return res;
}
-
-#define SINT (GST_AUDIO_FORMAT_FLAG_INTEGER | GST_AUDIO_FORMAT_FLAG_SIGNED)
-#define UINT (GST_AUDIO_FORMAT_FLAG_INTEGER)
-
-#define MAKE_FORMAT(str,flags,end,width,depth,silent) \
- { GST_AUDIO_FORMAT_ ##str, G_STRINGIFY(str), flags, end, width, depth, silent }
-
-#define SILENT_0 { 0, 0, 0, 0, 0, 0, 0, 0 }
-#define SILENT_U8 { 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 }
-#define SILENT_U16_LE { 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80 }
-#define SILENT_U16_BE { 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00 }
-#define SILENT_U24_LE { 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00 }
-#define SILENT_U24_BE { 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00 }
-#define SILENT_U32_LE { 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80 }
-#define SILENT_U32_BE { 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 }
-#define SILENT_U24_3LE { 0x00, 0x00, 0x80, 0x00, 0x00, 0x80 }
-#define SILENT_U24_3BE { 0x80, 0x00, 0x00, 0x80, 0x00, 0x00 }
-#define SILENT_U20_3LE { 0x00, 0x00, 0x08, 0x00, 0x00, 0x08 }
-#define SILENT_U20_3BE { 0x08, 0x00, 0x00, 0x08, 0x00, 0x00 }
-#define SILENT_U18_3LE { 0x00, 0x00, 0x02, 0x00, 0x00, 0x02 }
-#define SILENT_U18_3BE { 0x02, 0x00, 0x00, 0x02, 0x00, 0x00 }
-
-static GstAudioFormatInfo formats[] = {
- {GST_AUDIO_FORMAT_UNKNOWN, "UNKNOWN", 0, 0, 0, 0},
- /* 8 bit */
- MAKE_FORMAT (S8, SINT, 0, 8, 8, SILENT_0),
- MAKE_FORMAT (U8, UINT, 0, 8, 8, SILENT_U8),
- /* 16 bit */
- MAKE_FORMAT (S16_LE, SINT, G_LITTLE_ENDIAN, 16, 16, SILENT_0),
- MAKE_FORMAT (S16_BE, SINT, G_BIG_ENDIAN, 16, 16, SILENT_0),
- MAKE_FORMAT (U16_LE, UINT, G_LITTLE_ENDIAN, 16, 16, SILENT_U16_LE),
- MAKE_FORMAT (U16_BE, UINT, G_BIG_ENDIAN, 16, 16, SILENT_U16_BE),
- /* 24 bit in low 3 bytes of 32 bits */
- MAKE_FORMAT (S24_LE, SINT, G_LITTLE_ENDIAN, 32, 24, SILENT_0),
- MAKE_FORMAT (S24_BE, SINT, G_BIG_ENDIAN, 32, 24, SILENT_0),
- MAKE_FORMAT (U24_LE, UINT, G_LITTLE_ENDIAN, 32, 24, SILENT_U24_LE),
- MAKE_FORMAT (U24_BE, UINT, G_BIG_ENDIAN, 32, 24, SILENT_U24_BE),
- /* 32 bit */
- MAKE_FORMAT (S32_LE, SINT, G_LITTLE_ENDIAN, 32, 32, SILENT_0),
- MAKE_FORMAT (S32_BE, SINT, G_BIG_ENDIAN, 32, 32, SILENT_0),
- MAKE_FORMAT (U32_LE, UINT, G_LITTLE_ENDIAN, 32, 32, SILENT_U32_LE),
- MAKE_FORMAT (U32_BE, UINT, G_BIG_ENDIAN, 32, 32, SILENT_U32_BE),
- /* 24 bit in 3 bytes */
