*/
#include "libavutil/intreadwrite.h"
+#include "libavutil/intfloat_readwrite.h"
#include "avformat.h"
#include "riff.h"
#define PKTSIZE(s) (s & 0xffffff)
/**
- * \brief read until we found all data needed for decoding
- * \param vst video stream of which to change parameters
- * \param ast video stream of which to change parameters
- * \param myth set if this is a MythTVVideo format file
- * \return 1 if all required codec data was found
+ * @brief read until we found all data needed for decoding
+ * @param vst video stream of which to change parameters
+ * @param ast video stream of which to change parameters
+ * @param myth set if this is a MythTVVideo format file
+ * @return 1 if all required codec data was found
*/
static int get_codec_data(AVIOContext *pb, AVStream *vst,
AVStream *ast, int myth) {
return 1; // no codec data needed
while (!url_feof(pb)) {
int size, subtype;
- frametype = get_byte(pb);
+ frametype = avio_r8(pb);
switch (frametype) {
case NUV_EXTRADATA:
- subtype = get_byte(pb);
- url_fskip(pb, 6);
- size = PKTSIZE(get_le32(pb));
+ subtype = avio_r8(pb);
+ avio_skip(pb, 6);
+ size = PKTSIZE(avio_rl32(pb));
if (vst && subtype == 'R') {
vst->codec->extradata_size = size;
vst->codec->extradata = av_malloc(size);
- get_buffer(pb, vst->codec->extradata, size);
+ avio_read(pb, vst->codec->extradata, size);
size = 0;
if (!myth)
return 1;
}
break;
case NUV_MYTHEXT:
- url_fskip(pb, 7);
- size = PKTSIZE(get_le32(pb));
+ avio_skip(pb, 7);
+ size = PKTSIZE(avio_rl32(pb));
if (size != 128 * 4)
break;
- get_le32(pb); // version
+ avio_rl32(pb); // version
if (vst) {
- vst->codec->codec_tag = get_le32(pb);
+ vst->codec->codec_tag = avio_rl32(pb);
vst->codec->codec_id =
ff_codec_get_id(ff_codec_bmp_tags, vst->codec->codec_tag);
if (vst->codec->codec_tag == MKTAG('R', 'J', 'P', 'G'))
vst->codec->codec_id = CODEC_ID_NUV;
} else
- url_fskip(pb, 4);
+ avio_skip(pb, 4);
if (ast) {
- ast->codec->codec_tag = get_le32(pb);
- ast->codec->sample_rate = get_le32(pb);
- ast->codec->bits_per_coded_sample = get_le32(pb);
- ast->codec->channels = get_le32(pb);
+ ast->codec->codec_tag = avio_rl32(pb);
+ ast->codec->sample_rate = avio_rl32(pb);
+ ast->codec->bits_per_coded_sample = avio_rl32(pb);
+ ast->codec->channels = avio_rl32(pb);
ast->codec->codec_id =
ff_wav_codec_get_id(ast->codec->codec_tag,
ast->codec->bits_per_coded_sample);
ast->need_parsing = AVSTREAM_PARSE_FULL;
} else
- url_fskip(pb, 4 * 4);
+ avio_skip(pb, 4 * 4);
size -= 6 * 4;
- url_fskip(pb, size);
+ avio_skip(pb, size);
return 1;
case NUV_SEEKP:
size = 11;
break;
default:
- url_fskip(pb, 7);
- size = PKTSIZE(get_le32(pb));
+ avio_skip(pb, 7);
+ size = PKTSIZE(avio_rl32(pb));
break;
}
- url_fskip(pb, size);
+ avio_skip(pb, size);
}
return 0;
}
int is_mythtv, width, height, v_packs, a_packs;
int stream_nr = 0;
AVStream *vst = NULL, *ast = NULL;
- get_buffer(pb, id_string, 12);
