static int libschroedinger_decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
int64_t pts = avpkt->pts;
SchroTag *tag;
SchroDecoderParams *p_schro_params = avctx->priv_data;
SchroDecoder *decoder = p_schro_params->decoder;
SchroBuffer *enc_buf;
SchroFrame* frame;
AVFrame *avframe = data;
int state;
int go = 1;
int outer = 1;
SchroParseUnitContext parse_ctx;
LibSchroFrameContext *framewithpts = NULL;
*got_frame = 0;
parse_context_init(&parse_ctx, buf, buf_size);
if (!buf_size) {
if (!p_schro_params->eos_signalled) {
state = schro_decoder_push_end_of_stream(decoder);
p_schro_params->eos_signalled = 1;
}
}
/* Loop through all the individual parse units in the input buffer */
do {
if ((enc_buf = find_next_parse_unit(&parse_ctx))) {
/* Set Schrotag with the pts to be recovered after decoding*/
enc_buf->tag = schro_tag_new(av_malloc(sizeof(int64_t)), av_free);
if (!enc_buf->tag->value) {
av_log(avctx, AV_LOG_ERROR, "Unable to allocate SchroTag\n");
return AVERROR(ENOMEM);
}
AV_WN(64, enc_buf->tag->value, pts);
/* Push buffer into decoder. */
if (SCHRO_PARSE_CODE_IS_PICTURE(enc_buf->data[4]) &&
SCHRO_PARSE_CODE_NUM_REFS(enc_buf->data[4]) > 0)
avctx->has_b_frames = 1;
state = schro_decoder_push(decoder, enc_buf);
if (state == SCHRO_DECODER_FIRST_ACCESS_UNIT)
libschroedinger_handle_first_access_unit(avctx);
go = 1;
} else
outer = 0;
while (go) {
/* Parse data and process result. */
state = schro_decoder_wait(decoder);
switch (state) {
case SCHRO_DECODER_FIRST_ACCESS_UNIT:
libschroedinger_handle_first_access_unit(avctx);
break;
case SCHRO_DECODER_NEED_BITS:
/* Need more input data - stop iterating over what we have. */
go = 0;
break;
case SCHRO_DECODER_NEED_FRAME:
/* Decoder needs a frame - create one and push it in. */
frame = ff_create_schro_frame(avctx,
p_schro_params->frame_format);
if (!frame)
return AVERROR(ENOMEM);
schro_decoder_add_output_picture(decoder, frame);
break;
case SCHRO_DECODER_OK:
/* Pull a frame out of the decoder. */
tag = schro_decoder_get_picture_tag(decoder);
frame = schro_decoder_pull(decoder);
if (frame) {
/* Add relation between schroframe and pts. */
framewithpts = av_malloc(sizeof(LibSchroFrameContext));
if (!framewithpts) {
av_log(avctx, AV_LOG_ERROR, "Unable to allocate FrameWithPts\n");
return AVERROR(ENOMEM);
}
framewithpts->frame = frame;
framewithpts->pts = AV_RN64(tag->value);
ff_schro_queue_push_back(&p_schro_params->dec_frame_queue,
framewithpts);
}
break;
case SCHRO_DECODER_EOS:
go = 0;
p_schro_params->eos_pulled = 1;
schro_decoder_reset(decoder);
outer = 0;
break;
case SCHRO_DECODER_ERROR:
return -1;
break;
}
}
} while (outer);
/* Grab next frame to be returned from the top of the queue. */
framewithpts = ff_schro_queue_pop(&p_schro_params->dec_frame_queue);
if (framewithpts && framewithpts->frame) {
int ret;
if ((ret = ff_get_buffer(avctx, avframe, 0)) < 0)
return ret;
memcpy(avframe->data[0],
framewithpts->frame->components[0].data,
framewithpts->frame->components[0].length);
memcpy(avframe->data[1],
framewithpts->frame->components[1].data,
framewithpts->frame->components[1].length);
memcpy(avframe->data[2],
framewithpts->frame->components[2].data,
framewithpts->frame->components[2].length);
/* Fill frame with current buffer data from Schroedinger. */
avframe->pkt_pts = framewithpts->pts;
avframe->linesize[0] = framewithpts->frame->components[0].stride;
avframe->linesize[1] = framewithpts->frame->components[1].stride;
avframe->linesize[2] = framewithpts->frame->components[2].stride;
*got_frame = 1;
/* Now free the frame resources. */
libschroedinger_decode_frame_free(framewithpts->frame);
av_free(framewithpts);
} else {
data = NULL;