- MAKE_FORMAT (S24_3LE, SINT, G_LITTLE_ENDIAN, 24, 24, SILENT_0),
- MAKE_FORMAT (S24_3BE, SINT, G_BIG_ENDIAN, 24, 24, SILENT_0),
- MAKE_FORMAT (U24_3LE, UINT, G_LITTLE_ENDIAN, 24, 24, SILENT_U24_3LE),
- MAKE_FORMAT (U24_3BE, UINT, G_BIG_ENDIAN, 24, 24, SILENT_U24_3BE),
- /* 20 bit in 3 bytes */
- MAKE_FORMAT (S20_3LE, SINT, G_LITTLE_ENDIAN, 24, 20, SILENT_0),
- MAKE_FORMAT (S20_3BE, SINT, G_BIG_ENDIAN, 24, 20, SILENT_0),
- MAKE_FORMAT (U20_3LE, UINT, G_LITTLE_ENDIAN, 24, 20, SILENT_U20_3LE),
- MAKE_FORMAT (U20_3BE, UINT, G_BIG_ENDIAN, 24, 20, SILENT_U20_3BE),
- /* 18 bit in 3 bytes */
- MAKE_FORMAT (S18_3LE, SINT, G_LITTLE_ENDIAN, 24, 18, SILENT_0),
- MAKE_FORMAT (S18_3BE, SINT, G_BIG_ENDIAN, 24, 18, SILENT_0),
- MAKE_FORMAT (U18_3LE, UINT, G_LITTLE_ENDIAN, 24, 18, SILENT_U18_3LE),
- MAKE_FORMAT (U18_3BE, UINT, G_BIG_ENDIAN, 24, 18, SILENT_U18_3BE),
- /* float */
- MAKE_FORMAT (F32_LE, GST_AUDIO_FORMAT_FLAG_FLOAT, G_LITTLE_ENDIAN, 32, 32,
- SILENT_0),
- MAKE_FORMAT (F32_BE, GST_AUDIO_FORMAT_FLAG_FLOAT, G_BIG_ENDIAN, 32, 32,
- SILENT_0),
- MAKE_FORMAT (F64_LE, GST_AUDIO_FORMAT_FLAG_FLOAT, G_LITTLE_ENDIAN, 64, 64,
- SILENT_0),
- MAKE_FORMAT (F64_BE, GST_AUDIO_FORMAT_FLAG_FLOAT, G_BIG_ENDIAN, 64, 64,
- SILENT_0)
-};
-
-static GstAudioFormat
-gst_audio_format_from_caps_structure (const GstStructure * s)
-{
- gint endianness, width, depth;
- guint i;
-
- if (gst_structure_has_name (s, "audio/x-raw-int")) {
- gboolean sign;
-
- if (!gst_structure_get_boolean (s, "signed", &sign))
- goto missing_field_signed;
-
- if (!gst_structure_get_int (s, "endianness", &endianness))
- goto missing_field_endianness;
-
- if (!gst_structure_get_int (s, "width", &width))
- goto missing_field_width;
-
- if (!gst_structure_get_int (s, "depth", &depth))
- goto missing_field_depth;
-
- for (i = 0; i < G_N_ELEMENTS (formats); i++) {
- if (GST_AUDIO_FORMAT_INFO_IS_INTEGER (&formats[i]) &&
- sign == GST_AUDIO_FORMAT_INFO_IS_SIGNED (&formats[i]) &&
- GST_AUDIO_FORMAT_INFO_ENDIANNESS (&formats[i]) == endianness &&
- GST_AUDIO_FORMAT_INFO_WIDTH (&formats[i]) == width &&
- GST_AUDIO_FORMAT_INFO_DEPTH (&formats[i]) == depth) {
- return GST_AUDIO_FORMAT_INFO_FORMAT (&formats[i]);
- }
- }
- } else if (gst_structure_has_name (s, "audio/x-raw-float")) {
- /* fallbacks are for backwards compatibility (is this needed at all?) */