+ avio_read(pb, id_string, 12);
is_mythtv = !memcmp(id_string, "MythTVVideo", 12);
- url_fskip(pb, 5); // version string
- url_fskip(pb, 3); // padding
- width = get_le32(pb);
- height = get_le32(pb);
- get_le32(pb); // unused, "desiredwidth"
- get_le32(pb); // unused, "desiredheight"
- get_byte(pb); // 'P' == progressive, 'I' == interlaced
- url_fskip(pb, 3); // padding
- aspect = av_int2dbl(get_le64(pb));
+ avio_skip(pb, 5); // version string
+ avio_skip(pb, 3); // padding
+ width = avio_rl32(pb);
+ height = avio_rl32(pb);
+ avio_rl32(pb); // unused, "desiredwidth"
+ avio_rl32(pb); // unused, "desiredheight"
+ avio_r8(pb); // 'P' == progressive, 'I' == interlaced
+ avio_skip(pb, 3); // padding
+ aspect = av_int2dbl(avio_rl64(pb));
if (aspect > 0.9999 && aspect < 1.0001)
aspect = 4.0 / 3.0;
- fps = av_int2dbl(get_le64(pb));
+ fps = av_int2dbl(avio_rl64(pb));
// number of packets per stream type, -1 means unknown, e.g. streaming
- v_packs = get_le32(pb);
- a_packs = get_le32(pb);
- get_le32(pb); // text
+ v_packs = avio_rl32(pb);
+ a_packs = avio_rl32(pb);
+ avio_rl32(pb); // text
- get_le32(pb); // keyframe distance (?)
+ avio_rl32(pb); // keyframe distance (?)
if (v_packs) {
ctx->v_id = stream_nr++;
int ret, size;
while (!url_feof(pb)) {
int copyhdrsize = ctx->rtjpg_video ? HDRSIZE : 0;
- uint64_t pos = url_ftell(pb);
- ret = get_buffer(pb, hdr, HDRSIZE);
+ uint64_t pos = avio_tell(pb);
+ ret = avio_read(pb, hdr, HDRSIZE);
if (ret < HDRSIZE)
return ret < 0 ? ret : AVERROR(EIO);
frametype = hdr[0];
switch (frametype) {
case NUV_EXTRADATA:
if (!ctx->rtjpg_video) {
- url_fskip(pb, size);
+ avio_skip(pb, size);
break;
}
case NUV_VIDEO:
if (ctx->v_id < 0) {
av_log(s, AV_LOG_ERROR, "Video packet in file without video stream!\n");
- url_fskip(pb, size);
+ avio_skip(pb, size);
break;
}
ret = av_new_packet(pkt, copyhdrsize + size);
pkt->pts = AV_RL32(&hdr[4]);
pkt->stream_index = ctx->v_id;
memcpy(pkt->data, hdr, copyhdrsize);
- ret = get_buffer(pb, pkt->data + copyhdrsize, size);
+ ret = avio_read(pb, pkt->data + copyhdrsize, size);
if (ret < 0) {
av_free_packet(pkt);
return ret;
case NUV_AUDIO:
if (ctx->a_id < 0) {
av_log(s, AV_LOG_ERROR, "Audio packet in file without audio stream!\n");
- url_fskip(pb, size);
+ avio_skip(pb, size);
break;
}
ret = av_get_packet(pb, pkt, size);
// contains no data, size value is invalid
break;
default:
- url_fskip(pb, size);
+ avio_skip(pb, size);
break;
}
}
}
AVInputFormat ff_nuv_demuxer = {
- "nuv",
- NULL_IF_CONFIG_SMALL("NuppelVideo format"),
- sizeof(NUVContext),
- nuv_probe,
- nuv_header,
- nuv_packet,
- NULL,
- NULL,
+ .name = "nuv",
+ .long_name = NULL_IF_CONFIG_SMALL("NuppelVideo format"),
+ .priv_data_size = sizeof(NUVContext),
+ .read_probe = nuv_probe,
+ .read_header = nuv_header,
+ .read_packet = nuv_packet,
.flags = AVFMT_GENERIC_INDEX,
};
projects / ffmpeg / blobdiff