*got_frame = 0;
}
return buf_size;
}
int
main (int argc, char *argv[])
{
enum { HELP_OPTION = CHAR_MAX + 1 };
static const char *options = "V";
static const struct option long_options[] = {
{ "help", 0, 0, HELP_OPTION },
{ "compat-1.24.0", 0, 0, 0 },
{ "compat-1.24.1", 0, 0, 0 },
{ "version", 0, 0, 'V' },
{ 0, 0, 0, 0 }
};
int c;
int option_index;
int compat_1_24_0 = 0;
int compat_1_24_1 = 0;
const char *input;
struct section *sections;
struct parse_context context;
FILE *in;
int ret;
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEBASEDIR);
textdomain (PACKAGE);
parse_context_init (&context);
for (;;) {
c = getopt_long (argc, argv, options, long_options, &option_index);
if (c == -1) break;
switch (c) {
case 0: /* options which are long only */
if (STREQ (long_options[option_index].name, "compat-1.24.0"))
compat_1_24_0 = compat_1_24_1 = 1;
else if (STREQ (long_options[option_index].name, "compat-1.24.1"))
compat_1_24_1 = 1;
else {
fprintf (stderr, _("%s: unknown long option: %s (%d)\n"),
guestfs_int_program_name, long_options[option_index].name, option_index);
exit (EXIT_FAILURE);
}
break;
case 'V':
printf ("%s %s%s\n",
guestfs_int_program_name,
PACKAGE_VERSION, PACKAGE_VERSION_EXTRA);
exit (EXIT_SUCCESS);
case HELP_OPTION:
usage (EXIT_SUCCESS);
default:
usage (EXIT_FAILURE);
}
}
if (optind != argc-1)
usage (EXIT_FAILURE);
input = argv[optind++];
in = fopen (input, "r");
if (in == NULL) {
perror (input);
exit (EXIT_FAILURE);
}
ret = do_parse (&context, in);
if (fclose (in) == EOF) {
fprintf (stderr, _("%s: %s: error closing input file: %m (ignored)\n"),
guestfs_int_program_name, input);
}
if (ret != 0) {
parse_context_free (&context);
fprintf (stderr, _("%s: '%s' could not be validated, see errors above\n"),
guestfs_int_program_name, input);
exit (EXIT_FAILURE);
}
if (compat_1_24_1 && context.seen_comments) {
parse_context_free (&context);
fprintf (stderr, _("%s: %s contains comments which will not work with virt-builder 1.24.1\n"),
guestfs_int_program_name, input);
exit (EXIT_FAILURE);
}
/* Iterate over the parsed sections, semantically validating it. */
for (sections = context.parsed_index; sections != NULL; sections = sections->next) {
int seen_sig = 0;
struct field *fields;
if (compat_1_24_0) {
if (strchr (sections->name, '_')) {
parse_context_free (&context);
fprintf (stderr, _("%s: %s: section [%s] has invalid characters which will not work with virt-builder 1.24.0\n"),
guestfs_int_program_name, input, sections->name);
exit (EXIT_FAILURE);
}
}
for (fields = sections->fields; fields != NULL; fields = fields->next) {
if (compat_1_24_0) {
if (strchr (fields->key, '[') ||
strchr (fields->key, ']')) {
parse_context_free (&context);
fprintf (stderr, _("%s: %s: section [%s], field '%s' has invalid characters which will not work with virt-builder 1.24.0\n"),
guestfs_int_program_name, input, sections->name, fields->key);
exit (EXIT_FAILURE);
}
}
if (compat_1_24_1) {
if (strchr (fields->key, '.') ||
strchr (fields->key, ',')) {
parse_context_free (&context);
fprintf (stderr, _("%s: %s: section [%s], field '%s' has invalid characters which will not work with virt-builder 1.24.1\n"),
guestfs_int_program_name, input, sections->name, fields->key);
exit (EXIT_FAILURE);
}
}
if (STREQ (fields->key, "sig"))
seen_sig = 1;
}
if (compat_1_24_0 && !seen_sig) {
parse_context_free (&context);
fprintf (stderr, _("%s: %s: section [%s] is missing a 'sig' field which will not work with virt-builder 1.24.0\n"),
guestfs_int_program_name, input, sections->name);
exit (EXIT_FAILURE);
}
}
/* Free the parsed data. */
parse_context_free (&context);
printf ("%s validated OK\n", input);
exit (EXIT_SUCCESS);
}