- if (!gst_structure_get_int (s, "endianness", &endianness)) {
- GST_WARNING ("float audio caps without endianness %" GST_PTR_FORMAT, s);
- endianness = G_BYTE_ORDER;
- }
-
- if (!gst_structure_get_int (s, "width", &width)) {
- GST_WARNING ("float audio caps without width %" GST_PTR_FORMAT, s);
- width = 32;
- }
-
- for (i = 0; i < G_N_ELEMENTS (formats); i++) {
- if (GST_AUDIO_FORMAT_INFO_IS_FLOAT (&formats[i]) &&
- GST_AUDIO_FORMAT_INFO_ENDIANNESS (&formats[i]) == endianness &&
- GST_AUDIO_FORMAT_INFO_WIDTH (&formats[i]) == width) {
- return GST_AUDIO_FORMAT_INFO_FORMAT (&formats[i]);
- }
- }
- }
-
- /* no match */
- return GST_AUDIO_FORMAT_UNKNOWN;
-
-missing_field_signed:
- {
- GST_ERROR ("missing 'signed' field in audio caps %" GST_PTR_FORMAT, s);
- return GST_AUDIO_FORMAT_UNKNOWN;
- }
-missing_field_endianness:
- {
- GST_ERROR ("missing 'endianness' field in audio caps %" GST_PTR_FORMAT, s);
- return GST_AUDIO_FORMAT_UNKNOWN;
- }
-missing_field_depth:
- {
- GST_ERROR ("missing 'depth' field in audio caps %" GST_PTR_FORMAT, s);
- return GST_AUDIO_FORMAT_UNKNOWN;
- }
-missing_field_width:
- {
- GST_ERROR ("missing 'width' field in audio caps %" GST_PTR_FORMAT, s);
- return GST_AUDIO_FORMAT_UNKNOWN;
- }
-}
-
-/* FIXME: remove these if we don't actually go for deep alloc positions */
-void
-gst_audio_info_init (GstAudioInfo * info)
-{
- memset (info, 0, sizeof (GstAudioInfo));
-}
-
-void
-gst_audio_info_clear (GstAudioInfo * info)
-{
- memset (info, 0, sizeof (GstAudioInfo));
-}
-
-GstAudioInfo *
-gst_audio_info_copy (GstAudioInfo * info)
-{
- return (GstAudioInfo *) g_slice_copy (sizeof (GstAudioInfo), info);
-}
-
-void
-gst_audio_info_free (GstAudioInfo * info)
-{
- g_slice_free (GstAudioInfo, info);
-}
-
-static void
-gst_audio_info_set_format (GstAudioInfo * info, GstAudioFormat format,
- gint rate, gint channels)
-{
- const GstAudioFormatInfo *finfo;
-
- g_return_if_fail (info != NULL);
- g_return_if_fail (format != GST_AUDIO_FORMAT_UNKNOWN);
-
- finfo = &formats[format];
-
- info->flags = 0;
- info->finfo = finfo;
- info->rate = rate;
- info->channels = channels;
- info->bpf = (finfo->width * channels) / 8;
-}
-
-/* from multichannel.c */
-void priv_gst_audio_info_fill_default_channel_positions (GstAudioInfo * info);
-
-/**
- * gst_audio_info_from_caps:
- * @info: a #GstAudioInfo
- * @caps: a #GstCaps
- *
- * Parse @caps and update @info.
