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aacparse: Fix counting audio channels in program_config_element

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9074>
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changyong.ahn 2025-06-11 10:05:21 +09:00 committed by GStreamer Marge Bot
parent 300ff38178
commit 163e9e8df4
1 changed files with 4 additions and 3 deletions
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7
subprojects/gst-plugins-good/gst/audioparsers/gstaacparse.c
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@ -557,9 +557,9 @@ gst_aac_parse_program_config_element (GstAacParse * aacparse,
guint8 num_lfe_channel_elements; guint8 num_lfe_channel_elements;
guint8 program_config_skipping_data; guint8 program_config_skipping_data;
guint8 mixdown_present_skipflag; guint8 mixdown_present_skipflag;
guint8 G_GNUC_UNUSED is_cpe; guint8 is_cpe;
guint8 G_GNUC_UNUSED total_num_channel_elements; guint8 total_num_channel_elements;
guint8 G_GNUC_UNUSED total_num_channel; guint8 total_num_channel;
guint8 channel_element_tag; guint8 channel_element_tag;
if (!gst_bit_reader_get_bits_uint8 (br, &element_instance_tag, 4)) if (!gst_bit_reader_get_bits_uint8 (br, &element_instance_tag, 4))
@ -611,6 +611,7 @@ gst_aac_parse_program_config_element (GstAacParse * aacparse,
num_back_channel_elements; num_back_channel_elements;
total_num_channel = total_num_channel_elements + num_lfe_channel_elements; total_num_channel = total_num_channel_elements + num_lfe_channel_elements;
// If cpe (coupled), then each single channel element represents two channels
for (guint8 i = 0; i < total_num_channel_elements; i++) { for (guint8 i = 0; i < total_num_channel_elements; i++) {
if (!gst_bit_reader_get_bits_uint8 (br, &is_cpe, 1)) if (!gst_bit_reader_get_bits_uint8 (br, &is_cpe, 1))
return FALSE; return FALSE;