to create each stream
+ vid->video_index = -1;
vid->audio_index = -1;
+ vid->sample_rate = DEFAULT_SAMPLE_RATE;
s->ctx_flags |= AVFMTCTX_NOHEADER;
return 0;
#define BUFFER_PADDING_SIZE 1000
static int read_frame(BVID_DemuxContext *vid, AVIOContext *pb, AVPacket *pkt,
- uint8_t block_type, AVFormatContext *s, int npixels)
+ uint8_t block_type, AVFormatContext *s)
{
uint8_t * vidbuf_start = NULL;
int vidbuf_nbytes = 0;
int code;
int bytes_copied = 0;
- int position, duration;
+ int position, duration, npixels;
unsigned int vidbuf_capacity;
int ret = 0;
+ AVStream *st;
+
+ if (vid->video_index < 0) {
+ st = avformat_new_stream(s, NULL);
+ if (!st)
+ return AVERROR(ENOMEM);
+ vid->video_index = st->index;
+ if (vid->audio_index < 0) {
+ avpriv_request_sample(s, "Using default video time base since "
+ "having no audio packet before the first "
+ "video packet");
+ }
+ avpriv_set_pts_info(st, 64, 185, vid->sample_rate);
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = AV_CODEC_ID_BETHSOFTVID;
+ st->codec->width = vid->width;
+ st->codec->height = vid->height;
+ }
+ st = s->streams[vid->video_index];
+ npixels = st->codec->width * st->codec->height;
vidbuf_start = av_malloc(vidbuf_capacity = BUFFER_PADDING_SIZE);
if(!vidbuf_start)
if ((ret = av_new_packet(pkt, vidbuf_nbytes)) < 0)
goto fail;
memcpy(pkt->data, vidbuf_start, vidbuf_nbytes);
- av_free(vidbuf_start);
pkt->pos = position;
pkt->stream_index = vid->video_index;
if (vid->palette) {
uint8_t *pdata = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
BVID_PALETTE_SIZE);
+ if (!pdata) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
memcpy(pdata, vid->palette, BVID_PALETTE_SIZE);
av_freep(&vid->palette);
}
vid->nframes--; // used to check if all the frames were read
- return 0;
fail:
av_free(vidbuf_start);
return ret;
return AVERROR(ENOMEM);
vid->audio_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_PCM_U8;
+ st->codec->codec_id = AV_CODEC_ID_PCM_U8;
st->codec->channels = 1;
+ st->codec->channel_layout = AV_CH_LAYOUT_MONO;
st->codec->bits_per_coded_sample = 8;
st->codec->sample_rate = vid->sample_rate;
st->codec->bit_rate = 8 * st->codec->sample_rate;
case VIDEO_P_FRAME:
case VIDEO_YOFF_P_FRAME:
case VIDEO_I_FRAME:
- return read_frame(vid, pb, pkt, block_type, s,
- s->streams[0]->codec->width * s->streams[0]->codec->height);
+ return read_frame(vid, pb, pkt, block_type, s);
case EOF_BLOCK:
if(vid->nframes != 0)
AVInputFormat ff_bethsoftvid_demuxer = {
.name = "bethsoftvid",
- .long_name = NULL_IF_CONFIG_SMALL("Bethesda Softworks VID format"),
+ .long_name = NULL_IF_CONFIG_SMALL("Bethesda Softworks VID"),
.priv_data_size = sizeof(BVID_DemuxContext),
.read_probe = vid_probe,
.read_header = vid_read_header,