- *
- * Returns: TRUE if @caps could be parsed
- *
- * Since: 0.10.36
- */
-gboolean
-gst_audio_info_from_caps (GstAudioInfo * info, const GstCaps * caps)
-{
- GstStructure *str;
- GstAudioFormat format;
- gint rate, channels;
- const GValue *pos_val_arr, *pos_val_entry;
- gint i;
-
- g_return_val_if_fail (info != NULL, FALSE);
- g_return_val_if_fail (caps != NULL, FALSE);
- g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
-
- GST_DEBUG ("parsing caps %" GST_PTR_FORMAT, caps);
-
- str = gst_caps_get_structure (caps, 0);
-
- format = gst_audio_format_from_caps_structure (str);
- if (format == GST_AUDIO_FORMAT_UNKNOWN)
- goto unknown_format;
-
- if (!gst_structure_get_int (str, "rate", &rate))
- goto no_rate;
- if (!gst_structure_get_int (str, "channels", &channels))
- goto no_channels;
-
- gst_audio_info_set_format (info, format, rate, channels);
-
- pos_val_arr = gst_structure_get_value (str, "channel-positions");
- if (pos_val_arr) {
- if (channels <= G_N_ELEMENTS (info->position)) {
- for (i = 0; i < channels; i++) {
- pos_val_entry = gst_value_array_get_value (pos_val_arr, i);
- info->position[i] = g_value_get_enum (pos_val_entry);
- }
- } else {
- /* for that many channels, the positions are always NONE */
- for (i = 0; i < G_N_ELEMENTS (info->position); i++)
- info->position[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
- info->flags |= GST_AUDIO_FLAG_DEFAULT_POSITIONS;
- }
- } else {
- info->flags |= GST_AUDIO_FLAG_DEFAULT_POSITIONS;
- priv_gst_audio_info_fill_default_channel_positions (info);
- }
-
- return TRUE;
-
- /* ERROR */
-unknown_format:
- {
- GST_ERROR ("unknown format given");
- return FALSE;
- }
-no_rate:
- {
- GST_ERROR ("no rate property given");
- return FALSE;
- }
-no_channels:
- {
- GST_ERROR ("no channels property given");
- return FALSE;
- }
-}
-
-/**
- * gst_audio_info_to_caps:
- * @info: a #GstAudioInfo
- *
- * Convert the values of @info into a #GstCaps.
- *
- * Returns: (transfer full): the new #GstCaps containing the
- * info of @info.
- *
- * Since: 0.10.36
- */
-GstCaps *
-gst_audio_info_to_caps (GstAudioInfo * info)
-{
- GstCaps *caps;
-
- g_return_val_if_fail (info != NULL, NULL);
- g_return_val_if_fail (info->finfo != NULL, NULL);
- g_return_val_if_fail (info->finfo->format != GST_AUDIO_FORMAT_UNKNOWN, NULL);
-
- if (GST_AUDIO_FORMAT_INFO_IS_INTEGER (info->finfo)) {
- caps = gst_caps_new_simple ("audio/x-raw-int",
- "width", G_TYPE_INT, GST_AUDIO_INFO_WIDTH (info),
- "depth", G_TYPE_INT, GST_AUDIO_INFO_DEPTH (info),
- "endianness", G_TYPE_INT,
- GST_AUDIO_FORMAT_INFO_ENDIANNESS (info->finfo), "signed",
- G_TYPE_BOOLEAN, GST_AUDIO_FORMAT_INFO_IS_SIGNED (info->finfo), "rate",
- G_TYPE_INT, GST_AUDIO_INFO_RATE (info), "channels", G_TYPE_INT,
- GST_AUDIO_INFO_CHANNELS (info), NULL);
- } else if (GST_AUDIO_FORMAT_INFO_IS_FLOAT (info->finfo)) {
- caps = gst_caps_new_simple ("audio/x-raw-float",
- "width", G_TYPE_INT, GST_AUDIO_INFO_WIDTH (info),
- "endianness", G_TYPE_INT,
- GST_AUDIO_FORMAT_INFO_ENDIANNESS (info->finfo), "rate", G_TYPE_INT,
- GST_AUDIO_INFO_RATE (info), "channels", G_TYPE_INT,
- GST_AUDIO_INFO_CHANNELS (info), NULL);
- } else {
- GST_ERROR ("unknown audio format, neither integer nor float");
