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Fix playback of certain invalid muxed streams. Partial fix for #149158

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Original commit message from CVS:
Fix playback of certain invalid muxed streams. Partial fix for #149158
This commit is contained in:
Maciej Katafiasz 2005-02-21 18:58:46 +00:00
parent f509149223
commit 440d1d81ff
3 changed files with 48 additions and 6 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2005-02-21 Maciej Katafiasz <mathrick@freedesktop.org>
* ext/faad/gstfaad.c: (gst_faad_sinkconnect), (gst_faad_chain):
* ext/faad/gstfaad.h:
TEH LONGEST DEBUGGING SESSION EVAR is over. Fix interaction with
certain invalid muxed streams, where some packets will contain
junk after decoder data. Fixes
2005-02-21 Jan Schmidt <thaytan@mad.scientist.com>
* gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_chain):
Make sure we only write to writable buffers

45
ext/faad/gstfaad.c
View file

@ -282,11 +282,17 @@ gst_faad_sinkconnect (GstPad * pad, const GstCaps * caps)
const GValue *value;
GstBuffer *buf;
/* Assume raw stream */
faad->packetised = FALSE;
if ((value = gst_structure_get_value (str, "codec_data"))) {
gulong samplerate;
guchar channels;
/* We have codec data, means packetised stream */
faad->packetised = TRUE;
buf = g_value_get_boxed (value);
/* someone forgot that char can be unsigned when writing the API */
if ((gint8) faacDecInit2 (faad->handle, GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (buf), &samplerate, &channels) < 0)
@ -540,12 +546,14 @@ static void
gst_faad_chain (GstPad * pad, GstData * data)
{
guint input_size;
guint skip_bytes = 0;
guchar *input_data;
GstFaad *faad = GST_FAAD (gst_pad_get_parent (pad));
GstBuffer *buf, *outbuf;
faacDecFrameInfo *info;
guint64 next_ts;
void *out;
gboolean run_loop = TRUE;
if (GST_IS_EVENT (data)) {
GstEvent *event = GST_EVENT (data);
@ -579,12 +587,20 @@ gst_faad_chain (GstPad * pad, GstData * data)
if (!faad->init) {
gulong samplerate;
guchar channels;
glong init_res;
faacDecInit (faad->handle,
init_res = faacDecInit (faad->handle,
GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf), &samplerate, &channels);
if (init_res < 0) {
GST_ELEMENT_ERROR (faad, STREAM, DECODE, (NULL),
("Failed to init decoder from stream"));
return;
}
skip_bytes = init_res;
faad->init = TRUE;
/* store for renegotiation later on */
/* FIXME: that's moot, info will get zeroed in DecDecode() */
info->samplerate = samplerate;
info->channels = channels;
} else {
@ -595,9 +611,26 @@ gst_faad_chain (GstPad * pad, GstData * data)
/* decode cycle */
input_data = GST_BUFFER_DATA (buf);
input_size = GST_BUFFER_SIZE (buf);
info->bytesconsumed = input_size;
while (input_size >= FAAD_MIN_STREAMSIZE && info->bytesconsumed > 0) {
out = faacDecDecode (faad->handle, info, input_data, input_size);
info->bytesconsumed = input_size - skip_bytes;
if (!faad->packetised) {
/* We must check that ourselves for raw stream */
run_loop = (input_size >= FAAD_MIN_STREAMSIZE);
}
while ((input_size > 0) && run_loop) {
if (faad->packetised) {
/* Only one packet per buffer, no matter how much is really consumed */
run_loop = FALSE;
} else {
if (input_size < FAAD_MIN_STREAMSIZE || info->bytesconsumed <= 0) {
break;
}
}
out = faacDecDecode (faad->handle, info, input_data + skip_bytes,
input_size - skip_bytes);
if (info->error) {
GST_ELEMENT_ERROR (faad, STREAM, DECODE, (NULL),
("Failed to decode buffer: %s",
@ -662,8 +695,8 @@ gst_faad_chain (GstPad * pad, GstData * data)
}
}
/* Keep the leftovers */
if (input_size > 0) {
/* Keep the leftovers in raw stream */
if (input_size > 0 && !faad->packetised) {
if (input_size < GST_BUFFER_SIZE (buf)) {
faad->tempbuf = gst_buffer_create_sub (buf,
GST_BUFFER_SIZE (buf) - input_size, input_size);

1
ext/faad/gstfaad.h
View file

@ -57,6 +57,7 @@ typedef struct _GstFaad {
/* FAAD channel setup */
guchar *channel_positions;
gboolean need_channel_setup;
gboolean packetised; /* We must differentiate between raw and packetised streams */
} GstFaad;
typedef struct _GstFaadClass {