- return NULL;
- }
-
- if (info->channels > 2) {
- GValue pos_val_arr = { 0 }
- , pos_val_entry = {
- 0};
- GstStructure *str;
- gint i;
-
- /* build gvaluearray from positions */
- g_value_init (&pos_val_arr, GST_TYPE_ARRAY);
- g_value_init (&pos_val_entry, GST_TYPE_AUDIO_CHANNEL_POSITION);
- for (i = 0; i < info->channels; i++) {
- /* if we have many many channels, all positions are NONE */
- if (info->channels <= 64)
- g_value_set_enum (&pos_val_entry, info->position[i]);
- else
- g_value_set_enum (&pos_val_entry, GST_AUDIO_CHANNEL_POSITION_NONE);
-
- gst_value_array_append_value (&pos_val_arr, &pos_val_entry);
- }
- g_value_unset (&pos_val_entry);
-
- /* add to structure */
- str = gst_caps_get_structure (caps, 0);
- gst_structure_set_value (str, "channel-positions", &pos_val_arr);
- g_value_unset (&pos_val_arr);
- }
-
- return caps;
-}
-
-/**
- * gst_audio_format_convert:
- * @info: a #GstAudioInfo
- * @src_format: #GstFormat of the @src_value
- * @src_value: value to convert
- * @dest_format: #GstFormat of the @dest_value
- * @dest_value: pointer to destination value
- *
- * Converts among various #GstFormat types. This function handles
- * GST_FORMAT_BYTES, GST_FORMAT_TIME, and GST_FORMAT_DEFAULT. For
- * raw audio, GST_FORMAT_DEFAULT corresponds to audio frames. This
- * function can be used to handle pad queries of the type GST_QUERY_CONVERT.
- *
- * Returns: TRUE if the conversion was successful.
- *
- * Since: 0.10.36
- */
-gboolean
-gst_audio_info_convert (GstAudioInfo * info,
- GstFormat src_fmt, gint64 src_val, GstFormat dest_fmt, gint64 * dest_val)
-{
- gboolean res = TRUE;
- gint bpf, rate;
-
- GST_DEBUG ("converting value %" G_GINT64_FORMAT " from %s (%d) to %s (%d)",
- src_val, gst_format_get_name (src_fmt), src_fmt,
- gst_format_get_name (dest_fmt), dest_fmt);
-
- if (src_fmt == dest_fmt || src_val == -1) {
- *dest_val = src_val;
- goto done;
- }
-
- /* get important info */
- bpf = GST_AUDIO_INFO_BPF (info);
- rate = GST_AUDIO_INFO_RATE (info);
-
- if (bpf == 0 || rate == 0) {
- GST_DEBUG ("no rate or bpf configured");
- res = FALSE;
- goto done;
- }
-
- switch (src_fmt) {
- case GST_FORMAT_BYTES:
- switch (dest_fmt) {
- case GST_FORMAT_TIME:
- *dest_val = GST_FRAMES_TO_CLOCK_TIME (src_val / bpf, rate);
- break;
- case GST_FORMAT_DEFAULT:
- *dest_val = src_val / bpf;
- break;
- default:
- res = FALSE;
- break;
- }
- break;
- case GST_FORMAT_DEFAULT:
- switch (dest_fmt) {
- case GST_FORMAT_TIME:
- *dest_val = GST_FRAMES_TO_CLOCK_TIME (src_val, rate);
- break;
- case GST_FORMAT_BYTES:
- *dest_val = src_val * bpf;
- break;
- default:
- res = FALSE;
- break;
- }
- break;
- case GST_FORMAT_TIME:
- switch (dest_fmt) {
- case GST_FORMAT_DEFAULT:
- *dest_val = GST_CLOCK_TIME_TO_FRAMES (src_val, rate);
- break;
- case GST_FORMAT_BYTES:
- *dest_val = GST_CLOCK_TIME_TO_FRAMES (src_val, rate);
- *dest_val *= bpf;
- break;
- default:
- res = FALSE;
- break;
- }
- break;
- default:
- res = FALSE;
- break;
- }
-done:
- GST_DEBUG ("ret=%d result %" G_GINT64_FORMAT, res, *dest_val);
-
- return res;
-}
-
/**
* gst_audio_buffer_clip:
* @buffer: The buffer to clip.
projects / platform / upstream / gstreamer.git / commitdiff